CN2844386Y - Rope-cut safety device - Google Patents
Rope-cut safety device Download PDFInfo
- Publication number
- CN2844386Y CN2844386Y CN 200520142878 CN200520142878U CN2844386Y CN 2844386 Y CN2844386 Y CN 2844386Y CN 200520142878 CN200520142878 CN 200520142878 CN 200520142878 U CN200520142878 U CN 200520142878U CN 2844386 Y CN2844386 Y CN 2844386Y
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- CN
- China
- Prior art keywords
- bearing pin
- axle sleeve
- pin shaft
- shaft
- shift fork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a rope-cut protecting device, and a shaft sleeve with openings on both ends is arranged on a base plate, and the inner of the shaft sleeve is glidingly matched with a pin shaft of which the one side part forms a step shape with a decrescent shaft diameter. The pin shaft with a small shaft diameter is sheathed with a spring which is clamped between the step point and the port of the shaft sleeve, and the middle part of the shaft sleeve and the middle part of the pin shaft are separately provided with corresponding open pores and are matched with shift fork supporting frames, wherein the shift fork shafts of which are rotationally connected with turning points in the middle of L-shaped shift forks. The lower ends of the shift forks are inserted and connected with the pin shaft by entering the inner of the pin shaft the shaft sleeve and the open pores of the pin shaft, and the upper ends of the shift forks are provided with fixed parts connected with connecting steel cables or chains. A plurality of pin shaft holes where the pin shaft can be penetrated through are arranged on the inner side face of a door frame on one side of a door. When the steel cables or the chains are snapped off, the pin shaft can be bounced out under the action of the spring to insert into the pin shaft holes on the inner side face of the door frame in order to lock the door without falling down, avoiding the occurrence of accidents and ensuring personal safety and equipment safety.
Description
Technical field
The utility model relates to a kind of cage dog, belongs to field of machining.
Background technology
The object of present many bulk storage plants, garage and other various liftings, for convenience, laborsaving, flexible, as, overhead door or folding door have all been installed the electric transmissio mechanism by Electric Machine Control wire rope or chain.But in actual use because safeguard, maintenance is improper, the gate can produce tenesmus when wire rope or chain are broken, and institute's person that causes and equipment breakdown during tenesmus, therefore cage dog must be installed.
Summary of the invention
The purpose of this utility model is to provide a kind of cage dog, and this cage dog is simple in structure, can carry out safe handling early after wire rope or chain are broken, and safety is good, can guarantee the safety of the person and equipment.
For achieving the above object, the utility model is taked following design scheme:
A kind of cage dog, it is the axle sleeve that on seat board, is provided with both ends open, be sliding combined with bearing pin in the axle sleeve, one sidepiece of bearing pin be the diameter of axle diminish step-like, and on the bearing pin of small axle diameter, be with spring, this Spring Card is between the port of step place and axle sleeve, be respectively equipped with corresponding perforate at the middle part of axle sleeve and the middle part of bearing pin, and cooperation is provided with yoke bracket, this yoke bracket is positioned at the top of axle sleeve, be fixed with declutch shift shaft on the yoke bracket, the corner, middle part of declutch shift shaft and L shaped shift fork is rotationally connected, the perforate of the lower end of shift fork by axle sleeve and bearing pin enters in the bearing pin body and pegs graft with bearing pin, and the upper end of shift fork is provided with and the fixed part that is connected the connection of wire rope or chain, and is provided with the pin shaft hole that several can make bearing pin penetrate on the medial surface of the doorframe of a side of door.
Control shift fork when operating principle of the present utility model is wire rope or chain tension makes bearing pin compression spring; When wire rope or chain are broken or are become flexible, bearing pin is ejected, insert the pin shaft hole on the medial surface of doorframe, thereby lock door and do not make its tenesmus is avoided having an accident.
In the utility model, described yoke bracket is mounted on the seat board.This structure is applicable to overhead door.
In the utility model, described yoke bracket is to be sleeved on the axle sleeve, and axle sleeve and yoke bracket are for being rotationally connected, and the perforate at axle sleeve middle part is for becoming the circular-arc perforate of 90 degree vertically.This structure is applicable to folding door.
In the utility model, the end of the opposite side of described bearing pin is a wedge.
In the utility model, the other end of described axle sleeve is equipped with bearing and bearing support.
In the utility model, when wire rope or chain disconnection, bearing pin ejects rapidly under the effect of spring, and in the hole on the insertion doorframe, for the ease of inserting, the length of described bearing pin preferably is longer than the length of axle sleeve, and at least one end exposes outside axle sleeve in the two ends of bearing pin.
In the utility model, in the wedge end of described bearing pin constitute two inclined-planes of wedge, wherein, an inclined-plane becomes the wedge angle with the vertical line of horizontal plane be 60 degree～85 degree, another inclined-plane becomes the wedge angle with the vertical line of horizontal plane be 0 to spend～50 and spend.
In being applicable to the structure of overhead door, described seat board is provided with backplate, and this backplate is positioned at the top of shift fork.
The utility model has the advantages that: cage dog of the present utility model is simple in structure, when wire rope or chain are broken, bearing pin is ejected, pin shaft hole on the medial surface of insertion doorframe, thereby lock door and do not make its tenesmus, avoid having an accident, safety is good, can guarantee the safety of the person and equipment.Also have automatic spring lock and tamper-resistant function.
Description of drawings
Fig. 1 is the structural representation of the cage dog on the overhead door of embodiment 1
Fig. 2 is the lateral view of Fig. 1
Fig. 3 is the structural representation that is provided with the bearing pin of rectangle blind hole
Fig. 4 is the vertical view of Fig. 3
Fig. 5 is the structural representation of the cage dog on the folding door of embodiment 2
Fig. 6 is the lateral view of Fig. 5
Fig. 7 is the structural representation that is provided with the bearing pin of through hole
Fig. 8 is the vertical view of Fig. 7
Fig. 9 is the structural representation with axle sleeve of the circular-arc perforate of 90 degree
Figure 10 is the part sectioned view of Fig. 9
Figure 11 is the structural representation with yoke bracket of O shape cover
Figure 12 is the lateral view of Figure 11
The specific embodiment
Embodiment 1-is installed in the cage dog on the overhead door.
Cage dog of the present utility model as shown in Figure 1 and Figure 2, at overhead door side end face installation seat plate 1, the upper end of seat board 1 can be provided with a backplate 16 (as shown in Figure 1) by 4 bolts 13; Be equipped with one at the middle part of seat board 1 and can adopt the yoke bracket of being fixed by two bolts 15 14 (as shown in Figure 2), a declutch shift shaft 10 and shift fork 2 are installed on yoke bracket 14, the corner, middle part and the declutch shift shaft 10 of L shaped shift fork 2 are rotationally connected; Be provided with the axle sleeve 5 of a both ends open in the bottom of declutch shift shaft 10 and shift fork 2, be sliding combined with bearing pin 4 in the axle sleeve 5, one sidepiece of bearing pin 4 (right side in Fig. 1) for the diameter of axle diminish step-like, and on the bearing pin 4 of small axle diameter, being with spring 3, this spring 3 is stuck between the port of step place and axle sleeve 5; On the sidewall at the middle part of axle sleeve 5, be provided with perforate, middle part at bearing pin 4 also is provided with corresponding perforate, the perforate of the lower end of shift fork 2 by axle sleeve 5 and bearing pin 4 enters in the body of bearing pin 4 and pegs graft with bearing pin 4, the upper end of shift fork is provided with and is connected the connecting portion (also being connecting hole) 23 that wire rope or chain connect, connect wire rope or chain, under normal operating condition, wire rope or chain are in tension, it is the upper end (connecting portion 20 that promptly connects wire rope or chain) of wire rope or chain tension shift fork 2, make bearing pin 4 to a side shifting (in Fig. 1, moving right) and compress spring 3, under normal operating condition, bearing pin 4 is in the state of compression spring 3 all the time.
The groove bottom of the doorframe of being made by U-steel 12 is provided with the hole 11 that several can make bearing pin 4 penetrate.Its hole 11 is distributed in last, the middle part of doorframe 12, and hole center to center distance is in 30 millimeter.
Being equipped with at the other end (at the left end of Fig. 1 bottom bracket axle 5) of axle sleeve 5 is bearing 8, bearing support 9, and at card between axle sleeve 5 and the bearing 8 shaft block ring 7 is arranged, card is porose with back-up ring 6 between bearing 8 and bearing support 9.Bearing support 9 can adopt cylindrical or spherical; at axle sleeve 5, bearing pin 4 along with overhead door moves up and down; in order to prevent that axle sleeve 5, bearing pin 4 from rubbing impaired with the ledge face of the doorframe 12 that U-steel is made; so at this end bearing 8 and cylindrical or ball bearing seat 9; by ledge face sliding friction cylindrical or ball bearing seat 9 and doorframe 12, protection axle sleeve 5, bearing pin 4.
Bearing pin 4 is as Fig. 3, Fig. 4, Fig. 7, shown in Figure 8, and the perforate at the middle part of bearing pin 4 can be rectangle (minor face is circular-arc) blind hole 20 (as shown in Figure 3, Figure 4) or through hole 21 (as Fig. 7, Fig. 8); Wedge is made in the other end of bearing pin 4 (left part in Fig. 1), constitutes two inclined-planes of wedge, and wherein, an inclined-plane becomes wedge angle 17 with the vertical line of horizontal plane be 60 degree～85 degree, and another inclined-plane becomes wedge angle 18 with the vertical line of horizontal plane be 0 degree～50 degree.
When wire rope that spurs shift fork 2 upper ends or chain disconnection, bearing pin 4 ejects rapidly under the effect of spring 3, and in the hole 11 on the groove bottom of insertion doorframe 12, thereby can stop the student to fall to reaching the purpose of insurance.When the gate is in closed condition, on the groove bottom of bearing pin 4 pairing doorframes 12, make a call to a hole again, close when the gate and to fall earthward, when the wire rope of pulling shift fork 2 upper ends or chain are in relaxed state, at this moment bearing pin 4 ejects rapidly under the effect of spring 3 and enters in this hole, thereby the automatic spring lock in gate reaches tamper-resistant function.
Embodiment 2-is installed in the cage dog on the folding door.
As Fig. 5, shown in Figure 6, this embodiment 2 is that with the place of embodiment 1 main difference yoke bracket 24 is not mounted on the seat board 1, but is sleeved on the axle sleeve 5, and axle sleeve 5 is rotationally connected with yoke bracket 24.Axle sleeve 5 is as Fig. 9, shown in Figure 10, suit yoke bracket 24 on the outer wall of this axle sleeve 5, and the middle part rectangle perforate of axle sleeve 5 made one the 90 circular-arc perforate 25 (as shown in figure 10) of degree vertically; Yoke bracket 24 is as Figure 11, shown in Figure 12, yoke bracket 24 has an O shape cover can be sleeved on the outer wall of axle sleeve 5, yoke bracket 24 also has the support both arms, and the axis hole and the declutch shift shaft that are respectively equipped with correspondence are rotationally connected, when folding door is opened or is closed, be contained in the seat board 1 of folding door side end face and axle sleeve 5 and can open or close (even rise or fall) with door and rotate, but since axle sleeve 5 and yoke bracket 24 for being rotatably assorted, so axle sleeve 5 rotates and can not have influence on yoke bracket 24 and shift fork 2.This embodiment 2 also is in a different place with embodiment 1, backplate 16 is not installed on the seat board 1.With the exception of this, other structure is all identical with embodiment 1 with operating principle.
Claims (8)
1, a kind of cage dog, it is characterized in that: be the axle sleeve that on seat board, is provided with both ends open, be sliding combined with bearing pin in the axle sleeve, one sidepiece of bearing pin be the diameter of axle diminish step-like, and on the bearing pin of small axle diameter, be with spring, this Spring Card is between the port of step place and axle sleeve, be respectively equipped with corresponding perforate at the middle part of axle sleeve and the middle part of bearing pin, and cooperation is provided with yoke bracket, this yoke bracket is positioned at the top of axle sleeve, be fixed with declutch shift shaft on the yoke bracket, the corner, middle part of declutch shift shaft and L shaped shift fork is rotationally connected, the perforate of the lower end of shift fork by axle sleeve and bearing pin enters in the bearing pin body and pegs graft with bearing pin, and the upper end of shift fork is provided with and the fixed part that is connected the connection of wire rope or chain, and is provided with the pin shaft hole that several can make bearing pin penetrate on the medial surface of the doorframe of a side of door.
2, cage dog according to claim 1 is characterized in that: described yoke bracket is mounted on the seat board.
3, cage dog according to claim 1 is characterized in that: described yoke bracket is to be sleeved on the axle sleeve, and axle sleeve and yoke bracket are for being rotationally connected, and the perforate at axle sleeve middle part is for becoming the circular-arc perforate of 90 degree vertically.
4, according to claim 2 or 3 described cage dogs, it is characterized in that: the end of the opposite side of described bearing pin is a wedge.
5, cage dog according to claim 4 is characterized in that: the other end of described axle sleeve is equipped with bearing and bearing support.
6, cage dog according to claim 5 is characterized in that: the length of described bearing pin is longer than the length of axle sleeve, and at least one end exposes outside axle sleeve in the two ends of bearing pin.
7, cage dog according to claim 6, it is characterized in that: in the wedge end of described bearing pin constitute two inclined-planes of wedge, wherein, one inclined-plane becomes the wedge angle with the vertical line of horizontal plane be 60 degree～85 degree, and another inclined-plane becomes the wedge angle with the vertical line of horizontal plane be 0 degree～50 degree.
8, cage dog according to claim 2 is characterized in that: described seat board is provided with backplate, and this backplate is positioned at the top of shift fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142878 CN2844386Y (en) | 2005-12-09 | 2005-12-09 | Rope-cut safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142878 CN2844386Y (en) | 2005-12-09 | 2005-12-09 | Rope-cut safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2844386Y true CN2844386Y (en) | 2006-12-06 |
Family
ID=37486338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142878 Expired - Fee Related CN2844386Y (en) | 2005-12-09 | 2005-12-09 | Rope-cut safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2844386Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303802A (en) * | 2011-08-04 | 2012-01-04 | 中国兵器工业第二○二研究所 | Broken rope protective device of upright lift gate |
| CN102587820A (en) * | 2012-03-23 | 2012-07-18 | 江苏金秋竹集团有限公司 | Anti-falling device |
| CN103104185A (en) * | 2013-01-23 | 2013-05-15 | 漳州市金安机电有限公司 | Door rolling machine broken chain prevention tight-braking device |
-
2005
- 2005-12-09 CN CN 200520142878 patent/CN2844386Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303802A (en) * | 2011-08-04 | 2012-01-04 | 中国兵器工业第二○二研究所 | Broken rope protective device of upright lift gate |
| CN102303802B (en) * | 2011-08-04 | 2013-01-09 | 中国兵器工业第二0二研究所 | Broken rope protective device of upright lift gate |
| CN102587820A (en) * | 2012-03-23 | 2012-07-18 | 江苏金秋竹集团有限公司 | Anti-falling device |
| CN103104185A (en) * | 2013-01-23 | 2013-05-15 | 漳州市金安机电有限公司 | Door rolling machine broken chain prevention tight-braking device |
| CN103104185B (en) * | 2013-01-23 | 2015-11-25 | 漳州市金安机电有限公司 | A kind of door-rolling machine chain broken prevention is stopped tight device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20111209 |