Oil absorption filter structure

Abstract

The utility model discloses an oil absorption filter structure which comprises a pull rod and a filter element, a top cover of the filter element is provided with a mounting hole, a pull rod mounting seat is mounted below the top cover of the filter element, one end of the pull rod mounting seat is in threaded connection with the pull rod, and the other end of the pull rod mounting seat is connected with the top cover of the filter element through a plurality of reinforcing ribs. The pull rod bottom installation structure can be strengthened, the probability that the oil absorption filter is crushed is reduced, the reliability of the oil absorption filter is improved, the installation size of the oil absorption filter can be guaranteed, a split-charging transportation mode is adopted, and the transportation cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter structure, especially an oil suction filter structure. BACKGROUND

[0002] The oil suction filter is located at the oil suction port of the hydraulic oil tank and is a component for preventing foreign matters in the oil tank from mixing into the main pump, thereby protecting the main pump. Figure 1 As shown in the figure, the oil suction filter of the hydraulic oil tank is usually composed of a compression spring 1, a positioning seat 2, a pull rod 3, a nut 4 and a filter element 5. When assembling the oil suction filter, the bottom filter element 5 needs to be first installed in the installation seat of the oil suction port in the hydraulic oil tank, and then the positioning pin on the tank cover is aligned with the compression spring 1 in the positioning seat 2 at the top of the oil suction filter for assembly. The tank cover continuously applies a downward force through the compression spring 1 to fasten the oil suction filter, so as to ensure that the hydraulic oil in the oil tank enters the main pump after being filtered by the oil suction filter during the operation of the machine. Since the bottom connecting structure of the pull rod 3 of the oil suction filter is single and has no positioning structure, the strength is low, and the pull rod 3 is usually made of solid steel, which is heavy, so that the phenomenon of the oil suction filter being crushed often occurs. In addition, the installation size h of the oil suction filter usually cannot be guaranteed. When h is too large, the tank cover cannot be assembled after the oil suction filter is placed in the oil tank. When h is a little large, the force of the oil suction filter pull rod pressing the bottom filter element is too large after the tank cover is assembled, which also easily leads to the crushing of the filter element. When h is too small, the oil suction filter is easy to fall off in the oil tank, which affects the cleanliness of the oil suction oil path of the main pump, so the oil suction filter usually adopts the whole transportation mode, which has high transportation cost. SUMMARY

[0003] The utility model provides a kind of oil suction filter structure which can not only strengthen the installation structure of the bottom of pull rod, reduce the probability of the oil suction filter being crushed, improve the reliability of the oil suction filter, but also can guarantee the installation size of the oil suction filter, and can be transported by separate packing mode, reduce transportation cost.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] An oil suction filter structure includes a pull rod and a filter element. A mounting hole is provided on the top cover of the filter element. A pull rod mounting seat is installed below the top cover of the filter element. One end of the pull rod mounting seat is threadedly connected with the pull rod, and the other end is connected with the top cover of the filter element through a plurality of reinforcing ribs.

[0006] The utility model discloses a reinforcing rib connection is set up between the pull rod mounting seat and filter core top cover, strengthens the pull rod bottom mounting structure, reduces the probability that oil suction filter is crushed, improves oil suction filter installation and use reliability.

[0007] Preferably, the pull rod is hollow tube structure to further reduce the pull rod weight and reduce the probability that oil suction filter is crushed.

[0008] Preferably, the plurality of reinforcing ribs are uniformly distributed around the pull rod mounting seat to ensure that the pull rod mounting seat is uniformly stressed and avoid weak points, further ensuring the reliability of oil suction filter installation and use.

[0009] Preferably, the pull rod is screwed to the pull rod mounting seat after passing through the mounting hole.

[0010] Preferably, the lower end of the pull rod is provided with external threads, and the upper end of the pull rod mounting seat is provided with internal threads, and the external threads are connected to the internal threads.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The utility model can strengthen the pull rod bottom mounting structure, reduce the probability that oil suction filter is crushed, and improve the reliability of oil suction filter.

[0013] 2. The utility model can ensure the installation size of oil suction filter, and can be transported in a separate manner after disassembly, thereby reducing transportation cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0015] Figure 1 It is the structural schematic diagram of traditional hydraulic oil tank oil suction filter.

[0016] Figure 2 It is the structural schematic diagram of the utility model.

[0017] Figure 3 It is Figure 2 the A place partial close -up drawing of. DETAILED DESCRIPTION

[0018] The utility model is further described below in combination with specific preferred embodiments, but the protection scope of the utility model is not limited by this.

[0019] In the description of the utility model, it should be explained that the orientation or position relation indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Please refer to Figure 2 、 Figure 3 The utility model oil absorption filter structure one embodiment includes compression spring 1, positioning seat 2, pull rod 3, nut 4, filter core 5, pull rod mounting seat 6 and reinforcing rib 7, the top end of pull rod 3 installs compression spring 1 and positioning seat 2, the bottom end of pull rod 3 passes through the installation hole of filter core 5 top cover and is connected with one end of pull rod mounting seat 6 by screw thread, and the other end of pull rod mounting seat 6 is connected with the top cover of filter core 5 through the reinforcing rib 7 of multiple uniform distribution, to greatly strengthen the connection structure strength of the bottom end of pull rod 3 and the top cover of filter core 5, reduce the probability of oil absorption filter being crushed, ensure the installation size of oil absorption filter, and the transportation mode can also be changed into split part transportation, reduce the transportation space, and greatly reduce the transportation cost.

[0022] In order to further reduce the risk of crushing, the pull rod 3 preferably adopts a hollow tube structure. Because the hollow tube structure has good rigidity and light weight.

[0023] In order to ensure the connection stability, the pull rod 3 is screwed with the pull rod mounting seat 6 after passing through the installation hole.

[0024] In this embodiment, the lower end of the pull rod 3 is provided with external threads, the upper end of the pull rod mounting seat 6 is provided with internal threads, and the external threads are connected with the internal threads. Obviously, the utility model is not limited to this, and the lower end of the pull rod 3 can also be provided with internal threads, and the upper end of the pull rod mounting seat 6 can be provided with external threads.

[0025] In the specific assembly, one end of the reinforcing rib 7 is spot-welded on the pull rod mounting seat 6, the other end is spot-welded on the top cover of the filter element 5, and the reinforcing rib 7 is fully welded on the pull rod mounting seat 6.

[0026] The above is only a specific implementation of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application by using the disclosed technical content without departing from the scope of the technical solutions of the present application, or modify equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application shall fall within the scope of protection of the technical solutions of the present application.

Claims

1. An oil suction filter structure, comprising a pull rod and a filter element, characterized in that: The filter element has mounting holes on its top cover, and a pull rod mounting seat is installed under the top cover of the filter element. One end of the pull rod mounting seat is threaded to the pull rod, and the other end is connected to the top cover of the filter element via multiple reinforcing ribs.

2. The oil suction filter structure according to claim 1, characterized in that, The tie rod is a hollow tube structure.

3. The oil suction filter structure according to claim 1, characterized in that, The multiple reinforcing ribs are evenly distributed around the periphery of the tie rod mounting base.

4. The oil suction filter structure according to claim 1, characterized in that, The pull rod passes through the mounting hole and is threadedly connected to the pull rod mounting seat.

5. The oil suction filter structure according to claim 1, characterized in that, The lower end of the pull rod is provided with an external thread, and the upper end of the pull rod mounting base is provided with an internal thread. The external thread is connected to the internal thread.

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