CN210020908U - Speed difference falling protector - Google Patents
Speed difference falling protector Download PDFInfo
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- CN210020908U CN210020908U CN201920104923.XU CN201920104923U CN210020908U CN 210020908 U CN210020908 U CN 210020908U CN 201920104923 U CN201920104923 U CN 201920104923U CN 210020908 U CN210020908 U CN 210020908U
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- pawl
- safety
- pawl shaft
- sliding
- shell
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Abstract
The utility model provides a speed difference safety hook belongs to the safety hook field. The speed difference falling protector comprises a shell, a rotary rope winding device and a safety rope, wherein the shell is internally provided with the rotary rope winding device, one end of the safety rope is connected with the rotary rope winding device, the other end of the safety rope penetrates out of the shell, the tail end of the safety rope is connected with a human body, the rotary rope winding device enables the safety rope to freely stretch and retract along with the working movement of an operator, and a locking device is arranged on the rotary rope winding device, the locking device comprises a sliding disc and a pawl shaft arranged on the sliding disc, a sliding chute is arranged on the sliding disc and used for enabling the pawl shaft to slide in the sliding chute, a protective sleeve is sleeved on the pawl shaft, the pawl shaft can slide in the sliding chute, the pawl shaft is connected with a pawl rotating around the pawl shaft, a ratchet is arranged in the shell and used for being clamped with the ratchet, and a hanging ring used for fixing is arranged at the top of the shell. The utility model discloses protection pawl axle that can be fine.
Description
Technical Field
The utility model belongs to the safety hook field, in particular to speed differential safety hook.
Background
The speed difference type safety hook is a safety protection tool specially designed for falling from high altitude. The working principle is that the falling speed difference of the object is utilized to carry out automatic control. The differential safety hook mainly comprises a lifting ring, a shell and a safety rope, wherein when the differential safety hook is used, the lifting ring at one end of the shell is hung on a structure, and one end of the safety rope is connected with an operator.
If the operator accidentally falls from high altitude, the speed difference type safety catch can immediately start the locking mechanism to lock the safety rope to prevent the operator from further falling because of the over-high descending speed. The general speed difference type falling protector is characterized in that a pawl which is elastically folded is connected to a rotating disc and matched with a fixed disc, when an operator falls carelessly and a safety rope is pulled down rapidly, the pawl is thrown away centrifugally and blocks a fixed inner fluted disc, so that the rotating disc stops rotating, and the falling of the operator is prevented. Because the descending speed is very fast, the pawl stops descending immediately after clamping the inner fluted disc, no buffer exists for operators, and certain damage is caused to human bodies. The buffer can be realized through the mode of the slot, the damage to a human body is reduced, but when the pawl shaft slides in the slot, the pawl shaft is easy to wear, and the service life of the pawl shaft is influenced.
Disclosure of Invention
The utility model aims at providing a speed difference safety hook aiming at the above problems existing in the prior art.
The purpose of the utility model can be realized by the following technical proposal: a speed difference falling protector is characterized by comprising a shell, wherein a rotary rope winding device and a safety rope wound on the rotary rope winding device are arranged in the shell, one end of the safety rope is connected with the rotary rope winding device, the other end of the safety rope penetrates out of the shell, the tail end of the safety rope is used for being connected with a human body, the rotary rope winding device is used for enabling the safety rope to freely stretch and retract along with the working movement of an operator, a locking device is arranged on the rotary rope winding device and used for locking the safety rope to prevent the operator from continuously falling down, the locking device comprises a sliding disc and a pawl shaft arranged on the sliding disc, a sliding groove is formed in the sliding disc and used for enabling the pawl shaft to slide in the sliding groove, a protective sleeve is sleeved on the pawl shaft, and the pawl shaft can slide in the sliding groove, the ratchet mechanism is characterized in that the pawl shaft is connected with a pawl which rotates around the pawl shaft, a ratchet is arranged in the shell, the pawl is used for being clamped with the ratchet, and a hanging ring used for fixing is arranged at the top of the shell.
The utility model discloses a theory of operation: the safety hook is fixed through the lifting ring when the safety hook works, the safety rope is drawn out of the safety hook and tied to a human body, the rotary rope winding device can freely stretch out and draw back when an operator works and moves, and the locking device can lock the safety rope to prevent the operator from continuing to fall down. When an operator accidentally falls from high altitude, the descending speed is increased, the pulling speed of the safety rope is increased, the locking device is started, and the sliding disc is provided with the sliding groove, so that the rope winding device is not immediately clamped after the pawl and the ratchet are clamped, but the pawl shaft firstly slides to the other end of the sliding groove in the sliding groove and then the rope winding device is completely fixed, stops descending, plays a role in buffering, and reduces damage to a human body. The protective sleeve can protect the pawl shaft, reduce the abrasion of the pawl shaft and prolong the service life of the pawl shaft.
In the speed difference safety hook, the protective sleeve is made of a metal material.
In the speed difference safety hook, the protective sleeve is positioned at the sliding connection part of the chute and the pawl shaft.
In the speed difference falling protector, the sliding disc is divided into an upper disc and a lower disc, the upper disc and the lower disc are connected through a connecting piece, the sliding grooves are located on the upper disc and the lower disc, and the pawl shaft penetrates through the sliding grooves of the upper disc and the sliding grooves of the lower disc.
In the speed difference falling protector, the sliding disc is further provided with a permanent magnet, and the permanent magnet is used for adsorbing the pawl.
In the speed difference falling protector, the bottom of the shell is provided with a belt outlet, and the belt outlet is used for extending out of the safety rope.
In the buffering type speed difference falling protector, the belt outlet is provided with an anti-abrasion layer, and the anti-abrasion layer is used for preventing the safety rope from being abraded.
In the speed difference falling protector, the anti-abrasion layer is made of flexible materials.
In the buffering type speed difference falling protector, the tail end of the safety rope is connected with a lock catch, and the lock catch is used for being buckled with a safety belt wound on a human body.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses a protection pawl axle that the protective sheath can be fine prevents that it from being worn and torn, has increased the life of pawl axle.
2. The utility model discloses still be provided with the permanent magnet on the sliding tray, the permanent magnet is used for adsorbing the pawl. When the safety rope is normally used and an operator does not fall from high altitude, the permanent magnet adsorbs the pawl to enable the pawl not to be clamped with the ratchet, and the safety rope can freely stretch out and draw back. And after the use, the permanent magnet can adsorb the pawl to reset the pawl.
3. The utility model discloses the mouth is taken out to casing bottom seted up, goes out to take the mouth to be used for stretching out of safety rope, goes out to take the mouth to be provided with the abrasionproof layer, and the abrasionproof layer is used for preventing the safety rope wearing and tearing. The anti-abrasion layer is made of flexible materials. Wear of the safety line may occur during use of the safety line, and the wear layer made of a flexible material, such as rubber, effectively prevents wear of the safety line.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the inside of the casing of the present invention;
FIG. 3 is a schematic view of the rotary rope winding device of the present invention;
fig. 4 is a schematic structural diagram of the locking device of the present invention;
FIG. 5 is a schematic structural view of the protective sheath of the present invention;
fig. 6 is a schematic structural view of the sliding plate of the present invention;
FIG. 7 is a schematic view of the ratchet according to the present invention;
fig. 8 is a schematic structural view of the tape outlet of the present invention.
In the figure, 1, a housing; 2. a rotary rope winding device; 3. a safety cord; 4. a locking device; 5. a sliding disk; 6. a pawl shaft; 7. a chute; 8. a pawl; 9. a ratchet; 10. a hoisting ring; 15. hanging the plate; 16. a bottom wall; 17. a connecting member; 18. a protective sleeve; 20. a permanent magnet; 29. a tape outlet; 30. an anti-wear layer; 32. and (5) locking.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, a speed difference safety catch comprises a housing 1, a rotary rope winding device 2 and a safety rope 3 wound on the rotary rope winding device 2 are arranged in the housing 1, one end of the safety rope 3 is connected with the rotary rope winding device 2, the other end of the safety rope 3 penetrates out of the housing 1, the tail end of the safety rope 3 is used for being connected with a human body, the rotary rope winding device 2 is used for enabling the safety rope 3 to freely stretch and retract along with the working movement of an operator, a locking device 4 is arranged on the rotary rope winding device 2, the locking device 4 is used for locking the safety rope 3 to prevent the operator from continuously dropping, the locking device 4 comprises a sliding disc 5 and a pawl shaft 6 arranged on the sliding disc 5, a sliding groove 7 is arranged on the sliding disc 5, the pawl shaft 7 is used for enabling the pawl shaft 6 to slide in the sliding groove 7, a protective sleeve 18 is sleeved on the pawl shaft, the ratchet shaft 6 can slide in the sliding groove 7, the ratchet shaft 6 is connected with a ratchet 8 rotating around the ratchet shaft 6, a ratchet 9 is arranged in the shell 1, the ratchet 8 is used for being clamped with the ratchet 9, and a hanging ring 10 used for fixing is arranged at the top of the shell 1.
In further detail, the protective sleeve 18 is made of a metal material. The protective sleeve 18 protects the detent shaft 6 well from wear, increasing the service life of the detent shaft 6.
In further detail, the protective sleeve 18 is located at the sliding connection of the chute 7 and the pawl shaft 6.
In more detail, the sliding disk 5 is divided into an upper disk 15 and a lower disk 16, the upper disk 15 and the lower disk 16 are connected through a connecting piece 17, the chute 7 is positioned on the upper disk 15 and the lower disk 16, and the pawl shaft 6 penetrates through the chute 7 of the upper disk 15 and the chute 7 of the lower disk 16.
More specifically, the sliding disk 5 is further provided with a permanent magnet 20, and the permanent magnet 20 is used for attracting the pawl 8. When the safety rope 3 is normally used and an operator does not fall from high altitude, the permanent magnet 20 adsorbs the pawl 8 so that the pawl 8 cannot be clamped with the ratchet 9, and the safety rope 3 can freely stretch out and draw back. And when the use is finished, the permanent magnet 20 can adsorb the pawl 8 to reset the pawl.
In more detail, the bottom of the housing 1 is provided with a belt outlet 29, and the belt outlet 29 is used for extending the safety rope 3. The belt outlet 29 is provided with an anti-wear layer 30, and the anti-wear layer 30 is used for preventing the safety rope 3 from being worn. The wear layer 30 is made of a flexible material. Wear of the safety line 3 may occur during use of the safety line 3, and the wear-resistant layer 30 made of a flexible material, such as rubber, is effective in preventing wear of the safety line 3.
In more detail, the end of the safety rope 3 is connected with a lock 32, and the lock 32 is used for buckling with a safety belt wound around a human body.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms housing 1, rotary roping 2, safety line 3, locking means 4, sliding disk 5, pawl 8 shaft 6, sliding slot 7, pawl 8, ratchet 9, lifting ring 10, upper disk 15, lower disk 16, connecting piece 17, protective sleeve 18, permanent magnet 20, tape outlet 29, wear protection 30, lock catch 32 etc. are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (9)
1. A speed difference falling protector is characterized by comprising a shell (1), wherein a rotary rope winding device (2) and a safety rope (3) wound on the rotary rope winding device (2) are arranged in the shell (1), one end of the safety rope (3) is connected with the rotary rope winding device (2), the other end of the safety rope (3) penetrates out of the shell (1), the tail end of the safety rope (3) is used for being connected with a human body, the rotary rope winding device (2) is used for enabling the safety rope (3) to freely stretch and retract when the safety rope moves along with the work of an operator, a locking device (4) is arranged on the rotary rope winding device (2), the locking device (4) is used for locking the safety rope (3) to prevent the operator from continuously falling down, and the locking device (4) comprises a sliding disc (5) and a pawl shaft (6) arranged on the sliding disc (5), the novel ratchet wheel is characterized in that a sliding groove (7) is formed in the sliding disc (5), the sliding groove (7) is used for enabling a pawl shaft (6) to slide in the sliding groove (7), a protective sleeve (18) is sleeved on the pawl shaft (6), the pawl shaft (6) can slide in the sliding groove (7), the pawl shaft (6) is connected with a pawl (8) rotating around the pawl shaft (6), a ratchet (9) is arranged in the shell (1), the pawl (8) is used for being clamped with the ratchet (9), and a hanging ring (10) used for fixing is arranged at the top of the shell (1).
2. A speed differential fall arrester as claimed in claim 1, characterized in that the protective casing (18) is made of a metallic material.
3. A speed differential fall arrester according to claim 1 characterized in that the protective sleeve (18) is located at the sliding connection of the chute (7) and the pawl shaft (6).
4. A speed difference fall arrester according to claim 2, characterized in that the sliding disk (5) is divided into an upper disk (15) and a lower disk (16), the upper disk (15) and the lower disk (16) are connected by a connecting member (17), the slide groove (7) is located on the upper disk (15) and the lower disk (16), and the pawl shaft (6) penetrates through the slide groove (7) of the upper disk (15) and the slide groove (7) of the lower disk (16).
5. A speed differential fall arrester as claimed in claim 1, characterized in that the sliding disk (5) is further provided with a permanent magnet (20), and the permanent magnet (20) is used for attracting the pawl (8).
6. A speed difference fall arrester according to claim 1, characterized in that the bottom of the housing (1) is provided with a belt outlet (29), and the belt outlet (29) is used for extending the safety rope (3).
7. A speed differential fall arrester as claimed in claim 6, characterized in that the belt outlet (29) is provided with an anti-wear layer (30), the anti-wear layer (30) being adapted to prevent wear of the safety line (3).
8. A speed differential fall arrester as claimed in claim 7, wherein the wear layer (30) is made of a flexible material.
9. The differential safety catcher as claimed in claim 1, wherein the end of the safety rope is connected with a lock catch, and the lock catch is used for being buckled with a safety belt wound on a human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920104923.XU CN210020908U (en) | 2019-01-22 | 2019-01-22 | Speed difference falling protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920104923.XU CN210020908U (en) | 2019-01-22 | 2019-01-22 | Speed difference falling protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210020908U true CN210020908U (en) | 2020-02-07 |
Family
ID=69352114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920104923.XU Active CN210020908U (en) | 2019-01-22 | 2019-01-22 | Speed difference falling protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210020908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956967A (en) * | 2020-08-20 | 2020-11-20 | 杭州合泰安防科技有限公司 | Falling protector |
-
2019
- 2019-01-22 CN CN201920104923.XU patent/CN210020908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956967A (en) * | 2020-08-20 | 2020-11-20 | 杭州合泰安防科技有限公司 | Falling protector |
| CN111956967B (en) * | 2020-08-20 | 2021-11-05 | 杭州合泰安防科技有限公司 | Falling protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 321000 No. 1448, Tongxi Road, bailongqiao Town, Wucheng District, Jinhua City, Zhejiang Province Patentee after: JINHUA JECH TOOLS Co.,Ltd. Address before: 321025 No.10, Jinlong Road, bailongqiao Town, Wucheng District, Jinhua City, Zhejiang Province Patentee before: JINHUA JECH TOOLS Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A speed difference anti falling device Effective date of registration: 20211126 Granted publication date: 20200207 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch Pledgor: JINHUA JECH TOOLS Co.,Ltd. Registration number: Y2021980013274 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230526 Granted publication date: 20200207 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch Pledgor: JINHUA JECH TOOLS Co.,Ltd. Registration number: Y2021980013274 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A speed difference anti fall device Effective date of registration: 20230927 Granted publication date: 20200207 Pledgee: Bank of Jinhua Limited by Share Ltd. Wucheng branch Pledgor: JINHUA JECH TOOLS Co.,Ltd. Registration number: Y2023980059586 |