Adjustable rectangular structure

Abstract

The utility model discloses an adjustable rectangular structure, which belongs to the technical field of auxiliary spraying devices, and comprises a first L-shaped structure and a second L-shaped structure, the first L-shaped structure is fixedly connected with the second L-shaped structure to form a rectangular structure with a hollow middle part, the first L-shaped structure and the second L-shaped structure respectively comprise an L-shaped plate, a first extending plate and a second extending plate, the first extending plate and the second extending plate are arranged at the two ends of the bottom of the L-shaped plate in a telescopic mode respectively, the first extending plate and the second extending plate form an L-shaped structure, and the first extending plate of the first L-shaped structure is fixedly connected with the second extending plate of the second L-shaped structure. According to the adjustable rectangular structure, the first extending plate and the second extending plate are arranged at the two ends of the bottom of the L-shaped plate in a telescopic mode, the size of the rectangular structure with the hollow middle in the adjustable rectangular structure can be changed at will, then the spraying size is changed, the structure is light, and operation is easy and saves labor.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary spraying devices, and more specifically, relates to an adjustable rectangular structure. Background Technology

[0002] A fuel cell chip is a catalyst / proton exchange membrane assembly, abbreviated as CCM, which is made by coating fuel cell catalysts on both sides of a proton exchange membrane.

[0003] Currently, for the spraying of rectangular CCMs with fixed spraying dimensions, a stainless steel cover plate with a hollow rectangular center needs to be made for each sample of a certain size. This increases the product cost, and the cover plate is heavy and difficult to operate. With a large number of sample sizes, the cover plate is also difficult to store. Utility Model Content

[0004] The main objective of this invention is to provide an adjustable rectangular structure to solve the problems mentioned above in the background.

[0005] According to a first aspect of the present invention, an adjustable rectangular structure is provided, including a first L-shaped structure and a second L-shaped structure. The first L-shaped structure and the second L-shaped structure are fixedly connected to form a rectangular structure with a hollow center. Both the first L-shaped structure and the second L-shaped structure include an L-shaped plate, a first protruding plate, and a second protruding plate. The first protruding plate and the second protruding plate are respectively telescopically disposed at the bottom ends of the L-shaped plate. The first protruding plate and the second protruding plate form an L-shaped structure. The first protruding plate of the first L-shaped structure is fixedly connected to the second protruding plate of the second L-shaped structure.

[0006] In a specific embodiment of this utility model, a groove is provided at the bottom of the L-shaped plate, a semi-circular stop is provided at one end of the groove, and a limiting block is provided at the other end of the groove.

[0007] In a specific embodiment of this utility model, the top of both the first protruding plate and the second protruding plate is provided with a first groove that cooperates with the semi-circular stop block.

[0008] In a specific embodiment of this utility model, scale lines are provided on the L-shaped plate, the first protruding plate, and the second protruding plate.

[0009] In a specific embodiment of this utility model, a first vertical plate and a second vertical plate are respectively provided on both sides of the L-shaped plate, a first horizontal plate is connected to one end of the first vertical plate, a first locking plate is connected to the other end of the first horizontal plate, and a second horizontal plate is connected to one end of the second vertical plate.

[0010] In a specific embodiment of this utility model, the length of the first vertical plate is greater than the length of the second vertical plate, and a through hole is provided on the first vertical plate, on which a fixing bolt is provided.

[0011] In a specific embodiment of this utility model, a second groove that cooperates with the first card plate is provided on one side of both the first protruding plate and the second protruding plate.

[0012] In a specific embodiment of this utility model, a third groove that cooperates with the second horizontal plate is provided on the other side of both the first protruding plate and the second protruding plate.

[0013] In a specific embodiment of this utility model, the bottom of the first protruding plate near the second protruding plate is recessed inward to form a first recessed space, and a fixing post is provided on the first recessed space.

[0014] In a specific embodiment of this utility model, the top of the second protruding plate near the first protruding plate is recessed inward to form a second recessed space, and an assembly hole for fixed connection with the fixing column is provided on the second recessed space.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] This adjustable rectangular structure is telescopically mounted at both ends of the bottom of the L-shaped plate via a first and a second extension plate. This allows the size of the hollowed-out rectangular structure in the middle to be freely changed, thereby altering the spraying dimensions. The structure is lightweight and easy to operate. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the adjustable rectangular structure in one embodiment of the present invention;

[0019] Figure 2 This is an exploded structural diagram of an adjustable rectangular structure in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the L-shaped plate in one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the first protruding plate in one embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the second protruding plate in one embodiment of the present invention. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0028] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0029] Reference Figures 1 to 5As shown, an adjustable rectangular structure is provided, including a first L-shaped structure and a second L-shaped structure. The first L-shaped structure and the second L-shaped structure are fixedly connected to form a rectangular structure with a hollow center. Both the first L-shaped structure and the second L-shaped structure include an L-shaped plate 1, a first protruding plate 2, and a second protruding plate 3. The first protruding plate 2 and the second protruding plate 3 are respectively telescopically disposed at the bottom ends of the L-shaped plate 1. The first protruding plate 2 and the second protruding plate 3 form an L-shaped structure. The first protruding plate 2 of the first L-shaped structure and the second protruding plate 3 of the second L-shaped structure are fixedly connected.

[0030] In this embodiment, the first protruding plate 2 and the second protruding plate 3 are telescopically installed at both ends of the bottom of the L-shaped plate 1. By pulling the first protruding plate 2 and the second protruding plate 3, the size of the rectangular cutout in the middle can be changed, thereby adjusting various spraying sizes.

[0031] In one embodiment of the present invention, a groove 11 is provided at the bottom of the L-shaped plate 1, a semi-circular stop block 12 is provided at one end of the groove 11, and a limiting block 20 is provided at the other end of the groove 11.

[0032] Furthermore, the top of both the first protruding plate 2 and the second protruding plate 3 is provided with a first groove 4 that cooperates with the semi-circular stop block 12.

[0033] In this embodiment, the semi-circular stop 12 cooperates with the first groove 4 to restrict the first protruding plate 2 and the second protruding plate 3 from sliding out of the groove 11 of the L-shaped plate 1, so that the first protruding plate 2 and the second protruding plate 3 cannot detach from the L-shaped plate 1. When one end of the first protruding plate 2 and the second protruding plate 3 touches the limiting block 20, it indicates that the size of the hollowed-out rectangle in the middle is the smallest at this time.

[0034] In one embodiment of this utility model, scale lines are provided on the L-shaped plate 1, the first protruding plate 2, and the second protruding plate 3 to facilitate size adjustment.

[0035] In one embodiment of the present invention, a first vertical plate 13 and a second vertical plate 14 are respectively provided on both sides of the L-shaped plate 1. One end of the first vertical plate 13 is connected to a first horizontal plate 15, the other end of the first horizontal plate 15 is connected to a first clamping plate 16, and one end of the second vertical plate 14 is connected to a second horizontal plate 17.

[0036] Furthermore, the length of the first vertical plate 13 is greater than the length of the second vertical plate 14. A through hole 131 is provided on the first vertical plate 13, and a fixing bolt 18 is provided on the through hole 131. The fixing bolt 18 is used to lock the first protruding plate 2 and the second protruding plate 3 to prevent the range from changing during the spraying process.

[0037] Furthermore, a second groove 5 that cooperates with the first locking plate 16 is provided on one side of the first protruding plate 2 and the second protruding plate 3, and a third groove 6 that cooperates with the second horizontal plate 17 is provided on the other side of the first protruding plate 2 and the second protruding plate 3. The second groove 5 and the third groove 6 make it difficult for the first protruding plate 2 and the second protruding plate 3 to fall out when sliding, and at the same time play a positioning role, making it convenient for users to assemble quickly.

[0038] In one embodiment of the present invention, the bottom of the first protruding plate 2 near the second protruding plate 3 is recessed inward to form a first recessed space 21, and a fixing post 22 is provided on the first recessed space 21.

[0039] Furthermore, the top of the second protruding plate 3 near the first protruding plate 2 is recessed inward to form a second recessed space 31. The second recessed space 31 is provided with an assembly hole 32 that is fixedly connected to the fixing post 22. The fixing post 22 is fixedly connected to the assembly hole 32, so that the two L-shaped structures are combined into a rectangular structure with a hollow center.

[0040] The steps for using this utility model are as follows:

[0041] 1) Adjust the distance between the first protruding plate 2 and the second protruding plate 3 of each L-shaped structure according to the required size of the CCM to be sprayed;

[0042] 2) Tighten the fixing bolts 18 to fix the L-shaped plate 1 to the first protruding plate 2 and the second protruding plate 3;

[0043] 3) Combine the two L-shaped structures together so that the fixing post 22 of the first protruding plate 2 and the assembly hole 32 of the second protruding plate 3 can be combined to achieve positioning and fixation;

[0044] 4) Place the assembled rectangular structure on the spraying platform, which also contains the proton exchange membrane to be sprayed. The rectangular structure is directly above the proton exchange membrane.

[0045] 5) Begin spraying.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable rectangular structure comprising a first L-shaped structure and a second L-shaped structure, characterized in that, The first L-shaped structure and the second L-shaped structure are fixedly connected to form a rectangular structure with a hollow middle part, the first L-shaped structure and the second L-shaped structure each comprise an L-shaped plate (1), a first extending plate (2) and a second extending plate (3), the first extending plate (2) and the second extending plate (3) are respectively arranged at the two ends of the bottom of the L-shaped plate (1) in an extending and retracting manner, the first extending plate (2) and the second extending plate (3) form an L-shaped structure, and the first extending plate (2) of the first L-shaped structure is fixedly connected with the second extending plate (3) of the second L-shaped structure.

2. The adjustable rectangular structure of claim 1, wherein, A sliding groove (11) is arranged at the bottom of the L-shaped plate (1), one end of the sliding groove (11) is provided with a semicircular stop block (12), and the other end of the sliding groove (11) is provided with a limiting block (20).

3. The adjustable rectangular structure of claim 2, wherein, The top of the first extending plate (2) and the top of the second extending plate (3) are each provided with a first groove (4) matched with the semicircular stop block (12).

4. The adjustable rectangular structure of claim 1, wherein, The L-shaped plate (1), the first extending plate (2) and the second extending plate (3) are each provided with a scale line.

5. The adjustable rectangular structure of claim 1, wherein, The L-shaped plate (1) is provided with a first vertical plate (13) and a second vertical plate (14) at the two sides thereof respectively, one end of the first vertical plate (13) is connected with a first horizontal plate (15), the other end of the first horizontal plate (15) is connected with a first clamping plate (16), and one end of the second vertical plate (14) is connected with a second horizontal plate (17).

6. The adjustable rectangular structure of claim 5, wherein, The length of the first vertical plate (13) is greater than the length of the second vertical plate (14), a through hole (131) is arranged on the first vertical plate (13), and a fixing bolt (18) is arranged on the through hole (131).

7. The adjustable rectangular structure of claim 5, wherein, One side of the first extending plate (2) and one side of the second extending plate (3) are each provided with a second groove (5) matched with the first clamping plate (16).

8. The adjustable rectangular structure of claim 5, wherein, The other side of the first extending plate (2) and the other side of the second extending plate (3) are each provided with a third groove (6) matched with the second horizontal plate (17).

9. The adjustable rectangular structure of claim 1, wherein, The bottom of one end of the first extending plate (2) close to the second extending plate (3) is recessed inward to form a first recessed space (21), and a fixing column (22) is arranged on the first recessed space (21).

10. The adjustable rectangular structure of claim 9, wherein, The top of one end of the second extending plate (3) close to the first extending plate (2) is recessed inward to form a second recessed space (31), and an assembly hole (32) fixedly connected with the fixing column (22) is arranged on the second recessed space (31).

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