Ratchet wheel and pawl type retaining device

Abstract

The utility model relates to the field of retaining devices, and discloses a ratchet wheel and pawl type retaining device which comprises a mounting plate, the mounting plate is provided with a rotating part, the rotating part is provided with a ratchet wheel, the mounting plate is provided with a pawl, the pawl is meshed with the ratchet wheel, the rotating part is connected with a plurality of baffles, each baffle comprises a first batten and a second batten, the first batten is fixedly connected to the rotating part, and the second batten is fixedly connected to the rotating part. The second batten is movably connected to the rotating part and provided with a first fixing part and a second fixing part. The rotary table has the following advantages and effects that the first fixing part is arranged, the first spring abuts against the connecting rod into the connecting hole in the natural state, fixing between the second batten and the rotary table is achieved, the second fixing part is arranged, and the second spring abuts against the movable plate out of the surface of the second plate and abuts against the fixing plates on the two sides of the first plate. The first plate and the second plate are prevented from generating circumferential displacement, and the purpose that the second plate and the first plate are vertically aligned can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of backstops, in particular to a ratchet pawl type backstop. Background Art

[0002] In the coating workshop, in order to cope with the mixed production of different types of products, a centralized mechanized conveyor chain is used for the pre-treatment electrophoresis process. The parts are moved while the process pool is fixed. Therefore, the conveyor chain has a lifting process. For safety, it is necessary to install a backstop during the uphill and downhill process of the chain to prevent the slings hanging on the chain from sliding down due to gravity when the chain breaks, causing the trolleys to collide with each other and cause greater losses. The most widely used one is the spring backstop, which has the advantages of simple structure and easy installation, but there are also problems such as the spring is easy to fail and the spring rod is easy to wear. Positioning maintenance is required, which increases the workload of equipment maintenance personnel.

[0003] The existing backstop is rotatably connected to a rotating disk, and a number of baffles are fixedly connected to the rotating disk, and the number of baffles depends on the neck diameter of the sling trolley. When the painting mechanized conveyor line chain is running, the sling trolley runs under the push of the chain block. When it hits the backstop baffle, the sling trolley will push the baffle to rotate, thereby driving the ratchet to rotate. When the painted parts are large and need to be replaced with a sling trolley with a larger neck diameter, the backstop also needs to be replaced. The backstop needs to be disassembled and the number and spacing of the baffles need to be redesigned, which results in a large workload and low efficiency. Utility Model Content

[0004] The utility model aims to provide a ratchet pawl type back-off stopper, which has the effect of quickly adjusting the distance between baffles according to the diameter of the neck of the sling trolley.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a ratchet pawl type backstop, comprising a mounting plate, the mounting plate is provided with a rotating part, the rotating part is provided with a ratchet, the mounting plate is provided with a pawl, the pawl is meshed with the ratchet, the rotating part is connected to a plurality of baffles, the baffles include a first slat and a second slat, the first slat is fixedly connected to the rotating part, the second slat is movably connected to the rotating part, the second slat is provided with a first fixing part and a second fixing part, the second slat is fixed to the rotating part through the first fixing part, and the second slat is fixed to the first slat through the second fixing part.

[0006] By adopting the above technical solution and flexibly connecting the second slat to the rotating part, the purpose of adjusting the baffle spacing can be achieved.

[0007] The utility model is further configured as follows: the mounting plate includes an upper plate and a lower plate, the upper plate and the lower plate are respectively located at the upper and lower ends of the machine, the rotating part includes a rotating shaft arranged on the upper plate, and a rotating disk rotatably connected to the rotating shaft, the rotating disk is located at the bottom of the upper plate, and a first bearing is arranged between the rotating disk and the rotating shaft.

[0008] The utility model is further configured as follows: the ratchet is rotatably connected to the rotating shaft and is located at the bottom end of the rotating disk, a second bearing is connected between the ratchet and the rotating shaft, and a bolt is connected between the ratchet and the rotating disk.

[0009] By adopting the above technical solution, the ratchet is fixedly connected to the rotating disk by setting bolts. When the baffle is driven by force to drive the rotating disk to rotate, the rotating disk drives the ratchet to rotate, thereby achieving the purpose of the baffle driving the ratchet to rotate.

[0010] The utility model is further configured as follows: the lower plate is located at the bottom end of the ratchet, the top end of the lower plate is connected to a base, and the ratchet pawl is rotatably connected to the base.

[0011] The utility model is further configured as follows: the first slat is fixedly connected to the rotating disk, a guide ring is provided on the surface of the rotating disk, and the second slat is slidably connected to the guide ring.

[0012] The utility model is further configured as follows: guide rings are provided on the upper and lower surfaces of the rotating disk, and the guide rings on the upper and lower sides are slidably connected to second slats, and the number of second slats slidably connected to the upper surface of the rotating disk is equal to the number of second slats slidably connected to the lower surface of the rotating disk and are respectively equal to the number of the first slats.

[0013] By adopting the above technical solution, by setting the second slats to be symmetrical up and down, and the second slats on the upper and lower sides can be vertically aligned with the first slats, when the baffle spacing is increased, the second slats on the upper and lower sides are aligned with the first slats, thereby achieving the purpose of increasing the baffle spacing.

[0014] The utility model is further configured as follows: the baffle is provided with a rod and a plate, the first slat includes a first rod and a first plate, the second slat includes a second rod and a second plate, the first rod is fixedly connected to the rotating disk, fixed plates are symmetrically provided on both sides of the first plate, and the first plate is congruent with the second plate.

[0015] The utility model is further configured as follows: a guide groove is provided on the outer ring of the guide ring, a groove is provided on the guide groove, a connecting cavity is provided on the end of the second rod, a connecting shaft is provided through the connecting cavity, the upper and lower ends of the connecting shaft are embedded in the groove, the connecting shaft is located in the connecting cavity and is rotatably connected to a guide wheel, and the guide wheel is tangent to the guide groove.

[0016] By adopting the above technical solution, the connecting shaft is embedded in the groove, and the connecting shaft is subjected to radial force in the groove during the rotation of the second slat, thereby achieving the purpose of stable connection between the second rod and the guide ring.

[0017] The utility model is further configured as follows: the first fixing portion includes a mounting frame arranged on the second rod member, a connecting rod slidably connected to the mounting frame, a first spring is connected between the connecting rod and the mounting frame, and a plurality of connecting holes corresponding to the connecting rod are opened on the surface of the rotating disk.

[0018] By adopting the above technical solution and providing a mounting frame, the purpose of fixing the second rod member on the rotating disk can be achieved.

[0019] The utility model is further configured as follows: the second fixed portion includes a movable plate slidably connected to the second plate member, a connecting plate connected to the movable plate, a second spring is connected between the connecting plate and the second plate member, the connecting plate is provided with an operating plate, the operating plate penetrates the second plate member, and the distance between the two opposite sides of the movable plate is equal to the distance between the two sides of the fixed plate.

[0020] The beneficial effects of the utility model are as follows: a first fixing portion is provided, and the first spring pushes the connecting rod into the connecting hole in a natural state to achieve fixation between the second slat and the rotating disk; a second fixing portion is provided, and the second spring pushes the movable plate out of the surface of the second plate and against the fixed plates on both sides of the first plate to prevent the first plate and the second plate from generating circumferential displacement, thereby achieving the purpose of vertically aligning the second plate and the first plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a top schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a bottom schematic diagram of the overall structure of the utility model.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0025] Figure 4 It is an exploded schematic diagram of the connection between the second rod member and the guide ring of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the second fixing part of the utility model.

[0027] In the figure, 1, mounting plate; 11, upper plate; 12, lower plate; 121, base; 122, pawl; 2, rotating part; 21, rotating shaft; 22, rotating disk; 221, first bearing; 222, guide ring; 223, guide groove; 2231, groove; 224, connecting hole; 23, ratchet; 231, second bearing; 24, bolt; 3, baffle; 31, first strip; 32, first rod; 33, first plate; 331, fixed plate; 34, second strip; 35, second rod; 351, connecting cavity; 352, connecting shaft; 353, guide wheel; 36, second plate; 4, first fixing part; 41, mounting frame; 411, connecting rod; 42, first spring; 5; second fixing part; 51, movable plate; 52, connecting plate; 521, second spring; 522, operating plate. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment, a ratchet pawl type backstop, such as Figure 1-Figure 3As shown, the upper plate 11 and the lower plate 12 are respectively located at the upper and lower ends of the machine, the upper surface of the lower plate 12 is connected to the bottom plate, a rotating shaft 21 is arranged between the upper plate 11 and the bottom plate, the rotating shaft 21 is located at the bottom end of the upper plate 11 and is rotatably connected to a rotating disk 22, a first bearing 221 is arranged between the rotating disk 22 and the rotating shaft 21, a first strip 31 is fixedly connected to the rotating disk 22, and second strips 34 are slidably connected to the upper and lower sides of the rotating disk 22, and the sliding connection is arranged on the rotating disk 22. The number of second slats 34 on the upper and lower surfaces of the disk 22 is equal and is equal to the number of first slats 31; guide rings 222 are fixedly provided on the upper and lower surfaces of the rotating disk 22, and a guide groove 223 is opened on one side of the outer ring of the guide ring 222, and the end of the first rod 32 is embedded in the guide groove 223. The rotating shaft 21 is located at the bottom end of the rotating disk 22 and is rotatably connected to the ratchet 23. A second bearing 231 is connected between the ratchet 23 and the rotating shaft 21, and a bolt 24 is fixedly connected between the ratchet 23 and the rotating disk 22.

[0030] Further, such as Figure 4 , Figure 5 As shown, the first slat 31 includes a first rod 32 and a first plate 33, and the second slat 34 includes a second rod 35 and a second plate 36. The first rod 32 is fixedly connected to the rotating disk 22, and fixed plates 331 are fixedly arranged on both sides of the first plate 33. The upper and lower ends of the fixed plates 331 protrude from the upper and lower surfaces of the first plate 33; a connecting cavity is provided at the end of the second rod 35, and the connecting cavity is vertically rotatably connected to a connecting shaft 352, and the connecting shaft 352 passes through the connecting cavity, and grooves 2231 are provided at the upper and lower ends of the guide groove 223, and the upper and lower ends of the connecting shaft 352 are embedded in the grooves 2231. The part of the connecting shaft 352 located in the connecting cavity is rotatably connected to a guide wheel 353, and the guide wheel 353 is tangent to the guide groove 223. The second rod 35 is fixedly provided with an installation The mounting frame 41 is vertically slidably connected with a connecting rod 411, a first spring 42 is connected between the connecting rod 411 and the mounting frame 41, the connecting rod 411 is located at the bottom end of the first rod 32 and is connected with a handle for operation, the rotating disk 22 is provided with a plurality of connecting holes 224 for connecting the connecting rod 411, movable plates 51 are vertically slidably provided on both sides of the second plate 36, connecting plates 52 are fixedly connected between the movable plates 51, the second plate 36 is provided with a cavity for the connecting plate 52 to move up and down, a second spring 521 is connected between the second plate 36 and the connecting plate 52, the connecting plate 52 is connected with an operating plate 522, the operating plate 522 penetrates the second plate 36 for operation, and the distance between the opposite sides of the movable plate 51 is equal to the distance between the opposite sides of the fixed plate 331.

[0031] Its working principle is: when the size and weight of the vehicle body or parts to be painted change, different lifting trolleys are needed for lifting, and the distance between the baffles 3 is adjusted according to the neck diameter of the lifting trolley. When the painting mechanized conveyor line chain is running, the lifting trolley runs under the push of the chain block. When it hits the backstop baffle 3, the lifting trolley will push the baffle 3 to rotate, thereby driving the ratchet 23 pawl 122 to rotate; when the chain breaks, the lifting device slides backward due to the action of gravity. When it hits the baffle 3, the pawl 122 is stuck on the teeth of the ratchet 23 to prevent the lifting device from sliding backward and causing damage to the lifting device; when the neck diameter of the lifting trolley increases, it needs to be increased The distance before the wide baffle 3, at this time, manually drive the connecting rod 411 of the first fixed part 4, squeeze the first spring through the handle, pull the connecting rod 411 out of the connecting hole 224 and drive the second slat 34 to move on the rotating disk 22 through the second rod 35, so that the second slat 34 and the first slat 31 are aligned up and down, and the movable plate 51 is driven by the operating plate 522 to make the second slat 34 and the first slat 31 vertically aligned smoothly, release the operating plate 522, the second spring 521 naturally extends and pushes the movable plate 51 out of the second plate 36 and against the fixed plate 331, and then release the handle, the first spring 42 naturally extends and pushes the connecting rod 411 into the connecting hole 224.

Claims

1. A ratchet pawl type backstop, characterized in that: The invention comprises a mounting plate (1), wherein the mounting plate (1) is provided with a rotating part (2), the rotating part (2) is provided with a ratchet (23), the mounting plate (1) is provided with a pawl (122), the pawl (122) is meshed with the ratchet (23), the rotating part (2) is connected to a plurality of baffles (3), the baffles (3) comprise a first slat (31) and a second slat (34), the first slat (31) is fixedly connected to the rotating part (2), the second slat (34) is movably connected to the rotating part (2), the second slat (34) is provided with a first fixing part (4) and a second fixing part (5), the second slat (34) is fixed to the rotating part (2) via the first fixing part (4), and the second slat (34) is fixed to the first slat (31) via the second fixing part (5).

2. A ratchet pawl type backstop according to claim 1, characterized in that: The mounting plate (1) comprises an upper plate (11) and a lower plate (12), wherein the upper plate (11) and the lower plate (12) are respectively located at the upper and lower ends of the machine, and the rotating part (2) comprises a rotating shaft (21) arranged on the upper plate (11), and a rotating disk (22) rotatably connected to the rotating shaft (21), wherein the rotating disk (22) is located at the bottom of the upper plate (11), and a first bearing (221) is arranged between the rotating disk (22) and the rotating shaft (21).

3. A ratchet pawl type backstop according to claim 2, characterized in that: The ratchet (23) is rotatably connected to the rotating shaft (21) and is located at the bottom end of the rotating disk (22); a second bearing (231) is connected between the ratchet (23) and the rotating shaft (21); and a bolt (24) is connected between the ratchet (23) and the rotating disk (22).

4. A ratchet pawl type backstop according to claim 3, characterized in that: The lower plate (12) is located at the bottom end of the ratchet (23), the top end of the lower plate (12) is connected to a base (121), and the ratchet pawl (122) is rotatably connected to the base (121).

5. A ratchet pawl type backstop according to claim 4, characterized in that: The first slat (31) is fixedly connected to the rotating disk (22), a guide ring (222) is provided on the surface of the rotating disk (22), and the second slat (34) is slidably connected to the guide ring (222).

6. A ratchet pawl type backstop according to claim 5, characterized in that: The rotating disk (22) is provided with guide rings (222) on both upper and lower surfaces, and the guide rings (222) on both upper and lower sides are slidably connected with second slats (34), and the number of second slats (34) slidably connected to the upper surface of the rotating disk (22) is equal to the number of second slats (34) slidably connected to the lower surface of the rotating disk (22), and are respectively equal to the number of the first slats (31).

7. A ratchet pawl type backstop according to claim 6, characterized in that: The baffle (3) is provided with a rod and a plate, the first plate strip (31) includes a first rod (32) and a first plate (33), the second plate strip (34) includes a second rod (35) and a second plate (36), the first rod (32) is fixedly connected to the rotating disk (22), fixed plates (331) are symmetrically provided on both sides of the first plate (33), and the first plate (33) and the second plate (36) are congruent.

8. A ratchet pawl type backstop according to claim 7, characterized in that: The outer ring of the guide ring (222) is provided with a guide groove (223), and the guide groove (223) is provided with a groove (2231). The end of the second rod (35) is provided with a connecting cavity (351), and a connecting shaft (352) is provided through the connecting cavity (351). The upper and lower ends of the connecting shaft (352) are embedded in the groove (2231). The connecting shaft (352) is located in the connecting cavity (351) and is rotatably connected to a guide wheel (353), and the guide wheel (353) is tangent to the guide groove (223).

9. A ratchet pawl type backstop according to claim 8, characterized in that: The first fixing portion (4) comprises a mounting frame (41) arranged on the second rod (35), a connecting rod (411) slidably connected to the mounting frame (41), a first spring (42) being connected between the connecting rod (411) and the mounting frame (41), and a plurality of connecting holes (224) corresponding to the connecting rod (411) are formed on the surface of the rotating disk (22).

10. A ratchet pawl type backstop according to claim 9, characterized in that: The second fixed portion (5) comprises a movable plate (51) slidably connected to the second plate member (36), and a connecting plate (52) connected to the movable plate (51); a second spring (521) is connected between the connecting plate (52) and the second plate member (36); the connecting plate (52) is provided with an operating plate (522); the operating plate (522) penetrates the second plate member (36); and the distance between the two opposite sides of the movable plate (51) is equal to the distance between the two opposite sides of the fixed plate (331).

Images