CN212076269U

CN212076269U - Reversing ratchet wheel for hand hoist

Info

Publication number: CN212076269U
Application number: CN202020399187.8U
Authority: CN
Inventors: 张子海
Original assignee: Chongqing Beibei Sanxia Precise Casting Co ltd
Current assignee: Chongqing Beibei Sanxia Precise Casting Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-04
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a reversing ratchet wheel for a hand hoist, which comprises a limiting mechanism and a mounting box, the ratchet wheel is set to be arranged and mounted in a plurality of groups to form a whole, the side end of a transmission shaft is movably connected with the ratchet wheel through a communicating cavity, the other end of the transmission shaft is connected with an external motor, the transmission shaft is driven to rotate by the external motor, thereby driving the ratchet wheel to rotate at a constant speed, the first contact block and the second contact block are set to be installed oppositely, when the ratchet wheel rotates, the front ends of the first contact block and the second contact block penetrate through the annular hollow hole, the whole device is limited, the installation angle of the annular hollow hole is adjusted according to requirements, when the ratchet wheel rotates reversely, the anti-reverse inclined plate limits the ratchet wheel to avoid the reverse rotation of the ratchet wheel, thereby achieving the purpose of limiting the ratchet wheel, and the rear end of the transmission shaft penetrates through the through hole and the inner cavity of the serial hole to form a whole.

Description

Reversing ratchet wheel for hand hoist

Technical Field

The utility model relates to a hand block technical field specifically is a hand block is with switching-over ratchet.

Background

The chain block is also called a fairy block, a chain block, a manual block, is a manual hoisting machine which is simple to use and convenient to carry, and is also called a 'chain block' or a 'chain block'. The lifting device is suitable for short-distance lifting of small equipment and goods, the lifting capacity generally does not exceed 10T, the maximum lifting capacity can reach 20T, and the lifting height generally does not exceed 6 m. The shell of the chain block is made of high-quality alloy steel, and is firm, wear-resistant and high in safety performance. When the chain block lifts the heavy object upwards, the hand chain is pulled clockwise and the hand chain wheel rotates, when the chain block descends, the hand chain is pulled anticlockwise, the brake seat is separated from the brake pad, the ratchet wheel is static under the action of the pawl, and the five-tooth long shaft drives the hoisting chain wheel to run in the opposite direction, so that the heavy object is lifted stably.

In the working process of the hand-operated hoist, the reversing ratchet wheel is an indispensable device, and most of the reversing ratchet wheels on the current market have the problems of poor device maneuverability, nonadjustable ratchet wheels and pawls and poor device practicability.

Aiming at the problems, in order to improve the maneuverability of a diamond net machine, the adjustability of a ratchet wheel and a pawl and the practicability of the device, a reversing ratchet wheel for a hand-driven hoist is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand-operated hoist is with switching-over ratchet, including stop gear and mounting box, the ratchet is set for the installation of multiunit range, become a whole, the side installation of transmission shaft is through intercommunication chamber and ratchet swing joint, the other end of transmission shaft connects external motor, drive the transmission shaft through external motor and rotate, thereby drive the ratchet and rotate at the uniform velocity, first contact piece and second contact piece are set for each other and are installed in opposite directions, when the ratchet rotates, first contact piece and second contact piece front end pierce through annular hole, spacing to whole device, adjust the installation angle of annular hole according to the demand, when the ratchet rotates in reverse direction, refuse anti-swash plate to restrict it, avoid it to overturn, thereby reach the spacing purpose to the ratchet, the transmission shaft rear end runs through hole and the inner chamber of series connection hole, make it become a whole, the maneuverability, the ratchet wheel and the pawl can be adjusted and the practicability of the device is improved, and the problems in the background art are solved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a switching-over ratchet for hand hoist, includes stop gear and mounting box, and the mounting box is installed to stop gear's rear end, stop gear includes ratchet, transmission shaft and pawl, the transmission shaft is installed to the centre of ratchet, the pawl is installed to the rear end of ratchet, the mounting box is installed to the outer end of pawl, box and side opening in the mounting box includes box body, box inner chamber, installation, box inner chamber has been seted up to the inner chamber of box body, box in the installation is installed at box inner chamber's inner wall both ends, the side opening has been seted up in the front of box body.

Further, the ratchet wheel comprises a wheel body, an inner mounting plate, annular holes and a communicating cavity, the inner mounting plate is mounted at the inner end of the wheel body, the annular holes are formed in the surface of the inner mounting plate in an annular arrangement mode, and the communicating cavity is formed in the middle end of the inner mounting plate.

Further, the annular hole comprises a side mounting block, a mounting inclined plate and a reflection resisting inclined plate, the mounting inclined plate is mounted at the side end of the side mounting block, and the reflection resisting inclined plate is mounted at the upper end of the mounting inclined plate.

Further, the pawl comprises a semi-ring plate, a first contact block, a second contact block, a through hole and a connecting mechanism, wherein the first contact block is installed at one end of the semi-ring plate, the second contact block is installed at the other end of the semi-ring plate, the through hole is formed in the side end of the semi-ring plate, and the connecting mechanism is installed between the semi-ring plates in a penetrating mode.

Further, coupling mechanism includes external connection piece, inscription installation piece, connecting rod, well even piece and series connection hole, the inscription installation piece is installed to the inner of external connection piece, the connecting rod is installed to the inner of inscription installation piece, even piece is installed in the centre of connecting rod, the series connection hole has been seted up to the side of well even piece.

Furthermore, the two ends of the external connecting block are placed in the inner cavity of the mounting inner box, so that the connecting mechanism is movably connected with the mounting box to form a whole.

Further, the first contact block and the second contact block are set to be installed oppositely.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a hand hoist is with switching-over ratchet, ratchet are set for the multiunit and are arranged the installation, become a whole, and the side installation of transmission shaft is through intercommunication chamber and ratchet swing joint, and external motor is connected to the other end of transmission shaft, drives the transmission shaft through external motor and rotates to it is rotatory at the uniform velocity to drive the ratchet.

2. The utility model provides a hand hoist is with switching-over ratchet, first contact piece and second contact piece are set for each other and are installed for mutually opposite, and when the ratchet was rotatory, first contact piece and second contact piece front end pierce through annular dead hole, carry on spacingly to integrated device, adjust the installation angle of annular dead hole according to the demand, when the ratchet carries out reverse rotation, refuse anti-swash plate to restrict it, avoid it to overturn to reach the spacing purpose of ratchet.

3. The utility model provides a hand block is with switching-over ratchet, transmission shaft rear end run through hole and series connection downthehole chamber, make it become a whole.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the ratchet structure of the present invention;

FIG. 3 is a schematic view of the pawl structure of the present invention;

FIG. 4 is a schematic view of the annular cavity structure of the present invention;

fig. 5 is a schematic structural diagram of the mounting box of the present invention.

In the figure: 1. a limiting mechanism; 11. a ratchet wheel; 111. a wheel body; 112. an inner mounting plate; 113. an annular void; 1131. a side mounting block; 1132. installing an inclined plate; 1133. a rejection swash plate; 114. a communicating cavity; 12. a drive shaft; 13. a pawl; 131. a semi-annular plate; 132. a first contact block; 133. a second contact block; 134. a through hole; 135. a connecting mechanism; 1351. an external connection block; 1352. an installation block is internally connected; 1353. a communication rod; 1354. a middle connecting block; 1355. holes are connected in series; 2. mounting a box; 21. a box body; 22. the inner cavity of the box body; 23. installing an inner box; 24. and (6) side opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a reversing ratchet wheel for a chain block comprises a limiting mechanism 1 and a mounting box 2, the mounting box 2 is mounted at the rear end of the limiting mechanism 1, the limiting mechanism 1 comprises a ratchet wheel 11, a transmission shaft 12 and a pawl 13, the transmission shaft 12 is mounted in the middle of the ratchet wheel 11, the ratchet wheel 11 comprises a wheel body 111, an inner mounting plate 112, an annular hollow 113 and a communicating cavity 114, the inner mounting plate 112 is mounted at the inner end of the wheel body 111, the annular hollow 113 is annularly arranged on the surface of the inner mounting plate 112 and is provided with the annular hollow 113, the annular hollow 113 comprises a side mounting block 1131, a mounting inclined plate 1132 and a reaction resisting inclined plate 1133, the mounting inclined plate 1132 is mounted at the side end of the side mounting block 1131, the reaction resisting inclined plate 1133 is mounted at the upper end of the mounting inclined plate 1132, the communicating cavity 114 is provided at the middle end of the inner mounting plate 112, the pawl 13 is mounted at the, A through hole 134 and a connecting mechanism 135, wherein one end of the half ring plate 131 is provided with a first contact block 132, the other end of the half ring plate 131 is provided with a second contact block 133, the first contact block 132 and the second contact block 133 are set to be installed oppositely, the side end of the half ring plate 131 is provided with the through hole 134, the connecting mechanism 135 is installed between the half ring plates 131 in a penetrating way, the connecting mechanism 135 comprises an external connecting block 1351, an internal connecting block 1352, a communicating rod 1353, a middle connecting block 1354 and a series hole 1355, the internal connecting block 1352 is installed at the inner end of the external connecting block 1351, the two ends of the external connecting block 1351 are placed in the inner cavity of the installation inner box 23, so that the connecting mechanism 135 and the installation box 2 are movably connected to form a whole, the internal connecting block 1352 is installed at the inner end of the internal connecting block 1353, the middle connecting block 1354 is installed at the middle of the communicating rod 1353, the series hole 1355 is, the side end of the transmission shaft 12 is movably connected with the ratchet wheel 11 through the communicating cavity 114, the other end of the transmission shaft 12 is connected with an external motor, the transmission shaft 12 is driven to rotate through the external motor, so as to drive the ratchet wheel 11 to rotate at a constant speed, the first contact block 132 and the second contact block 133 are set to be installed oppositely, when the ratchet wheel 11 rotates, the front ends of the first contact block 132 and the second contact block 133 penetrate through the annular hollow hole 113 to limit the whole device, the outer end of the pawl 13 is provided with the installation box 2, the installation box 2 comprises a box body 21, a box inner cavity 22, an installation inner box 23 and a side opening 24, the inner cavity of the box body 21 is provided with a box inner cavity 22, the two ends of the inner wall of the box inner cavity 22 are provided with the installation inner box 23, the front surface of the box body 21 is provided with the side opening 24, the installation angle of the annular hollow hole 113 is adjusted according to requirements, the ratchet wheel 11 is prevented from being reversed, so that the purpose of limiting the ratchet wheel 11 is achieved, and the rear end of the transmission shaft 12 penetrates through the through hole 134 and the inner cavity of the series hole 1355 to form a whole.

In summary, the following steps: the utility model provides a reversing ratchet wheel for a hand hoist, the ratchet wheel 11 is designed to be arranged and installed in a plurality of groups to form a whole, the side end of a transmission shaft 12 is movably connected with the ratchet wheel 11 through a communicating cavity 114, the other end of the transmission shaft 12 is connected with an external motor, the transmission shaft 12 is driven to rotate by the external motor, thereby driving the ratchet wheel 11 to rotate at a constant speed, the first contact block 132 and the second contact block 133 are set to be installed oppositely, when the ratchet 11 rotates, the front ends of the first contact block 132 and the second contact block 133 penetrate the annular hollow 113, the whole device is limited, the installation angle of the annular hollow hole 113 is adjusted according to the requirement, when the ratchet 11 rotates in the reverse direction, the anti-reverse swash plate 1133 restricts it to prevent it from reversing, thereby achieving the purpose of limiting the ratchet wheel 11, and the rear end of the transmission shaft 12 penetrates through the through hole 134 and the inner cavity of the series hole 1355 to form a whole.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hand hoist is with switching-over ratchet, includes stop gear (1) and mounting box (2), its characterized in that are installed to the rear end of stop gear (1): stop gear (1) includes ratchet (11), transmission shaft (12) and pawl (13), transmission shaft (12) are installed to the centre of ratchet (11), pawl (13) are installed to the rear end of ratchet (11), mounting box (2) are installed to the outer end of pawl (13), mounting box (2) are box (23) and side opening (24) in box body (21), box body inner chamber (22), the installation, box body inner chamber (22) have been seted up to the inner chamber of box body (21), box (23) in the installation is installed at the inner wall both ends of box body inner chamber (22), side opening (24) have been seted up in the front of box body (21).

2. The reversing ratchet wheel for the hand hoist according to claim 1, characterized in that: ratchet (11) are including wheel body (111), interior mounting panel (112), annular vacancy (113) and intercommunication chamber (114), mounting panel (112) in the inner of wheel body (111) is installed, annular vacancy (113) have been seted up to the surperficial annular of interior mounting panel (112), intercommunication chamber (114) have been seted up to the middle-end of interior mounting panel (112).

3. The reversing ratchet wheel for the hand hoist according to claim 2, characterized in that: annular hole (113) include side installation piece (1131), installation swash plate (1132) and refuse anti-swash plate (1133), installation swash plate (1132) are installed to the side of side installation piece (1131), refuse anti-swash plate (1133) are installed to the upper end of installation swash plate (1132).

4. The reversing ratchet wheel for the hand hoist according to claim 1, characterized in that: pawl (13) are including semi-ring plate (131), first contact piece (132), second contact piece (133), through-hole (134) and coupling mechanism (135), first contact piece (132) are installed to the one end of semi-ring plate (131), second contact piece (133) are installed to the other end of semi-ring plate (131), through-hole (134) have been seted up to the side of semi-ring plate (131), through mounting has coupling mechanism (135) between semi-ring plate (131).

5. The reversing ratchet wheel for the hand hoist according to claim 4, characterized in that: the connecting mechanism (135) comprises an external connecting block (1351), an internal connecting mounting block (1352), a communicating rod (1353), a middle connecting block (1354) and a series hole (1355), the internal connecting mounting block (1352) is mounted at the inner end of the external connecting block (1351), the communicating rod (1353) is mounted at the inner end of the internal connecting mounting block (1352), the middle connecting block (1354) is mounted in the middle of the communicating rod (1353), and the series hole (1355) is formed in the side end of the middle connecting block (1354).

6. The reversing ratchet wheel for the hand hoist according to claim 5, characterized in that: the two ends of the external connecting block (1351) are arranged in the inner cavity of the mounting inner box (23), so that the connecting mechanism (135) is movably connected with the mounting box (2) to form a whole.

7. The reversing ratchet wheel for the hand hoist according to claim 4, characterized in that: the first contact block (132) and the second contact block (133) are configured to be mounted opposite to each other.