CN209166103U - A kind of falling proof device for lifting furnace door - Google Patents
A kind of falling proof device for lifting furnace door Download PDFInfo
- Publication number
- CN209166103U CN209166103U CN201821750666.9U CN201821750666U CN209166103U CN 209166103 U CN209166103 U CN 209166103U CN 201821750666 U CN201821750666 U CN 201821750666U CN 209166103 U CN209166103 U CN 209166103U
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- CN
- China
- Prior art keywords
- safety pin
- furnace door
- lifting
- plunger
- lifting furnace
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- 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.)
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
A kind of falling proof device for lifting furnace door, it include the safety pin being set on lifting furnace door, connecting rod, spring and traction steel rope of cable, when being in accident condition, steel cable is gone up and down to unclamp so that the traction steel rope of cable loses the tractive force to connecting rod, spring pushes a stretching, the plunger of the safety pin of stretching outside safety pin to be caught in the card hole of the column to outside lifting furnace door；The top surface of the plunger of safety pin is in the inclined-plane being downwardly inclined, and its bottom surface is in along horizontal-extending horizontal plane, wherein, for the inner top surface of card hole inner cavity of plunger insertion, in inclined inclined-plane upward, horizontal plane that its inner bottom surface extends horizontally, the inner top surface of the card hole inner cavity mutually carve cooperation with the upper surface of the plunger of safety pin；When in accident condition, when by lifting furnace door described in external force pushing tow upward, the upper surface of the plunger of the safety pin is made the safety pin retraction evacuation by the press of the inner top surface of card hole inner cavity, so that the lifting furnace door rises under the effect of external force.
Description
Technical field
The utility model relates to technical field of heat treatment equipment, fill more particularly, to a kind of fall arrest for lifting furnace door
It sets.
Background technique
The fire door of general heating furnace or heat-treatment furnace is all oscilaltion moving switch, since fire door is than heavier,
So ground will be dropped to straight if there is the lifting steel rope breaking of mechanical breakdown or top during upper lower switch
On, ground assembly is damaged, or nearby have worker, sundries, then can injure people and object.
Also occurs the Anti-falling structure suitable for lifting furnace door now, as with reference to notification number is 202671591 U of CN
Chinese patent document, by the way that in accident condition, the card hole that safety pin is caught on the column on the outside of lifting furnace door makes elevator furnace
Door can not continue decline to avoid the dramatic decrease of fire door from injuring people and object；After accident condition, by safety pin always with liter
The card hole on column on the outside of drop fire door is in mated condition, and lifting furnace door can not lift movement again, needs to the traction safety
The drag rope of pin, which carries out lasting tension, could go back safety pin pulling-down to lift lifting furnace door, cumbersome, be work
Make personnel and lifting furnace door opening is checked that situation causes seriously affecting in efficiency in furnace.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is that a kind of clever structure is prevented for lifting furnace door
Drop device
To achieve the above object, scheme provided by the utility model are as follows: a kind of falling proof device for lifting furnace door, packet
Include the safety pin being set on lifting furnace door, connecting rod, spring and traction steel rope of cable, wherein the spring is set in the company
On bar, described connecting rod one end is connected with safety pin, and the other end is connected with traction steel rope of cable, and the traction steel rope of cable and driving institute
The lifting steel cable for stating lifting furnace door lifting is connected to a fixed, and when being in accident condition, the lifting steel cable unclamps so that described
Traction steel rope of cable loses the tractive force to connecting rod, and spring reset generates thrust, pushes a stretching outside safety pin, the safety pin of stretching
Plunger is caught in the pre-set card hole of column being preset with to lifting furnace door outside, to prevent lifting furnace door from continuing to fall；It is described
The top surface of the plunger of safety pin is in the inclined-plane being downwardly inclined, and its bottom surface is in along horizontal-extending horizontal plane, wherein supplies the pin
The inner top surface of the card hole inner cavity of head insertion horizontal plane that its inner bottom surface extends horizontally, card hole in inclined inclined-plane upward
Cooperation is mutually carved in the inner top surface of inner cavity and the upper surface of the plunger of the safety pin；When being in accident condition, by upward
When lifting furnace door described in external force pushing tow, the upper surface of the plunger of the safety pin by the inner top surface of card hole inner cavity press to
Make the safety pin retraction evacuation, so that the lifting furnace door rises under the effect of external force.
Further, the plunger end face of the safety pin is smooth circular arc camber.
Compared with the prior art, the utility model has the beneficial effect that through this structure, after generation accident (at this point,
Traction steel rope of cable and lifting steel cable all in releasing orientation), staff can by manpower (or some such as jack
Heavy equipment directly applies upward active force to lifting furnace door and lifting furnace door is made above to propose the safety pin insertion to lifting furnace door
It is located at the card hole of the top to column, removes external force at this time, is located at the cooperation of the card hole of the top in safety pin and column
Under, which is in open state, and staff can check the situation in furnace in time, considerably increase accident shape
The efficiency of lifting furnace door is opened after state.
Detailed description of the invention
Fig. 1 is the structural schematic diagram one of the utility model.
Fig. 2 is the structural schematic diagram two of the utility model.
Fig. 3 is partial enlarged view at the A of the utility model.
Wherein, 1- safety pin, 2- connecting rod, 3- spring, 4- traction steel rope of cable, 5- lifting furnace door, 6- card hole.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below:
Referring to shown in attached drawing 1 to attached drawing 3, it includes to set that the present embodiment, which is a kind of falling proof device for lifting furnace door,
Safety pin 1, connecting rod 2, spring 3 and the traction steel rope of cable 4 being placed on lifting furnace door 5, wherein spring 3 is set on connecting rod 2, even
2 one end of bar is connected with safety pin 1, and the other end is connected with traction steel rope of cable 4, and traction steel rope of cable 4 and driving lifting furnace door 5 are gone up and down
Lifting steel cable be connected to a fixed, when be in accident condition when, lifting steel cable unclamp so that traction steel rope of cable 4 loses to connecting rod 2
Tractive force, spring 3, which resets, generates thrust, pushes to open outside safety pin 1 and stretch out, the plunger of the safety pin 1 of stretching is caught in elevator furnace
Offer multiple card holes 6 at equal intervals from top to bottom on the pre-set card hole 6(column of column that 5 outside of door is preset with for peace
Full pin 1 is caught in), to prevent lifting furnace door 5 from continuing to fall；The fall arrest principle of the falling proof device, safety pin 1, connecting rod 2, bullet
Connection and interactively and use electric block between spring 3, traction steel rope of cable 4, lifting steel cable and lifting furnace door 5 is to elevator furnace
Door 5 carries out the structure of lifting drive control and principle can refer to the Chinese patent document that notification number is CN202671591U.
In the present embodiment, the top surface of the plunger of safety pin 1 is in the inclined-plane being downwardly inclined, and its bottom surface is in along horizontal extension
Horizontal plane, wherein for plunger insertion 6 inner cavity of card hole inner top surface in inclined inclined-plane upward and its inner bottom surface prolongs in level
The horizontal plane stretched, the inner top surface of 6 inner cavity of card hole mutually carve cooperation with the upper surface of the plunger of safety pin 1；When being in accident condition, lead to
When crossing external force pushing tow lifting furnace door 5 upward, the press of the upper surface of the plunger of safety pin 1 by the inner top surface of 6 inner cavity of card hole
To make the retraction evacuation of safety pin 1, so that lifting furnace door 5 rises under the effect of external force；Through this structure, when generation thing
Therefore rear (at this point, traction steel rope of cable 4 and lifting steel cable are all in releasing orientation), staff can be by manpower (for some small
The heat-treatment furnace of type) or some such as jack lifting equipment (for some heavier heat-treatment furnaces of relatively large fire door)
Upward active force is directly applied to lifting furnace door 5 lifting furnace door 5 is above mentioned to the safety pin 1 in lifting furnace door 5 and is inserted into
Column is located at the card hole 6 of the top, removes external force at this time, is located at the cooperation of the card hole 6 of the top in safety pin 1 and column
Under, which is in open state, and (i.e. when traction steel rope of cable 4 is in releasing orientation, lifting furnace door 5 can only be moved up
And cannot decline), staff can check the situation in furnace in time.
In the present embodiment, the plunger end face of safety pin 1 is smooth circular arc camber to reduce in 5 lifting process of lifting furnace door
The friction of the medial surface of the plunger and column of middle safety pin 1, reduces the loss of device.
In addition, it should be noted that, the specific embodiments described in this specification, each section title etc. can not
Together, all equivalent or simple changes done according to structure, feature and principle described in the concept of the patent of the utility model are included in this
In the protection scope of utility model patent.Those skilled in the art of the present invention can be to described specific reality
Example is applied to do various modifications or additions or be substituted in a similar manner, structure without departing from the utility model or
Beyond the scope defined by this claim, it all should belong to the protection range of the utility model.
Claims (2)
1. a kind of falling proof device for lifting furnace door includes safety pin (1), the connecting rod being set on lifting furnace door (5)
(2), spring (3) and traction steel rope of cable (4), wherein the spring (3) is set on the connecting rod (2), the connecting rod (2) one
End is connected with safety pin (1), and the other end is connected with traction steel rope of cable (4), and the traction steel rope of cable (4) and the driving lifting
The lifting steel cable of fire door (5) lifting is connected to a fixed, and when being in accident condition, the lifting steel cable unclamps so that the traction
Steel cable (4) loses the tractive force to connecting rod (2), and spring (3), which resets, generates thrust, and safety pin (1) is pushed to open stretching outside, stretching
The plunger of safety pin (1) is caught in the pre-set card hole of column (6) being preset with to lifting furnace door (5) outside, to prevent from going up and down
Fire door (5) continues to fall；It is characterized by: the top surface of the plunger of the safety pin (1) is in the inclined-plane being downwardly inclined, and its bottom surface
In along horizontal-extending horizontal plane, wherein supply the inner top surface of card hole (6) inner cavity of plunger insertion in inclined inclined-plane upward
And the horizontal plane that its inner bottom surface extends horizontally, the inner top surface of card hole (6) inner cavity are upper with the plunger of the safety pin (1)
Mutually carve cooperation in end face；When being in accident condition, by described in external force pushing tow upward when lifting furnace door (5), the safety pin (1)
Plunger upper surface by card hole (6) inner cavity inner top surface press to make the safety pin (1) retraction evacuation so that institute
Lifting furnace door (5) is stated to rise under the effect of external force.
2. a kind of falling proof device for lifting furnace door according to claim 1, it is characterised in that: the safety pin
(1) plunger end face is smooth circular arc camber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821750666.9U CN209166103U (en) | 2018-10-27 | 2018-10-27 | A kind of falling proof device for lifting furnace door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821750666.9U CN209166103U (en) | 2018-10-27 | 2018-10-27 | A kind of falling proof device for lifting furnace door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166103U true CN209166103U (en) | 2019-07-26 |
Family
ID=67335289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821750666.9U Active CN209166103U (en) | 2018-10-27 | 2018-10-27 | A kind of falling proof device for lifting furnace door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209166103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992609A (en) * | 2020-08-21 | 2020-11-27 | 江西豪斯特汽车零部件有限公司 | Plate-shaped blank processing system |
-
2018
- 2018-10-27 CN CN201821750666.9U patent/CN209166103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992609A (en) * | 2020-08-21 | 2020-11-27 | 江西豪斯特汽车零部件有限公司 | Plate-shaped blank processing system |
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