Filter plate handle and filter press filter plate

Abstract

The present application discloses a filter plate handle and a filter plate for a filter press. A filter plate handle, in which an insertion shaft protrudes from the plate surfaces on both sides of the fixed plate and is fixed and connected to the fixed plate, the parts protruding from the plate surfaces on both sides of the fixed plate are a first segment and a second segment, the first segment of the insertion shaft is inserted into the insertion hole of the filter plate so as to be press-fitted, ensuring accurate alignment and assembly with the filter plate, the second segment of the insertion shaft is provided with a wear-resistant block, which contacts the main beam and provides sliding support, the fixed plate is provided with at least two bolt holes and is fixed and connected to the filter plate by at least two bolts to further achieve reinforcement, the filter plate handle of the present invention achieves primary fixation by the press-fitting between the first segment of the insertion shaft and the filter plate, and achieves secondary fixation by the bolts, the insertion shaft and the filter plate are held in a press-fitted state, ensuring accurate alignment and installation of the handles on both sides of the filter plate.

Description

[Technical field]

[0001] This application claims priority to a Chinese patent application filed with the China Patent Office on May 17, 2022, bearing application number 202210534975.7 and entitled "Filter plate handle and filter plate of filter press", the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to the field of filter presses and more particularly to a filter plate handle and more particularly to a filter plate of a filter press. [Background technology]

[0003] The filter plate is the main filtering element of the filter press, the filter plate handles are mounted on both sides of the filter plate, the main beams on both sides respectively provide support for the filter plate handles on both sides of the filter plate, and a plurality of filter plates are arranged in an array on the main beams. The plate pulling device of the filter press pulls the filter plate to move it along the main beams. Summary of the Invention [Problem to be solved by the invention]

[0004] Traditional filter plate handles are manufactured by butting two perpendicular plate structures together, with one plate being fixed to the side of the filter plate by two or three bolts. The bolt holes have clearance, which means that accurate alignment cannot be achieved after the handles on both sides are installed, and the filter plate handle may swing relative to the filter plate.

[0005] Ensuring accurate alignment of the handles on both sides of the filter plate is a technical problem that those skilled in the art are currently attempting to solve. [Means for solving the problem]

[0006] The present invention provides a filter plate handle to solve the problem that the filter plate handle cannot be mounted in an accurate alignment, and the specific solution is as follows: A filter plate handle, comprising a fixed plate and an insertion shaft arranged to be fixed relative to each other, the insertion shaft protruding from both side plate surfaces of the fixed plate, a first segment of the insertion shaft being inserted into an insertion hole of the filter plate so as to be press-fitted, and a second segment of the insertion shaft being provided with a wear-resistant block for contacting a main beam; The fixing plate has at least two bolt holes, and the fixing plate is fixed and connected to the filter plate by at least two bolts.

[0007] Preferably, the insertion shaft is a stepped shaft whose outer diameter decreases stepwise from the middle to both ends.

[0008] Preferably, the mounting shaft includes a first step segment and a second step segment, the second step segment being inserted into the fixed plate so as to be press-fitted, and the first step segment being inserted into the filter plate so as to be press-fitted.

[0009] Preferably, the mounting shaft includes a third step segment for engaging a drawing apparatus.

[0010] Preferably, the third step segment is cylindrical or rectangular.

[0011] Preferably, the wear block is hinged to the body segment of the mounting shaft.

[0012] Preferably, at least two trenches are provided on the outer periphery of the mounting shaft, and retaining rings are fitted in the trenches to restrict the position of the wear-resistant block in the axial direction.

[0013] Preferably, the fixing plate is a metal plate, and the insertion shaft is a metal shaft.

[0014] The present invention further provides a filter plate of a filter press, comprising a filter plate handle according to any one of the above claims. Effect of the Invention

[0015] The present invention provides a filter plate handle, in which an insertion shaft protrudes from the plate surfaces on both sides of the fixed plate, the insertion shaft is fixedly connected to the fixed plate, the portions protruding from the plate surfaces on both sides of the fixed plate are a first segment and a second segment, the first segment of the insertion shaft is inserted into the insertion hole of the filter plate so as to be press-fitted, thereby ensuring accurate alignment and assembly with the filter plate, the second segment of the insertion shaft is provided with a wear-resistant block, which contacts the main beam and provides sliding support, the fixed plate is provided with at least two bolt holes, and is fixedly connected to the filter plate by at least two bolts to further achieve reinforcement, the filter plate handle of the present invention realizes primary fixation by the press-fit connection between the first segment of the insertion shaft and the filter plate, and realizes secondary fixation by the bolts, the insertion shaft and the filter plate are held in a press-fitted manner, thereby ensuring accurate alignment and installation of the handles on both sides of the filter plate.

[0016] In order to more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the necessary drawings in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings on the premise that they do not make efforts worthy of inventive step. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a perspective view of a specific embodiment of a filter plate handle of the present invention; [Diagram 2] FIG. 2 is a front view of a specific embodiment of the filter plate handle of the present invention; [Diagram 3] FIG. 2 is a top view of an illustrative embodiment of a filter plate handle of the present invention. [Figure 4] FIG. 2 is a left side view of a specific embodiment of a filter plate handle of the present invention; [Diagram 5] FIG. 2 is a right side view of a specific embodiment of a filter plate handle of the present invention; [Figure 6] FIG. 2 is a front cross-sectional view of a specific embodiment of a filter plate handle of the present invention; [Figure 7] FIG. 2 is a front cross-sectional view of a specific embodiment of a filter plate handle of the present invention attached to a filter plate. [Figure 8] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The present invention has as its primary objective the provision of a filter plate handle, which uses a double fixation for added stability and a tight fit around the girth for precise alignment.

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the filter plate handle of the present invention will be further introduced and described in detail hereinafter in combination with the drawings and specific embodiments.

[0020] Combining Figures 1 to 5, the present invention provides a filter plate handle, which includes a fixed plate 1 and an insertion shaft 2 arranged to be fixed relative to each other, the fixed plate 1 and the insertion shaft 2 are held as a whole when in use and cannot swing or move relative to each other, the insertion shaft 2 protrudes from the plate surfaces on both sides of the fixed plate 1 respectively to form two protruding parts as a first segment and a second segment, the insertion shaft 2 may be a whole, or a two-segment separate structure may be used, and when a two-segment separate structure is used, the two segments are welded and fixed to the fixed plate 1 respectively.

[0021] In FIG. 2, I shows the first segment, and II shows the second segment. Combined with FIG. 7, the insertion shaft 2 of the present invention can be inserted into the filter plate (the structure of the filter plate is shown in FIG. 7A), the first segment of the insertion shaft 2 is inserted into the insertion hole of the filter plate so as to be tightly fitted, and the second segment extends in a direction away from the filter plate, and the second segment of the insertion shaft 2 is provided with a wear-resistant block 3 for contacting the main beam (the main beam structure is not shown), and at least one filter plate handle of the present invention is provided on each side of one filter plate, and support is provided for the filter plate handle by at least two main beam structures arranged in parallel, and further, support is provided for the entire filter plate, the direction of the main beam is perpendicular to the plate surface direction of the filter plate, and the filter plate handles protruding from the left and right sides of the filter plate are supported by the two main beams, respectively, and the wear-resistant block 3 contacts the main beam, causing the filter plate to slide along the length direction of the main beam, and multiple filter plates can be arranged on the main beam at the same time.

[0022] Combining Figures 1 and 7, at least two bolt holes are provided on the fixed plate 1, and one bolt is correspondingly installed in each bolt hole, and the fixed plate is fixed and connected to the filter plate by at least two bolts, B in Figure 7 shows a bolt, and the bolt hole in the fixed plate 1 may be a simple hole or a screw hole for arranging a female screw, and a corresponding screw hole is provided on the filter plate, and the bolt passes through the bolt hole in the fixed plate 1, then protrudes and is held so as to be screwed into the screw hole in the filter plate, thereby realizing screw fixing.

[0023] The filter plate handle provided by the present invention realizes the interference fit by the first segment of the mounting shaft 2 to achieve the primary fixing action, and realizes the screw connection by the two bolts to achieve the secondary fixing action, so that the fixed connection between the whole filter plate handle and the filter plate is more solid. In addition, the present invention maintains the interference fit between the first segment of the mounting shaft 2 and the filter plate, and forms the accurate positioning by the first segment of the mounting shaft 2, so that the handles on both sides of the filter plate are accurately aligned and installed, and the filter plate and the filter plate handle will not swing relative to each other.

[0024] Based on the above solution, combining Figures 6, 7 and 8, the insertion shaft 2 of the present invention is a stepped shaft, the insertion shaft 2 is not configured with the outer diameter of each part being completely the same, but the outer diameter becomes smaller in a step-like manner from the middle to both ends, that is, the middle is thick and the both ends are thin, the step-like change is an abrupt change in the size of the outer diameter, the outer diameter of each step segment is the same diameter, and at the boundary between two step segments, a step surface with an abrupt change in size is formed. In the preferred configuration of the present invention, the insertion shaft 2 is a complete shaft that penetrates the fixed plate 1.

[0025] 8, the mounting shaft 2 of the present invention is provided with a first step segment 21 and a second step segment 22, the outer diameter of the first step segment 21 is smaller than that of the second step segment 22, the second step segment 22 is inserted into the fixed plate 1 with a tight fit, and the first step segment 21 is inserted into the filter plate with a tight fit. After the second step segment 22 is connected to the fixed plate 1 with a tight fit, it is further reinforced by welding to improve its integrity.

[0026] Furthermore, the mounting shaft 2 of the present invention is provided with a third step segment 23 for engaging with a plate drawing device, and the portion between the third step segment 23 and the second step segment 22 is the main body segment 25 of the mounting shaft 2, and the outer diameter of the main body segment 25 is the largest and is larger than the third step segment 23 and the second step segment 22. During the manufacturing process, the two plate drawing devices on the left and right sides are hooked onto the third step segment 23, and the two filter plate handles are pulled to move the entire filter plate.

[0027] Since the third step segment 23 is used to hook onto a plate drawing device, there is no particular limitation on its external shape, and the third step segment 23 is cylindrical or rectangular.

[0028] Based on any one of the above technical solutions and their mutual combination, the wear-resistant block 3 of the present invention is hingedly connected to the body segment 25 of the mounting shaft 2, and the outer diameter of the body segment 25 is larger, which has higher supporting strength and is not easily deformed. The outer surface of the body segment 25 is a cylindrical surface, and the wear-resistant block 3 may be fitted to the outer surface of the body segment 25.

[0029] At least two trenches 24 are provided on the outer periphery of the insertion shaft 2, the trenches 24 being annular grooves arranged to surround the outer periphery of the insertion shaft 2, the two trenches 24 being located in the main body segment 25, and a retaining ring 4 is engaged in the trenches 24 to limit the position of the wear-resistant block 3 in the axial direction, so that the wear-resistant block 3 can rotate relative to the insertion shaft 2 but cannot move along the axial direction.

[0030] Specifically, the fixing plate 1 of the present invention is a metal plate, and the mounting shaft 2 is a metal shaft, and both are manufactured by finishing processing, so that the dimensional accuracy is guaranteed. Compared with the traditional structure by injection molding, it has higher structural strength.

[0031] The present invention further provides a filter press filter plate including the above filter plate handle, and each filter press filter plate includes at least two filter plate handles located on opposite sides, respectively, so that the filter press filter plate can achieve the above technical effects.

[0032] The above description of the disclosed embodiments enables one skilled in the art to realize or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not limited to these embodiments herein, but is accorded the widest scope consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0033] 1... fixed plate; 2 ···insertion shaft; 21 ···First stair segment; 22 ···Second stair segment; 23 ···Third stair segment; 24 ··· trench; 25 ··· body segments; 3 ···Wear-resistant block; 4···Retaining ring.

Claims

1. A filter plate handle, comprising a fixed plate (1) and an insertion shaft (2) arranged to be fixed relative to each other, the insertion shaft (2) protruding from both side plate surfaces of the fixed plate (1), a first segment of the insertion shaft (2) being inserted into an insertion hole of the filter plate so as to be press-fitted, and a wear-resistant block (3) for contacting a main beam is provided on a second segment of the insertion shaft (2); The fixing plate (1) has at least two bolt holes, and the fixing plate (1) is fixed and connected to the filter plate by at least two bolts; The filter plate handle is characterized in that the insertion shaft (2) is a stepped shaft whose outer diameter decreases stepwise from the middle to both ends.

2. The filter plate handle of claim 1, characterized in that the insertion shaft (2) includes a first step segment (21) and a second step segment (22), the second step segment (22) is inserted into the fixed plate (1) so as to be press-fitted, and the first step segment (21) is inserted into the filter plate so as to be press-fitted.

3. 3. A filter plate handle according to claim 2, characterized in that the mounting shaft (2) comprises a third step segment (23) for engaging with a plate drawing device.

4. A filter plate handle according to claim 3, characterized in that the third step segment (23) is cylindrical or rectangular.

5. A filter plate handle according to any one of the preceding claims, characterized in that the wear block (3) is hinged to a body segment (25) of the insertion shaft (2).

6. The filter plate handle according to claim 5, characterized in that at least two trenches (24) are provided on the outer periphery of the insertion shaft (2), and a retaining ring (4) is engaged in the trench (24) for axially limiting the position of the wear-resistant block (3).

7. The filter plate handle according to claim 5, characterized in that the fixed plate (1) is a metal plate and the insertion shaft (2) is a metal shaft.

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