CN202245597U - Safety tongs for elevators - Google Patents
Safety tongs for elevators Download PDFInfo
- Publication number
- CN202245597U CN202245597U CN2011202216854U CN201120221685U CN202245597U CN 202245597 U CN202245597 U CN 202245597U CN 2011202216854 U CN2011202216854 U CN 2011202216854U CN 201120221685 U CN201120221685 U CN 201120221685U CN 202245597 U CN202245597 U CN 202245597U
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- China
- Prior art keywords
- safety
- support body
- pull bar
- bearing pin
- shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a pair of safety tongs for elevators; the pair of tongs comprises a connecting rod mechanism, a lifting mechanism and a safety switch component, wherein the connecting rod mechanism comprises a connecting shaft and a shaft head component which is arranged at the two ends of the connecting shaft by pre-tightened elastic connecting pieces; the shaft head component comprises a moving frame body, a first connecting pin shaft and a second connecting pin shaft; the shaft body of the connecting shaft is connected with a switch pressing plate of the safety switch component; the elastic connecting pieces have 15-18 kg of restoring elasticity; the lifting mechanism comprises a draw bar and a traction bar connecting seat; a lifting block is locked at one end of the draw bar in a threaded connection manner; a drawer plate is fixedly connected at the other end of the draw bar; and simultaneously a traction bar connecting seat, a limiting plate and two spaced rope cramps are sequentially arranged on draw bar between the lifting block and the drawer plate. Therefore, the pair of tongs has simple structure, is convenient to assemble and simultaneously can carry out mechanical action coordination very well when overspeeding and rope breakage phenomena occur in the elevator, thereby the safety protection function of the safety tongs is effectively ensured.
Description
Technical field
The utility model relates to a kind of elevator safety gear.
Background technology
The elevator safety clamp device is under the manipulation of velocity limiter, after very serious fault such as hypervelocity, disconnected rope appears in elevator, with the urgent stop of car and be clamped in a kind of safety device on the guide rail.He provides the actv. protective effect to the safe operation of elevator, generally it is installed on car frame or the counterweight frame.With the proposition that work car up-running over-speed protection requires, bidirectional safety tongs has use more widely now.
The action of safety tongs device is: make rope-clamping pliers clamp the limiting device rope through the velocity limiter action, along with the downward operation of car, governor rope is mentioned the safety tongs connecting rod mechanism; Cause the action of safety tongs connecting rod mechanism,, impel the voussoir of safety tongs in its pincers seat, upwards to slide through shift mechanism pull-up lifting rod; When voussoir with produce rubbing effect after guide rail contacts; Drive the safety tongs braking element and contact, make safety tongs be clamped on the guide rail stop car simultaneously with guide rail.
The Generally Recognized as safe clamp device is installed on car bottom girder or two heel posts, mainly is made up of pincers seat, voussoir, lifting rod, stretching structure and connecting rod mechanism etc.The general complex structure of existing safety tongs connecting rod mechanism is assembled not convenient; For the mechanical action inaccurate coordination of elevator appearance hypervelocity, disconnected rope phenomenon, reduced the function of safety protection of safety tongs device simultaneously.
The utility model content
The utility model is to the deficiency of prior art; A kind of elevator safety gear is provided, and it is simple in structure, and assembling is convenient; Mechanical action in the time of can carrying out simultaneously elevator appearance hypervelocity, disconnected rope phenomenon is well coordinated, and has guaranteed the function of safety protection of safety tongs device effectively.
For realizing above technical purpose, the utility model will be taked following technical scheme:
A kind of elevator safety gear comprises connecting rod mechanism, shift mechanism and safety switch assembly; Said connecting rod mechanism comprises adapter shaft and the spindle nose assembly that is installed in the adapter shaft two ends respectively through the Flexible Connector of pretension setting; Said spindle nose assembly comprises that dialling support body, first connects the bearing pin and the second connection bearing pin; One end of the said first connection bearing pin is fixed with dialling support body, and the other end then is connected with governor rope; The said group of support body connects bearing pin through second and is connected with the movable voussoir of safety tongs, and dial offered on the support body to be used for the mounting hole that the second connection bearing pin wears be waist shaped hole; Flexible Connector is socketed in the periphery that connects axis body, dials support body is socketed in adapter shaft through axle sleeve axle head; In addition, the axis body of said adapter shaft is connected with the switch press plate of safety switch assembly, and the reseting elasticity of said Flexible Connector is 15-18kg; Said shift mechanism comprises pull bar and is installed in the draw bar Connection Block on the pull bar, and near the body of rod said pull bar one end is arranged to screw rod, and screw rod is locked with the mode that is threaded and lifted piece; The other end of pull bar is captive joint tie rod plate then; Lift simultaneously draw bar Connection Block, positioning plate and two wire rope grip of setting at interval is installed on the pull bar between piece and the tie rod plate in proper order; Said tie rod plate is connected with the pincers seat of safety tongs.
The adjusting pad of the spindle nose component synchronization motion that is used to guarantee the adapter shaft two ends is installed on the said group of support body, and this adjusting pad is through placing the adjustable bolt positioning and locking of dialling in the corresponding bar hole of being offered on the support body; The axle head of the simultaneously said second connection bearing pin passes on the adjusting pad and fixes with the movable voussoir of safety tongs behind the corresponding through hole of offering.
Said draw bar Connection Block comprises sheath, angle-shaped piece and connecting panel, and sheath is socketed on the body of rod of pull bar, and connecting panel is installed on the pull bar through sheath, and angle-shaped piece is then captiveed joint through the mode of welding with connecting panel.
According to above technical scheme, can realize following beneficial effect:
1, the utility model adopts simple physical construction, has realized being connected between the movable voussoir of governor rope and safety tongs; Adopt Flexible Connector to realize resetting of the utility model; Be used for second and connect the waist shaped hole that bearing pin wears dialling to offer on the support body, so that dial the adjusting of installation site between support body and the movable voussoir; Adopt adjusting pad, to carry out each group support body respectively and installation site adjustment between the movable voussoir of its cooresponding safety tongs, to guarantee the conformability of spindle nose assembly action.Hence one can see that: the mechanical action when the utility model can carry out elevator appearance hypervelocity, disconnected rope phenomenon is well coordinated, and has guaranteed the function of safety protection of safety tongs device effectively.
2, the utility model is arranged to the screw-type connector with an end of pull bar so that with lift piece and be connected; The utility model is provided with the draw bar Connection Block on pull bar, so that pull bar is linked into an integrated entity with the draw bar that is used to be connected governor rope; The utility model also is provided with wire rope grip on pull bar so that governor rope can direct mount to pull bar, thereby the pulling force that can directly governor rope be provided is delivered to safety tongs; Accelerate the car stop.In addition, the utility model is provided with positioning plate on pull bar, to prevent wire rope grip under the tension of governor rope, makes significantly and moving.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structure for amplifying scheme drawing of I part among Fig. 2;
Among Fig. 1 to Fig. 4: wherein: safety tongs 1; Connecting rod mechanism 2; Shift mechanism 3; Connecting pin 4; First connects bearing pin 5; Following beam assembly 6;
Fig. 5 is the structural representation of the utility model connecting rod mechanism;
Fig. 6 is the birds-eye view of Fig. 5;
Fig. 7 is the left view of Fig. 5;
Fig. 8 is the structure for amplifying scheme drawing of II part among Fig. 6;
The structure for amplifying scheme drawing of III part among Fig. 6 among Fig. 9;
Among Fig. 5 to Fig. 9: spindle nose assembly 21; Dial support body 211; Axle sleeve 212; First connects bearing pin 213; Second connects bearing pin 214; Adapter shaft 22; Left spring 23; Right spring 24; Safety switch assembly 25; Switch bracket 251; Switch press plate 252; Bolt of rear end plate 253; Safety switch 254; Safety tongs 26; Adjusting pad 28; Adjustable bolt 281;
Figure 10 is the structural representation of the utility model shift mechanism.
Wherein: bearing pin 31; Lift piece 32; Pull bar 331; Positioning plate 332; Wire rope grip 333; Tie rod plate 334; Angle-shaped piece 341; Connecting panel 342; Sheath 35; Bolt 36.
The specific embodiment
Accompanying drawing discloses the structural representation of the related preferred embodiment of the utility model without limitation.Below will combine accompanying drawing that the technical scheme of the utility model at length is described.
Shown in Fig. 1 to 5, the described elevator safety gear connecting rod mechanism of the utility model is connected between safety tongs and the governor rope; Comprise adapter shaft and the spindle nose assembly that is installed in the adapter shaft two ends respectively through the Flexible Connector of pretension setting; Said spindle nose assembly comprises that dialling support body, first connects the bearing pin and the second connection bearing pin; One end of the said first connection bearing pin is fixed with dialling support body, and the other end then is connected with governor rope; The said group of support body connects bearing pin through second and is connected with the movable voussoir of safety tongs, and dial offered on the support body to be used for the mounting hole that the second connection bearing pin wears be waist shaped hole; Flexible Connector is socketed in the periphery that connects axis body, and the utility model adopts starves the spring that Flexible Connector is the pretension setting; Dial support body is socketed in adapter shaft through axle sleeve axle head; In addition, the axis body of said adapter shaft is connected with the switch press plate of safety switch assembly, and the reseting elasticity of said Flexible Connector is 15-18Kg.The adjusting pad of the spindle nose component synchronization motion that is used to guarantee the adapter shaft two ends is installed on the said group of support body, and this adjusting pad is through placing the adjustable bolt positioning and locking of dialling in the corresponding bar hole of being offered on the support body; The axle head of the simultaneously said second connection bearing pin passes on the adjusting pad and fixes with the movable voussoir of safety tongs behind the corresponding through hole of offering.
Specifically, the described each several part structure of the utility model is following:
The spindle nose assembly: be made up of group support body, axle sleeve and first, second connection bearing pin, axle sleeve and first, second connect bearing pin and are installed in respectively in the corresponding mounting hole of dialling on the support body, and weld fixing with group support body the axle sleeve and the first connection bearing pin respectively; Axle sleeve is used for being connected with adapter shaft; First connects bearing pin is used for being connected with governor rope; Second connects bearing pin is used for being connected with the movable voussoir of safety tongs.
Adapter shaft: be steel pipe;
Adjusting pad: be steel plate, offer the one group of waist shaped hole that parallels on it; Be used to adjust the installation site of the movable voussoir of dialling support body and safety tongs;
Safety switch assembly: the main control circuit that is used to connect or block elevator; It is a normally closed switch; Comprise safety switch, switch press plate and switch bracket, switch press plate is installed on the adapter shaft; Switch bracket is installed in down on the beam assembly, through the rotation of adapter shaft, realizes the closed and disconnection of switch press plate to safety switch.Reach the purpose of control elevator main control circuit break-make.
For the shift mechanism of safety tongs, comprise pull bar and be installed in the draw bar Connection Block on the pull bar, near the body of rod said pull bar one end is arranged to screw rod, and screw rod is locked with the mode that is threaded and is lifted piece; The other end of pull bar is captive joint tie rod plate then; Lift simultaneously draw bar Connection Block, positioning plate and two wire rope grip of setting at interval is installed on the pull bar between piece and the tie rod plate in proper order.Spacing in twos between said positioning plate and the two wire rope grip threes equates.Said draw bar Connection Block comprises sheath, angle-shaped piece and connecting panel, and sheath is socketed on the body of rod of pull bar, and connecting panel is installed on the pull bar through sheath, and angle-shaped piece is then captiveed joint through the mode of welding with connecting panel.It is the rubber making of 55-60 that sheath adopts shore hardness; The tie rod plate is connected with the pincers seat of safety tongs.
Claims (3)
1. an elevator safety gear comprises connecting rod mechanism, shift mechanism and safety switch assembly; It is characterized in that: said connecting rod mechanism comprises adapter shaft and the spindle nose assembly that is installed in the adapter shaft two ends respectively through the Flexible Connector of pretension setting; Said spindle nose assembly comprises that dialling support body, first connects the bearing pin and the second connection bearing pin; One end of the said first connection bearing pin is fixed with dialling support body, and the other end then is connected with governor rope; The said group of support body connects bearing pin through second and is connected with the movable voussoir of safety tongs, and dial offered on the support body to be used for the mounting hole that the second connection bearing pin wears be waist-shaped hole; Flexible Connector is socketed in the periphery that connects axis body, dials support body is socketed in adapter shaft through axle sleeve axle head; In addition, the axis body of said adapter shaft is connected with the switch press plate of safety switch assembly, and the reseting elasticity of said Flexible Connector is 15-18kg; Said shift mechanism comprises pull bar and is installed in the draw bar Connection Block on the pull bar, and near the body of rod said pull bar one end is arranged to screw rod, and screw rod is locked with the mode that is threaded and lifted piece; The other end of pull bar is captive joint tie rod plate then; Lift simultaneously draw bar Connection Block, positioning plate and two wire rope grip of setting at interval is installed on the pull bar between piece and the tie rod plate in proper order; Said tie rod plate is connected with the pincers seat of safety tongs.
2. elevator safety gear according to claim 1; It is characterized in that: the adjusting pad of the spindle nose component synchronization motion that is used to guarantee the adapter shaft two ends is installed on the said group of support body, and this adjusting pad is through placing the adjustable bolt positioning and locking of dialling in the corresponding bar hole of being offered on the support body; The axle head of the simultaneously said second connection bearing pin passes on the adjusting pad and fixes with the movable voussoir of safety tongs behind the corresponding through hole of offering.
3. elevator safety gear according to claim 1; It is characterized in that: said draw bar Connection Block comprises sheath, angle-shaped piece and connecting panel; Sheath is socketed on the body of rod of pull bar, and connecting panel is installed on the pull bar through sheath, and angle-shaped piece is then captiveed joint through the mode of welding with connecting panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202216854U CN202245597U (en) | 2011-06-28 | 2011-06-28 | Safety tongs for elevators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202216854U CN202245597U (en) | 2011-06-28 | 2011-06-28 | Safety tongs for elevators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202245597U true CN202245597U (en) | 2012-05-30 |
Family
ID=46106871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202216854U Expired - Fee Related CN202245597U (en) | 2011-06-28 | 2011-06-28 | Safety tongs for elevators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202245597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444690A (en) * | 2014-12-02 | 2015-03-25 | 江苏通鼎电梯有限公司 | Safety gear lifting linkage device arranged on car roof |
-
2011
- 2011-06-28 CN CN2011202216854U patent/CN202245597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444690A (en) * | 2014-12-02 | 2015-03-25 | 江苏通鼎电梯有限公司 | Safety gear lifting linkage device arranged on car roof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200628 |