CN103818842B - The self-locking of pillar and remote de-locking device - Google Patents
The self-locking of pillar and remote de-locking device Download PDFInfo
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- CN103818842B CN103818842B CN201410074774.9A CN201410074774A CN103818842B CN 103818842 B CN103818842 B CN 103818842B CN 201410074774 A CN201410074774 A CN 201410074774A CN 103818842 B CN103818842 B CN 103818842B
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- inner prop
- annular groove
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Abstract
The present invention discloses self-locking and the remote de-locking device of a kind of pillar, comprise pillar inner prop and pillar column jacket, also comprise locking cover, locking column and lock ball, locking cover be sheathed on pillar inner prop and pillar column jacket outside and can move axially and be fixed by spacing structure, locking is arranged with annular lock chamber and is connected pillar inner prop and the lockhole in annular lock chamber, one end of locking column is connected with pillar column jacket, the other end stretches into annular lock chamber and is provided with annular groove I, the outside of pillar inner prop is provided with annular groove II, lock ball is located in annular groove I and is entered described annular groove II by lockhole, annular groove I comprises end face that cross section is circular arc and cross section is the side of straight line, side comprises the retraction contact surface near pillar inner prop retraction end and the support face near pillar inner prop support end, the cross section straight line of two sides is the tangent line at the circular arc two ends, cross section of end face, remote auto locking when present invention achieves pillar support and can remote de-locking after rescue completes, it is to increase rescue efficiency, ensures the personnel safety of rescue personnel.
Description
Technical field
The present invention relates to a kind of self-locking device, in particular to self-locking and the remote de-locking device of a kind of pillar.
Background technology
In recent years, pillar is widely used in traffic rescue, earthquake rescue and mine rescue, weight is propped up to have a movable space or supporting to play the effect of protection for the weight being caving. After pillar support weight, do not loosen to ensure safety and support, pillar be locked. In existing technology, support function point extend to support target after locking normally adopt thread lock, it is low that this kind is locked in rescue process efficiency, in supporting for the local time that collapses, thread lock due to the used time long, and can not realize remote auto locking and remote de-locking operation. Thread lock not only extends the rescue time but also can not ensure the personnel safety of rescue personnel.
Therefore, it is necessary to research and develop self-locking and the remote de-locking device of a kind of pillar, it has remote lock and unlocking function, remote auto locking can be realized when pillar supporting, and after rescue completes can remote de-locking, with ensure rescue personnel in rescue process personnel safety and improve rescue efficiency.
Summary of the invention
In view of this, it is an object of the invention to provide the self-locking of a kind of pillar and remote de-locking device, can realize when pillar supporting remote auto locking, and after rescue completes can remote de-locking, with ensure rescue personnel in rescue process personnel safety and improve rescue efficiency.
The self-locking of the pillar of the present invention and remote de-locking device, comprise pillar inner prop and pillar column jacket, also comprise locking cover, locking column and lock ball, outside described locking cover is sheathed on described pillar inner prop and pillar column jacket and can move axially and be fixed by spacing structure, described locking is arranged with annular lock chamber and is connected described pillar inner prop and the lockhole in annular lock chamber, one end of described locking column is connected with described pillar column jacket, the other end stretches into described annular lock chamber and is provided with annular groove I, the outside of described pillar inner prop is provided with annular groove II, described lock ball is located in described annular groove I and is entered described annular groove II by described lockhole, described annular groove I comprises end face that cross section is circular arc and cross section is the side of straight line, and described side comprises the retraction contact surface near described pillar inner prop retraction end and the support face near described pillar inner prop support end, the cross section straight line of side described in two is the tangent line at the circular arc two ends, cross section of described end face, ultimate range between tangent line described in two is greater than the diameter of described lockhole near described annular lock one end, chamber, when described lock ball is fastened in described annular groove II and is subject to the retraction force of described pillar inner prop and described retraction contact surface is formed extruding, the angle between the normal of retraction force and described retraction contact surface is less than the self-locking angle of described lock ball.
Further, described lockhole is the tapered hole that outer imperial palace is little, and its diameter near described pillar inner prop one end is less than the diameter of described lock ball.
Further, the cross section of described annular groove II is circular arc, and described end face is identical with the radius of described lock ball with the arc radius of annular groove II.
Further, described locking cover comprises the locking overcoat removably connected and lock ball anchor, described locking overcoat is enclosed within outside described pillar column jacket, and described lock ball anchor is enclosed within outside described pillar inner prop, forms described annular lock chamber between described locking overcoat and lock ball anchor.
Further, described spacing structure is the spring flexible vertically being located between described locking overcoat and locking column.
Further, form two unblock rooms I that are adjacent and that separate by barrier sheet between described locking cover and locking column and unlock room II, described unblock room II is connected with solution latching connector, high pressure fluid enters described unblock room II by described solution latching connector and impels described barrier sheet to described unblock room I motion so that described locking cover moves axially.
Further, inner two ends, described unblock room II are equipped with sealing-ring.
Further, described unblock room II is closed by described locking cover, barrier sheet, locking column and the spacing collar that is fixed on described pillar column jacket, and described barrier sheet and described locking are overlapped one-body molded.
Further, two described annular groove I and two row's lockholes are at least set, often arranging described lockhole all evenly to arrange along the circumference in described annular lock chamber, the outside of described pillar inner prop is at least provided with nine described annular grooves II, and the interval of adjacent two described annular grooves II is identical with the interval of the adjacent two described lockholes of row.
Further, between described locking column with pillar column jacket, between described locking overcoat and lock ball anchor and described unblock room II is threaded with separating to be between latching connector.
The useful effect of the present invention: the self-locking of the pillar of the present invention and remote de-locking device, it is achieved that during pillar support remote auto locking and after rescue completes can remote de-locking, ensured the personnel safety of rescue personnel; Automatically form self-locking after pillar support, need not operate separately, unblock need not by other instruments, it is to increase the efficiency of rescue, for the valuable time has been striven in rescue; This apparatus structure is compact, light small and exquisite, for pillar alleviates weight, is convenient to rescue personnel and carries, further increase rescue efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of the self-locking state of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of the released state of the present invention;
Fig. 4 is the self-locking position partial schematic diagram of the present invention;
Fig. 5 be the present invention when self-locking by power schematic diagram;
Fig. 6 is the front schematic view of self-locking state during manual unlocking of the present invention;
The front schematic view of released state when Fig. 7 is manual unlocking of the present invention.
Embodiment
Fig. 1 is the structural representation of the self-locking state of the present invention, Fig. 3 is the structural representation of the released state of the present invention, as shown in the figure: the self-locking of the pillar of the present embodiment and remote de-locking device, comprise pillar inner prop 1 and pillar column jacket 2, also comprise locking cover, locking column 4 and lock ball 5, described locking cover is sheathed on described pillar inner prop 1 and pillar column jacket 2 outward and can be moved axially and be fixed by spacing structure, described locking is arranged with annular lock chamber 33 and is connected described pillar inner prop 1 and the lockhole 34 in annular lock chamber 33, one end of described locking column 4 is connected with described pillar column jacket 2, the other end stretches into described annular lock chamber 33 and is provided with annular groove I 41, the outside of described pillar inner prop 1 is provided with annular groove II 11, described lock ball 5 is located in described annular groove I 41 and is entered described annular groove II 11 by described lockhole 34, described annular groove I 41 comprises end face 41a that cross section is circular arc and cross section is the side of straight line, and described side comprises the retraction contact surface 41b near described pillar inner prop 1 retraction end and the support face 41c near described pillar inner prop 1 support end, the cross section straight line of side described in two is the tangent line at the circular arc two ends, cross section of described end face 41a, ultimate range between tangent line described in two is greater than the diameter of described lockhole 34 near described annular lock one end, chamber 33, when described lock ball 5 is fastened in described annular groove II 11 and is subject to the retraction force of described pillar inner prop 1 and described retraction contact surface 41b is formed extruding, the angle between the normal of retraction force and described retraction contact surface 41b is less than the self-locking angle of described lock ball 5, pillar is made up of pillar inner prop 1 and pillar column jacket 2, and wherein pillar inner prop 1 is enclosed within pillar column jacket 2 and can move axially support (i.e. left side motion in Fig. 1) and retraction (i.e. right side motion in Fig. 1), lock ball 5 is preferably the steel ball of high strength, self-locking refers to the retraction stoping pillar inner prop 1 but does not affect its support, unlocks and then refers to that pillar inner prop 1 can freely bounce back.
The switching of self-locking state and released state is having moved axially by locking cover, during self-locking state, limited location structure between locking cover and locking column 4, because locking column 4 is fixed on pillar column jacket 2, by spacing structure limitation locking cover, play the object of compact lock ball 5, annular groove II 11 outside pillar inner prop 1, its radius is consistent with the radius of lock ball 5, when being in Fig. 1 position, lower of the effect lock ball 5 that locking is enclosed within spacing structure is pressed in annular groove II 11, when pillar inner prop 1 bounces back, annular groove II 11 promotes lock ball 5 outwards to move, force-bearing situation is as shown in Figure 5, owing to the angle C between thrust F direction and the normal of retraction contact surface 41b is less than self-locking angle, therefore lock ball 5 can not move, pillar inner prop 1 can not bounce back, form self-locking, with reason, when pillar inner prop 1 support, owing to the angle (not shown) between thrust direction and the normal of retraction contact surface 41b is greater than self-locking angle, lock ball 5 moves in annular groove I 41, and depart from the track that pillar inner prop 1 moves, pillar inner prop 1 can freely stretch in the position of locking but can not bounce back as can be seen here, so pillar completes to automatically lock in support process, during released state, locking cover moves axially and drives lock ball 5 to move, and lock ball 5 departs from the retraction contact surface 41b of locking column 4, owing to pillar inner prop 1 is to the effect of lock ball 5 radial direction, lock ball 5 is outwards moved, departs from the motion track of pillar inner prop 1, finally realizes unlocking, the shape of annular groove I 41 directly affects self-locking and the unlocking function of this device, as shown in Figure 4, the cross section of annular groove I 41 is made up of three lines, is one section of circular arc and two ends tangent line thereof respectively, and the degree of depth of annular groove I 41 is when lock ball 5 enters the track that can ensure in groove that lock ball 5 departs from pillar inner prop 1 motion, angle A should be able to meet has enough thickness between retraction contact surface 41b and adjacent support face 41c, and when ensureing self-locking, annular groove I 41 can bear the pressure of lock ball 5, angle B be related to this device can the key point of self-locking and unblock smoothly, the angle D in included angle A and angle E complementary angle each other, included angle B and Fig. 5 each other complementary angle and decide the size of angle C, angle C must be less than self-locking angle, the actual value of self-locking angle is relevant by the stiction locking ball 5 size and contact and formed with lock ball 5, and those skilled in the art can calculate its numerical range according to theoretical calculation method.
In the present embodiment, described lockhole 34 is the tapered hole that outer imperial palace is little, and its diameter near described pillar inner prop 1 one end is less than the diameter of described lock ball 5; Herein, refer to the side of lockhole 34 near annular lock chamber 33 outward, inside refer to the side of lockhole 34 near pillar inner prop 1; Tapered hole and lock ball 5 shape adaptation degree height, effectively support can lock ball 5, strengthen self-locking effect, and when preventing from taking out pillar inner prop 1, lock ball 5 drops.
In the present embodiment, the cross section of described annular groove II 11 is circular arc, and described end face 41a is identical with the radius of described lock ball 5 with the arc radius of annular groove II 11; The arc length that the cross section circular arc arc length of annular groove II 11 stretches out lockhole 34 part with lock ball 5 is consistent, to form effective self-locking.
In the present embodiment, described locking cover comprises the locking overcoat 31 removably connected and lock ball anchor 32, described locking overcoat 31 is enclosed within outside described pillar column jacket 2, described lock ball anchor 32 is enclosed within outside described pillar inner prop 1, forms described annular lock chamber 33 between described locking overcoat 31 and lock ball anchor 32; Pressure suffered by lock ball 5 is bigger, it is easy to weares and teares, be out of shape and cause self-locking to be lost efficacy, and locking cover, for combining parts, is convenient to mount and dismount, to change lock ball 5 or other parts in time.
In the present embodiment, described spacing structure is the spring 6 flexible vertically being located between described locking overcoat 31 and locking column 4; Spring 6 is stage clip; Spring fitting groove 61 is formed between locking overcoat 31 and locking column 4; The elasticity of spring 6 is utilized to carry out position and lock cover, and compact lock ball 5.
In the present embodiment, form two unblock rooms I 71 that are adjacent and that separate by barrier sheet 35 between described locking cover and locking column 4 and unlock room II 72, described unblock room II 72 is connected with separates latching connector 8, high pressure fluid enters described unblock room II 72 by described solution latching connector 8 and impels described barrier sheet 35 to move to described unblock room I 71 so that described locking cover moves axially; High pressure fluid refers in particular to high pressure gas or highly pressurised liquid; The cumulative volume unlocking room I 71 and unblock room II 72 is certain, but is moved by drive barrier sheet 35 when locking cover is mobile, thus unblock room I 71 is changed with the volume unlocking room II 72 thereupon, and vice versa; Certainly, this device can also be simplified to the manual unlocking structure such as Fig. 6 and Fig. 7, and the resistance namely overcoming spacing structure by manpower manual moves locking cover.
In the present embodiment, inner two ends, described unblock room II 72 are equipped with sealing-ring 91; Owing to locking cover is removable, unlock to complete smoothly for ensureing to unlock the stopping property of room II 72, establishing sealing-ring 91 at unblock two ends, room II 72, namely the cavity that two sealing-rings 91 surround separates the container cavity of latching connector 8 displacement fluids, and the increase of this cavity volume can reach the movement of Long-distance Control locking cover.
In the present embodiment, described unblock room II 72 is enclosed by described locking cover, barrier sheet 35, locking column 4 and the spacing ring 92 that is fixed on described pillar column jacket 2 and is closed, and described barrier sheet 35 and described locking are overlapped one-body molded; Spacing ring 92 is for limiting the position of side sealing-ring 91, and another side sealing-ring 91 is undertaken spacing by barrier sheet 35; Spacing ring 92 is fixed by screw; Barrier sheet 35 is one-body molded with locking cover, is formed by locking cover indent, to strengthen the intensity of barrier sheet 35, is convenient to processing and manufacturing.
In the present embodiment, two described annular grooves I 41 and two row's lockholes 34 are set, often arrange described lockhole 34 all evenly to arrange along the circumference in described annular lock chamber 33, the outside of described pillar inner prop 1 is provided with nine described annular grooves II 11, and the interval of adjacent two described annular grooves II 11 is identical with the interval of the adjacent two described lockholes 34 of row; Annular groove I 41, lockhole 34 can realize the continuous locking to pillar with coordinating of annular groove II 11; Certainly, the concrete quantity of these parts can be selected according to practical situation.
In the present embodiment, between described locking column 4 and pillar column jacket 2, between described locking overcoat 31 and lock ball anchor 32 and described unblock room II 72 is threaded with separating to be between latching connector 8; Realizing removably connecting by arranging screw thread pair, it manufactures simple, connect reliable, easy to use, versatility is good.
What finally illustrate is, above embodiment is only in order to illustrate the technical scheme of the present invention and unrestricted, although with reference to better embodiment to invention has been detailed explanation, it will be understood by those within the art that, the technical scheme of the present invention can be modified or equivalent replacement, and not departing from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of the right of the present invention.
Claims (10)
1. the self-locking of a pillar and remote de-locking device, comprise pillar inner prop and pillar column jacket, it is characterized in that: also comprise locking cover, locking column and lock ball, outside described locking cover is sheathed on described pillar inner prop and pillar column jacket and can move axially and be fixed by spacing structure, described locking is arranged with annular lock chamber and is connected described pillar inner prop and the lockhole in annular lock chamber, one end of described locking column is connected with described pillar column jacket, the other end stretches into described annular lock chamber and is provided with annular groove I, the outside of described pillar inner prop is provided with annular groove II, described lock ball is located in described annular groove I and is entered described annular groove II by described lockhole, described annular groove I comprises end face that cross section is circular arc and cross section is the side of straight line, and described side comprises the retraction contact surface near described pillar inner prop retraction end and the support face near described pillar inner prop support end, the cross section straight line of side described in two is the tangent line at the circular arc two ends, cross section of described end face, ultimate range between tangent line described in two is greater than the diameter of described lockhole near described annular lock one end, chamber, when described lock ball is fastened in described annular groove II and is subject to the retraction force of described pillar inner prop and described retraction contact surface is formed extruding, the angle between the normal of retraction force and described retraction contact surface is less than the self-locking angle of described lock ball, at least arranging two described annular groove I and two row's lockholes, often arrange described lockhole and all evenly arrange along the circumference in described annular lock chamber, the interval of adjacent two described annular grooves II is identical with the interval of the adjacent two described lockholes of row.
2. the self-locking of pillar according to claim 1 and remote de-locking device, it is characterised in that: described lockhole is the tapered hole that outer imperial palace is little, and its diameter near described pillar inner prop one end is less than the diameter of described lock ball.
3. the self-locking of pillar according to claim 2 and remote de-locking device, it is characterised in that: the cross section of described annular groove II is circular arc, and described end face is identical with the radius of described lock ball with the arc radius of annular groove II.
4. the self-locking of pillar according to claim 3 and remote de-locking device, it is characterized in that: described locking cover comprises the locking overcoat removably connected and lock ball anchor, described locking overcoat is enclosed within outside described pillar column jacket, described lock ball anchor is enclosed within outside described pillar inner prop, forms described annular lock chamber between described locking overcoat and lock ball anchor.
5. the self-locking of pillar according to claim 4 and remote de-locking device, it is characterised in that: described spacing structure is the spring flexible vertically being located between described locking overcoat and locking column.
6. the self-locking of pillar according to claim 5 and remote de-locking device, it is characterized in that: form two unblock rooms I that are adjacent and that separate by barrier sheet between described locking cover and locking column and unlock room II, described unblock room II is connected with solution latching connector, high pressure fluid enters described unblock room II by described solution latching connector and impels described barrier sheet to described unblock room I motion so that described locking cover moves axially.
7. the self-locking of pillar according to claim 6 and remote de-locking device, it is characterised in that: inner two ends, described unblock room II are equipped with sealing-ring.
8. the self-locking of pillar according to claim 7 and remote de-locking device, it is characterized in that: described unblock room II is closed by described locking cover, barrier sheet, locking column and the spacing collar that is fixed on described pillar column jacket, and described barrier sheet and described locking are overlapped one-body molded.
9. the self-locking of pillar according to claim 8 and remote de-locking device, it is characterised in that: the outside of described pillar inner prop is at least provided with nine described annular grooves II.
10. the self-locking of pillar according to claim 9 and remote de-locking device, it is characterised in that: between described locking column with pillar column jacket, between described locking overcoat and lock ball anchor and described unblock room II is threaded with separating to be between latching connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074774.9A CN103818842B (en) | 2014-03-03 | 2014-03-03 | The self-locking of pillar and remote de-locking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074774.9A CN103818842B (en) | 2014-03-03 | 2014-03-03 | The self-locking of pillar and remote de-locking device |
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| Publication Number | Publication Date |
|---|---|
| CN103818842A CN103818842A (en) | 2014-05-28 |
| CN103818842B true CN103818842B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410074774.9A Active CN103818842B (en) | 2014-03-03 | 2014-03-03 | The self-locking of pillar and remote de-locking device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593239A (en) * | 1994-04-28 | 1997-01-14 | Tracor, Inc. | Extendable support pole |
| EP1069261A1 (en) * | 1999-07-13 | 2001-01-17 | Paratech, Inc. | Adjustable rescue strut |
| CN2692469Y (en) * | 2004-04-01 | 2005-04-13 | 刘建华 | Structure improved safety support |
| CN102844523A (en) * | 2010-02-19 | 2012-12-26 | 科学与工业研究会 | A device for roof support of underground mine/tunnel |
| CN203699793U (en) * | 2014-03-03 | 2014-07-09 | 中煤科工集团重庆研究院有限公司 | Strut self-locking and remote-unlocking device |
-
2014
- 2014-03-03 CN CN201410074774.9A patent/CN103818842B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593239A (en) * | 1994-04-28 | 1997-01-14 | Tracor, Inc. | Extendable support pole |
| EP1069261A1 (en) * | 1999-07-13 | 2001-01-17 | Paratech, Inc. | Adjustable rescue strut |
| CN2692469Y (en) * | 2004-04-01 | 2005-04-13 | 刘建华 | Structure improved safety support |
| CN102844523A (en) * | 2010-02-19 | 2012-12-26 | 科学与工业研究会 | A device for roof support of underground mine/tunnel |
| CN203699793U (en) * | 2014-03-03 | 2014-07-09 | 中煤科工集团重庆研究院有限公司 | Strut self-locking and remote-unlocking device |
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| Publication number | Publication date |
|---|---|
| CN103818842A (en) | 2014-05-28 |
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