CN217519099U

CN217519099U - Ratchet pawl device

Info

Publication number: CN217519099U
Application number: CN202221476797.9U
Authority: CN
Inventors: 孙玉生; 张福忠; 刘立国; 齐日
Original assignee: Dalian Binglin Heavy Industry Co ltd
Current assignee: Dalian Binglin Heavy Industry Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-09-30
Anticipated expiration: 2032-06-14

Abstract

The embodiment of the utility model discloses ratchet pawl device, concretely relates to ratchet pawl device field, which comprises a mounting bas, 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. The utility model discloses a set up the ratchet, the pawl, pull rod and mount pad, when closing ratchet pawl device, need upwards stimulate the pull rod, the pawl that drives one end rotates along the fixed axle, detain the pawl on the surface of ratchet, make ratchet pawl device be in closed state, guarantee equipment safety operation through the closure of ratchet and pawl, prevent to reverse, the pull rod can slide along the spout at the in-process slide bar of pulling, when the spacing groove of the other end of the gliding spout of slide bar, the spring can be automatic with interior pole pulling inwards, it inserts the spacing inslot to drive the stopper, it is spacing to carry out the pull rod, guarantee the stability of the closed state of ratchet and pawl.

Description

Ratchet pawl device

Technical Field

The embodiment of the utility model provides a ratchet pawl device field, concretely relates to ratchet pawl device.

Background

Along with the continuous development of economy, urban buildings are continuously increased, in some large-scale building projects, a large number of large-scale cranes are needed, the building materials of the large-scale cranes which need to move are heavy, and the crane luffing mechanism is easy to reverse, so that certain safety is lacked.

Disclosure of Invention

Therefore, the embodiment of the utility model provides a ratchet pawl device, through the ratchet, the pawl, pull rod and mount pad, when closing ratchet pawl device, need upwards stimulate the pull rod, the pawl that drives one end rotates along the fixed axle, detain the pawl on the surface of ratchet, make ratchet pawl device be in closed state, guarantee equipment safe operation through the closure of ratchet and pawl, prevent to reverse, the pull rod can slide along the spout at the in-process slide bar of pulling, when the spacing groove of the other end of the gliding spout of slide bar, the spring can be automatic with the inside pulling of interior pole, it inserts the spacing inslot to drive the stopper, it is spacing to the pull rod, guarantee the stability of the closed state of ratchet and pawl, with solve among the prior art because the easy problem that reverses of appearing of hoist luffing mechanism.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a ratchet pawl device, includes 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, the bottom of pawl and the one end fixed connection of pull rod, the pawl passes through fixed axle and mount pad swing joint with the pull rod, one side of mount pad is provided with the ratchet, the outer fixed surface of ratchet installs the anti-shear pin, the top of pawl and the surface phase-match of anti-shear pin.

Furthermore, a sliding groove is formed in one side, located on the pull rod, of the outer surface of the mounting seat, and limiting grooves are formed in two ends of the sliding groove.

Furthermore, the sliding groove is communicated with the limiting grooves at two ends, and the sliding groove is arc-shaped.

Furthermore, a sliding rod is arranged on the outer surface of one side of the pull rod, and a limiting block is fixedly mounted at one end of the sliding rod.

Furthermore, the slide bar is matched with the sliding groove, the pull rod is connected with the mounting seat in a sliding mode through the slide bar, and one end of the limiting block is matched with the limiting groove.

Furthermore, a guide rod is arranged inside the slide rod, one end of the guide rod is fixedly connected with the outer surface of the pull rod, the slide rod is connected with the guide rod in a sliding mode, and an inner rod is arranged inside the guide rod.

Further, the one end and the stopper fixed connection of interior pole, the inside one end fixed mounting of guide arm has the fender ring, keep off the ring cover and establish the surface at interior pole, one side cover that the surface of interior pole is located the fender ring is equipped with the spring, the one end fixed mounting of interior pole has the dog.

The embodiment of the utility model provides a have following advantage:

through setting up the ratchet, the pawl, pull rod and mount pad, when closing ratchet pawl device, need upwards stimulate the pull rod, the pawl that drives one end rotates along the fixed axle, detain the pawl on the surface of ratchet, make ratchet pawl device be in the closed state, guarantee equipment safe operation through the closure of ratchet and pawl, prevent to reverse, the pull rod can slide along the spout at the in-process slide bar of pulling, when the spacing groove of the other end of the gliding spout of slide bar, the spring can be automatic inwards stimulates interior pole, drive the stopper and insert the spacing inslot, it is spacing to carry out the pull rod, guarantee the stability of the closed state of ratchet and pawl.

Drawings

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

FIG. 2 is a structural diagram of the ratchet and pawl of the present invention in an open state;

fig. 3 is a side view of the mounting base of the present invention;

FIG. 4 is a schematic structural view of the pull rod of the present invention;

fig. 5 is a cross-sectional view of the slide bar of the present invention.

In the figure: 1. a mounting seat; 2. a pull rod; 3. a pawl; 4. a fixed shaft; 5. a ratchet wheel; 6. a shear pin; 7. a chute; 8. a limiting groove; 9. a slide bar; 10. a limiting block; 11. a guide bar; 12. an inner rod; 13. a baffle ring; 14. a spring; 15. and a stop block.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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 the attached drawings 1-5 in the specification, the ratchet and pawl device of the embodiment comprises an installation seat 1, a pull rod 2 is arranged on one side of the installation seat 1, a pawl 3 is arranged at the top end of the installation seat 1, a fixed shaft 4 is fixedly installed at the top end inside the installation seat 1, the bottom end of the pawl 3 is fixedly connected with one end of the pull rod 2, the pawl 3 and the pull rod 2 are movably connected with the installation seat 1 through the fixed shaft 4, a ratchet wheel 5 is arranged on one side of the installation seat 1, a shear pin 6 is fixedly installed on the outer surface of the ratchet wheel 5, and the top end of the pawl 3 is matched with the outer surface of the shear pin 6.

Furthermore, the outer surface of the mounting base 1 is provided with a sliding groove 7 at one side of the pull rod 2, two ends of the sliding groove 7 are provided with limiting grooves 8, the sliding groove 7 is communicated with the limiting grooves 8 at two ends, the sliding groove 7 is arc-shaped, the pull rod 2 is pulled, and the slide rod 9 of the pull rod 2 can slide along the sliding groove 7 in the pulling process.

Further, a sliding rod 9 is arranged on the outer surface of one side of the pull rod 2, a limiting block 10 is fixedly mounted at one end of the sliding rod 9, the sliding rod 9 is matched with the sliding groove 7, the pull rod 2 is connected with the mounting seat 1 in a sliding mode through the sliding rod 9, one end of the limiting block 10 is matched with the limiting groove 8, and before the pull rod 2 is pulled, the limiting block 10 at one end needs to be pulled outwards, so that the limiting block 10 is separated from the limiting groove 8, and limiting of the pull rod 2 is relieved.

Furthermore, a guide rod 11 is arranged inside the slide rod 9, one end of the guide rod 11 is fixedly connected with the outer surface of the pull rod 2, the slide rod 9 is connected with the guide rod 11 in a sliding manner, an inner rod 12 is arranged inside the guide rod 11, one end of the inner rod 12 is fixedly connected with a limit block 10, one end inside the guide rod 11 is fixedly provided with a stop ring 13, the stop ring 13 is sleeved on the outer surface of the inner rod 12, one side, located on the stop ring 13, of the outer surface of the inner rod 12 is sleeved with a spring 14, one end of the inner rod 12 is fixedly provided with a stop block 15, in the process of pulling the limit block 10 outwards, the slide rod 9 is driven to slide outwards along the guide rod 11, so that the inner rod 12 is driven to pull outwards along the stop ring 13, the stop block 15 at one end can extrude the spring 14, when the limit groove 8 at the other end of the sliding chute 7, where the slide rod 9 slides, the spring 14 can automatically pull the inner rod 12 inwards, the limiting block 10 is driven to be inserted into the limiting groove 8, and the pull rod 2 is limited.

The working principle is as follows: referring to the attached drawings 1-5 of the specification, when the ratchet and pawl device is closed, the pull rod 2 needs to be pulled upwards to drive the pawl 3 at one end to rotate along the fixed shaft 4, the pawl 3 is buckled on the surface of the ratchet 5, so that the ratchet and pawl device is in a closed state, the safe operation and the reverse rotation of the equipment are ensured through the closing of the ratchet 5 and the pawl 3, before the pull rod 2 is pulled, the limit block 10 at one end needs to be pulled outwards to separate the limit block 10 from the limit groove 8, the limit on the pull rod 2 is released, then the pull rod 2 is pulled, the slide rod 9 slides along the slide groove 7 in the pulling process of the pull rod 2, the slide rod 9 is driven to slide outwards along the guide rod 11 in the outwards pulling process of the limit block 10, so as to drive the inner rod 12 to be pulled outwards along the baffle ring 13, the stop block 15 at one end extrudes the spring 14, when the limit groove 8 at the other end of the slide groove 7 where the slide rod 9 slides, the spring 14 can automatically pull the inner rod 12 inwards to drive the limiting block 10 to be inserted into the limiting groove 8 to limit the pull rod 2, so that the stability of the closing state of the ratchet wheel 5 and the pawl 3 is ensured.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A ratchet pawl device comprising a mount (1), characterized in that: one side of mount pad (1) is provided with pull rod (2), the top of mount pad (1) is provided with pawl (3), the inside top fixed mounting of mount pad (1) has fixed axle (4), the bottom of pawl (3) and the one end fixed connection of pull rod (2), pawl (3) and pull rod (2) are through fixed axle (4) and mount pad (1) swing joint, one side of mount pad (1) is provided with ratchet (5), the surface fixed mounting of ratchet (5) has shear pin (6), the top of pawl (3) and the surface phase-match of shear pin (6).

2. The ratchet-pawl device of claim 1, wherein: the outer surface of the mounting seat (1) is located on one side of the pull rod (2) and is provided with a sliding groove (7), and two ends of the sliding groove (7) are provided with limiting grooves (8).

3. The ratchet-pawl device of claim 2, wherein: the sliding groove (7) is communicated with the limiting grooves (8) at two ends, and the sliding groove (7) is arc-shaped.

4. The ratchet-pawl device according to claim 3, wherein: the outer surface of one side of the pull rod (2) is provided with a slide rod (9), and one end of the slide rod (9) is fixedly provided with a limiting block (10).

5. The ratchet-pawl device according to claim 4, wherein: slide bar (9) and spout (7) phase-match, pull rod (2) pass through slide bar (9) and mount pad (1) sliding connection, the one end and the spacing groove (8) phase-match of stopper (10).

6. The ratchet-pawl device according to claim 5, wherein: the novel telescopic rod is characterized in that a guide rod (11) is arranged inside the slide rod (9), one end of the guide rod (11) is fixedly connected with the outer surface of the pull rod (2), the slide rod (9) is connected with the guide rod (11) in a sliding mode, and an inner rod (12) is arranged inside the guide rod (11).

7. The ratchet-pawl device according to claim 6, wherein: one end of the inner rod (12) is fixedly connected with the limiting block (10), a baffle ring (13) is fixedly mounted at one end inside the guide rod (11), the outer surface of the inner rod (12) is sleeved with the baffle ring (13), a spring (14) is sleeved on one side, located on the baffle ring (13), of the outer surface of the inner rod (12), and a stop block (15) is fixedly mounted at one end of the inner rod (12).