Oil cylinder sleeve convenient to overhaul

Abstract

The utility model relates to the field of oil cylinder sleeves, and discloses an oil cylinder sleeve convenient to overhaul, which comprises a lower oil cylinder sleeve, an upper oil cylinder sleeve is inserted into the top end of the lower oil cylinder sleeve, an oil inlet hole is formed in the top end of the upper oil cylinder sleeve, a sealing plate is fixedly connected to the left end of the upper oil cylinder sleeve, a rubber ring is fixedly connected to the outer wall of the sealing plate, and the rubber ring is fixedly connected to the outer wall of the sealing plate. A sealing groove is formed in the top end of the lower oil cylinder sleeve, the rubber ring is matched with the sealing groove, a piston rod is installed on the inner wall of the lower oil cylinder sleeve, a fixing assembly is arranged on the outer wall of the lower oil cylinder sleeve and comprises a fixing plate, the rear end of the fixing plate is fixedly connected to the front end of the upper oil cylinder sleeve, and the rear end of the fixing plate is fixedly connected to the front end of the lower oil cylinder sleeve. And the front end of the lower oil cylinder sleeve is fixedly connected with a fixed box. According to the oil cylinder sleeve fixing device, the clamping block is arranged, the fixing plate can be fixed, in this way, even if the bolt is loosened, the clamping block can achieve the effect of fixing the upper oil cylinder sleeve by fixing the fixing plate, and the fixing effect of the whole device is good.

Description

Technical Field

[0001] The utility model relates to the field of oil cylinder sleeves, in particular to an oil cylinder sleeve which is convenient for maintenance. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and can perform linear reciprocating motion. Due to its simplicity, it is widely used. Existing hydraulic cylinders are mostly composed of cylinder sleeves, slide rods and other components, among which the cylinder sleeves are generally manufactured in one piece, which makes it more difficult to repair and inspect the interior.

[0003] After searching, the Chinese patent announcement number: CN216554732U discloses a cylinder sleeve for a balancing oil cylinder that is easy to disassemble and repair. Its technical solution includes: a first cylinder sleeve, a second cylinder sleeve and a connecting sleeve. The second cylinder sleeve is fixedly installed on the top of the first cylinder sleeve, and an oil filling port is set on the top of the second cylinder sleeve. The internal thread of the first cylinder sleeve is installed with a telescopic rod, and a connecting ring is fixedly installed on one end of the telescopic rod. The connecting sleeve is threadedly installed on one side of the first cylinder sleeve and the second cylinder sleeve. By providing a fixed shaft, a mounting block and a threaded section that cooperate with each other, it is relatively convenient to separate the first cylinder sleeve from the second cylinder sleeve through the fixed shaft and the mounting block, so that the inside of the first cylinder sleeve can be repaired, which is more convenient in the process of separation and closing, increasing the convenience of maintenance, and convenient and quick operation.

[0004] When the device is in use, the first cylinder sleeve and the second cylinder sleeve can be separated for easy maintenance. However, the device is fixed only by bolts. However, a large amount of vibration will be generated during the driving of the car, which may cause the bolts to loosen. In this way, the seal between the first cylinder sleeve and the second cylinder sleeve will be destroyed, and the fixing effect of the overall device is poor. Therefore, a cylinder sleeve that is easy to maintain is proposed to solve the above problem. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides an oil cylinder sleeve that is easy to maintain, aiming to improve the problem in the prior art that "fixation is achieved only by bolts, which may become loose during fixation, and the fixing effect of the overall device is poor".

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cylinder sleeve that is easy to maintain, including a lower cylinder sleeve, an upper cylinder sleeve is inserted into the top end of the lower cylinder sleeve, an oil inlet hole is arranged at the top end of the upper cylinder sleeve, a closing plate is fixedly connected to the left end of the upper cylinder sleeve, a rubber ring is fixedly connected to the outer wall of the closing plate, a closing groove is arranged at the top end of the lower cylinder sleeve, the rubber ring and the closing groove are matched, a piston rod is installed on the inner wall of the lower cylinder sleeve, and a fixing component is arranged on the outer wall of the lower cylinder sleeve.

[0007] As a further description of the above technical solution:

[0008] The fixing assembly comprises a fixing plate, the rear end of which is fixedly connected to the front end of the upper cylinder sleeve, the front end of the lower cylinder sleeve is fixedly connected to a fixing box, and the fixing plate and the fixing box are fixedly connected by bolts.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the fixing box is slidably connected with a clamping block, and the right end of the fixing plate is provided with a clamping slot, and the clamping slot and the clamping block are adapted to each other.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the clamping block is fixedly connected with a slide plate, the slide plate penetrates and slides on the right end of the fixed box, and the right end of the slide plate is fixedly connected with an arc block.

[0013] As a further description of the above technical solution:

[0014] The left end of the slide plate is fixedly connected with a fixing spring, and the left end of the fixing spring is fixedly connected to the inner wall of the fixing box.

[0015] As a further description of the above technical solution:

[0016] There are multiple groups of fixed boxes, slide plates and arc blocks. Another group of fixed boxes, slide plates and arc blocks are arranged on the outer wall of the lower cylinder sleeve near the left end. The left end of the arc block is fixedly connected with a connecting rod, and the left end of the connecting rod is fixedly connected to the right end of another group of arc blocks.

[0017] As a further description of the above technical solution:

[0018] The right end of the lower oil cylinder sleeve is fixedly connected with a first threaded ring, the right end of the first threaded ring is fixedly connected with a second threaded ring, and the right end of the upper oil cylinder sleeve is fixedly connected with a third threaded ring.

[0019] As a further description of the above technical solution:

[0020] The third threaded ring is matched with the first threaded ring, the first threaded ring is matched with the second threaded ring, and the outer wall of the second threaded ring is threadedly connected with a thread block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the fixing plate can be fixed by setting a clamping block. In this way, even if the bolt is loose, the clamping block can fix the upper cylinder sleeve by fixing the fixing plate, and the fixing effect of the overall device is better.

[0023] 2. In the utility model, by rotating the threaded block, the threaded block can be driven to fix the right ends of the upper cylinder sleeve and the lower cylinder sleeve together. At the same time, the threaded block will also block the arc block so that the card block cannot be separated from the inside of the card slot. This can prevent the card block from being separated from the card slot due to accidental impact, and the overall device has better safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the overall device of the utility model in a disassembled state;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure section of the fixing box in the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure disassembly of the middle and lower cylinder sleeves of the utility model.

[0028] Legend:

[0029] 1. Upper cylinder sleeve; 2. Lower cylinder sleeve; 3. Oil inlet hole; 4. Piston rod; 5. Fixed assembly; 51. Fixed plate; 52. Fixed box; 53. Arc block; 54. Connecting rod; 55. First threaded ring; 56. Second threaded ring; 57. Third threaded ring; 58. Threaded block; 59. Clamping block; 510. Slide plate; 511. Fixed spring; 512. Clamping slot; 6. Closing plate; 7. Rubber ring; 8. Closing slot. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 , Figure 2 , Figure 4The utility model provides an embodiment: a cylinder sleeve that is easy to repair, including a lower cylinder sleeve 2 for accommodating a piston rod 4, an upper cylinder sleeve 1 for sealing the lower cylinder sleeve 2 is inserted at the top of the lower cylinder sleeve 2, an oil inlet hole 3 for hydraulic oil to enter the middle position of the upper cylinder sleeve 1 and the lower cylinder sleeve 2 is provided at the top of the upper cylinder sleeve 1, a closing plate 6 for further increasing the sealing performance of the connection between the upper cylinder sleeve 1 and the lower cylinder sleeve 2 is fixedly connected to the left end of the upper cylinder sleeve 1, and the outer wall of the closing plate 6 is fixedly A rubber ring 7 is connected to increase the sealing between the closing plate 6 and the lower cylinder sleeve 2. A closing groove 8 for accommodating the rubber ring 7 is provided at the top of the lower cylinder sleeve 2. The rubber ring 7 and the closing groove 8 are adapted to each other. When the upper cylinder sleeve 1 and the lower cylinder sleeve 2 are completely fitted, the outer wall of the rubber ring 7 will tightly squeeze the inner wall of the closing groove 8. The inner wall of the lower cylinder sleeve 2 is installed with a piston rod 4 for realizing piston movement. The outer wall of the lower cylinder sleeve 2 is provided with a fixing component 5 for fixing the upper cylinder sleeve 1 and the lower cylinder sleeve 2.

[0032] Reference Figure 1 - Figure 3 The fixing assembly 5 includes a fixing plate 51 for fixing the upper oil cylinder sleeve 1. The rear end of the fixing plate 51 is fixedly connected to the front end of the upper oil cylinder sleeve 1. When the upper oil cylinder sleeve 1 moves, it will drive the fixing plate 51 to move synchronously. The front end of the lower oil cylinder sleeve 2 is fixedly connected with a fixing box 52 for accommodating the fixing plate 51. The fixing plate 51 and the fixing box 52 are fixedly connected by bolts. The fixing plate 51 can be fixed to the top of the fixing box 52 by bolts. The inner wall of the fixing box 52 is slidably connected with a card block 59 for fixing the fixing plate 51. The right end of the fixing plate 51 is provided with a card block for accommodating The card slot 512 of the block 59 is adapted to the card slot 512. When the fixing plate 51 and the fixing box 52 are tightly fitted, the card block 59 will just be stuck into the inside of the card slot 512. At this time, the fixing plate 51 will not be able to separate from the top of the fixing box 52. The bottom end of the card block 59 is fixedly connected with a slide plate 510 for driving the card block 59 to move left and right. The slide plate 510 penetrates and slides on the right end of the fixing box 52. The right end of the slide plate 510 is fixedly connected with an arc block 53. By sliding the arc block 53 to the right, the card block 59 can be driven to move to the right and separate from the inside of the card slot 512.

[0033] Reference Figure 1 - Figure 3The left end of the slide plate 510 is fixedly connected with a fixing spring 511 for pulling the slide plate 510. The left end of the fixing spring 511 is fixedly connected to the inner wall of the fixing box 52. The fixing spring 511 will always pull the fixing spring 511 to the left. The fixing box 52, the slide plate 510, and the arc block 53 are provided in multiple groups. Another group of fixing boxes 52, slide plates 510, and arc blocks 53 are arranged on the outer wall of the lower cylinder sleeve 2 near the left end. In this way, the left and right ends of the upper cylinder sleeve 1 can be fixed synchronously. The left end of the arc block 53 is fixedly connected with a connecting rod 54 for driving the arc block 53 to move to the right. The left end of the connecting rod 54 is fixedly connected to the right end of another group of arc blocks 53. When one group of arc blocks 53 is moved, the other group of arc blocks 53 will also move synchronously under the action of the connecting rod 54.

[0034] Reference Figure 1 - Figure 3 The right end of the lower cylinder sleeve 2 is fixedly connected with a first threaded ring 55 for connecting the upper cylinder sleeve 1 and the lower cylinder sleeve 2, and the right end of the first threaded ring 55 is fixedly connected with a second threaded ring 56 for guiding a threaded block 58. The right end of the upper cylinder sleeve 1 is fixedly connected with a third threaded ring 57 for cooperating with the first threaded ring 55. The third threaded ring 57 is adapted to the first threaded ring 55, and the first threaded ring 55 is adapted to the second threaded ring 56. The outer wall of the second threaded ring 56 is threadedly connected with a threaded block 58. By rotating the threaded block 58, it can be driven to move from the outer wall of the second threaded ring 56 to the outer walls of the first threaded ring 55 and the third threaded ring 57. In this way, the right ends of the upper cylinder sleeve 1 and the lower cylinder sleeve 2 can be fixed, and at the same time, the threaded block 58 will also block the arc block 53 so that it cannot move to the right.

[0035] Working principle: When maintenance is required, it is necessary to first rotate the threaded block 58 to drive it to move from the outer wall of the third threaded ring 57 and the first threaded ring 55 to the outer wall of the second threaded ring 56, and then all the bolts connecting the fixing plate 51 and the fixing box 52 can be removed, and finally the arc block 53 can be pushed to the right to drive the clamping block 59 to move to the right to disengage from the clamping slot 512, and then the upper cylinder sleeve 1 can be pulled upward to remove it. The overall device is more convenient during maintenance.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylinder sleeve convenient for maintenance, comprising a lower cylinder sleeve (2), characterized in that: The top end of the lower oil cylinder sleeve (2) is plugged with the upper oil cylinder sleeve (1), the top end of the upper oil cylinder sleeve (1) is provided with an oil inlet hole (3), the left end of the upper oil cylinder sleeve (1) is fixedly connected with a closing plate (6), the outer wall of the closing plate (6) is fixedly connected with a rubber ring (7), the top end of the lower oil cylinder sleeve (2) is provided with a closing groove (8), the rubber ring (7) and the closing groove (8) are matched, the inner wall of the lower oil cylinder sleeve (2) is installed with a piston rod (4), and the outer wall of the lower oil cylinder sleeve (2) is provided with a fixing component (5).

2. The oil cylinder sleeve convenient for maintenance according to claim 1, characterized in that: The fixing assembly (5) comprises a fixing plate (51), the rear end of the fixing plate (51) is fixedly connected to the front end of the upper oil cylinder sleeve (1), the front end of the lower oil cylinder sleeve (2) is fixedly connected to a fixing box (52), and the fixing plate (51) and the fixing box (52) are fixedly connected by bolts.

3. The oil cylinder sleeve convenient for maintenance according to claim 2, characterized in that: The inner wall of the fixing box (52) is slidably connected with a clamping block (59), and the right end of the fixing plate (51) is provided with a clamping slot (512), and the clamping slot (512) and the clamping block (59) are adapted to each other.

4. The oil cylinder sleeve convenient for maintenance according to claim 3, characterized in that: The bottom end of the clamping block (59) is fixedly connected to a slide plate (510), the slide plate (510) penetrates and slides on the right end of the fixed box (52), and the right end of the slide plate (510) is fixedly connected to an arc block (53).

5. The oil cylinder sleeve convenient for maintenance according to claim 4, characterized in that: The left end of the slide plate (510) is fixedly connected to a fixing spring (511), and the left end of the fixing spring (511) is fixedly connected to the inner wall of the fixing box (52).

6. The oil cylinder sleeve convenient for maintenance according to claim 5, characterized in that: The fixing box (52), the slide plate (510), and the arc block (53) are provided in multiple groups. Another group of the fixing box (52), the slide plate (510), and the arc block (53) is arranged on the outer wall of the lower cylinder sleeve (2) near the left end. The left end of the arc block (53) is fixedly connected to a connecting rod (54), and the left end of the connecting rod (54) is fixedly connected to the right end of another group of the arc blocks (53).

7. The oil cylinder sleeve convenient for maintenance according to claim 1, characterized in that: The right end of the lower oil cylinder sleeve (2) is fixedly connected to a first threaded ring (55), the right end of the first threaded ring (55) is fixedly connected to a second threaded ring (56), and the right end of the upper oil cylinder sleeve (1) is fixedly connected to a third threaded ring (57).

8. The oil cylinder sleeve convenient for maintenance according to claim 7, characterized in that: The third threaded ring (57) is matched with the first threaded ring (55), the first threaded ring (55) is matched with the second threaded ring (56), and the outer wall of the second threaded ring (56) is threadedly connected with a thread block (58).

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