CN111017675A - Safety protection clamp for elevator - Google Patents
Safety protection clamp for elevator Download PDFInfo
- Publication number
- CN111017675A CN111017675A CN201911228131.4A CN201911228131A CN111017675A CN 111017675 A CN111017675 A CN 111017675A CN 201911228131 A CN201911228131 A CN 201911228131A CN 111017675 A CN111017675 A CN 111017675A
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- China
- Prior art keywords
- fixed clamp
- block
- blocks
- sliding
- tongs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses elevator safety protection tongs, which comprise a bracket, an upper cavity body, a lower cavity body, an upper tong body and a lower tong body, wherein the upper cavity body and the lower cavity body are arranged in the bracket and are connected up and down; the upper clamp body comprises double upper fixed clamp blocks and sliding parts arranged on the double upper fixed clamp blocks, and a limiting part is formed between the sliding parts and the upper fixed clamp blocks; the lower clamp body comprises double lower fixed clamp blocks arranged on the bracket and movable wedge blocks arranged on the double lower fixed clamp blocks, the movable wedge blocks are provided with sliding part matching parts matched with the sliding parts, and the lower fixed clamp blocks penetrate through the upper ends of the partition plates and are clamped in the limiting parts; the clamp comprises a support and is characterized by further comprising a pull rod, one end of the pull rod penetrates through the upper side wall of the support, the other end of the pull rod is connected with a connecting block, an inclined pin hole is formed in the connecting block, and a pin shaft penetrating through the pin hole is arranged on the rear side wall of the lower fixed clamp block. This elevator safety protection pincers can effectively prevent the derailment, and the security is high.
Description
Technical Field
The invention relates to elevator accessories, in particular to elevator safety protection tongs.
Background
In order to prevent the elevator from going up or down too fast and causing accidents, safety tongs are generally installed at two ends of a lower beam, when a car is overspeed, a speed limiter arranged in an elevator hoistway acts to drive the safety tongs to act to clamp a rail to stop the car, the safety tongs generally comprise an instantaneous type safety tongs and a progressive type safety tongs, so that the required quality of the safety tongs is higher, the traditional progressive type safety tongs do not take protection measures, namely, the parts sliding mutually are not protected, the mutually sliding brake parts can easily slide out under severe vibration, and certain potential safety hazards are caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing elevator safety protection tongs, which can prevent a braking part from derailing and have certain potential safety hazards.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the elevator safety protection tongs comprise a bracket, an upper cavity and a lower cavity which are arranged in the bracket and are connected up and down, wherein the upper cavity and the lower cavity are also provided with a partition plate, the partition plate is of a middle opening structure, and the elevator safety protection tongs also comprise an upper tong body which is arranged in the upper cavity and can move in a translation manner and a lower tong body which is arranged in the lower cavity;
the upper clamp body comprises double upper fixed clamp blocks and sliding parts arranged on the double upper fixed clamp blocks, and a limiting part is formed between the sliding parts and the upper fixed clamp blocks;
the lower clamp body comprises double lower fixed clamp blocks arranged on the bracket and movable wedge blocks arranged on the double lower fixed clamp blocks, sliding part matching parts matched with the sliding parts are arranged on the movable wedge blocks, and the lower fixed clamp blocks penetrate through the upper end of the partition plate and are clamped in the limiting parts;
the novel clamp is characterized by further comprising a pull rod, one end of the pull rod penetrates through the upper side wall of the support, the other end of the pull rod is connected with a connecting block, an upward inclined pin hole is formed in the connecting block, and a pin shaft penetrating through the pin hole is formed in the rear side wall of the lower fixing clamp block.
Preferably, the sliding part comprises clamping plates arranged on the front side wall and the rear side wall of the upper fixed clamp block, the outer end of each clamping plate is recessed inwards, a sliding rail is formed at one recessed end of each clamping plate, and the front side wall and the rear side wall of the movable wedge block, which are close to one end of the lower fixed clamp block, are recessed inwards to form sliding grooves matched with the sliding rails.
Preferably, the limiting part comprises a clamping groove formed by the inward concave part of the outer end of the clamping plate and the upper fixing clamp block, and the lower fixing clamp block penetrates through the upper end of the partition plate and is arranged in the clamping groove.
Preferably, an acute angle formed by the clamping plate and a horizontal plane is the same as an acute angle formed by the lower fixed clamp block and the horizontal plane.
Preferably, the lower fixed clamp block is connected with the partition plate through a part of the partition plate.
Preferably, the device further comprises a pre-tightening mechanism, the pre-tightening mechanism comprises a U-shaped cushion pad, the U-shaped cushion pad is of a front end opening structure, and the extending ends on two sides of the U-shaped cushion pad are respectively connected with the two side walls of the upper cavity.
Preferably, the lower end of the lower fixed clamp block is provided with a horizontally arranged bearing plate, one end of the bearing plate is fixed with the bottom side wall of the lower cavity, and the other end of the bearing plate is used for bearing the movable wedge block.
Preferably, a back plate is arranged at the rear end of the bracket.
Preferably, the center of the bracket is provided with a through slot for the guide rail to pass through.
By adopting the technical scheme, the movable wedge block can move upwards through the sliding part and the matching part of the sliding part, the sliding part and the sliding matching part are matched together in the process and are not easy to derail, the limiting part formed by the sliding part and the upper fixed clamp block is buckled with the lower fixed clamp block, and the lower fixed clamp block is fixed on the bracket to form a structure which is mutually clamped together, so that the whole structure is not easy to derail, and the potential safety hazard is greatly reduced.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of the present invention;
fig. 3 is a perspective view of the present invention.
In the figure, 1-bracket, 2-upper cavity, 3-lower cavity, 4-clapboard, 5-upper clamp body, 51-upper fixed clamp block, 52-sliding part, 521-clamping plate, 522-sliding rail, 53-limiting part, 531-clamping groove, 6-lower clamp body, 61-lower fixed clamp block, 62-movable wedge block, 621-sliding groove, 63-sliding part matching part, 7-pull rod, 8-connecting block, 9-pin hole, 10-pin shaft, 11-pre-tightening mechanism, 111-U-shaped buffer cushion, 12-bearing plate, 13-back plate and 14-through groove.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
An elevator safety protection clamp comprises a support 1, an upper cavity 2 and a lower cavity 3 which are arranged in the support 1 and are connected up and down, wherein a partition plate 4 is further arranged on the upper cavity 2 and the lower cavity 3, the partition plate 4 is also horizontally arranged, the partition plate 4 is of a middle opening structure, and can be seen in figure 1, and the elevator safety protection clamp also comprises an upper clamp body 5 which is arranged in the upper cavity 2 and can move in a translation mode and a lower clamp body 6 which is arranged in the lower cavity 3;
the upper clamp body 5 includes a pair of upper fixed clamp blocks 51 and a sliding portion 52 disposed on the pair of upper fixed clamp blocks 51, a limiting portion 53 is formed between the sliding portion 52 and the upper fixed clamp blocks 51, the pair of upper fixed clamp blocks 51 can be specifically divided into a left upper fixed clamp block 51 and a right upper fixed clamp block 51 in the present embodiment, and the left and right upper fixed clamp blocks 51 are disposed on the partition plate 4 and can slide relative to the partition plate 4;
the lower clamp body 6 comprises a double lower fixed clamp block 61 arranged on the bracket 1 and a movable wedge block 62 arranged on the double lower fixed clamp block 61, the movable wedge block 62 is provided with a sliding part matching part 52 matched with the sliding part 52, and the lower fixed clamp block 61 penetrates through the upper end of the partition plate 4 and is clamped in the limiting part 53;
the clamp is characterized by further comprising a pull rod 7, one end of the pull rod 7 penetrates through the upper side wall of the support 1, the other end of the pull rod is connected with a connecting block 8, an upward inclined pin hole 9 is formed in the connecting block 8, and a pin shaft 10 penetrating through the pin hole 9 is arranged on the rear side wall of the lower fixing clamp block 61.
In the specific implementation process, when the speed governor in the machine room at the top of the hoistway is involved to work, the pull rod 7 is pulled up, at the moment, along with the continuous lifting of the pull rod 7, the two movable wedges 62 continuously move upwards and approach to each other along with the sliding of the sliding part 52 and the sliding part matching part 52, and when the distance between the two movable wedges 62 can clamp the guide rail of the elevator, namely, in a braking state, the pull rod 7 does not move upwards any more. It can be understood that the whole braking process is the process that the movable wedge block 62 rises continuously, the pin 10 reaches the highest end from the lowest end of the pin hole 9 in the whole process, and the braking force reaches the top level at the highest end, so when the safety protection clamp is selected, the specific elevator running condition should be fully considered.
In the present invention, the sliding portion 52 includes a clamping plate 521 disposed on the front and rear side walls of the upper fixed caliper block 51, wherein the outer end of the clamping plate 521 is recessed inwards, a sliding rail 522 is formed at the recessed end thereof, and the front and rear side walls of the movable wedge 62 near the end of the lower fixed caliper block 61 are recessed inwards to form a sliding slot 621 adapted to the sliding rail 522, and particularly, referring to fig. 3, in the process that the movable wedge 62 is raised continuously, the sliding slot 621 moves continuously along the sliding rail 522.
Referring to fig. 1 in combination with fig. 3, the limiting portion 53 includes a clamping groove 531 formed by the outer end of the clamping plate 521 recessed inward and the upper fixed block 51, the lower fixed block 61 is disposed in the clamping groove 531 through the upper end of the partition plate 4, the space inside the clamping groove 531 is sufficient, and the lower fixed block 61 is not matched with the clamping groove 531, it can be understood that the clamping groove 531 is sufficient in space such that the lower fixed block 61 is still inside the clamping groove 531 when the upper fixed block 51 and the clamping plate 521 slide on the plane, and the movable wedge 62 is gradually separated from the lower fixed block 61 during the continuous rising of the movable wedge 62, and when the movable wedge 62 is completely separated from the lower fixed block 61, the movable wedge 62 pushes the upper fixed block 51 and the clamping plate 521 to move horizontally toward the inside of the bracket 1.
The pre-tightening mechanism 11 of the present invention includes a U-shaped cushion 111, the U-shaped cushion 111 has a front end opening structure, and the extending ends of the two sides of the U-shaped cushion are respectively connected to the two side walls of the upper chamber 2, specifically, referring to fig. 1, when the movable wedge 62 pushes the upper fixed caliper 51 and the clamping plate 521 to move horizontally to a certain extent towards the inside of the bracket 1, the U-shaped cushion 111 cannot be deformed continuously, but pushes the upper fixed caliper 51 and the clamping plate 521 to move outwards, and the movable wedge 62 connected to the clamping plate 521 through the sliding rail 522 and the sliding groove 621 clamps the guide rail, thereby playing a braking role.
In the design of the clamping plate 521 and the lower fixed clamp block 61, the size of the acute angle formed by the clamping plate 521 and the horizontal plane is the same as the size of the acute angle formed by the lower fixed clamp block 61 and the horizontal plane, so that the situation that the clamping is easy to block after long-term operation due to deviation or different formed acute angles is prevented in the sliding process.
In the present invention, the portion of the lower fixing clamp block 61 penetrating through the partition plate 4 is connected to the partition plate 4, which may be welded or riveted, so as to further reinforce the lower fixing clamp block 61.
Referring to fig. 1, a horizontally disposed bearing plate 12 is disposed at the lower end of the lower fixed clamp block 61, and one end of the lower fixed clamp block 61 is fixed to the bottom side wall of the lower cavity 3, and the other end is used to bear a movable wedge 62,
referring to fig. 2, the rear end of the bracket 1 is provided with a back plate 13, and the back plate 13 may also be connected to the entire U-shaped cushion 111 to prevent the U-shaped cushion 111 from shifting laterally.
The bracket 1 is provided with a through slot 14 in the center for the guide rail to pass through, the through slot 14 can be referred to as 3, and the design of the through slot 14 is also such that the guide rail passing through the slot can also pass between the two movable wedges 62 and is optimally in the middle.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The utility model provides an elevator safety protection pincers, includes the support, sets up the last cavity and the lower cavity that link to each other from top to bottom in the support, wherein well upper cavity still is provided with the baffle with lower cavity, and wherein the baffle is middle open structure, its characterized in that: the clamp also comprises an upper clamp body which is arranged in the upper cavity and can move in a translation way and a lower clamp body which is arranged in the lower cavity;
the upper clamp body comprises double upper fixed clamp blocks and sliding parts arranged on the double upper fixed clamp blocks, and a limiting part is formed between the sliding parts and the upper fixed clamp blocks;
the lower clamp body comprises double lower fixed clamp blocks arranged on the bracket and movable wedge blocks arranged on the double lower fixed clamp blocks, sliding part matching parts matched with the sliding parts are arranged on the movable wedge blocks, and the lower fixed clamp blocks penetrate through the upper end of the partition plate and are clamped in the limiting parts;
the novel clamp is characterized by further comprising a pull rod, one end of the pull rod penetrates through the upper side wall of the support, the other end of the pull rod is connected with a connecting block, an upward inclined pin hole is formed in the connecting block, and a pin shaft penetrating through the pin hole is formed in the rear side wall of the lower fixing clamp block.
2. The elevator safety protection tongs of claim 1, characterized in that: the sliding part comprises clamping plates arranged on the front side wall and the rear side wall of the upper fixed clamp block, the outer end of each clamping plate is inwards recessed, a sliding rail is formed at one recessed end of each clamping plate, and the front side wall and the rear side wall of the movable wedge block, which are close to one end of the lower fixed clamp block, are inwards recessed to form sliding grooves matched with the sliding rails.
3. The elevator safety tongs of claim 2, characterized in that: the limiting part comprises a clamping groove formed by the inward concave part of the outer end of the clamping plate and the upper fixing clamp block, and the lower fixing clamp block penetrates through the upper end of the partition plate and is arranged in the clamping groove.
4. The elevator safety tongs of claim 2, characterized in that: the size of an acute angle formed by the clamping plate and the horizontal plane is the same as that of an acute angle formed by the lower fixed clamp block and the horizontal plane.
5. The elevator safety protection tongs of claim 1, characterized in that: the part of the lower fixed clamp block penetrating through the partition plate is connected with the partition plate.
6. The elevator safety protection tongs of claim 1, characterized in that: the pre-tightening mechanism comprises a U-shaped cushion pad, the U-shaped cushion pad is of a front end opening structure, and the extending ends of the two sides of the U-shaped cushion pad are respectively connected with the two side walls of the upper cavity.
7. The elevator safety protection tongs of claim 1, characterized in that: and a horizontally arranged bearing plate is arranged at the lower end of the lower fixed clamp block, one end of the lower fixed clamp block is fixed with the bottom side wall of the lower cavity, and the other end of the lower fixed clamp block is used for bearing the movable wedge block.
8. The elevator safety protection tongs of claim 1, characterized in that: the rear end of the bracket is provided with a back plate.
9. The elevator safety protection tongs of claim 1, characterized in that: and a through groove for the guide rail to pass through is formed in the center of the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228131.4A CN111017675A (en) | 2019-12-04 | 2019-12-04 | Safety protection clamp for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228131.4A CN111017675A (en) | 2019-12-04 | 2019-12-04 | Safety protection clamp for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111017675A true CN111017675A (en) | 2020-04-17 |
Family
ID=70207346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911228131.4A Pending CN111017675A (en) | 2019-12-04 | 2019-12-04 | Safety protection clamp for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111017675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111731839A (en) * | 2020-06-28 | 2020-10-02 | 浙江金马逊机械有限公司 | Clamping and lifting mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325807Y (en) * | 2008-11-27 | 2009-10-14 | 杭州沪宁电梯配件有限公司 | Safe clamp of elevator car |
| JP2012035982A (en) * | 2010-08-09 | 2012-02-23 | Toshiba Elevator Co Ltd | Stop device and elevator |
| CN105905740A (en) * | 2016-06-25 | 2016-08-31 | 浙江南奥电梯有限公司 | Elevator safety clamp |
-
2019
- 2019-12-04 CN CN201911228131.4A patent/CN111017675A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325807Y (en) * | 2008-11-27 | 2009-10-14 | 杭州沪宁电梯配件有限公司 | Safe clamp of elevator car |
| JP2012035982A (en) * | 2010-08-09 | 2012-02-23 | Toshiba Elevator Co Ltd | Stop device and elevator |
| CN105905740A (en) * | 2016-06-25 | 2016-08-31 | 浙江南奥电梯有限公司 | Elevator safety clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111731839A (en) * | 2020-06-28 | 2020-10-02 | 浙江金马逊机械有限公司 | Clamping and lifting mechanism |
| CN111731839B (en) * | 2020-06-28 | 2021-12-10 | 浙江金马逊机械有限公司 | Clamping and lifting mechanism |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200417 |
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| WD01 | Invention patent application deemed withdrawn after publication |