A fixture for clamping a filter screen

Abstract

The present invention discloses a fixture for clamping a filter screen, which includes a first clamping plate, a second clamping plate, a first pressing plate and a second pressing plate; a first connecting rod and a second connecting rod are fixedly connected to the inner side wall of the first clamping plate; the first connecting rod and the second connecting rod respectively pass through a third through hole and a fourth through hole; springs are respectively sleeved on the outer parts of the first connecting rod and the second connecting rod; a third connecting rod and a fourth connecting rod are fixedly connected to the inner side wall of the second clamping plate; the third connecting rod and the fourth connecting rod respectively pass through a first through hole and a second through hole; springs are respectively sleeved on the outer parts of the third connecting rod and the fourth connecting rod; the first connecting rod and the second connecting rod respectively extend into the second pressing plate; the third connecting rod and the fourth connecting rod respectively extend into the first pressing plate; a guiding hole is provided in the middle of the first clamping plate, and a guiding block is fixedly connected to the inner side wall of the second clamping plate. The present invention is convenient for clamping the filter screen to be measured so as to facilitate observing the cross-section under a scanner, and is convenient to use and simple to operate.

Description

Technical Field

[0001] The present invention relates to the field of filter screen measuring devices, and more particularly to a fixture for clamping a filter screen. Background Art

[0002] A reverse osmosis membrane is usually provided in a water purifier. The reverse osmosis membrane requires the use of a filter screen. The filter screen used for the reverse osmosis membrane is a concentrated water network. Generally, after the finished product of the concentrated water network is produced, it needs to be cut off to observe the situation of the cut section.

[0003] Usually, a blade is used to cut off a certain area of the filter screen on the finished product, and then it is placed under a scanner for observation. However, due to the lack of a clamping tool, the filter screen is usually held by hand and its cross-section is placed under the scanner for observation. This operation method is very inconvenient, and it is not easy to detect and observe the cross-section of the filter screen. Therefore, a device for easily clamping the filter screen is needed to solve the technical problems existing in the prior art. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fixture for clamping a filter screen that is convenient to use, simple to operate, and easy to clamp the filter screen.

[0005] To solve the above technical problems, the technical solution of the present invention is: a fixture for clamping a filter screen, including a first clamping plate, a second clamping plate, a first pressing plate, and a second pressing plate; the first clamping plate is symmetrically provided with a first through hole and a second through hole; the second clamping plate is symmetrically provided with a third through hole and a fourth through hole; the inner side wall of the first clamping plate is fixedly connected with a first connecting rod and a second connecting rod; the first connecting rod and the second connecting rod respectively pass through the third through hole and the fourth through hole; springs are respectively sleeved outside the first connecting rod and the second connecting rod; the inner side wall of the second clamping plate is fixedly connected with a third connecting rod and a fourth connecting rod; the third connecting rod and the fourth connecting rod respectively pass through the first through hole and the second through hole; springs are respectively sleeved outside the third connecting rod and the fourth connecting rod; the interiors of the first pressing plate and the second pressing plate are both hollow structures; the inner side wall of the first pressing plate is symmetrically provided with a first through hole and a second through hole; the inner side wall of the second pressing plate is symmetrically provided with a third through hole and a fourth through hole; the first connecting rod and the second connecting rod respectively pass through the third through hole and the fourth through hole and extend into the second pressing plate; nuts are respectively connected to the ends of the first connecting rod and the second connecting rod; the third connecting rod and the fourth connecting rod respectively pass through the first through hole and the second through hole and extend into the first pressing plate, and nuts are respectively connected to the ends of the third connecting rod and the fourth connecting rod; a guiding hole is provided in the middle of the first clamping plate, and a guiding block corresponding to the guiding hole is fixedly connected to the inner side wall of the second clamping plate.

[0006] Preferably, both the first clamping plate and the second clamping plate are of a stepped type.

[0007] Preferably, the guiding hole is trapezoidal.

[0008] Preferably, the cross-section of the guiding block is trapezoidal.

[0009] Preferably, retaining plates are respectively arranged between the spring and the inner side walls of the first pressing plate and the second pressing plate.

[0010] Preferably, external threads are arranged on the outer parts of the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, a first connecting rod and a second connecting rod are arranged between the first clamping plate and the second pressing plate; springs are respectively sleeved on the outer parts of the first connecting rod and the second connecting rod; a third connecting rod and a fourth connecting rod are arranged between the second clamping plate and the first pressing plate, and springs are respectively sleeved on the outer parts of the third connecting rod and the fourth connecting rod; the ends of the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively connected with nuts; during installation, the second pressing plate compresses the spring inwards and then is fixed with a nut, and similarly, the first pressing plate also compresses the spring in the opposite direction and then is fixed with a nut. Finally, due to the elastic forces received by both sides of the first clamping plate and the second clamping plate and the opposite directions of the elastic forces, the first clamping plate and the second clamping plate can be clamped due to the opposite acting forces; and a guiding hole is arranged in the middle of the first clamping plate, and a guiding block corresponding to the guiding hole is fixedly connected to the inner side wall of the second clamping plate, so that the first clamping plate and the second clamping plate can be kept at the same horizontal position without displacement; during use, by compressing the first pressing plate and the second pressing plate towards each other, due to the action of the elastic force, a certain gap can be separated between the first clamping plate and the second clamping plate. The filter screen to be detected after cutting is placed in the gap between the first clamping plate and the second clamping plate, the first pressing plate and the second pressing plate are reset, and the filter screen can be clamped between the first pressing plate and the second pressing plate and then placed under a scanner for observation, and the operation is very simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a top view of the fixture for clamping the filter screen of the present invention;

[0013] Figure 2 is a schematic structural view of the fixture for clamping the filter screen of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] The following further describes the specific embodiments of the present invention with reference to the drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] As Figure 1 and Figure 2As shown in the figure, a fixture for clamping a filter screen according to the present invention is used to clamp the filter screen, and of course, it can also be used to clamp other sheet-like objects. It includes a first clamping plate 1, a second clamping plate 2, a first pressing plate 3 and a second pressing plate 4; symmetric first through holes 11 and second through holes 12 are provided on the first clamping plate 1; symmetric third through holes 21 and fourth through holes 22 are provided on the second clamping plate 2; a first connecting rod 5 and a second connecting rod 6 are fixedly connected to the inner side wall of the first clamping plate 1; the first connecting rod 5 and the second connecting rod 6 respectively pass through the third through hole 21 and the fourth through hole 22; springs are respectively sleeved on the outer parts of the first connecting rod 5 and the second connecting rod 6; a third connecting rod 7 and a fourth connecting rod 8 are fixedly connected to the inner side wall of the second clamping plate 2; the third connecting rod 7 and the fourth connecting rod 8 respectively pass through the first through hole 11 and the second through hole 12; springs are respectively sleeved on the outer parts of the third connecting rod 7 and the fourth connecting rod 8; the interiors of the first pressing plate 3 and the second pressing plate 4 are both hollow structures; symmetric first through holes 31 and second through holes 32 are provided on the inner side wall of the first pressing plate 3; symmetric third through holes 41 and fourth through holes 42 are provided on the inner side wall of the second pressing plate 4; the first connecting rod 5 and the second connecting rod 6 respectively pass through the third through hole 41 and the fourth through hole 42 and extend into the second pressing plate 4; nuts are respectively connected to the ends of the first connecting rod 5 and the second connecting rod 6; the third connecting rod 7 and the fourth connecting rod 8 respectively pass through the first through hole 31 and the second through hole 32 and extend into the first pressing plate 3, and nuts are respectively connected to the ends of the third connecting rod 7 and the fourth connecting rod 8; a guiding hole 9 is provided in the middle of the first clamping plate 1, and a guiding block 10 corresponding to the guiding hole 9 is fixedly connected to the inner side wall of the second clamping plate 2. The guiding hole 9 is trapezoidal, and the cross-section of the guiding block 10 is trapezoidal.

[0016] In order to facilitate the placement of the fixed first clamping plate 1 and second clamping plate 2, both the first clamping plate 1 and the second clamping plate 2 are of a stepped type. When the first clamping plate 1 and the second clamping plate 2 are combined, the first clamping plate 1 and the second clamping plate 2 form a "convex" - shaped structure, which is convenient for the placement of the first clamping plate 1 and the second clamping plate 2.

[0017] In order to facilitate the clamping of the springs, retaining plates 13 are respectively provided between the springs and the inner side walls of the first pressing plate 3 and the second pressing plate 4. External threads are provided on the outer parts of the first connecting rod 5, the second connecting rod 6, the third connecting rod 7 and the fourth connecting rod 8.

[0018] The specific use of the present invention is as follows: During installation, the first clamping plate 1, the second clamping plate 2, the first pressing plate 3 and the second pressing plate 4 are arranged according to Figure 1It is assembled in the following way. The second pressing plate 4 compresses the spring inward, then the ends of the first connecting rod 5 and the second connecting rod 6 are fixed with nuts, and finally the outer side wall of the second pressing plate 4 is closed, so that the ends of the first connecting rod 5 and the second connecting rod 6 are fixed in the second pressing plate 4 by nuts. Similarly, the first pressing plate 3 compresses the spring inward, then the ends of the third connecting rod 7 and the fourth connecting rod 8 are fixed with nuts, and finally the outer side wall of the first pressing plate 3 is closed, so that the ends of the third connecting rod 7 and the fourth connecting rod 8 are fixed in the first pressing plate 3 by nuts. Since the first clamping plate 1 and the second clamping plate 2 are respectively subjected to the elastic forces of the springs on both sides, and the directions of the elastic forces are opposite, due to the opposite acting forces, the first clamping plate 1 and the second clamping plate 2 can be clamped. And a guiding hole 9 is provided in the middle of the first clamping plate 1, and a guiding block 10 corresponding to the guiding hole 9 is fixedly connected to the inner side wall of the second clamping plate 2, so that the first clamping plate 1 and the second clamping plate 2 can be kept at the same horizontal position and will not be displaced. When in use, by compressing the first pressing plate 3 and the second pressing plate 4 towards each other, due to the action of the elastic force, the first clamping plate 1 and the second clamping plate 2 can be separated by a certain gap. The filter screen to be detected after cutting is placed in the gap between the first clamping plate 1 and the second clamping plate 2. When the first pressing plate 3 and the second pressing plate 4 are reset, the filter screen can be clamped between the first blocking block 1 and the second pressing plate 4, and then it can be placed under the scanner for observation. The operation is very simple.

[0019] Finally, it should be noted that the content not described in detail in the specification belongs to the prior art well-known to those skilled in the art. Those skilled in the art can achieve it without creative labor, so it will not be elaborated here.

[0020] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations of these embodiments still fall within the protection scope of the present invention.

Claims

1. A fixture for clamping a filter screen, characterized in that, it includes a first clamping plate (1), a second clamping plate (2), a first pressing plate (3) and a second pressing plate (4); first perforations (11) and second perforations (12) are symmetrically arranged on the first clamping plate (1); third perforations (21) and fourth perforations (22) are symmetrically arranged on the second clamping plate (2); a first connecting rod (5) and a second connecting rod (6) are fixedly connected to the inner side wall of the first clamping plate (1); the first connecting rod (5) and the second connecting rod (6) respectively pass through the third perforation (21) and the fourth perforation (22); springs are respectively sleeved on the outer parts of the first connecting rod (5) and the second connecting rod (6); a third connecting rod (7) and a fourth connecting rod (8) are fixedly connected to the inner side wall of the second clamping plate (2); the third connecting rod (7) and the fourth connecting rod (8) respectively pass through the first perforation (11) and the second perforation (12); springs are respectively sleeved on the outer parts of the third connecting rod (7) and the fourth connecting rod (8); the interiors of the first pressing plate (3) and the second pressing plate (4) are both hollow structures; first through holes (31) and second through holes (32) are symmetrically arranged on the inner side wall of the first pressing plate (3); third through holes (41) and fourth through holes (42) are symmetrically arranged on the inner side wall of the second pressing plate (4); the first connecting rod (5) and the second connecting rod (6) respectively pass through the third through hole (41) and the fourth through hole (42) and extend into the second pressing plate (4); nuts are respectively connected to the ends of the first connecting rod (5) and the second connecting rod (6); the third connecting rod (7) and the fourth connecting rod (8) respectively pass through the first through hole (31) and the second through hole (32) and extend into the first pressing plate (3), and nuts are respectively connected to the ends of the third connecting rod (7) and the fourth connecting rod (8); a guiding hole (9) is arranged in the middle of the first clamping plate (1), and a guiding block (10) corresponding to the guiding hole (9) is fixedly connected to the inner side wall of the second clamping plate (2); both the first clamping plate (1) and the second clamping plate (2) are step-shaped; the guiding hole (9) is trapezoidal; the cross section of the guiding block (10) is trapezoidal; a retaining piece (13) is respectively arranged between the spring and the inner side wall of the first pressing plate (3) and the second pressing plate (4).

2. The fixture for clamping a filter screen according to claim 1, characterized in that, external threads are arranged on the outer parts of the first connecting rod (5), the second connecting rod (6), the third connecting rod (7) and the fourth connecting rod (8).

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