CN102951572A - Protection device of horizontal suspender - Google Patents
Protection device of horizontal suspender Download PDFInfo
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- CN102951572A CN102951572A CN2012105143695A CN201210514369A CN102951572A CN 102951572 A CN102951572 A CN 102951572A CN 2012105143695 A CN2012105143695 A CN 2012105143695A CN 201210514369 A CN201210514369 A CN 201210514369A CN 102951572 A CN102951572 A CN 102951572A
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- ratchet
- side board
- anchor shaft
- steel wire
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Abstract
The invention discloses a protection device of a horizontal suspender. The protection device comprises a bottom board, a left side board, a right side board, a supporting post, a pawl, a ratchet wheel, a pawl fixing shaft, a ratchet wheel fixing shaft and a steel wire rope disk, wherein the left side board and the right side board are parallelly and oppositely arranged, the pawl and the ratchet wheel are mutually matched, two ends of the supporting post are respectively, vertically and fixedly arranged on the left side board and the right side board, two ends of the pawl fixing shaft and the ratchet wheel fixing shaft are respectively in rotating shaft connection with the left side board and the right side board, the pawl fixing shaft is fixedly connected with the pawl by penetrating through the center part of the pawl, the pawl is connected with one end of a reset spring, the other end of the reset spring is connected to the left side board, the ratchet wheel fixing shaft is respectively fixed with the ratchet wheel and the steel wire rope disk by sequentially penetrating through a center hole of the ratchet wheel and the center part of the steel wire rope disk, and the bottom board is provided with a steel wire rope penetrating hole. The protection device disclosed by the invention has the advantages that the structure is simple, the design is reasonable, stage lamps can be effectively prevented from dropping downwards when the steel wire rope of the horizontal suspender is broken off, and difficult problems which cannot be solved in the past are solved.
Description
Technical field
The present invention relates to a kind of auxiliary device of back(ing) bar, particularly relate to a kind of back(ing) bar fender guard.
Background technology
Traditional back(ing) bar; do not possess the actv. fender guard; particularly in the light of stage industry; back(ing) bar is widely used in hanging the high stage lamp of value; once the back(ing) bar wire cable rupture is pounded; relevant stage lamp just can fall, and will people's life or property be damaged or damage like this.Good settling mode is not yet arranged at present.
Summary of the invention
Based on this, for the problems referred to above, the present invention proposes a kind of back(ing) bar fender guard, behind the back(ing) bar wire cable rupture, can in time stop stage lamp down to fall.
Technical scheme of the present invention is: a kind of back(ing) bar fender guard; comprise base plate; the parallel left side board that is oppositely arranged and right side board; pillar stiffener; the ratchet that matches and ratchet; the ratchet anchor shaft; ratchet anchor shaft and steel wire disk; the two ends of described pillar stiffener vertically are fixed in respectively on left side board and the right side board; described ratchet anchor shaft; the two ends of described ratchet anchor shaft respectively rotating shaft are connected on left side board and the right side board; captive joint with described ratchet in the center that described ratchet anchor shaft passes described ratchet; be connected with an end of retracing spring on the described ratchet; the other end of this retracing spring is connected on the left side board; described ratchet anchor shaft passes the centre hole of ratchet successively and the center of steel wire disk is fixed with ratchet and steel wire disk respectively, and described base plate is provided with steel rope and penetrates the hole.
The steel rope that twines on the steel wire disk and the steel rope of back(ing) bar are connected to respectively on the stage lamp; when the steel rope fracture of back(ing) bar; steel rope on stage lamp and the back(ing) bar fender guard links together; just can spur the steel rope of back(ing) bar fender guard this moment; steel rope drives steel wire disk and rotates; because steel wire disk and ratchet all are fixed on the ratchet anchor shaft; therefore steel wire disk drives the rotation of ratchet anchor shaft; the ratchet anchor shaft drives ratchet and rotates; ratchet and ratchet cooperatively interact; when ratchet is followed the ratchet anchor shaft when rotating, ratchet is followed ratchet and is rotated the resistance that is subject to retracing spring after the very little angle.Making ratchet produce resistance stops ratchet to rotate, this moment, the ratchet anchor shaft stopped operating, steel wire disk is stopped operating, thereby the assurance steel rope is not followed stage lamp and is dropped together, and stage lamp is connected on the steel rope, principle can stop stage lamp to fall downwards thus, thus the equal safety of bondsman's life and property.
In a preferred embodiment, be provided with negative thread in the centre hole of described ratchet, described ratchet anchor shaft is provided with the outside thread that matches with ratchet centre hole negative thread.Purpose is to guarantee that ratchet and ratchet anchor shaft can be for convenience detach.
In a preferred embodiment; this back(ing) bar fender guard also comprises constant force spring and the constant force cheese of being located on the ratchet anchor shaft; this constant force cheese is between described ratchet and described steel wire disk, and an end of described constant force spring connects described constant force cheese, and the other end connects described pillar stiffener.Purpose is that the contraction of constant force spring itself being arranged or draw high provides a pulling force, guarantees the normal folding and unfolding steel rope of steel wire disk by this pulling force when back(ing) bar fender guard normal hoisting or decline.
In a preferred embodiment, described strut bar level is located at the top of described left side board and right side board.Purpose is effective connection of being convenient to constant force spring.
In a preferred embodiment, be provided with damping spring between described ratchet and the described constant force cheese, this damping spring is placed on the described ratchet anchor shaft, and the one end connects described ratchet, and the other end connects described constant force cheese.When back(ing) bar when promoting or putting down; if meet accident; wire cable rupture on the back(ing) bar; steel rope on the back(ing) bar and the application force between the steel rope on the fender guard and antagonistic force will disappear so; this moment, action of reset spring can produce a pulling force between ratchet; past drop-down ratchet; until ratchet and pawl closely is buckled together mutually; this moment, ratchet maintained static; and ratchet because and the ratchet anchor shaft between be to be threaded connection; so ratchet is the squeezed air-damping spring always; because damping spring provides a positive pressure to the constant force cheese; when positive pressure was equal with the back(ing) bar own wt, this moment, stage lamp stopped to continue down to drop, thereby played the effect of protection.
In a preferred embodiment, described steel wire disk center is provided with the centre hole that passes for described ratchet anchor shaft, the centre hole of described steel wire disk and described ratchet anchor shaft surface are provided with the keyway that matches, and the centre hole of described steel wire disk is captiveed joint by the key of being located in the keyway with described ratchet anchor shaft.Purpose is to guarantee can firmly to captive joint between steel wire disk and the ratchet anchor shaft.
The invention has the beneficial effects as follows: simple in structure, reasonable in design, can guarantee effectively that the steel rope when back(ing) bar breaks when falling, in time stop stage lamp down to fall, solved an in the past insurmountable difficult problem.
Description of drawings
Fig. 1 is the three-dimensional structure diagram of the described back(ing) bar fender guard of the embodiment of the invention;
Fig. 2 is the lateral plan of the described back(ing) bar fender guard of the embodiment of the invention;
Fig. 3 is the cutaway view of the described back(ing) bar fender guard of the embodiment of the invention;
Description of reference numerals:
The 101-base plate, 102-left side board, 103-right side board, 104-pillar stiffener, 105-ratchet, the 106-ratchet, 107-ratchet anchor shaft, 108-ratchet anchor shaft, 109-steel wire disk, 110-retracing spring, the 111-steel rope penetrates the hole, 112-constant force spring, 113-constant force cheese, 114-damping spring.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Embodiment:
Arrive shown in Figure 3 such as Fig. 1; a kind of back(ing) bar fender guard comprises base plate 101, the parallel left side board that is oppositely arranged 102 and right side board 103, pillar stiffener 104, the ratchet 105 that matches and ratchet 106, ratchet anchor shaft 107, ratchet anchor shaft 108 and steel wire disk 109.The two ends of described pillar stiffener 104 vertically are fixed in respectively on left side board 102 and the right side board 103, and the two ends of described ratchet anchor shaft 107, described ratchet anchor shaft 108 respectively rotating shaft are connected on left side board 102 and the right side board 103.Captiveing joint with described ratchet 105 in the center that described ratchet anchor shaft 107 passes described ratchet 105, is connected with an end of retracing spring 110 on the described ratchet 105, and the other end of this retracing spring 110 is connected on the left side board 102.Described ratchet anchor shaft 108 passes the centre hole of ratchet 106 successively and the center of steel wire disk 109 is fixed with ratchet 106 and steel wire disk 109 respectively, and described base plate 101 is provided with steel rope and penetrates hole 111.
In the present embodiment, be provided with negative thread in the centre hole of described ratchet 106, described ratchet anchor shaft 108 is provided with the outside thread that matches with ratchet 106 centre hole negative threads.Purpose is to guarantee that ratchet 106 and ratchet anchor shaft 108 can be for convenience detach.
In the present embodiment; this back(ing) bar fender guard also comprises constant force spring 112 and the constant force cheese 113 of being located on the ratchet anchor shaft 108; this constant force cheese 113 is between described ratchet 106 and described steel wire disk 109; one end of described constant force spring 112 connects described constant force cheese 113, and the other end connects described pillar stiffener 104.Purpose is at back(ing) bar fender guard normal hoisting or when descending, and the contraction of constant force spring 112 itself being arranged or draw high provides a pulling force, guarantees steel wire disk 109 normal folding and unfolding steel ropes by this pulling force.
In the present embodiment, described strut bar level is located at the top of described left side board 102 and right side board 103.Purpose is effective connection of being convenient to constant force spring 112.
In the present embodiment, be provided with damping spring 114 between described ratchet 106 and the described constant force cheese 113, this damping spring 114 is placed on the described ratchet anchor shaft 108, and the one end connects described ratchet 106, and the other end connects described constant force cheese 113.When back(ing) bar when promoting or putting down; if meet accident; wire cable rupture on the back(ing) bar; steel rope on the back(ing) bar and the application force between the steel rope on the fender guard and antagonistic force will disappear so; retracing spring 110 acted between the ratchet 105 and can produce a pulling force this moment; past drop-down ratchet 105; until ratchet 106 and ratchet 105 closely are buckled together mutually; this moment, ratchet 105 maintained static; and ratchet 106 because and be to be threaded connection between the ratchet anchor shaft 108; so ratchet 106 is squeezed air-damping spring 114 always; because damping spring 114 provides a positive pressure to constant force cheese 113; when positive pressure was equal with the back(ing) bar own wt, this moment, stage lamp stopped to continue down to drop, thereby played the effect of protection.
In the present embodiment, described steel wire disk 109 centers are provided with the centre hole that passes for described ratchet anchor shaft 108, the centre hole of described steel wire disk 109 and described ratchet anchor shaft 108 surfaces are provided with the keyway that matches, and the centre hole of described steel wire disk 109 is captiveed joint by the key of being located in the keyway with described ratchet anchor shaft 108.Purpose is to guarantee can firmly to captive joint between steel wire disk 109 and the ratchet anchor shaft 108.
The principle of work of the described on even keel suspension rod of present embodiment fender guard is as follows:
The steel rope that twines on the steel wire disk 109 and the steel rope of back(ing) bar are connected to respectively on the stage lamp; when the steel rope fracture of back(ing) bar; steel rope on stage lamp and the back(ing) bar fender guard links together; just can spur the steel rope of back(ing) bar fender guard this moment; steel rope drives steel wire disk 109 and rotates; because steel wire disk 109 and ratchet 106 all are fixed on the ratchet anchor shaft 108; therefore steel wire disk 109 drives 108 rotations of ratchet anchor shaft; ratchet anchor shaft 108 drives ratchet 106 and rotates; ratchet 106 cooperatively interacts with ratchet 105; when ratchet 106 is followed ratchet anchor shaft 108 when rotating, ratchet 105 is followed ratchet 106 and is rotated the resistance that is subject to retracing spring 110 after the very little angle.Making ratchet 105 produce resistance stops ratchet 106 to rotate, ratchet anchor shaft 108 stops operating at this moment, steel wire disk 109 is stopped operating, thereby the assurance steel rope is not followed stage lamp and is dropped together, and stage lamp is connected on the steel rope, principle can stop stage lamp to fall downwards thus, thus the equal safety of bondsman's life and property.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. back(ing) bar fender guard; it is characterized in that; comprise base plate; the parallel left side board that is oppositely arranged and right side board; pillar stiffener; the ratchet that matches and ratchet; the ratchet anchor shaft; ratchet anchor shaft and steel wire disk; the two ends of described pillar stiffener vertically are fixed in respectively on left side board and the right side board; described ratchet anchor shaft; the two ends of described ratchet anchor shaft respectively rotating shaft are connected on left side board and the right side board; captive joint with described ratchet in the center that described ratchet anchor shaft passes described ratchet; be connected with an end of retracing spring on the described ratchet; the other end of this retracing spring is connected on the left side board; described ratchet anchor shaft passes the centre hole of ratchet successively and the center of steel wire disk is fixed with ratchet and steel wire disk respectively, and described base plate is provided with steel rope and penetrates the hole.
2. back(ing) bar fender guard according to claim 1 is characterized in that, is provided with negative thread in the centre hole of described ratchet, and described ratchet anchor shaft is provided with the outside thread that matches with ratchet centre hole negative thread.
3. back(ing) bar fender guard according to claim 1 and 2; it is characterized in that; this back(ing) bar fender guard also comprises constant force spring and the constant force cheese of being located on the ratchet anchor shaft; this constant force cheese is between described ratchet and described steel wire disk; one end of described constant force spring connects described constant force cheese, and the other end connects described pillar stiffener.
4. back(ing) bar fender guard according to claim 3 is characterized in that, described strut bar level is located at the top of described left side board and right side board.
5. back(ing) bar fender guard according to claim 3; it is characterized in that be provided with damping spring between described ratchet and the described constant force cheese, this damping spring is placed on the described ratchet anchor shaft; the one end connects described ratchet, and the other end connects described constant force cheese.
6. back(ing) bar fender guard according to claim 1; it is characterized in that; described steel wire disk center is provided with the centre hole that passes for described ratchet anchor shaft; the centre hole of described steel wire disk and described ratchet anchor shaft surface are provided with the keyway that matches, and the centre hole of described steel wire disk is captiveed joint by the key of being located in the keyway with described ratchet anchor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514369.5A CN102951572B (en) | 2012-12-04 | 2012-12-04 | Protection device of horizontal suspender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514369.5A CN102951572B (en) | 2012-12-04 | 2012-12-04 | Protection device of horizontal suspender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102951572A true CN102951572A (en) | 2013-03-06 |
| CN102951572B CN102951572B (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210514369.5A Active CN102951572B (en) | 2012-12-04 | 2012-12-04 | Protection device of horizontal suspender |
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| Country | Link |
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| CN (1) | CN102951572B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB543356A (en) * | 1939-05-19 | 1942-02-23 | Bernard Joseph Thorpe | Improvements in or relating to mechanisms for hoists, windlasses, tensioning machines, torsion machines, lifting appliances and the like |
| CN2325371Y (en) * | 1998-02-18 | 1999-06-23 | 杭州电机总厂 | Electric hoist safety brake |
| JP2002284485A (en) * | 2001-03-27 | 2002-10-03 | Green Service:Kk | Winch for expandable column and projector |
| CN202116227U (en) * | 2011-06-28 | 2012-01-18 | 太原重工股份有限公司 | Luffing drum stop device |
| CN202558517U (en) * | 2012-03-20 | 2012-11-28 | 重庆建工第二建设有限公司 | Wheel with brake device |
| CN203112406U (en) * | 2012-12-04 | 2013-08-07 | 广东华晨影视舞台专业工程有限公司 | Horizontal suspension bar protective device |
-
2012
- 2012-12-04 CN CN201210514369.5A patent/CN102951572B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB543356A (en) * | 1939-05-19 | 1942-02-23 | Bernard Joseph Thorpe | Improvements in or relating to mechanisms for hoists, windlasses, tensioning machines, torsion machines, lifting appliances and the like |
| CN2325371Y (en) * | 1998-02-18 | 1999-06-23 | 杭州电机总厂 | Electric hoist safety brake |
| JP2002284485A (en) * | 2001-03-27 | 2002-10-03 | Green Service:Kk | Winch for expandable column and projector |
| CN202116227U (en) * | 2011-06-28 | 2012-01-18 | 太原重工股份有限公司 | Luffing drum stop device |
| CN202558517U (en) * | 2012-03-20 | 2012-11-28 | 重庆建工第二建设有限公司 | Wheel with brake device |
| CN203112406U (en) * | 2012-12-04 | 2013-08-07 | 广东华晨影视舞台专业工程有限公司 | Horizontal suspension bar protective device |
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| Publication number | Publication date |
|---|---|
| CN102951572B (en) | 2015-08-26 |
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