Connecting pin shaft end oiling device of high-altitude platform

Abstract

The utility model relates to the technical field of lifting machinery, and discloses a connecting pin shaft end oiling device of a high-altitude platform, which comprises an inner shear fork rod, an outer shear fork rod is arranged on the front surface of the inner shear fork rod, a pin shaft and a fixing mechanism are rotatably sleeved on the inner surface of the inner shear fork rod and the inner surface of the outer shear fork rod, and the fixing mechanism is arranged on the pin shaft. The fixing mechanism is used for mounting and dismounting the pin shaft and comprises a fixing roller, the inner surface of the pin shaft is sleeved with the fixing roller in a sliding mode, two round holes are formed in the outer surface of the pin shaft, two round balls are arranged on the inner walls of the two round holes, an oil injection nozzle is arranged on the left surface of the pin shaft, and a sealing cover is arranged on the left surface of the oil injection nozzle. According to the oiling device for the connecting pin shaft end of the high-altitude platform, the pin shaft can be limited through the two telescopic balls, the function of an original pin is replaced, operation is easy, dismounting and mounting can be conducted without the help of additional tools during mounting and dismounting, operation is easy, rapid dismounting and mounting are easy to achieve, and more convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting machinery, in particular to a connecting pin shaft end oiling device for an aerial platform. Background Art

[0002] At present, the grease fittings installed on the connecting pin shaft ends of the scissor lift rods are used to inject grease into the shaft hole to lubricate the friction surface between the pin shaft and the shaft hole. Most manufacturers currently install grease fittings on the pin shaft ends by directly drilling and tapping on the shaft end. After the grease fittings are installed, they are exposed to the shaft end surface, which is unreasonable. People can easily accidentally damage or break them during use, and they need to be replaced with new ones during refueling and maintenance, which invisibly increases the workload and also increases the cost.

[0003] The existing patent CN204082881 U provides a scissor-type aerial work connecting pin shaft end oiling device. The device has a simple structure, changes the installation structure, prolongs the service life of the grease nipple, and reduces the cost of use. However, when installing it, the pin still needs to be inserted into the pin shaft to complete the fixation. The pin and the pin shaft are two separate individuals. During storage, one of them may be lost, resulting in the entire device being unusable. In view of this, a connecting pin shaft end oiling device for a high-altitude platform is now proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a refueling device for a connecting pin shaft end of an aerial platform, which solves the problem of inconvenience in installation caused by the need to use a pin when installing the pin shaft.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of installing and fixing the pin shaft through the pin shaft structure itself, the utility model provides the following technical solutions: a connecting pin shaft end oiling device for a high-altitude platform, comprising an inner scissor fork rod, an outer scissor fork rod is arranged on the front surface of the inner scissor fork rod, and the inner surfaces of the inner scissor fork rod and the outer scissor fork rod are rotatably sleeved with a pin shaft;

[0008] The fixing mechanism is arranged on the pin shaft and is used for installing and disassembling the pin shaft. The fixing mechanism comprises a fixing rod which is slidably sleeved on the inner surface of the pin shaft.

[0009] The outer surface of the pin shaft is provided with two circular holes, and the inner walls of the two circular holes are provided with two round balls.

[0010] Preferably, an oil filling nozzle is provided on the left surface of the pin shaft, and a sealing cover is provided on the left surface of the oil filling nozzle.

[0011] Preferably, a countersunk hole is formed on the outer surface of the pin shaft.

[0012] Preferably, the fixing mechanism further comprises a spring and a ring, the spring is fixedly mounted in the inner wall of the slide groove, the ring is fixedly mounted on the left end of the spring, and the ring is fixedly sleeved on the outer surface of the fixing rod.

[0013] Preferably, two grooves are provided on the outer surface of the fixing rod, and the right end of the fixing rod is fixedly mounted on the pull ring.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a connecting pin shaft end refueling device for an aerial platform, which has the following beneficial effects:

[0016] 1. The oiling device at the connecting pin end of the aerial platform can limit the pin by two retractable balls, replacing the original pin. It is easy to operate and does not require additional tools for installation and disassembly. It is easy to operate and easy to achieve quick disassembly and assembly, which is more convenient.

[0017] 2. The oiling device at the connecting pin shaft end of the aerial platform can seal the oiling nozzle through a rubber sealing cover to isolate it from the external environment when not in use, thereby preventing the oiling nozzle from being blocked due to pollution from the external environment and facilitating the stable operation of the oiling nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a connecting pin shaft end refueling device for an aerial platform of the utility model;

[0019] Figure 2 This is a schematic diagram of the pin structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the pin shaft of the utility model.

[0021] In the figure: 1. Inner scissor fork rod; 2. Outer scissor fork rod; 3. Pin shaft; 4. Countersunk hole; 5. Grease nozzle; 6. Rubber sealing cover; 7. Round hole; 8. Round ball; 9. Slide groove; 10. Spring; 11. Round ring; 12. Fixing rod; 13. Groove; 14. Pull ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] See also Figure 1-3 The utility model provides a new technical solution: a connecting pin shaft end oiling device for a high-altitude platform, comprising an inner scissor fork rod 1, an outer scissor fork rod 2 is arranged on the front surface of the inner scissor fork rod 1, and a pin shaft 3 is rotatably sleeved on the inner surfaces of the inner scissor fork rod 1 and the outer scissor fork rod 2;

[0024] The fixing mechanism is arranged on the pin shaft 3 , and is used for installing and removing the pin shaft 3 . The fixing mechanism comprises a fixing rod 12 , and the fixing rod 12 is slidably sleeved on the inner surface of the pin shaft 3 .

[0025] Furthermore, two circular holes 7 are formed on the outer surface of the pin shaft 3 , and two round balls 8 are disposed on the inner walls of the two circular holes 7 .

[0026] Furthermore, a grease nozzle 5 is disposed on the left surface of the pin shaft 3 , and a sealing cover 6 is disposed on the left surface of the grease nozzle 5 .

[0027] Furthermore, a countersunk hole 4 is formed on the outer surface of the pin shaft 3 .

[0028] Furthermore, the fixing mechanism also includes a spring 10 and a ring 11. The spring 10 is fixedly installed in the inner wall of the slide groove 9, the ring 11 is fixedly installed at the left end of the spring 10, and the ring 11 is fixedly sleeved on the outer surface of the fixing rod 12.

[0029] Furthermore, two grooves 13 are formed on the outer surface of the fixing rod 12, and the right end of the fixing rod 12 is fixedly mounted on the pull ring 14;

[0030] When the oiling device at the connecting pin shaft end of the aerial platform is in use, by pulling the pull ring 14, the pull ring 14 drives the fixed rod 12 fixedly installed on the left surface to move to the right, and at the same time, the fixed rod 12 drives the circular ring 11 fixedly sleeved on the outer surface to move to the right. When the circular ring 11 moves to the right, it applies pressure to the spring 10 fixedly installed on the right surface to cause it to shrink. At the same time, the groove 13 provided on the outer surface of the fixed rod 12 is aligned with the circular hole 7 provided on the outer surface of the pin shaft 3. At this time, the fixed rod 12 does not apply pressure to the round ball 8 provided in the circular hole 7. At this time, the round ball 8 shrinks into the slide groove 9 provided on the inner surface of the pin shaft 3. At this time, the pin shaft is passed through the inner surfaces of the inner scissor fork rod 1 and the outer scissor fork rod 2 to complete the installation. At this time, the pull ring 1 is no longer pressed. 4 applies a pulling force, and the spring 10 is no longer under stress. At this time, the spring 10 expands. The spring 10 expands through its own elastic potential energy. At this time, the spring 10 applies a leftward thrust to the circular ring 11 fixedly installed at the left end, so that it moves to the left. At the same time, the circular ring 11 drives the fixed rod 12 fixedly installed on the inner surface to move to the left. At this time, the fixed rod 12 hits the two round balls 8 and applies a thrust on the opposite side to the round balls 8, so that they protrude from the pin 3 to form a convex surface. At this time, the convex surface is larger than the diameter of the hole opened on the inner surface of the inner scissor rod 1 and the outer scissor rod 2, forming a limit. At this time, the installation is completed. After subsequent use, it is the same as in the comparative patent. By opening the rubber sealing cover 6, the oiling nozzle 5 can be exposed for oiling;

[0031] The oiling device at the connecting pin shaft end of the aerial platform can limit the pin shaft by two retractable round balls, replacing the function of the original pin, and is easy to operate. No additional tools are required for disassembly and assembly during installation and disassembly. The operation is simple and easy to achieve quick disassembly and assembly, which is more convenient. The oiling device at the connecting pin shaft end of the aerial platform can seal the oiling nozzle by a rubber sealing cover to isolate it from the external environment when not in use, thereby preventing the oiling nozzle from being blocked due to pollution from the external environment, and facilitating the stable operation of the oiling nozzle.

[0032] Working principle: When the oiling device at the connecting pin end of the aerial platform is used, the pull ring 14 is pulled, and the pull ring 14 drives the fixed stick 12 fixed on the left surface to move to the right, and at the same time, the fixed stick 12 drives the circular ring 11 fixed on the outer surface to move to the right. When the circular ring 11 moves to the right, it applies pressure to the spring 10 fixed on the right surface to shrink it. At the same time, the groove 13 on the outer surface of the fixed stick 12 is aligned with the circular hole 7 on the outer surface of the pin 3. At this time, the fixed stick 12 does not apply pressure to the round ball 8 set in the circular hole 7. At this time, the round ball 8 shrinks into the slide groove 9 on the inner surface of the pin 3. At this time, the pin is passed through the inner surfaces of the inner scissor rod 1 and the outer scissor rod 2 to complete the installation. At this time, it is no longer aligned with the inner surface of the inner scissor rod 1 and the outer scissor rod 2. The pull ring 14 applies a pulling force, and the spring 10 is no longer under force. At this time, the spring 10 expands. The spring 10 expands through its own elastic potential energy. At this time, the spring 10 applies a leftward thrust to the circular ring 11 fixedly installed at the left end, causing it to move to the left. At the same time, the circular ring 11 drives the fixed rod 12 fixedly installed on the inner surface to move to the left. At this time, the fixed rod 12 hits the two balls 8 and applies an opposite thrust to the balls 8, causing them to protrude from the pin 3 to form a convex surface. At this time, the convex surface is larger than the diameter of the holes opened on the inner surfaces of the inner scissor rod 1 and the outer scissor rod 2, forming a limit. At this time, the installation is completed. After subsequent use, as in the comparative patent, the oiling nozzle 5 can be exposed for oiling by opening the rubber sealing cover 6.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting pin shaft end oiling device for an aerial platform, comprising an inner scissor rod (1), an outer scissor rod (2) being arranged on the front surface of the inner scissor rod (1), characterized in that: The inner surfaces of the inner scissor rod (1) and the outer scissor rod (2) are rotatably sleeved with pin shafts (3); A fixing mechanism, the fixing mechanism is arranged on the pin shaft (3), the fixing mechanism is used for installing and removing the pin shaft (3), the fixing mechanism comprises a fixing rod (12), and the fixing rod (12) is slidably sleeved on the inner surface of the pin shaft (3); The outer surface of the pin shaft (3) is provided with two circular holes (7), and the inner walls of the two circular holes (7) are provided with two round balls (8).

2. The connecting pin shaft end refueling device of the aerial platform according to claim 1, characterized in that: The left surface of the pin shaft (3) is provided with an oil injection nozzle (5), and the left surface of the oil injection nozzle (5) is provided with a sealing cover (6).

3. The connecting pin shaft end oiling device of the aerial platform according to claim 1 is characterized in that: The outer surface of the pin shaft (3) is provided with a countersunk hole (4).

4. The connecting pin shaft end refueling device of the aerial platform according to claim 1, characterized in that: The fixing mechanism further comprises a spring (10) and a ring (11), wherein the spring (10) is fixedly mounted in the inner wall of the slide groove (9), the ring (11) is fixedly mounted at the left end of the spring (10), and the ring (11) is fixedly sleeved on the outer surface of the fixing rod (12).

5. The connecting pin shaft end refueling device of the aerial platform according to claim 1, characterized in that: The outer surface of the fixing rod (12) is provided with two grooves (13), and the right end of the fixing rod (12) is fixedly mounted on the pull ring (14).

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