Oil field filter element with replaceable filter element body

Abstract

The utility model relates to the technical field of filter elements, and discloses an oil field filter element with a replaceable filter element body, which comprises a positioning frame, the lower end of the positioning frame is fixedly connected with a lower fixing seat, the filter element body is arranged on the circumferential surface of the positioning frame, the filter element body is lower than the positioning frame, and the upper end of the positioning frame is provided with an upper fixing seat. The lower end face of the upper fixing base is attached to the upper end face of the filter element body, and a dismounting mechanism is arranged in the positioning frame. According to the utility model, the pressure plate is taken down from the upper fixing seat, the upper fixing seat can be taken down from the positioning frame, the positioning effect on the filter element body is relieved, then the filter element body can be lifted upwards from the circumferential surface of the positioning frame, and the filter element body can be taken down; then, a new filter element body can be arranged on the circumferential surface of the positioning frame in a sleeving manner, then the upper fixing seat is buckled on the positioning frame and the filter element body, and then the upper fixing seat is fixed, so that the effect of replacing the filter element body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, and more specifically to an oilfield filter element with a replaceable filter element body. Background Art

[0002] Oilfield filter elements are mainly used for filtering oil in hydraulic systems. They are installed in filters and oil filters in hydraulic systems. They are used in the oil circuits of hydraulic systems to remove metal powder and other mechanical impurities caused by wear of various components in the hydraulic system to keep the oil circuits clean and extend the life of the hydraulic system. Low-pressure series filter elements are also equipped with bypass valves. When the filter element is not replaced in time, the bypass valve can automatically open to ensure the normal operation of the system.

[0003] The shortcomings of the existing technology: The existing oilfield filter element mainly includes a filter element and a frame for fixing the filter element. After the oilfield filter element has been used for a period of time, its filter element is affected by dust and other pollutant particles, resulting in reduced filtering performance and the need to replace it with a new filter element. However, the overall replacement of the filter element is a waste of cost. For this reason, we propose an oilfield filter element with a replaceable filter element body. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an oilfield filter element with a replaceable filter element body to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an oilfield filter element with a replaceable filter element body, comprising a positioning frame, a lower fixing seat fixedly connected to the lower end of the positioning frame, a filter element body arranged on the circumferential surface of the positioning frame, the filter element body being lower in height than the positioning frame, an upper fixing seat arranged on the upper end of the positioning frame, the lower end surface of the upper fixing seat being fitted with the upper end surface of the filter element body, and a disassembly and assembly mechanism being arranged in the positioning frame.

[0006] Preferably, the disassembly and assembly mechanism comprises a threaded barrel threadedly connected to the positioning frame, a pressure plate is fixedly connected to the circumferential surface of the threaded barrel, and the lower end surface of the pressure plate is in contact with the upper end surface of the upper fixing seat.

[0007] Preferably, a slot is provided on the circumferential surface of the threaded cylinder, and a rotating rod is arranged in the slot.

[0008] Preferably, the positioning frame is made of metal, and the positioning frame is thickened.

[0009] Preferably, the filter element body is made by folding filter paper.

[0010] Preferably, a positioning rubber strip is provided on the surface of the filter element body, and a plurality of the positioning rubber strips are provided.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model rotates the threaded barrel upward, and the threaded barrel will drive the pressure plate to move upward, thereby releasing the positioning effect on the upper fixing seat. At this time, the upper fixing seat can be removed from the positioning frame, and the positioning effect on the filter element body can be released. Then, the filter element body can be lifted upward from the circumferential surface of the positioning frame, and the filter element body can be removed. Then, a new filter element body can be sleeved on the circumferential surface of the positioning frame, and the upper fixing seat is buckled on the positioning frame and the filter element body. Then, the threaded barrel is threadedly rotated and fixed in the fixing frame. As the pressure plate moves downward, the upper fixing seat is fixed, thereby achieving the effect of fixing the position of the filter element body after replacement.

[0013] 2. The utility model uses a positioning frame made of metal and thickened, which can improve the stability of the positioning frame, prevent deformation, and increase the service life. At the same time, a positioning rubber strip is arranged on the surface of the filter element body, and a plurality of positioning rubber strips are arranged, so that the filter element body can be positioned, making the filter element body more stable and avoiding bending of the filter element body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the cross-section in the utility model.

[0016] Figure 3 For the utility model Figure 2 Schematic diagram of the structure of part A.

[0017] Figure 4 It is a schematic diagram of the split structure in the utility model.

[0018] Figure 5 It is a schematic diagram of the structure of the positioning frame and the filter element body separated in the utility model.

[0019] The accompanying drawings are marked as follows: 1. positioning frame; 2. lower fixing seat; 3. filter element body; 4. upper fixing seat; 5. threaded cylinder; 6. pressure plate; 7. slot; 8. rotating rod; 9. positioning rubber strip. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The oilfield filter element with a replaceable filter element body involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] The utility model provides an oilfield filter element with a replaceable filter element body, comprising a positioning frame 1, a lower fixing seat 2 is fixedly connected to the lower end of the positioning frame 1, a filter element body 3 is arranged on the circumferential surface of the positioning frame 1, the height of the filter element body 3 is lower than the positioning frame 1, an upper fixing seat 4 is arranged on the upper end of the positioning frame 1, the lower end surface of the upper fixing seat 4 is in contact with the upper end surface of the filter element body 3, and a disassembly and assembly mechanism is arranged in the positioning frame 1. During operation, when the filter element body 3 needs to be replaced, the pressure plate 6 is removed from the upper fixing seat 4, and the upper fixing seat 4 can be removed from the positioning frame 1. At this time, the positioning effect on the filter element body 3 is released, and then the filter element body 3 can be lifted upward from the circumferential surface of the positioning frame 1, so that the filter element body 3 can be removed, and then a new filter element body 3 can be sleeved on the circumferential surface of the positioning frame 1, and then the upper fixing seat 4 is buckled on the positioning frame 1 and the filter element body 3, and then the upper fixing seat 4 is fixed, thereby achieving the effect of replacing the filter element body 3.

[0022] Furthermore, the disassembly and assembly mechanism includes a threaded barrel 5 connected to the inner thread of the positioning frame 1, and the circumferential surface of the threaded barrel 5 is fixedly connected to a pressure plate 6, and the lower end surface of the pressure plate 6 fits with the upper end surface of the upper fixing seat 4. When working, by rotating the threaded barrel 5 upward, the threaded barrel 5 will drive the pressure plate 6 to move upward, thereby releasing the positioning effect of the upper fixing seat 4, and then the upper fixing seat 4 and the filter element body 3 can be removed. After replacing the new filter element body 3, the upper fixing seat 4 is buckled on the positioning frame 1 and the filter element body 3 again, and then the threaded barrel 5 is threadedly rotated and fixed in the fixing frame. As the pressure plate 6 moves downward, the upper fixing seat 4 will be fixed, thereby achieving the effect of fixing the position of the filter element body 3 after the replacement is completed.

[0023] Furthermore, a slot 7 is provided on the circumferential surface of the threaded barrel 5, and a rotating rod 8 is provided in the slot 7. During operation, when the threaded barrel 5 needs to be rotated, the rotating rod 8 is inserted into the slot 7 and then rotated, thereby achieving the effect of rotating the threaded barrel 5.

[0024] Furthermore, the positioning frame 1 is made of metal and its thickness is thickened. The stability of the positioning frame 1 can be improved, deformation is not easy to occur, and the service life is increased.

[0025] Furthermore, the filter element body 3 is made of folded filter paper. When working, the filter element body 3 is made of folded filter paper, which can have a good filtering effect.

[0026] Furthermore, a positioning rubber strip 9 is provided on the surface of the filter element body 3, and a plurality of positioning rubber strips 9 are provided. During operation, the filter element body 3 can be positioned by the positioning rubber strip 9 provided on the surface of the filter element body 3, and a plurality of positioning rubber strips 9 are provided, so that the filter element body 3 can be more stable and the filter element body 3 can be prevented from bending.

[0027] The working principle of the utility model is as follows: when the filter element body 3 needs to be replaced, by rotating the threaded barrel 5 upward, the threaded barrel 5 will drive the pressure plate 6 to move upward, releasing the positioning effect on the upper fixing seat 4, and then the upper fixing seat 4 can be removed from the positioning frame 1, and then the positioning effect on the filter element body 3 can be released, and then the filter element body 3 can be lifted upward from the circumferential surface of the positioning frame 1, and then the filter element body 3 can be removed, and then the new filter element body 3 can be sleeved on the circumferential surface of the positioning frame 1, and then the upper fixing seat 4 is buckled on the positioning frame 1 and the filter element body 3, and then the threaded barrel 5 is threadedly rotated and fixed in the fixing frame, and as the pressure plate 6 moves downward , the upper fixing seat 4 will be fixed, thereby achieving the effect of fixing the position of the filter element body 3 after the replacement is completed. At the same time, when it is necessary to rotate the threaded tube 5, the rotating rod 8 is inserted into the slot 7 and then the rotating rod 8 is rotated, so as to achieve the effect of rotating the threaded tube 5. In addition, the positioning frame 1 is made of metal and the thickness is thickened, so that the stability of the positioning frame 1 is improved, it is not easy to deform, and the service life is improved. At the same time, the positioning rubber strip 9 is arranged on the surface of the filter element body 3, and a plurality of positioning rubber strips 9 are arranged, so that the filter element body 3 can be positioned, making the filter element body 3 more stable and avoiding the filter element body 3 from bending.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An oilfield filter element with a replaceable filter element body, comprising a positioning frame (1), characterized in that: The lower end of the positioning frame (1) is fixedly connected to a lower fixing seat (2); a filter element body (3) is arranged on the circumferential surface of the positioning frame (1); the height of the filter element body (3) is lower than that of the positioning frame (1); an upper fixing seat (4) is arranged at the upper end of the positioning frame (1); the lower end surface of the upper fixing seat (4) is in contact with the upper end surface of the filter element body (3); and a disassembly and assembly mechanism is arranged inside the positioning frame (1).

2. The oilfield filter element with a replaceable filter element body according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a threaded barrel (5) connected to the internal thread of the positioning frame (1); a pressure plate (6) is fixedly connected to the circumferential surface of the threaded barrel (5); and the lower end surface of the pressure plate (6) is in contact with the upper end surface of the upper fixing seat (4).

3. The oilfield filter element with a replaceable filter element body according to claim 2, characterized in that: A slot (7) is provided on the circumferential surface of the threaded barrel (5), and a rotating rod (8) is arranged in the slot (7).

4. The oilfield filter element with a replaceable filter element body according to claim 1, characterized in that: The positioning frame (1) is made of metal, and the thickness of the positioning frame (1) is thickened.

5. The oilfield filter element with a replaceable filter element body according to claim 1, characterized in that: The filter element body (3) is made by folding filter paper.

6. The oilfield filter element with a replaceable filter element body according to claim 5, characterized in that: A positioning rubber strip (9) is provided on the surface of the filter element body (3), and a plurality of the positioning rubber strips (9) are provided.

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