CN220264837U - Wedge block connecting structure of elevator safety tongs - Google Patents
Wedge block connecting structure of elevator safety tongs Download PDFInfo
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- CN220264837U CN220264837U CN202322263790.XU CN202322263790U CN220264837U CN 220264837 U CN220264837 U CN 220264837U CN 202322263790 U CN202322263790 U CN 202322263790U CN 220264837 U CN220264837 U CN 220264837U
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- wedge block
- elevator
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model relates to the technical field of elevator components, in particular to a wedge block connecting structure of an elevator safety tongs, which is used for clamping a guide rail to enable an elevator to be decelerated and stopped. According to the elevator safety tongs wedge block connecting structure, the inclined long holes and the guide pins are not required to be arranged, the wedge blocks are not required to be repeatedly assembled and disassembled for debugging, and the assembly difficulty of the wedge blocks is reduced.
Description
Technical Field
The utility model relates to the technical field of elevator components, in particular to a wedge block connecting structure of an elevator safety tongs.
Background
The elevator speed limiter and the elevator safety tongs are elevator core safety components and play a role in overspeed protection. When the elevator runs, the speed limiter can rotate and run, the actual running speed of the elevator can be sensitively captured, if the elevator is overspeed due to some unexpected reasons, the elevator speed limiter can act to drive the elevator safety tongs to act, and the elevator safety tongs clamp the guide rail to brake, so that the elevator running at overspeed is forced to stop.
In general, a passenger elevator uses progressive safety tongs (with an elastic element such as a spring) and a goods elevator (rated speed 0.63 or less) uses instantaneous safety tongs (without an elastic element).
The instantaneous safety tongs are generally characterized in that a wedge block is arranged in a chute of a tongs seat and is blocked by a baffle plate, an inclined long hole is formed in the baffle plate, a guide pin is arranged on the wedge block, and the guide pin slides on the inclined long hole to play a guiding role and prevent the wedge block from falling out.
Because the clearance between guide pin and the inclined slot hole is less, the voussoir slides in the pincers seat chute, and when the baffle mounted position is inaccurate like this, the guide pin collides with the inclined slot hole and interferes, needs repeated dismantlement, and the assembly degree of difficulty is higher.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the wedge block connecting structure of the elevator safety tongs, which can reduce the assembly difficulty of the wedge block.
In order to solve the technical problems, the elevator safety tongs are used for clamping the guide rail to enable the elevator to be decelerated and stopped, the elevator safety tongs wedge block connecting structure comprises a tongs seat, wedges and a baffle, wherein the tongs seat is provided with guide grooves for the guide rail to pass through and is provided with openings which are arranged forwards, two guide square bars which are arranged at intervals in a bilateral symmetry mode and protrude forwards are arranged in the grooves of the guide grooves, the guide square bars are obliquely arranged from bottom to top, two wedges are symmetrically arranged in bilateral symmetry mode, the rear sides of the wedges are provided with inclined grooves which are in one-to-one sliding connection with the two guide square bars, the two baffle plates are in threaded connection with the front sides of the tongs seat, the rear sides of the two baffle plates are used for the front sides of the wedges to abut, and a gap for the guide rail to extend into between the two wedges is arranged between the two baffle plates.
Alternatively, the upper side or the lower side of the wedge block is provided with a connecting threaded hole.
As an alternative scheme, the left side and the right side of the guide groove are inclined planes which incline outwards from bottom to top, the inclined planes are used for propping against the outer side surfaces of the wedge blocks on the same side, and the inclined planes on the same side, the outer side surfaces of the wedge blocks, the extending direction of the guide square bars and the extending direction of the chute are parallel to each other.
Alternatively, the inner side surface of the wedge block is vertically arranged and provided with an anti-slip surface.
As an alternative scheme, the middle part of the bottom of the guide groove is provided with an avoidance groove for avoiding the guide rail, and the width of the avoidance groove is larger than the width of the guide rail extending into the position between the two wedge blocks.
Alternatively, the avoidance groove extends up and down and penetrates through the upper side and the lower side of the clamp seat.
Alternatively, the distance between the front side and the rear side of the wedge block is smaller than the depth of the guide groove, and the difference between the distance between the front side and the rear side of the wedge block and the depth of the guide groove is smaller than the thickness of the forward protruding guide square strip.
The implementation of the utility model has the following beneficial effects:
according to the elevator safety tongs wedge block connecting structure, the tongs seat, the wedge blocks, the baffle plates, the guide grooves, the inclined grooves and the guide square bars are matched with each other, the inclined long holes and the guide pins are not required to be arranged, the wedge blocks are not required to be repeatedly assembled and disassembled, and the assembly difficulty of the wedge blocks is reduced.
Drawings
Fig. 1 is a schematic front view showing the structure of a wedge block connection structure of an elevator safety gear in an embodiment of the present utility model;
fig. 2 is a schematic top view of a wedge connection structure of an elevator safety gear according to an embodiment of the present utility model;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a view showing the layout of the chute on the wedge in an embodiment of the utility model;
FIG. 5 is a schematic view of an anti-skid surface according to an embodiment of the present utility model.
In the figure: 1. a clamp seat; 2. wedge blocks; 3. a baffle; 4. a guide groove; 5. guiding square bars; 6. a chute; 7. a connecting threaded hole; 8. an inclined plane; 9. an anti-slip surface; 10. an avoidance groove; 11. and a guide rail.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical ideas claimed in the present utility model.
As shown in fig. 1 to 5, an elevator safety gear wedge connection structure in an embodiment of the present utility model is provided, in which an elevator safety gear is used to clamp a guide rail 11 to decelerate and stop an elevator. In fact, the guide rail 11 extends up and down and is installed in the elevator shaft, the elevator speed limiter is installed at the top of the elevator car, the elevator safety tongs are installed at the bottom of the elevator car, and when the elevator runs at overspeed, the elevator speed limiter enables the elevator safety tongs to act through the linkage mechanism, so that the elevator is decelerated and stopped.
The elevator safety tongs voussoir connection structure includes pincers seat 1, voussoir 2 and baffle 3, pincers seat 1 is equipped with and supplies guide rail 11 to pass and opening to set up guide way 4 forward, be equipped with two bilateral symmetry interval settings and the convex direction square strip 5 forward in the inslot of guide way, direction square strip 5 is from down upwards outwards slope setting, and the direction square strip 5 on the left is from down upwards left slope setting promptly for the direction square strip 5 on the right is from down upwards left slope setting for the distance between two direction square strips 5 is from last decreasingly down.
Two wedge blocks 2 bilateral symmetry sets up and the rear side is equipped with the chute 6 with two direction square 5 one-to-one sliding connection for left wedge block 2 passes through chute 6 and left direction square 5 sliding connection and right wedge block 2 passes through chute 6 and right direction square 5 sliding connection, under the effect of direction square 5, if two wedge blocks 2 move down in step relative to pincers seat 1, makes the clearance between two wedge blocks 2 reduce under the cooperation of direction square 5 and chute 6, makes two wedge blocks 2 offset with the guide rail 11 left and right sides respectively in order to press from both sides tight guide rail 11, makes the elevator slow down and stops. In fact, the elevator safety gear is provided with a lifting mechanism (not shown in the drawing) for driving the wedge block 2 to synchronously lift, and the lifting mechanism is connected with an elevator speed limiter through a linkage mechanism, so that the lifting mechanism drives the wedge block 2 to synchronously move downwards and clamp the guide rail 11 when the elevator overspeed.
The two baffles 3 are in threaded connection with the front side of the clamp seat 1, the rear side of the baffles is used for propping against the front sides of the wedges 2, and a gap for the guide rail 11 to extend into between the two wedges 2 is arranged between the two baffles 3. During installation, two wedges 2 are installed in the guide groove 4 of the clamp seat 1 in a matched mode through the chute 6 and the guide square strip 5, then the upper baffle plate 3 is installed in a threaded mode, the wedges 2 are prevented from moving back and forth to be separated from the clamp seat 1, due to the fact that the matching accuracy of the chute 6 and the guide square strip 5 is high, oblique long holes and guide pins are not required to be arranged, the wedges 2 do not need to be assembled and disassembled repeatedly, and the assembly difficulty of the wedges 2 is reduced. It should be noted that the distance between the front side and the rear side of the wedge block 2 is preferably smaller than the depth of the guide groove 4, so that the rear side of the baffle 3 and the bottom of the guide groove 4 are prevented from clamping the front side and the rear side of the wedge block 2 respectively, the driving force required for driving the wedge block 2 to slide relative to the guide square bar 5 is reduced, the difference between the distance between the front side and the rear side of the wedge block 2 and the depth of the guide groove 4 is smaller than the thickness of the guide square bar 5 protruding forward, and the chute 6 is prevented from being separated from the guide square bar 5 due to the forward movement of the wedge block 2, so that the sliding connection between the chute 6 and the guide square bar 5 is prevented from being damaged.
According to the elevator safety tongs wedge block connecting structure, the tongs seat 1, the wedge block 2, the baffle plate 3, the guide groove 4, the chute 6 and the guide square bar 5 are matched with each other, so that an inclined long hole and a guide pin are not required to be arranged, the wedge block 2 is not required to be assembled and disassembled repeatedly, and the assembly difficulty of the wedge block 2 is reduced.
Specifically, the upper side or the lower side of the wedge block 2 is preferably provided with a connecting threaded hole 7, and the wedge block 2 is connected with a lifting mechanism of the elevator safety gear through the connecting threaded hole 7, so that the lifting mechanism can push the two wedge blocks 2 to synchronously move downwards to clamp the guide rail 11.
More specifically, the left and right sides of the guide groove 4 are preferably inclined planes 8 inclined from bottom to top outwards, that is, the left side of the guide groove 4 is inclined plane 8 inclined from bottom to top to left, and the right side of the guide groove 4 is inclined plane 8 inclined from bottom to top to right; the inclined plane 8 is used for propping against the outer side surface of the wedge block 2 on the same side, namely the left inclined plane 8 is used for propping against the left side of the wedge block 2 on the left side, and the right inclined plane 8 is used for propping against the right side of the wedge block 2 on the right side; the inclined plane 8 on the same side, the outer side surface of the wedge block 2, the extending direction of the guide square bar 5 and the extending direction of the chute 6 are mutually parallel, the inclined plane 8 is matched with the outer side of the wedge block 2 to further limit the sliding direction of the wedge block 2 relative to the clamp seat 1, and when the wedge block 2 clamps the guide rail 11, the inclined plane 8 and the outer side of the wedge block 2 are propped against each other to provide supporting force for clamping the guide rail 11 by the wedge block 2, and when the elevator is decelerated and stopped.
The inner side surface of the wedge block 2 is preferably vertically arranged and provided with an anti-slip surface 9, that is, the right side of the left wedge block 2 is vertically arranged and provided with the anti-slip surface 9, the left side of the right wedge block 2 is vertically arranged and provided with the anti-slip surface 9, and when the two wedge blocks 2 clamp the guide rail 11 from the left side and the right side, the clamping effect of the wedge block 2 on the guide rail 11 is ensured.
Furthermore, the middle part of the bottom of the guide groove 4 is preferably provided with an avoidance groove 10 for avoiding the guide rail 11, and the width of the avoidance groove 10 is larger than the width of the part of the guide rail 11 extending into the space between the two wedge blocks 2, so that the contact of the guide rail 11 at the bottom of the guide groove 4 is prevented from affecting the operation of the elevator. Further, the avoiding groove 10 preferably extends up and down and penetrates through the upper side and the lower side of the jaw seat 1, so that the bottom of the guiding groove 4 does not collide with the guiding rail 11 when the jaw seat 1 moves up and down relative to the guiding rail 11.
Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present utility model as defined in the appended claims.
Claims (7)
1. The utility model provides an elevator safety tongs voussoir connection structure, elevator safety tongs are used for cliing the guide rail and make elevator speed reduction system stop, its characterized in that: the elevator safety tongs voussoir connection structure includes pincers seat, voussoir and baffle, pincers seat is equipped with the guide way that supplies the guide rail to pass and the opening set up forward, the inslot of guide way is equipped with two bilateral symmetry interval settings and the convex direction square strip forward, the direction square strip is from down upwards outside slope setting, two the voussoir bilateral symmetry sets up and the rear side be equipped with two direction square strip one-to-one sliding connection's chute, two baffle and pincers seat front side threaded connection and rear side are used for the voussoir front side to offset, two be equipped with between the baffle and supply the guide rail to stretch into the clearance between two voussoirs.
2. An elevator safety gear wedge connection as claimed in claim 1, wherein: the upper side or the lower side of the wedge block is provided with a connecting threaded hole.
3. An elevator safety gear wedge connection as claimed in claim 2, wherein: the left side and the right side of the guide groove are inclined planes which incline outwards from bottom to top, the inclined planes are used for propping against the outer side surfaces of the wedge blocks on the same side, and the inclined planes on the same side, the outer side surfaces of the wedge blocks, the extending direction of the guide square bars and the extending direction of the chute are mutually parallel.
4. An elevator safety gear wedge connection as claimed in claim 1, wherein: the inner side surface of the wedge block is vertically arranged and provided with an anti-slip surface.
5. An elevator safety gear wedge connection as set forth in claim 4, wherein: the middle part of the bottom of the guide groove is provided with an avoidance groove for avoiding the guide rail, and the width of the avoidance groove is larger than the width of the guide rail extending into the position between the two wedge blocks.
6. An elevator safety gear wedge connection as set forth in claim 5, wherein: the avoidance groove extends up and down and penetrates through the upper side and the lower side of the clamp seat.
7. An elevator safety gear wedge connection as claimed in claim 1, wherein: the distance between the front side and the rear side of the wedge block is smaller than the depth of the guide groove, and the difference between the distance between the front side and the rear side of the wedge block and the depth of the guide groove is smaller than the thickness of the forward protruding guide square strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263790.XU CN220264837U (en) | 2023-08-22 | 2023-08-22 | Wedge block connecting structure of elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263790.XU CN220264837U (en) | 2023-08-22 | 2023-08-22 | Wedge block connecting structure of elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220264837U true CN220264837U (en) | 2023-12-29 |
Family
ID=89318726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322263790.XU Active CN220264837U (en) | 2023-08-22 | 2023-08-22 | Wedge block connecting structure of elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220264837U (en) |
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2023
- 2023-08-22 CN CN202322263790.XU patent/CN220264837U/en active Active
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