CN220956527U - Pawl with two-way braking mechanism - Google Patents
Pawl with two-way braking mechanism Download PDFInfo
- Publication number
- CN220956527U CN220956527U CN202322842314.3U CN202322842314U CN220956527U CN 220956527 U CN220956527 U CN 220956527U CN 202322842314 U CN202322842314 U CN 202322842314U CN 220956527 U CN220956527 U CN 220956527U
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- China
- Prior art keywords
- pawl
- ratchet
- assembly
- rocker
- braking mechanism
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- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 230000002457 bidirectional effect Effects 0.000 abstract description 9
- 238000005457 optimization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model relates to a pawl of a braking mechanism, in particular to a pawl with a bidirectional braking mechanism, which comprises a pawl structure component, wherein the pawl structure component comprises a base plate, an ear plate, a rocker component and a ratchet component, the two ratchet components are arranged on the outer walls of two sides of the base plate through bearings, the rocker component passes through the two ratchet components, the rocker component comprises a connecting shaft, a rocker, a limit bolt, a gear, a top block, a rack plate and a limit component, the two rockers are arranged at two ends of the connecting shaft through bolts, and the two limit components are respectively arranged on the outer wall of one side of the rocker through bolts; when the rotating direction of the pawl ratchet structure is changed, the mounting screws on the two limiting assemblies can be rotated, so that the limiting piece on one limiting assembly is retracted into the shell, and the limiting piece on the other limiting assembly is inserted into the ratchet piece in a sliding manner, so that the rotating direction of the pawl ratchet structure is changed, and the bidirectional braking capability of the pawl is realized.
Description
Technical Field
The utility model relates to a pawl of a braking mechanism, in particular to a pawl with a bidirectional braking mechanism, and belongs to the technical field of ratchet structures.
Background
The pawl is a part in the ratchet structure and can stir the ratchet to do intermittent motion, and the pawl is driven by the connecting rod to do reciprocating motion, so that the ratchet is driven to do unidirectional motion. The structure part is used for clamping the ratchet wheel to enable the ratchet wheel to move unidirectionally and lock reversely.
Chinese patent No. CN217519099U provides a ratchet pawl device, concretely relates to ratchet pawl device field, including the mount pad, one side of mount pad is provided with the pull rod, the top of mount pad is provided with the pawl, the inside top fixed mounting of mount pad has the fixed axle. According to the utility model, the ratchet wheel, the pawl, the pull rod and the mounting seat are arranged, when the ratchet wheel and the pawl device are closed, the pull rod is required to be pulled upwards to drive the pawl at one end to rotate along the fixed shaft, the pawl is buckled on the surface of the ratchet wheel, so that the ratchet wheel and the pawl device are in a closed state, the safety operation of equipment is ensured and the reversion is prevented through the closing of the ratchet wheel and the pawl, the slide rod slides along the slide groove in the pulling process of the pull rod, and when the limit groove at the other end of the slide groove slides by the slide rod, the spring automatically pulls the inner rod inwards to drive the limit block to be inserted into the limit groove, the limit is carried out on the pull rod, and the stability of the closed state of the ratchet wheel and the pawl is ensured.
However, in the above case, although the stability of the closing state of the ratchet and the pawl is ensured, in general, the ratchet mechanism is used for completing unidirectional intermittent motion, so as to play a role in preventing reversion, and the bidirectional ratchet mechanism can realize rotation of the ratchet in two directions by changing the swinging direction of the pawl, but has a complex structure and is not convenient to operate.
The present utility model has been made in view of this.
Disclosure of utility model
The present utility model aims to solve the above problems by providing a pawl with a bi-directional braking mechanism.
The utility model realizes the aim through the following technical scheme that the pawl with the bidirectional braking mechanism comprises a pawl structure component, wherein the pawl structure component comprises a base plate, an ear plate, a rocker component and a ratchet component, the two ratchet components are arranged on the outer walls of two sides of the base plate through bearings, the rocker component passes through the two ratchet components, the rocker component comprises a connecting shaft, a rocker, a limit bolt, a gear, a top block, a rack plate and a limit component, the two rockers are arranged at two ends of the connecting shaft through bolts, the two limit components are respectively arranged on the outer wall of one side of the rocker through bolts, the limit component comprises a shell, a mounting screw rod, a spring, a limit piece and a mounting seat, the mounting screw rod is in threaded insertion connection with the outer wall of one end of the shell, the mounting seat is arranged at one end of the mounting screw rod through a bearing, the spring is arranged on the outer wall of one side of the mounting seat through a bolt, the limit piece is arranged at the other end of the spring through a bolt, and the limit piece passes through the shell.
Furthermore, grooves distributed in an annular structure at equal distances are formed in the positions, close to the two ends, of the outer wall of the side face of the connecting shaft, and the top block is slidably connected inside the grooves.
Furthermore, the mounting grooves are formed in the two ends of the connecting shaft, the limiting bolts are connected between the two rocking bars in a threaded mode, and the limiting bolts penetrate through the mounting grooves.
Further, two gears are welded on the outer wall of the side face of the limit bolt, and the two gears are respectively located in the placement groove.
Further, the rack plate is welded on the outer wall of one side of the top block, and the gear and the rack plate are meshed with each other.
Further, the ratchet assembly comprises a ratchet part, a mounting groove is formed in one end of the ratchet part, and the connecting shaft penetrates through the mounting groove.
Furthermore, limit grooves distributed in an annular structure at equal distances are formed in the inner walls of the side faces of the mounting grooves, and the ejector blocks are inserted into the limit grooves.
Further, the four ear plates are integrally formed on the outer wall of the side face of the base plate, and through holes are formed in the outer wall of one side of each ear plate.
The utility model has the technical effects and advantages that: (1) Through the limiting assemblies, when the rotating direction of the pawl and ratchet structure needs to be changed, the mounting screws on the two limiting assemblies can be rotated, so that the limiting piece on one limiting assembly is retracted into the shell, and the limiting piece on the other limiting assembly is slidably inserted into the ratchet piece, so that the rotating direction of the pawl and ratchet structure is changed, and the capability of bidirectional braking of the pawl is realized; (2) Through the ejector block, when the rocker assembly is disassembled and assembled, the limit bolt can be rotated, so that the gear moves along with the rack plate, the ejector block is retracted into the groove, the ejector block is separated from the limit groove, the limitation between the rocker assembly and the ratchet wheel piece is released, and then the quick disassembly and assembly of the rocker assembly can be realized by unscrewing the bolt of the rocker; (3) The pawl has a simple structure, is convenient to operate, can realize rotation of the ratchet wheel in two directions, and improves the practicability of the pawl structure.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a ratchet assembly according to the present utility model;
FIG. 3 is a schematic view of a rocker assembly according to the present utility model;
FIG. 4 is a schematic plan view of a rocker and connecting shaft according to the present utility model;
FIG. 5 is a schematic side view of the connecting shaft of the present utility model;
Fig. 6 is a schematic structural diagram of a limiting assembly according to the present utility model.
In the figure: 100. a pawl structural assembly; 101. a substrate; 102. ear plates; 103. a through hole; 200. a rocker assembly; 201. a connecting shaft; 202. a rocker; 203. a limit bolt; 204. a placement groove; 205. a groove; 206. a gear; 207. a top block; 208. rack plate; 300. a limit component; 301. a housing; 302. installing a screw; 303. a spring; 304. a limiting piece; 305. a mounting base; 400. a ratchet assembly; 401. a ratchet member; 402. a mounting groove; 403. and a limit groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, a pawl with a bidirectional brake mechanism includes a pawl structure assembly 100, the pawl structure assembly 100 includes a base plate 101, ear plates 102, a rocker assembly 200 and a ratchet assembly 400, the two ratchet assemblies 400 are installed on two outer walls of the base plate 101 through bearings, the rocker assembly 200 passes through the two ratchet assemblies 400, the rocker assembly 200 includes a connecting shaft 201, a rocker 202, a limit bolt 203, a gear 206, a top block 207, a rack plate 208 and a limit assembly 300, when the rocker assembly 200 is disassembled, the limit bolt 203 can be rotated, the gear 206 moves with the rack plate 208, the top block 207 retracts into the groove 205, the top block 207 is separated from the limit groove 403, the limit between the rocker assembly 200 and the ratchet assembly 401 is released, then the two rockers 202 are installed at two ends of the connecting shaft 201 through bolts, the side outer walls of the connecting shaft 201 are provided with grooves 205 distributed in an annular structure at equal distance, the two ends of the connecting shaft 201 are provided with grooves 204, the two ends of the connecting shaft 201 are provided with the two grooves 204, the two end of the connecting shaft 203 are provided with the two grooves 206 are welded on the two side walls of the rack plate 206, and the two end grooves 206 are welded with the two end grooves 206 are respectively.
As a technical optimization scheme of the utility model, two limiting components 300 are respectively arranged on the outer wall of one side of a rocker 202 through bolts, each limiting component 300 comprises a shell 301, a mounting screw 302, a spring 303, a limiting piece 304 and a mounting seat 305, the mounting screw 302 is in threaded connection with the outer wall of one end of the shell 301, the mounting seat 305 is arranged at one end of the mounting screw 302 through a bearing, the spring 303 is arranged on the outer wall of one side of the mounting seat 305 through bolts, the limiting piece 304 is arranged at the other end of the spring 303 through bolts, the limiting piece 304 penetrates through the shell 301, the rocker 202 is rotated to enable the ratchet component 400 to rotate, at the moment, under the limit of one limiting component 300, the ratchet component 400 can only rotate in one direction, then when the ratchet component needs to rotate in the replacement direction, the mounting screw 302 on the two limiting components 300 can be rotated, so that the mounting seat 305 is lifted in the shell 301, the mounting seat 305 is enabled to change positions with the spring 303, the limiting piece 304 on one limiting component 300 is retracted into the shell 301, the limiting piece 304 on the other limiting component 300 is enabled to be slidably inserted into the ratchet component 401, and the bidirectional braking capability is realized.
As a technical optimization scheme of the utility model, the ratchet assembly 400 comprises a ratchet member 401, one end of the ratchet member 401 is provided with a mounting groove 402, the connecting shaft 201 passes through the mounting groove 402, the inner wall of the side surface of the mounting groove 402 is provided with limit grooves 403 distributed in an equidistant annular structure, the limit grooves 403 are convenient for inserting the top block 207 on the inner wall of the mounting groove 402, and the top block 207 is inserted into the limit grooves 403.
As a technical optimization scheme of the utility model, four ear plates 102 are integrally formed on the side outer wall of a base plate 101, through holes 103 are formed in the outer wall of one side of the ear plate 102, and the through holes 103 facilitate bolts to pass through the ear plate 102, so that the base plate 101 can be fixed on a corresponding structure.
When the utility model is used, the rocker 202 can be rotated to enable the ratchet wheel assembly 400 to rotate, at the moment, under the limit of one limiting assembly 300, the ratchet wheel assembly 400 can only rotate in one direction, then when the ratchet wheel assembly is required to rotate in the replacement direction, the mounting screw rods 302 on the two limiting assemblies 300 can be rotated, the mounting seat 305 is lifted in the shell 301, the mounting seat 305 is enabled to change the position with the spring 303, the limiting piece 304 on one limiting assembly 300 is enabled to retract into the shell 301, the limiting piece 304 on the other limiting assembly 300 is enabled to be slidably inserted into the ratchet wheel piece 401, the limitation on the rotation direction of the ratchet wheel assembly 400 in the other direction is realized, and the pawl has the capability of bidirectional braking; then, when the rocker assembly 200 is disassembled and assembled, the limit bolt 203 can be rotated, the gear 206 moves along with the rack plate 208, the top block 207 is retracted into the groove 205, the top block 207 is separated from the limit groove 403, the limit between the rocker assembly 200 and the ratchet wheel 401 is released, and then the quick disassembly and assembly of the rocker assembly 200 can be realized by unscrewing the bolt of the rocker 202.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. A pawl with a bi-directional braking mechanism, comprising a pawl structure assembly (100), characterized in that: the pawl structure assembly (100) comprises a base plate (101), an ear plate (102), a rocker assembly (200) and a ratchet assembly (400), wherein the two ratchet assemblies (400) are installed on the outer walls of two sides of the base plate (101) through bearings, the rocker assembly (200) passes through the two ratchet assemblies (400), the rocker assembly (200) comprises a connecting shaft (201), a rocker (202), a limit bolt (203), a gear (206), a top block (207), a rack plate (208) and a limit assembly (300), the two rockers (202) are installed at two ends of the connecting shaft (201) through bolts, the two limit assemblies (300) are installed on the outer walls of one side of the rocker (202) through bolts respectively, the limit assembly (300) comprises a shell (301), a mounting screw (302), a spring (303), a limit piece (304) and a mounting seat (305), the mounting screw (302) is connected on the outer wall of one end of the shell (301) through the bearings, the spring (303) is installed on one end of the mounting screw (302) through the outer wall of the mounting seat (305) through the other end of the mounting seat (305) through bolts, the limiting piece (304) penetrates through the shell (301).
2. A pawl with a bi-directional braking mechanism as set forth in claim 1 wherein: grooves (205) distributed in an annular structure at equal distances are formed in the positions, close to two ends, of the outer wall of the side face of the connecting shaft (201), and the top block (207) is connected inside the grooves (205) in a sliding mode.
3. A pawl with a bi-directional braking mechanism as set forth in claim 1 wherein: the two ends of the connecting shaft (201) are provided with mounting grooves (204), the limiting bolts (203) are connected between the two rockers (202) in a threaded mode, and the limiting bolts (203) penetrate through the mounting grooves (204).
4. A pawl with a bi-directional braking mechanism as set forth in claim 3 wherein: the two gears (206) are welded on the side outer wall of the limit bolt (203), and the two gears (206) are respectively positioned in the placement groove (204).
5. A pawl with a bi-directional braking mechanism as set forth in claim 1 wherein: the rack plate (208) is welded on the outer wall of one side of the top block (207), and the gear (206) is meshed with the rack plate (208).
6. A pawl with a bi-directional braking mechanism as set forth in claim 1 wherein: the ratchet assembly (400) comprises a ratchet part (401), a mounting groove (402) is formed in one end of the ratchet part (401), and the connecting shaft (201) penetrates through the mounting groove (402).
7. A pawl with a bi-directional braking mechanism as set forth in claim 6 wherein: limiting grooves (403) distributed in an annular structure at equal distances are formed in the inner walls of the side faces of the mounting grooves (402), and the top blocks (207) are inserted into the limiting grooves (403).
8. A pawl with a bi-directional braking mechanism as set forth in claim 1 wherein: the four lug plates (102) are integrally formed on the side outer wall of the base plate (101), and through holes (103) are formed in the outer wall of one side of each lug plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322842314.3U CN220956527U (en) | 2024-04-01 | 2024-04-01 | Pawl with two-way braking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322842314.3U CN220956527U (en) | 2024-04-01 | 2024-04-01 | Pawl with two-way braking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956527U true CN220956527U (en) | 2024-05-14 |
Family
ID=91020514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322842314.3U Active CN220956527U (en) | 2024-04-01 | 2024-04-01 | Pawl with two-way braking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956527U (en) |
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2024
- 2024-04-01 CN CN202322842314.3U patent/CN220956527U/en active Active
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| GR01 | Patent grant |