CN220393155U

CN220393155U - Anti-blocking fast chain block

Info

Publication number: CN220393155U
Application number: CN202321805811.XU
Authority: CN
Inventors: 田相通; 王行涛; 曹志民
Original assignee: Tianjin Jiacheng Marine Engineering Co ltd
Current assignee: Tianjin Jiacheng Marine Engineering Co ltd
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-01-26
Anticipated expiration: 2033-12-13

Abstract

The utility model discloses an anti-blocking quick chain block, which comprises a protection frame, wherein the inner wall of the protection frame is penetrated with a threaded rod, the bottom end of the threaded rod is fixedly connected with a knob, the outer wall of the threaded rod is in threaded connection with a threaded slider, one end of the threaded slider is in screwed connection with a connecting rod, one end of the connecting rod is in screwed connection with a telescopic slider which is in sliding connection with the inner wall of the protection frame, the outer wall of the telescopic slider is fixedly connected with a connecting block, and the outer wall of the connecting block is in screwed connection with a telescopic roller.

Description

Anti-blocking fast chain block

Technical Field

The utility model relates to the technical field of chain blocks, in particular to an anti-blocking quick chain block.

Background

The chain hoist is a simple-to-use and portable manual hoisting machine, is suitable for short-distance hoisting of small equipment and goods, has a hoisting capacity of not more than 10T, a maximum of 20T and a hoisting height of not more than 6m. The hand chain has the characteristics of safety, reliability, simplicity and convenience in maintenance, high mechanical efficiency, small hand chain tension, lighter weight, portability, attractive appearance, small size and durability, is suitable for being used as an installation machine and lifting goods in factories, mines, construction sites, wharfs, docks, warehouses and the like, and particularly has superiority for open air and power-free operation.

When the existing chain block is transported, the driving chain is easy to be clamped between the shell and the driven turntable, so that a worker cannot normally use the chain block, the shell is required to be opened by the worker, the driving chain is reset, the operation is complicated,

accordingly, in view of the above, an anti-seize fast chain is proposed to solve the problems of the prior art.

Disclosure of Invention

The utility model aims to provide an anti-blocking quick chain block, which aims to solve the problem that a driving chain is easy to block between a shell and a driven turntable in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick chain of anti-sticking, includes protection frame, protection frame's inner wall runs through there is the threaded rod, the bottom fixedly connected with knob of threaded rod, the outer wall threaded connection of threaded rod has the screw slider, the one end of screw slider connects soon has the connecting rod, the one end of connecting rod connects soon has the flexible slider with protection frame inner wall sliding connection, the outer wall fixedly connected with connecting block of flexible slider, the outer wall of connecting block connects soon has flexible gyro wheel, one side of flexible gyro wheel is located protection frame's outer wall and connects soon has fixed gyro wheel, fixed gyro wheel is provided with drive chain with the junction of flexible gyro wheel.

Preferably, the top fixedly connected with shell of protection frame, the inner wall of shell runs through there is the connecting axle, the outer wall fixedly connected with of connecting axle is with the initiative rim plate of driving chain outer wall laminating mutually, one side of initiative rim plate is located the outer wall of connecting axle and connects soon has the ratchet, the outer wall laminating of ratchet has the friction disc with connecting axle outer wall threaded connection, the lateral wall block of ratchet has the pawl that connects soon with the shell inner wall, the outer wall of pawl is provided with the shell fragment.

Preferably, one end fixedly connected with driving gear of connecting axle, the engagement surface meshing of driving gear has the first drive gear who connects soon with the shell inner wall, the outer wall fixedly connected with gear reduction of first drive gear, gear reduction's engagement surface meshing has the driven gear who connects soon with the shell inner wall, driven gear's outer wall fixedly connected with and shell inner wall connect soon's driven carousel, driven carousel's outer wall is provided with the lifting chain, the oiling mouth has been seted up to the top of driving gear's top in the outer wall of shell, the lifting hook is installed to lifting chain's one end, the couple is installed on the top of shell.

Preferably, the connecting rods are provided with two groups, and the position relationship of the two groups of connecting rods is symmetrical about the thread sliding blocks.

Preferably, the telescopic sliding block forms a sliding structure with the protection frame through the threaded sliding block and the connecting rod.

Preferably, the driving chain forms a limiting structure through between the telescopic roller and the fixed roller, and grooves with the same diameter as the driving chain are formed in the outer walls of the telescopic roller and the fixed roller.

Preferably, the pawls are provided in two groups, and the positional relationship of the two groups of pawls is centrosymmetric with respect to the ratchet.

Preferably, the central axis of the oil filling port and the central axis of the driving gear are positioned on the same vertical plane.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the telescopic roller and the fixed roller are arranged, the threaded slider slides and drives the telescopic slider to slide through the connecting rod, and the telescopic slider slides and drives the telescopic roller and the fixed roller on the outer wall of the connecting block to move relatively, so that the telescopic roller slides and drives the driving chain to be attached to the outer wall of the fixed roller, the limit operation of the driving chain is realized, and the driving chain is prevented from being clamped between the shell and the driven turntable;

2. according to the utility model, by arranging the two groups of pawls, the driving chain rotates to drive the driving wheel disc to rotate through friction, the driving wheel disc rotates to drive the connecting shaft to rotate, and the connecting shaft drives the friction plate to be attached to the ratchet wheel through threads, so that the ratchet wheel and the connecting shaft synchronously rotate, the control operation of stable rotation of the connecting shaft is realized, and the phenomenon that the driving wheel disc rotates reversely due to overweight goods is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of an anti-seize quick chain block of the present utility model;

FIG. 2 is a schematic diagram of a telescopic slider of an anti-seize fast chain block according to the present utility model;

FIG. 3 is a schematic view of the structure of a telescopic roller and a fixed roller of an anti-seize fast chain-turning device of the present utility model;

fig. 4 is a schematic structural view of a driven turntable of the anti-seize fast chain-turning of the present utility model.

In the figure: 1. a protective frame; 2. a threaded rod; 3. a knob; 4. a thread slider; 5. a connecting rod; 6. a telescopic slide block; 7. a connecting block; 8. a telescopic roller; 9. a fixed roller; 10. a drive chain; 11. a housing; 12. a connecting shaft; 13. a driving wheel disc; 14. a hoisting chain; 15. a ratchet wheel; 16. a friction plate; 17. a pawl; 18. a spring plate; 19. a drive gear; 20. a first transmission gear; 21. a reduction gear; 22. a driven gear; 23. a driven turntable; 24. an oil filling port; 25. a lifting hook; 26. a hook.

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.

Example 1

As shown in fig. 1-3, an anti-blocking quick chain block comprises a protection frame 1, wherein the inner wall of the protection frame 1 is penetrated with a threaded rod 2, the bottom end of the threaded rod 2 is fixedly connected with a knob 3, the outer wall of the threaded rod 2 is in threaded connection with a threaded slide block 4, one end of the threaded slide block 4 is screwed with a connecting rod 5, one end of the connecting rod 5 is screwed with a telescopic slide block 6 which is in sliding connection with the inner wall of the protection frame 1, the outer wall of the telescopic slide block 6 is fixedly connected with a connecting block 7, the outer wall of the connecting block 7 is screwed with a telescopic roller 8, one side of the telescopic roller 8 is positioned on the outer wall of the protection frame 1 and is screwed with a fixed roller 9, and a driving chain 10 is arranged at the connecting part of the fixed roller 9 and the telescopic roller 8.

Further, the connecting rod 5 is provided with two sets of, and the positional relationship of two sets of connecting rods 5 is symmetrical about screw slider 4, and during operation is through setting up two sets of connecting rods 5, and knob 3 rotates and drives screw slider 4 vertical slip through threaded rod 2, and screw slider 4 slides and drives two sets of connecting rods 5 synchronous motion, realizes the control operation of two sets of connecting rods 5 synchronous motion.

Further, the telescopic slide block 6 forms a sliding structure with the protection frame 1 through the threaded slide block 4 and the connecting rod 5, and when in operation, the threaded slide block 4 slides and drives the telescopic slide block 6 to slide through the connecting rod 5, so that the sliding control operation of the telescopic slide block 6 is realized.

Further, the driving chain 10 forms a limiting structure between the telescopic roller 8 and the fixed roller 9, the outer walls of the telescopic roller 8 and the fixed roller 9 are provided with grooves with the same diameter as the driving chain 10, and when the driving chain is in operation, the telescopic sliding block 6 slides to drive the telescopic roller 8 and the fixed roller 9 which are arranged on the outer wall of the connecting block 7, so that the telescopic roller 8 slides to drive the driving chain 10 to be attached to the outer wall of the fixed roller 9, limiting operation of the driving chain 10 is realized, and the driving chain 10 is prevented from being clamped between the shell 11 and the driven turntable 23.

Example two

As shown in fig. 2 and fig. 3, in a first comparative example, as another embodiment of the present utility model, a housing 11 is fixedly connected to the top end of a protective frame 1, a connecting shaft 12 is penetrated through the inner wall of the housing 11, an outer wall of the connecting shaft 12 is fixedly connected with a driving wheel disc 13 attached to the outer wall of a driving chain 10, one side of the driving wheel disc 13 is rotatably connected with a ratchet wheel 15 on the outer wall of the connecting shaft 12, the outer wall of the ratchet wheel 15 is attached to a friction plate 16 in threaded connection with the outer wall of the connecting shaft 12, a pawl 17 rotatably connected with the inner wall of the housing 11 is clamped on the side wall of the ratchet wheel 15, a spring plate 18 is arranged on the outer wall of the pawl 17, during working, a worker drives the chain 10, the driving chain 10 rotates to drive the driving wheel disc 13 to rotate through friction force, the driving wheel disc 13 rotates to drive the connecting shaft 12 to rotate, the friction plate 16 is attached to the ratchet wheel 15 through threads, so that the ratchet wheel 15 rotates synchronously with the connecting shaft 12, and through two groups of pawls 17, a control operation for stably rotating the connecting shaft 12 is realized, and the goods are prevented from being excessively heavy, and the driving wheel disc 13 is reversely rotates.

Further, the two groups of pawls 17 are provided, the positional relationship of the two groups of pawls 17 is centrosymmetric with respect to the ratchet 15, and when the ratchet 15 and the connecting shaft 12 rotate synchronously, the control operation of stable rotation of the connecting shaft 12 is realized through the two groups of pawls 17.

Example III

As shown in fig. 1 and fig. 4, in a first comparative example, as another embodiment of the present utility model, one end of the connecting shaft 12 is fixedly connected with a driving gear 19, an engagement surface of the driving gear 19 is engaged with a first transmission gear 20 rotationally connected with an inner wall of the housing 11, an outer wall of the first transmission gear 20 is fixedly connected with a reduction gear 21, an engagement surface of the reduction gear 21 is engaged with a driven gear 22 rotationally connected with the inner wall of the housing 11, an outer wall of the driven gear 22 is fixedly connected with a driven turntable 23 rotationally connected with the inner wall of the housing 11, a lifting chain 14 is arranged on an outer wall of the driven turntable 23, an oil filling port 24 is arranged on an outer wall of the housing 11 above the driving gear 19, a lifting hook 25 is arranged at one end of the lifting chain 14, a hook 26 is arranged at the top end of the housing 11, and in operation, the connecting shaft 12 rotates to drive the driving gear 19 to rotate, the reduction gear 21 rotates by being engaged with the first transmission gear 20, the reduction gear 21 rotates by being engaged with the driven turntable 23, and the lifting hook 25 at the bottom end of the driving chain 10 is vertically lifted by friction force.

Further, the central axis of the oil filling port 24 and the central axis of the driving gear 19 are located on the same vertical plane, and when in operation, a worker injects lubricating oil into the housing 11 through the oil filling port 24 to lubricate the gears inside the housing 11.

Working principle: when using this anti-sticking fast chain, firstly, when transporting shell 11, drive chain 10 is blocked between shell 11 and driven carousel 23 easily, the staff rotates knob 3 before shell 11 is transported, knob 3 rotates and drives the vertical slip of screw slider 4 through threaded rod 2, screw slider 4 slides and drives two sets of connecting rods 5 synchronous motion, so that screw slider 4 slides and drives flexible slider 6 through connecting rod 5 and slide, flexible gyro wheel 8 and fixed gyro wheel 9 relative motion of flexible slider 6 slip drive connecting block 7 outer wall, so that flexible gyro wheel 8 slip drive chain 10 and fixed gyro wheel 9's outer wall laminating mutually, realize the spacing operation to drive chain 10, avoid drive chain 10 to block between shell 11 and driven carousel 23, then, at shell 11 during operation, the staff pours into lubricating oil into shell 11 through oiling mouth 24, the inside gear of shell 11 is lubricated.

Then, the staff drives the chain 10, the driving chain 10 rotates to drive the driving wheel disc 13 to rotate through friction, the driving wheel disc 13 rotates to drive the connecting shaft 12 to rotate, the connecting shaft 12 drives the friction plate 16 to be attached to the ratchet wheel 15 through threads, so that the ratchet wheel 15 and the connecting shaft 12 synchronously rotate, stable rotating control operation of the connecting shaft 12 is realized through two groups of pawls 17, and the phenomenon that the goods are overweight is avoided, so that the driving wheel disc 13 is reversed is avoided.

Meanwhile, the connecting shaft 12 rotates to drive the driving gear 19 to rotate, the driving gear 19 rotates to drive the reduction gear 21 to rotate through being meshed with the first transmission gear 20, the reduction gear 21 rotates to drive the driven turntable 23 to rotate through being meshed with the driven gear 22, and the driven turntable 23 rotates to drive the lifting hook 25 at the bottom end of the driving chain 10 to vertically lift through friction force, so that lifting operation of goods is realized, and the working principle of the anti-blocking quick chain is realized.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a fast chain of anti-sticking, includes protective frame (1), its characterized in that: the inner wall of protection frame (1) runs through there is threaded rod (2), the bottom fixedly connected with knob (3) of threaded rod (2), the outer wall threaded connection of threaded rod (2) has screw slider (4), the one end of screw slider (4) connects soon has connecting rod (5), the one end of connecting rod (5) connect soon with protection frame (1) inner wall sliding connection's flexible slider (6), the outer wall fixedly connected with connecting block (7) of flexible slider (6), the outer wall of connecting block (7) connects soon flexible gyro wheel (8), one side of flexible gyro wheel (8) is located the outer wall of protection frame (1) and connects soon has fixed gyro wheel (9), the junction of fixed gyro wheel (9) and flexible gyro wheel (8) is provided with drive chain (10).

2. An anti-seize quick chain block as set forth in claim 1, wherein: the protection frame is characterized in that the top end of the protection frame (1) is fixedly connected with the shell (11), the inner wall of the shell (11) penetrates through the connecting shaft (12), the outer wall of the connecting shaft (12) is fixedly connected with the driving wheel disc (13) attached to the outer wall of the driving chain (10), one side of the driving wheel disc (13) is located on the outer wall of the connecting shaft (12) and is rotatably connected with the ratchet wheel (15), the outer wall of the ratchet wheel (15) is attached to the friction plate (16) in threaded connection with the outer wall of the connecting shaft (12), the side wall of the ratchet wheel (15) is clamped with the pawl (17) rotatably connected with the inner wall of the shell (11), and the outer wall of the pawl (17) is provided with the elastic sheet (18).

3. An anti-seize quick chain block as set forth in claim 2, wherein: one end fixedly connected with driving gear (19) of connecting axle (12), the engagement face meshing of driving gear (19) has first drive gear (20) that connect soon with shell (11) inner wall, the outer wall fixedly connected with reducing gear (21) of first drive gear (20), the engagement face meshing of reducing gear (21) has driven gear (22) that connect soon with shell (11) inner wall, driven gear (22)'s outer wall fixedly connected with and shell (11) inner wall connect soon driven carousel (23), driven carousel (23)'s outer wall is provided with lifting chain (14), oiling mouth (24) have been seted up to the top of driving gear (19) top in shell (11), lifting hook (25) are installed to lifting chain (14) one end, couple (26) are installed on the top of shell (11).

4. An anti-seize quick chain block as set forth in claim 1, wherein: the connecting rods (5) are provided with two groups, and the position relation of the two groups of connecting rods (5) is symmetrical with respect to the threaded sliding blocks (4).

5. An anti-seize quick chain block as set forth in claim 1, wherein: the telescopic sliding block (6) forms a sliding structure with the protection frame (1) through the threaded sliding block (4) and the connecting rod (5).

6. An anti-seize quick chain block as set forth in claim 1, wherein: the driving chain (10) forms a limiting structure between the telescopic roller (8) and the fixed roller (9), and grooves with the same diameter as the driving chain (10) are formed in the outer walls of the telescopic roller (8) and the fixed roller (9).

7. An anti-seize quick chain block as set forth in claim 2, wherein: the pawls (17) are provided with two groups, and the positional relationship of the two groups of pawls (17) is centrosymmetric with respect to the ratchet wheel (15).

8. A jam-proof quick chain block as set forth in claim 3, wherein: the central axis of the oil filling port (24) and the central axis of the driving gear (19) are positioned on the same vertical plane.