Cylinder type lifting cylinder with protection structure

Abstract

The utility model discloses a barrel-type lifting cylinder with a protection structure, relates to the technical field of barrel-type lifting cylinders, and solves the problems that the barrel-type lifting cylinder is inevitably hit during use, and when the barrel-type lifting cylinder is hit, the influence of gravity is easy to cause injury to vehicle maintenance personnel, so that the service life of the vehicle maintenance personnel is prolonged. The barrel type lifting cylinder comprises a cylinder body, a lifting rod and a piston barrel, the lifting rod is slidably connected to the interior of the cylinder body, a supporting block is fixedly installed at the top end of the lifting rod, a fixing plate is fixedly installed on the right side wall of the supporting block, and the piston barrel is matched with a piston rod, so that the safety of the barrel type lifting cylinder is improved. When the lifting rod in the lifting cylinder moves, the piston rod can be driven to move up and down, the air pressure in the piston barrel can be increased and decreased, the lifting rod can move up and down slowly through the air pressure in the piston barrel, the lifting rod can reset slowly even if the cylinder smashing phenomenon occurs, and the safety of the lifting rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of barrel-type lifting cylinders, in particular to a barrel-type lifting cylinder with a protection structure. Background Art

[0002] When the car inspects the components in the engine compartment, the cab must be turned over by the cab lifting mechanism to facilitate the inspection of the engine compartment. After searching, the patent with the announcement number CN208149461U discloses a lifting cylinder and a cab lifting mechanism. The lifting cylinder includes a cylinder body and a piston rod, one end of the piston rod is exposed from the cylinder body, and the other end forms a piston, the piston is sealed and slidably matched with the inner wall of the cylinder body, and the piston divides the cylinder body into a first chamber and a second chamber that are independent of each other; it also includes a first pipeline, a second pipeline and a third pipeline, wherein the first pipeline is connected to the first chamber, the second pipeline is connected to the second chamber, and the two ends of the third pipeline are respectively connected to the first chamber and the second chamber; an electromagnetic valve is arranged on the third pipeline. The lifting cylinder and cab lifting mechanism of the utility model can not only realize the turning of the cab, but also provide a shock absorption effect for driving during driving. The shock absorption effect is achieved by balancing the pressure of the first chamber and the second chamber through the third pipeline. However, the cylinder type lifting cylinder is inevitably subject to the phenomenon of cylinder smashing during use. When the cylinder smashing occurs, the influence of gravity can easily cause harm to personnel who are repairing the vehicle, thereby reducing the safety of the cylinder type lifting cylinder. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a barrel-type lifting cylinder with a protective structure, which solves the problem that the barrel-type lifting cylinder is inevitably smashed when in use. When the cylinder is smashed, it is easy to cause harm to personnel who are repairing the vehicle due to the influence of gravity, thus reducing the safety of the barrel-type lifting cylinder.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a cylinder-type lifting cylinder with a protective structure, comprising a cylinder body, a lifting rod and a piston cylinder, the lifting rod is slidably connected to the inside of the cylinder body, a support block is fixedly installed on the top of the lifting rod, a fixing plate is fixedly installed on the right side wall of the support block, a piston rod is fixedly installed on the bottom surface of the fixing plate, two connecting blocks are fixedly installed on the right side of the cylinder body, a piston cylinder is provided on the right side of the cylinder body, the left side wall of the piston cylinder is fixedly connected to the right side walls of the two connecting blocks, the piston rod is slidably connected to the inside of the piston cylinder, the lower end of the piston rod is fixedly connected to a piston, and is slidably connected to the inner side wall of the piston cylinder, and a through hole is provided inside the side wall below the right end of the piston cylinder.

[0005] Preferably, a push rod is fixedly installed on the bottom surface of the fixed plate, a fixed block is fixedly installed on the right end side wall of the cylinder body, a movable plate is arranged above the fixed block, and the movable plate is slidably sleeved on the rod wall of the piston rod due to the fixed block, a tensioning spring and a telescopic rod are fixedly installed between the fixed block and the movable plate, and the telescopic rod is arranged between the tensioning springs, so that the protection of the barrel-type lifting cylinder can be further strengthened through the cooperation between the push rod and the tensioning spring.

[0006] Preferably, a limiting ring is fixedly installed inside the upper end of the piston cylinder, and a limiting plate is fixedly sleeved on the rod wall of the piston rod. The diameter of the limiting plate is larger than the internal diameter of the limiting ring, and the inner diameter of the limiting ring is larger than the diameter of the piston rod, so that the piston rod can be limited by the limiting ring.

[0007] Preferably, a filter tube is fixedly connected to the inside of the through hole, so as to prevent dust from entering the inside of the piston cylinder when the piston rod moves upward.

[0008] The utility model provides a barrel-type lifting cylinder with a protective structure. It has the following beneficial effects:

[0009] 1. The barrel-type lifting cylinder with a protective structure, when using the barrel-type lifting cylinder with a protective structure, can drive the piston rod to move up and down when the lifting rod in the lifting cylinder moves through the cooperation between the piston barrel and the piston rod, and can raise and lower the air pressure in the piston barrel. The air pressure in the piston barrel can make the lifting rod move up and down slowly, and even if the cylinder is smashed, the lifting rod can be reset slowly, thereby enhancing its safety;

[0010] 2. When the barrel-type lifting cylinder with a protective structure is used, the cooperation between the set push rod and the movable plate can effectively squeeze the fixed plate in cooperation with the tensioning spring, thereby further slowing down the descending speed of the lifting rod 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a side view of the utility model;

[0013] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of part A;

[0014] Figure 4 This is a schematic diagram of the piston rod structure of the utility model;

[0015] Figure 5 For this utility model Figure 2Schematic diagram of the structure of part B;

[0016] Figure 6 For this utility model Figure 2 Schematic diagram of the structure of part C.

[0017] In the figure, 1-cylinder body, 2-lifting rod, 3-support block, 4-fixed plate, 5-movable plate, 6-fixed block, 7-piston cylinder, 8-connecting block, 9-filter tube, 10-tensioning spring, 11-telescopic rod, 12-piston rod, 13-limiting plate, 14-piston, 15-limiting ring, 16-through hole, 17-top rod. DETAILED DESCRIPTION

[0018] 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.

[0019] Example 1

[0020] See also Figure 1-6 The embodiment of the utility model provides a cylinder-type lifting cylinder with a protective structure, including a cylinder body 1, a lifting rod 2 and a piston cylinder 7. The lifting rod 2 is slidably connected to the inside of the cylinder body 1. A support block 3 is fixedly installed on the top of the lifting rod 2. A fixing plate 4 is fixedly installed on the right side wall of the supporting block 3. A piston rod 12 is fixedly installed on the bottom surface of the fixing plate 4. Two connecting blocks 8 are fixedly installed on the right side of the cylinder body 1. A piston cylinder 7 is arranged on the right side of the cylinder body 1. The left side wall of the piston cylinder 7 is fixedly connected to the right side walls of the two connecting blocks 8. The piston rod 12 is slidably connected to the inside of the piston cylinder 7. The lower end of the piston rod 12 is fixedly connected to a piston 14, and is fixedly connected to the inside of the piston cylinder 7. The side walls are slidably connected, and a through hole 16 is provided inside the side wall below the right end of the piston cylinder 7. A filter tube 9 is fixedly connected inside the through hole 16. When the lifting rod 2 of the barrel-type lifting cylinder moves upward, the support block 3 moves upward, and the piston rod 12 can be driven to move upward through the fixed plate 4 that is fixedly connected. Under the action of the piston 14, the external gas can be drawn into the interior of the piston cylinder 7 through the through hole 16 to increase the pressure inside the piston cylinder 7. Even if the barrel-type lifting cylinder has a cylinder smashing phenomenon, when the lifting rod 2 descends, the air pressure in the piston cylinder 7 can be used to slow down the descending rate of the piston rod 12, which can drive the lifting rod 2 to descend slowly.

[0021] Example 2

[0022] In this embodiment, Figure 1-6As shown, a push rod 17 is fixedly installed on the bottom surface of the fixed plate 4, a fixed block 6 is fixedly installed on the right end side wall of the cylinder body 1, and a movable plate 5 is arranged above the fixed block 6. The movable plate 5 is slidably sleeved on the rod wall of the piston rod 12 due to the fixed block 6. A tensioning spring 10 and a telescopic rod 11 are fixedly installed between the fixed block 6 and the movable plate 5. The telescopic rod 11 is arranged between the tensioning spring 10. When the lifting rod 2 is descending, the push rod 17 will squeeze the movable plate 5, and the movable plate 5 will slide on the piston rod 12 and compress the tensioning spring 10. Under the action of the tensioning spring 10, the descending rate of the lifting rod 2 can be further reduced.

[0023] Example 3

[0024] In this embodiment, Figure 1-6 As shown, a limiting ring 15 is fixedly installed inside the upper end of the piston cylinder 7, and a limiting plate 13 is fixedly sleeved on the rod wall of the piston rod 12. The diameter of the limiting plate 13 is larger than the inner diameter of the limiting ring 15, and the inner diameter of the limiting ring 15 is larger than the diameter of the piston rod 12. When the piston rod 12 moves, in order to prevent the piston rod 12 from falling off the inside of the piston cylinder 7, the limiting ring 15 can be used to limit the piston rod 12.

[0025] It should be noted that in this embodiment, when using a barrel-type lifting cylinder with a protective structure, Figure 1-6 As shown, when the lifting rod 2 of the barrel-type lifting cylinder moves upward, the support block 3 moves upward, and the fixed plate 4 connected thereto can drive the piston rod 12 to move upward. Under the action of the piston 14, the external gas can be drawn into the interior of the piston barrel 7 through the through hole 16, thereby increasing the pressure inside the piston barrel 7. Even if the barrel-type lifting cylinder has a cylinder smashing phenomenon, when the lifting rod 2 descends, the air pressure in the piston barrel 7 can slow down the descending rate of the piston rod 12, which can drive the lifting rod 2 to descend slowly. At the same time, the push rod 17 squeezes the movable plate 5, and the movable plate 5 slides on the piston rod 12, and compresses the tensioning spring 10. Under the action of the tensioning spring 10, the descending rate of the lifting rod 2 can be further reduced.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A barrel-type lifting cylinder with a protective structure, characterized in that: The invention comprises a cylinder body (1), a lifting rod (2) and a piston cylinder (7), wherein the lifting rod (2) is slidably connected to the inside of the cylinder body (1), a support block (3) is fixedly installed on the top of the lifting rod (2), a fixing plate (4) is fixedly installed on the right side wall of the supporting block (3), a piston rod (12) is fixedly installed on the bottom surface of the fixing plate (4), two connecting blocks (8) are fixedly installed on the right side of the cylinder body (1), a piston cylinder (7) is arranged on the right side of the cylinder body (1), the left side wall of the piston cylinder (7) is fixedly connected to the right side walls of the two connecting blocks (8), the piston rod (12) is slidably connected to the inside of the piston cylinder (7), the lower end of the piston rod (12) is fixedly connected to a piston (14), and is slidably connected to the inner side wall of the piston cylinder (7), and a through hole (16) is arranged inside the side wall below the right end of the piston cylinder (7).

2. The barrel-type lifting cylinder with a protective structure according to claim 1, characterized in that: A push rod (17) is fixedly mounted on the bottom surface of the fixed plate (4), a fixed block (6) is fixedly mounted on the right end side wall of the cylinder body (1), a movable plate (5) is arranged above the fixed block (6), the movable plate (5) is slidably sleeved on the rod wall of the piston rod (12) due to the fixed block (6), a tensioning spring (10) and a telescopic rod (11) are fixedly mounted between the fixed block (6) and the movable plate (5), and the telescopic rod (11) is arranged between the tensioning spring (10).

3. The barrel-type lifting cylinder with a protective structure according to claim 1, characterized in that: A limiting ring (15) is fixedly installed inside the upper end of the piston cylinder (7), and a limiting plate (13) is fixedly sleeved and installed on the rod wall of the piston rod (12). The diameter of the limiting plate (13) is larger than the inner diameter of the limiting ring (15), and the inner diameter of the limiting ring (15) is larger than the diameter of the piston rod (12).

4. The barrel-type lifting cylinder with a protective structure according to claim 1, characterized in that: A filter tube (9) is fixedly connected inside the through hole (16).

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