Oil cylinder with pop-up sealing ring replacement mechanism

Abstract

The utility model discloses an oil cylinder with a pop-up sealing ring replacing mechanism, which belongs to the field of oil cylinders, and is characterized by comprising a press body, an upper die is slidably connected outside the press body, a connecting flange is mounted at the inner end of the upper die, a cylinder barrel is mounted at the outer end of the connecting flange, and the pop-up sealing ring replacing mechanism is mounted in the cylinder barrel. A piston rod is slidably connected to the inner end of the cylinder barrel, a large lock nut is installed outside the cylinder barrel, and a second cylinder bottom guide sleeve is installed above the piston rod. The cylinder body is divided into three parts, namely the cylinder bottom nut, the cylinder bottom guide sleeve and the cylinder barrel, which are of a detachable structure, so that when a sealing ring of a piston head of the main cylinder is replaced, the sealing ring can be conveniently replaced only by detaching a bolt for connecting a sliding block and a piston rod with a flange, namely the structure that the cylinder bottom nut presses the cylinder bottom guide sleeve on the cylinder barrel, and the sealing ring can be conveniently replaced. The sealing ring of the oil cylinder is convenient and fast to replace, the experience effect of a user is improved, and the maintenance efficiency of a customer is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of oil cylinders, in particular to an oil cylinder with a pop-up sealing ring replacement mechanism. Background Art

[0002] With the development of the automotive industry, the automotive-related hydraulic press industry has also developed rapidly. In order to be able to stretch or stamp out a variety of automotive parts, the various parameters of the hydraulic press have also been adjusted a lot. Among them, there is a type of press that needs to be equipped with a particularly long cylinder stroke, some of which are even twice the normal cylinder stroke.

[0003] The existing oil cylinder has certain disadvantages when in use. First, since the total length of this oil cylinder is too long, if a normal oil cylinder structure is used, when replacing the oil cylinder sealing ring, it is necessary to first remove the mold on the press, then put the slider to the bottom, and then remove the entire oil cylinder from the upper beam. Only then can the oil cylinder be disassembled before replacing the sealing ring. This is very inconvenient and time-consuming, and requires professional disassembly and assembly personnel to perform tedious disassembly, which reduces the convenience of using and maintaining the oil cylinder. This leads to, for this reason, we propose an oil cylinder with a pop-up sealing ring replacement mechanism. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide an oil cylinder with a pop-up sealing ring replacement mechanism, which is divided into three parts by setting: a cylinder bottom nut, a cylinder bottom guide sleeve and a cylinder barrel. It is a detachable structure, and the cylinder bottom guide sleeve is installed at the bottom of the cylinder barrel. After this change, when replacing the sealing ring of the master cylinder piston head, you only need to remove the bolts connecting the slider and the piston rod flange, and then unscrew the cylinder bottom nut at the bottom of the oil cylinder, remove the cylinder bottom guide sleeve, and then push the piston rod upward from the inside of the cylinder barrel until the piston head exceeds the cylinder barrel part, and then you can conveniently replace the sealing ring, that is, the structure of the cylinder bottom nut pressing the cylinder bottom guide sleeve on the cylinder barrel, which makes it convenient and quick to replace the sealing ring of the oil cylinder, increases the user experience, and greatly improves the customer's maintenance efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A hydraulic cylinder with a pop-up sealing ring replacement mechanism includes a press body, an upper mold is slidably connected to the outside of the press body, a connecting flange is installed at the inner end of the upper mold, a cylinder is installed at the outer end of the connecting flange, a piston rod is slidably connected to the inner end of the cylinder, a large lock nut is installed at the outside of the cylinder, a cylinder bottom guide sleeve 2 is installed above the piston rod, and the outer end of the cylinder bottom guide sleeve 2 is threadedly connected to the cylinder bottom nut.

[0007] By installing the connecting flange and the second guide sleeve at the bottom of the cylinder, the oil cylinder can be easily maintained and the sealing ring can be replaced.

[0008] Furthermore, a cylinder port guide sleeve 1 is movably connected below the cylinder bottom nut, the cylinder port guide sleeve 1 is located at the outer end of the piston rod, and a cylinder port flange is installed at the outer end of the cylinder port guide sleeve 1.

[0009] By installing the cylinder bottom nut, the stability of the cylinder port guide sleeve structure can be improved.

[0010] Furthermore, a connecting flange is installed below the cylinder mouth flange, and the connecting flange is located at the upper end of the slider.

[0011] By installing the slider, the device structure can be more convenient to use.

[0012] Furthermore, an upper mold is installed at the lower end of the slider, the lower end of the upper mold is movably connected to the lower mold, and the upper end of the lower mold is movably connected to the upper beam body.

[0013] By installing the upper mold, the upper mold and the lower mold do not need to be disassembled, so the accuracy is high during use, which further increases the use effect of the oil cylinder.

[0014] Furthermore, the upper beam body is located at the upper end of the press body.

[0015] By installing the upper beam body, the operation of the oil cylinder can be made more stable.

[0016] Furthermore, the top end of the piston rod is fixedly connected to a piston head, and the upper end of the piston head is installed with a cylinder bottom guide sleeve 2.

[0017] By installing the piston rod, the piston rod and the piston head are fixedly connected as a whole. This method allows the piston head to be removed from the cylinder body together with the piston rod, further improving the maintenance effect of the oil cylinder.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. The cylinder body is divided into three parts through the setting: cylinder bottom nut, cylinder bottom guide sleeve and cylinder barrel. It is a detachable structure. The cylinder bottom guide sleeve is installed at the bottom of the cylinder barrel. After this change, when replacing the sealing ring of the master cylinder piston head, you only need to remove the bolts connecting the slider and the piston rod flange, then unscrew the cylinder bottom nut at the bottom of the oil cylinder, remove the cylinder bottom guide sleeve, and then push the piston rod upward from the inside of the cylinder barrel until the piston head protrudes from the cylinder barrel. The sealing ring can be easily replaced, that is, the structure of the cylinder bottom nut pressing the cylinder bottom guide sleeve on the cylinder barrel makes it convenient and quick to replace the sealing ring of the oil cylinder, which increases the user experience and greatly improves the customer's maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1Schematic diagram of the overall planar structure of this embodiment;

[0021] Figure 2 This is a schematic structural diagram of a plane of the cylinder port guide sleeve in this embodiment;

[0022] Figure 3 In this embodiment Figure 1 Schematic diagram of the structure with the plane at point A enlarged.

[0023] In the figure, 1. Press body; 2. Upper mold; 3. Slider; 4. Connecting flange; 5. Cylinder mouth flange; 6. Cylinder mouth guide sleeve 1; 7. Large lock nut; 8. Piston rod; 9. Cylinder barrel; 10. Piston head; 11. Cylinder bottom guide sleeve 2; 12. Cylinder bottom nut; 13. Upper beam body; 14. Lower mold. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0026] Reference Figure 1-3 As shown in the preferred embodiment of the present utility model:

[0027] Example 1

[0028] See also Figure 1 The utility model provides a technical solution: an oil cylinder with a pop-up sealing ring replacement mechanism, comprising a press body 1, an upper mold 2 is slidably connected to the outside of the press body 1, a connecting flange 4 is installed at the inner end of the upper mold 2, a cylinder barrel 9 is installed at the outer end of the connecting flange 4, a piston rod 8 is slidably connected to the inner end of the cylinder barrel 9, a large lock nut 7 is installed at the outside of the cylinder barrel 9, a cylinder bottom guide sleeve 2 11 is installed above the piston rod 8, and the outer end of the cylinder bottom guide sleeve 2 11 is threadedly connected to the cylinder bottom nut 12.

[0029] A cylinder port guide sleeve 6 is movably connected below the cylinder bottom nut 12. The cylinder port guide sleeve 6 is located at the outer end of the piston rod 8. The outer end of the cylinder port guide sleeve 6 is installed with a cylinder port flange 5.

[0030] A connecting flange 4 is installed below the cylinder port flange 5 , and the connecting flange 4 is located at the upper end of the slider 3 .

[0031] The upper mold 2 is installed at the lower end of the slider 3 , the lower end of the upper mold 2 is movably connected to the lower mold 14 , and the upper end of the lower mold 14 is movably connected to the upper beam body 13 .

[0032] The structure of the oil cylinder is to divide the cylinder body into three parts: a cylinder bottom nut 12, a cylinder bottom guide sleeve 2 11 and a cylinder barrel 9. The cylinder mouth guide sleeve 1 6 is installed at the bottom of the cylinder barrel 9. There is a thread on the outer diameter of the bottom of the cylinder barrel 9. The cylinder bottom nut 12 fixes the cylinder bottom guide sleeve 2 11 to the bottom of the cylinder barrel 9 through the thread. The special structure of the oil cylinder requires that when replacing the sealing ring of the main cylinder piston head 10 during use, it is only necessary to remove the bolts connecting the slider 3 and the piston rod 8 flange 4, and then unscrew the cylinder bottom nut 12 at the bottom of the oil cylinder, remove the cylinder bottom guide sleeve 2 11, and then push the piston rod 8 upward from the inside of the cylinder barrel 9 until the piston head 10 exceeds the cylinder barrel 9. The task of replacing the sealing ring can be completed conveniently, so that the oil cylinder does not need to remove the mold of the press or remove the entire oil cylinder from the upper beam body 13 to replace the sealing ring, thereby improving the convenience of disassembly and maintenance of the device.

[0033] Example 2

[0034] See also Figure 1 - Figure 3 The utility model provides a technical solution: an oil cylinder with a pop-up sealing ring replacement mechanism, comprising a press body 1, an upper mold 2 is slidably connected to the outside of the press body 1, a connecting flange 4 is installed at the inner end of the upper mold 2, a cylinder barrel 9 is installed at the outer end of the connecting flange 4, a piston rod 8 is slidably connected to the inner end of the cylinder barrel 9, a large lock nut 7 is installed at the outside of the cylinder barrel 9, a cylinder bottom guide sleeve 2 11 is installed above the piston rod 8, and the outer end of the cylinder bottom guide sleeve 2 11 is threadedly connected to the cylinder bottom nut 12.

[0035] The upper beam body 13 is located at the upper end of the press body 1 .

[0036] The top end of the piston rod 8 is fixedly connected to a piston head 10 , and the upper end of the piston head 10 is mounted with a cylinder bottom guide sleeve 11 .

[0037] The upper mold 2 and the lower mold 14 do not need to be disassembled, so the accuracy is high during use, which further increases the use effect of the oil cylinder. After the sealing ring is replaced, it is only necessary to install the cylinder mouth guide sleeve 6 of the oil cylinder to the bottom of the oil cylinder, and then fix it with the cylinder bottom nut 12, and tighten the connecting flange 4. There is no need to re-debug the press or readjust the accuracy of the mold, so that the press can be used conveniently, and the efficiency of maintenance and installation of the device is increased.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An oil cylinder with a pop-up seal ring replacement mechanism, characterized in that: The invention comprises a press body (1), wherein the outer portion of the press body (1) is slidably connected to an upper mold (2), the inner end of the upper mold (2) is installed with a connecting flange (4), the outer end of the connecting flange (4) is installed with a cylinder (9), the inner end of the cylinder (9) is slidably connected to a piston rod (8), the outer portion of the cylinder (9) is installed with a large lock nut (7), a cylinder bottom guide sleeve 2 (11) is installed above the piston rod (8), and the outer end of the cylinder bottom guide sleeve 2 (11) is threadedly connected to a cylinder bottom nut (12).

2. The oil cylinder with a pop-up sealing ring replacement mechanism according to claim 1, characterized in that: A cylinder port guide sleeve (6) is movably connected below the cylinder bottom nut (12), and the cylinder port guide sleeve (6) is located at the outer end of the piston rod (8). A cylinder port flange (5) is installed at the outer end of the cylinder port guide sleeve (6).

3. The oil cylinder with a pop-up seal ring replacement mechanism according to claim 2, characterized in that: A connecting flange (4) is installed below the cylinder port flange (5), and the connecting flange (4) is located at the upper end of the slider (3).

4. The oil cylinder with a pop-up seal ring replacement mechanism according to claim 3, characterized in that: An upper mold (2) is installed at the lower end of the slider (3), the lower end of the upper mold (2) is movably connected to a lower mold (14), and the upper end of the lower mold (14) is movably connected to an upper beam body (13).

5. The oil cylinder with a pop-up seal ring replacement mechanism according to claim 4, characterized in that: The upper beam body (13) is located at the upper end of the press body (1).

6. The oil cylinder with a pop-up seal ring replacement mechanism according to claim 1, characterized in that: The top end of the piston rod (8) is fixedly connected to a piston head (10), and the upper end of the piston head (10) is installed with a cylinder bottom guide sleeve 2 (11).

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