CN216512596U

CN216512596U - Dustproof gear box of chain block

Info

Publication number: CN216512596U
Application number: CN202122712460.5U
Authority: CN
Inventors: 刘丛
Original assignee: Hebei Deke Hoisting Machinery Manufacturing Co ltd
Current assignee: Hebei Deke Hoisting Machinery Manufacturing Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-05-13
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a dustproof gearbox of a chain block, which comprises a dustproof shell, wherein screw holes are formed in four corners of the dustproof shell in a penetrating mode, bolts are connected to the four screw holes in a sliding mode, a fixing block is fixedly connected to the middle position of the top of the dustproof shell, a sliding groove is formed in the center of the front end of the dustproof shell, a dustproof plate is connected to the sliding groove in a sliding mode, and a ratchet wheel is connected to the middle position of the outer wall of a rotating shaft in a rotating mode. According to the utility model, the bolts are screwed on the hand chain hoist, the sealing gaskets are arranged at the periphery of the dustproof shell and made of nitrile rubber, so that the dustproof shell has an excellent sealing effect, the dustproof plate is arranged at the front end of the dustproof shell, and small holes which are uniformly and densely distributed are formed in the dustproof plate, so that dust can be effectively prevented from entering the device, the double-layer dustproof structure can effectively prevent the dust from entering the device, the dustproof efficiency of the device is greatly improved, the service life of the device is prolonged, and the dustproof hand chain hoist is worth of great popularization.

Description

Dustproof gear box of chain block

Technical Field

The utility model relates to the technical field of chain blocks, in particular to a dustproof gear box of a chain block.

Background

The chain block is called a fairy block, a chain block, a hand block, is a manual hoisting machine which is simple to use and convenient to carry, is also called a ring chain block or a chain block, is suitable for short-distance hoisting of small equipment and goods, generally has the hoisting capacity of not more than 10T and maximally can reach 20T, the hoisting height is generally not more than 6m, and the shell of the chain block is made of high-quality alloy steel, so that the chain block is firm and wear-resistant and has high safety performance.

Chinese patent 201320420850.8 discloses a chain block's dust keeper, including fixed preceding, back splint together, and have the clearance between preceding, the back splint, preceding, back splint between rotate and install two pivots, be the gear drive cooperation between the preceding, the rear end of two pivots, the middle part of two pivots is overlapped respectively and is equipped with the guide pulley, fixed mounting has the shell of falling triangle-shaped on the lateral wall of front splint, be equipped with the fluting on the lateral wall of back splint. The device that this patent provided is at the practical application in-process, and dustproof construction is single, inside the dust access device that prevents that can not be fine, the dustproof inefficiency of device, and the device that this patent provided lacks braking structure, can not effectually brakie the device, does not have the practicality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a dustproof gearbox with a chain block.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a chain block gear box that prevents dust, includes the dust shell, dust shell four corners position all runs through and is provided with the screw, four equal sliding connection has the bolt on the screw, dust shell top intermediate position fixedly connected with fixed block, dust shell front end central point puts and is provided with the spout, sliding connection has the dust guard on the spout, dust shell rear end central point puts and runs through and fixedly connected with pivot, pivot outer wall intermediate position rotates and is connected with the ratchet, ratchet front end central point puts fixedly connected with hand-pulling wheel and hand-pulling wheel central point and runs through and the rotationally connected with pivot, ratchet outer diameter position fixedly connected with evenly distributed's pawl all around, be close to left side position fixedly connected with bolt in the middle of the dust shell rear end inner wall top, bolt outer wall intermediate position rotates and is connected with the checkpost.

As a further description of the above technical solution:

and the outer walls of the four bolts are provided with threads.

As a further description of the above technical solution:

the top of the fixed block is fixedly connected with a hook.

As a further description of the above technical solution:

the equal fixedly connected with seal ring of shield shell front end outer wall position all around and seal ring are the butadiene acrylonitrile rubber material.

As a further description of the above technical solution:

the dustproof shell is provided with a cavity at the front end center position.

As a further description of the above technical solution:

the dust guard is provided with small holes which are uniformly and densely distributed.

As a further description of the above technical solution:

the clip is in contact with the pawl.

The utility model has the following beneficial effects:

1. according to the utility model, the bolts are firstly installed on the screw holes, the four bolts are respectively provided with the threads, the bolts are screwed on the chain block, the sealing washers are installed at the periphery of the dustproof shell and are made of nitrile rubber, the sealing washers have excellent sealing effect and can prevent dust from entering the device, the dustproof plate is installed at the front end of the dustproof shell, and the dustproof plate is provided with the small holes which are uniformly and densely distributed, so that the dust can be further effectively prevented from entering the device, and the double-layer dustproof structure can effectively prevent dust from entering the device, greatly improve the dustproof efficiency of the device, reduce the loss of the device in the daily use process and prolong the service life of the device.

2. According to the utility model, the ratchet wheel is arranged in the dustproof shell, the pawls which are uniformly distributed are fixedly connected to the outer diameter of the periphery of the ratchet wheel, the clip is arranged in the middle of the top of the inner wall at the rear end of the dustproof shell, which is close to the left side, and is in contact with the pawls, when the ratchet wheel rotates clockwise, the clip cannot prevent the pawls from operating, the ratchet wheel can normally rotate, and when the ratchet wheel rotates anticlockwise, the clip can block the pawls, so that the ratchet wheel is blocked, a braking effect is achieved, the practicability of the device is greatly improved, and the device is worthy of great popularization.

Drawings

FIG. 1 is a perspective view of a dustproof gearbox of a chain block according to the present invention;

FIG. 2 is an internal structure view of the dustproof gearbox of the chain block of the present invention;

fig. 3 is a structure diagram of the plug pin of the dustproof gearbox of the chain block.

Illustration of the drawings:

1. hooking; 2. a screw hole; 3. a sealing gasket; 4. a small hole; 5. a rotating shaft; 6. a bolt; 7. a fixed block; 8. a dust-proof plate; 9. a dust-proof shell; 10. a thread; 11. a clip; 12. a chute; 13. a pawl; 14. a ratchet wheel; 15. a cavity; 16. a hand-pull wheel; 17. and (4) a bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a dustproof gear box of a chain block comprises a dustproof shell 9, four corners of the dustproof shell 9 are all penetrated and provided with screw holes 2, bolts 6 are all connected to the four screw holes 2 in a sliding mode, a fixing block 7 is fixedly connected to the middle position of the top of the dustproof shell 9, a sliding groove 12 is arranged at the center position of the front end of the dustproof shell 9, a dustproof plate 8 is connected to the sliding groove 12 in a sliding mode, a rotating shaft 5 is penetrated and fixedly connected to the center position of the rear end of the dustproof shell 9, a ratchet wheel 14 is rotatably connected to the middle position of the outer wall of the rotating shaft 5, a hand-pulling wheel 16 is fixedly connected to the center position of the front end of the ratchet wheel 14, a rotating shaft 5 is penetrated and rotatably connected to the center position of the hand-pulling wheel 16, evenly distributed pawls 13 are fixedly connected to the outer diameter positions around the ratchet wheel 14, the ratchet wheel 14 is installed in the dustproof shell 9, evenly distributed pawls 13 are fixedly connected to the outer diameter positions around the ratchet wheel 14, a clamp 11 is installed at a position close to the left side in the middle of the top of the inner wall of the rear end of the dustproof shell 9, contact between checkpost 11 and the pawl 13, when ratchet 14 clockwise rotation, checkpost 11 can not prevent pawl 13 operation, ratchet 14 can normally rotate, when ratchet 14 anticlockwise rotation, checkpost 11 can block pawl 13 to block ratchet 14, play the braking action, greatly improved the practicality of device, be close to left side position fixedly connected with bolt 17 in the middle of the 9 rear end inner walls tops of dust-proof housing, bolt 17 outer wall intermediate position rotates and is connected with checkpost 11.

The outer walls of four bolts 6 are all provided with threads 10, the top position of a fixed block 7 is fixedly connected with a hook 1, the peripheral positions of the outer wall at the front end of a dustproof shell 9 are all fixedly connected with a sealing washer 3, the sealing washer 3 is made of nitrile rubber, the central position at the front end of the dustproof shell 9 is provided with a cavity 15, the bolts 6 are arranged on screw holes 2, the four bolts 6 are all provided with the threads 10, the bolts 6 are screwed on a chain block, the sealing washer 3 is arranged at the peripheral positions of the dustproof shell 9, the sealing washer 3 is made of nitrile rubber, the sealing effect is excellent, dust can be prevented from entering the interior of the device, a dustproof plate 8 is arranged at the front end of the dustproof shell 9, small holes 4 are uniformly and densely distributed on the dustproof plate 8, the dust can be further effectively prevented from entering the device, a double-layer dustproof structure can effectively prevent dust from entering the interior of the device, and the dustproof efficiency of the device is greatly improved, the loss of the device in the daily use process is reduced, the service life of the device is prolonged, the dust-proof plate 8 is provided with the small holes 4 which are uniformly and densely distributed, and the clips 11 are in contact with the pawls 13.

The working principle is as follows: before the device is used, the safety and the stability of each structure of the device are checked, firstly, bolts 6 are installed on screw holes 2, threads 10 are arranged on four bolts 6, the bolts 6 are screwed on a chain block, sealing gaskets 3 are installed at the peripheral positions of a dustproof shell 9, the sealing gaskets 3 are made of nitrile rubber, the sealing effect is good, dust can be prevented from entering the device, a dustproof plate 8 is installed at the front end of the dustproof shell 9, small holes 4 are uniformly and densely distributed on the dustproof plate 8, the dust can be further effectively prevented from entering the device, the double-layer dustproof structure can effectively prevent dust from entering the device, the dustproof efficiency of the device is greatly improved, the loss in the daily use process of the device is reduced, the service life of the device is prolonged, a ratchet wheel 14 is installed in the dustproof shell 9, and uniformly distributed pawls 13 are fixedly connected to the outer diameter of the periphery of the ratchet wheel 14, be close to left side position in the middle of 9 rear end inner walls tops of dust-proof housing and install checkpost 11, contact between checkpost 11 and the pawl 13, when ratchet 14 clockwise rotation, checkpost 11 can not prevent pawl 13 operation, and ratchet 14 can normally rotate, and when ratchet 14 anticlockwise rotation, checkpost 11 can block pawl 13 to block ratchet 14, play the braking action, greatly improved the practicality of device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a chain block dustproof gear box, includes dirt proof housing (9), its characterized in that: the dustproof shell (9) is characterized in that screw holes (2) are formed in the four corners of the dustproof shell (9), bolts (6) are connected to the four screw holes (2) in a sliding mode, a fixed block (7) is fixedly connected to the middle of the top of the dustproof shell (9), a sliding groove (12) is formed in the center of the front end of the dustproof shell (9), a dustproof plate (8) is connected to the sliding groove (12) in a sliding mode, a rotating shaft (5) is connected to the center of the rear end of the dustproof shell (9) in a penetrating mode and fixedly connected with the middle of the top of the dustproof shell, a ratchet wheel (14) is rotatably connected to the middle of the outer wall of the rotating shaft (5), a hand pulling wheel (16) is fixedly connected to the center of the front end of the ratchet wheel (14) in a penetrating mode and rotatably connected with the rotating shaft (5), evenly distributed pawls (13) are fixedly connected to the outer diameter positions of the periphery of the ratchet wheel (14), and a bolt (17) is fixedly connected to the middle of the back end of the dustproof shell (9) close to the left side, the middle position of the outer wall of the bolt (17) is rotatably connected with a clip (11).

2. The dustproof gearbox of the chain block as claimed in claim 1, wherein: and the outer walls of the four bolts (6) are provided with threads (10).

3. The dustproof gearbox of the chain block as claimed in claim 1, wherein: the top of the fixed block (7) is fixedly connected with a hook (1).

4. The dustproof gearbox of the chain block as claimed in claim 1, wherein: the dustproof shell (9) is characterized in that the periphery of the outer wall of the front end of the dustproof shell (9) is fixedly connected with a sealing washer (3) and the sealing washer (3) is made of nitrile rubber.

5. The dustproof gearbox of the chain block as claimed in claim 1, wherein: and a cavity (15) is arranged at the center of the front end of the dustproof shell (9).

6. The dustproof gearbox of the chain block as claimed in claim 1, wherein: the dust guard (8) is provided with small holes (4) which are uniformly and densely distributed.

7. The dustproof gearbox of the chain block as claimed in claim 1, wherein: the clip (11) is in contact with the pawl (13).