Proportional valve

Abstract

The proportional valve comprises a valve body, a mounting plate and a quick-release structure, the valve body is mounted on the mounting plate through the quick-release structure, the quick-release structure comprises quick-release bases, limiting columns and quick-release rods, the quick-release bases are fixedly mounted on the two sides of the bottom end of the valve body, the limiting columns are fixedly mounted on the quick-release bases, and the quick-release rods are fixedly mounted on the limiting columns. A semicircular hole matched with the limiting column is formed in the side, away from the valve body, of the quick release base. The number of the limiting columns is two, the two limiting columns are both fixed to the mounting plate, and the distance between the circle centers of the two limiting columns is consistent with the distance between the circle centers of the two semicircular holes. According to the proportional valve, by adopting the matching mode of the quick-release base, the semicircular hole, the limiting column and the quick-release rod, when the valve body and the mounting plate are disassembled and assembled, the quick-release rod rotationally mounted on the limiting column is shifted, the process is simple, limiting is stable, and later maintenance of the valve body is facilitated.

Description

Technical Field

[0001] The utility model relates to a proportional valve, belonging to the technical field of hydraulic components. Background Art

[0002] A proportional valve is a device that can control the flow of liquid. It is generally installed in a hydraulic system to adjust the system's output pressure, flow and other parameters.

[0003] Currently common proportional valves usually include a proportional valve body and a mounting plate. The proportional valve body is fixed to the mounting plate. The proportional valve body is connected to a fluid delivery pipeline, and the mounting plate is installed in the hydraulic system by bolts.

[0004] However, in actual application, the operator needs to adjust the position of the proportional valve. When the operator needs to adjust the position of the proportional valve, since the mounting plate is installed in the hydraulic system by bolts, the operator needs to use additional auxiliary tools such as wrenches to remove the mounting plate, then place the proportional valve in a suitable position and then install the mounting plate. The adjustment is more troublesome, so there is room for improvement;

[0005] It can be seen that there is an urgent need for a proportional valve to achieve rapid disassembly and assembly of the valve body and the mounting plate. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a proportional valve. By adopting a quick-release base, a semicircular hole, a limit column and a quick-release rod, when disassembling and assembling the valve body and the mounting plate, the quick-release rod installed on the limit column can be turned, the process is simple, the limit is stable, and the valve body is easy to maintain in the later stage.

[0007] In order to achieve the above purpose / solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0008] A proportional valve comprises a valve body, a mounting plate and a quick-release structure, wherein the valve body is mounted on the mounting plate through the quick-release structure, wherein:

[0009] The quick-release structure comprises a quick-release base, a limiting column and a quick-release rod. The quick-release base is fixedly mounted on both sides of the bottom end of the valve body. A semicircular hole matching the limiting column is provided on one side of the quick-release base away from the valve body.

[0010] There are two limit columns, both of which are fixed on the mounting plate, and the distance between the centers of the two limit columns is consistent with the distance between the centers of the two semicircular holes;

[0011] The quick-release rod includes a semi-circular part and a rectangular part connected to each other. The width of the rectangular part is the same as the diameter of the semi-circular part. The semi-circular part of the quick-release rod is rotatably installed on the limit post. By rotating the quick-release rod to make the rectangular part located above the quick-release base, the limit of the valve body is achieved.

[0012] Further, the height of the limit post is the same as the height of the quick-release base.

[0013] Further, anti-slip lines are provided on the inner wall of the semi-circular hole.

[0014] Further, a locking structure is further included. The locking structure is arranged on the mounting plate and is located on the side of the limit post away from the valve body. The locking structure is used for locking the quick-release rod in the limited state.

[0015] Further, the locking structure includes a first support seat and a first locking post. The first support seat is fixed on the mounting plate. The first locking post is inserted into the first support seat and can move on the extension line of the straight line connected by the two limit posts.

[0016] A locking hole adapted to the first locking post is provided on the side of the semi-circular part of the quick-release rod away from the rectangular part.

[0017] Further, a limit spring and a support block are further included. The support block is fixed at the end of the first locking post away from the limit post. The limit spring is arranged on the side of the first support seat away from the limit post. One end of the limit spring is fixed to the first support seat, and the other end is fixed to the support block.

[0018] Further, the locking structure includes a second support seat, a second locking post and an adjusting rod. The second support seat is fixed on the mounting plate. The second locking post is threadedly connected to the second support seat.

[0019] The adjusting rod is fixed at the end of the second locking post away from the limit post. By rotating the adjusting rod, the second locking post can be driven to rotate and move on the extension line of the straight line connected by the two limit posts.

[0020] A locking hole adapted to the second locking post is provided on the side of the semi-circular part of the quick-release rod away from the rectangular part.

[0021] Further, a hollow groove is further included. The hollow groove is provided on the mounting plate and is located between the two limit posts.

[0022] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0023] The proportional valve provided by the utility model adopts the matching mode of the quick-release base, the semicircular hole, the limit column and the quick-release rod. When the valve body and the mounting plate are disassembled and assembled, it can be realized by turning the quick-release rod installed on the limit column. The process is simple, the limit is stable, and the valve body is easy to maintain in the later stage.

[0024] The proportional valve provided by the utility model can ensure the stability of the semicircular hole and the limit column after contact by arranging anti-skid patterns on the inner wall of the semicircular hole; and can ensure the stability of the valve body in the installed state by adopting two forms of locking structures to lock the quick-release rod in the limit state, thereby ensuring its stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a proportional valve provided in Example 1;

[0026] Figure 2 It is a schematic diagram of an implementation method of the locking structure in the proportional valve provided in Example 2;

[0027] Figure 3 It is a schematic diagram of another implementation of the locking structure in the proportional valve provided in Example 2.

[0028] In the figure: 1. valve body; 2. mounting plate; 3. quick-release base; 4. limit column; 5. quick-release rod; 6. semicircular hole; 7. support seat 1; 8. locking column 1; 9. limit spring; 10. support block; 11. support seat 2; 12. locking column 2; 13. adjusting rod; 14. hollow groove. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations. Embodiment 1

[0032] As Figure 1 shown, this embodiment provides a proportional valve, which includes a valve body 1, a mounting plate 2 and a quick-release structure. The valve body 1 is mounted on the mounting plate 2 through the quick-release structure, where,

[0033] The quick-release structure includes a quick-release base 3, a limit post 4 and a quick-release rod 5. The quick-release base 3 is fixedly installed on both sides of the bottom end of the valve body 1. A semi-circular hole 6 adapted to the limit post 4 is opened on the side of the quick-release base 3 away from the valve body 1;

[0034] There are two limit posts 4, and both limit posts 4 are fixed on the mounting plate 2, and the distance between the centers of the two limit posts 4 is the same as the distance between the centers of the two semi-circular holes 6;

[0035] The quick-release rod 5 includes a connected semi-circular part and a rectangular part. The width of the rectangular part is the same as the diameter of the semi-circular part, and the semi-circular part of the quick-release rod 5 is rotatably installed on the limit post 4. By rotating the quick-release rod 5 to make the rectangular part located above the quick-release base 3, the limit of the valve body 1 is realized.

[0036] In the above technical solution, by adopting the matching mode of the quick-release base 3, the semicircular hole 6, the limit column 4 and the quick-release rod 5, when the valve body 1 and the mounting plate 2 are disassembled and assembled, it can be realized by turning the quick-release rod 5 installed on the limit column 4. The process is simple, the limit is stable, and the valve body 1 is easy to maintain in the later stage. Embodiment 2

[0037] like Figure 2 and Figure 3 As shown, the proportional valve provided in this embodiment is different from the proportional valve provided in the first embodiment in that:

[0038] In order to ensure the limiting effect of the quick release rod 6 on the quick release base 2 , the height of the limiting column 4 is consistent with the height of the quick release base 3 .

[0039] In order to ensure the stability of the semicircular hole 6 and the limiting column 5 after contact, anti-slip lines are provided on the inner wall of the semicircular hole 6 .

[0040] In order to ensure the stability of the quick release rod 5 in the limited state, a locking structure is also included. The locking structure is arranged on the mounting plate 2 and is located on the side of the limiting column 4 away from the valve body 1. The locking structure is used to lock the quick release rod 5 in the limited state.

[0041] like Figure 2 As shown, in order to realize the locking of the quick release rod 5 in the limited position state by the locking structure, the locking structure includes a support seat 7 and a locking column 8, the support seat 7 is fixed on the mounting plate 2, the locking column 8 is plugged with the support seat 7, and can move on the extension line of the straight line connected by the two limit columns 4;

[0042] A locking hole matched with the locking column 1 8 is formed on one side of the semicircular portion of the quick release lever 5 away from the rectangular portion.

[0043] In order to ensure the stability of the locking column 8 when locking the quick release rod 6, it also includes a limit spring 9 and a support block 10. The support block 10 is fixed to the end of the locking column 8 away from the limit column 4, and the limit spring 9 is arranged on the side of the support seat 7 away from the limit column 4. One end of the limit spring 9 is fixed to the support seat 7, and the other end is fixed to the support block 10.

[0044] like Figure 3 As shown, the locking structure can also be used to lock the quick release rod 5 in the following manner, specifically including: a second support seat 11, a second locking column 12 and an adjusting rod 13, wherein the second support seat 11 is fixed on the mounting plate 2, and the second locking column 12 is threadedly connected to the second support seat 11;

[0045] The adjusting rod 13 is fixed to one end of the second locking column 12 away from the limit column 4. By means of the adjusting rod 13, the second locking column 12 can be driven to rotate and move the second locking column 12 on the extension line of the straight line connecting the two limit columns 4;

[0046] On the side of the semi-circular part of the quick-release rod 5 away from the rectangular part, a locking hole adapted to the second locking column 12 is provided.

[0047] As Figure 1 As shown, it further includes a hollow groove 14. The hollow groove 14 is provided on the mounting plate 2 and is located between the two limit columns 4. The hollow groove 14 is used for the heat dissipation of the valve body to ensure that the heat dissipation effect of the valve body 1 itself will not be affected after it is installed on the mounting plate 2.

[0048] In summary, for the proportional valve provided in this embodiment, by providing anti-slip lines on the inner wall of the semi-circular hole 6, the stability after the contact between the semi-circular hole 6 and the limit column 5 can be ensured; by adopting two forms of locking structures to lock the quick-release rod 5 in the limited state, the stability of the valve body 1 in the installed state can be ensured, thereby ensuring its stable operation.

[0049] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A proportional valve, characterized in that: It comprises a valve body (1), a mounting plate (2) and a quick-release structure, wherein the valve body (1) is mounted on the mounting plate (2) via the quick-release structure, wherein: The quick-release structure comprises a quick-release base (3), a limiting column (4) and a quick-release rod (5); the quick-release base (3) is fixedly mounted on both sides of the bottom end of the valve body (1); a semicircular hole (6) adapted to the limiting column (4) is provided on a side of the quick-release base (3) away from the valve body (1); Two limit columns (4) are provided, and both limit columns (4) are fixed on the mounting plate (2), and the distance between the centers of the two limit columns (4) is consistent with the distance between the centers of the two semicircular holes (6); The quick-release rod (5) comprises a semicircular portion and a rectangular portion which are connected to each other, the width of the rectangular portion being consistent with the diameter of the semicircular portion, and the semicircular portion of the quick-release rod (5) is rotatably mounted on the limiting column (4), and the valve body (1) is limited by rotating the quick-release rod (5) so that the rectangular portion is located above the quick-release base (3).

2. The proportional valve according to claim 1, characterized in that: The height of the limiting column (4) is consistent with the height of the quick-release base (3).

3. The proportional valve according to claim 1, characterized in that: Anti-slip patterns are provided on the inner wall of the semicircular hole (6).

4. The proportional valve according to claim 1, characterized in that: It also comprises a locking structure, which is arranged on the mounting plate (2) and located on a side of the limiting column (4) away from the valve body (1), and is used to lock the quick-release rod (5) in a limited state.

5. The proportional valve according to claim 4, characterized in that: The locking structure comprises a support seat 1 (7) and a locking column 1 (8), wherein the support seat 1 (7) is fixed on the mounting plate (2), and the locking column 1 (8) is plugged into the support seat 1 (7) and is capable of moving on an extension line of a straight line connecting the two limit columns (4); A locking hole matching the locking column 1 (8) is provided on one side of the semicircular portion of the quick-release rod (5) away from the rectangular portion.

6. The proportional valve according to claim 5, characterized in that: It also includes a limit spring (9) and a support block (10), wherein the support block (10) is fixed to one end of the locking column (8) away from the limit column (4), and the limit spring (9) is arranged on a side of the support seat (7) away from the limit column (4), one end of the limit spring (9) is fixed to the support seat (7), and the other end is fixed to the support block (10).

7. The proportional valve according to claim 4, characterized in that: The locking structure comprises a second support seat (11), a second locking column (12) and an adjusting rod (13); the second support seat (11) is fixed on the mounting plate (2); the second locking column (12) is threadedly connected to the second support seat (11); The adjusting rod (13) is fixed to one end of the second locking column (12) away from the limiting column (4), and the adjusting rod (13) can drive the second locking column (12) to rotate and make the second locking column (12) move on the extension line of the straight line connecting the two limiting columns (4); A locking hole matching the second locking column (12) is provided on one side of the semicircular portion of the quick-release rod (5) away from the rectangular portion.

8. The proportional valve according to claim 1, characterized in that: It also comprises a hollow groove (14), wherein the hollow groove (14) is formed on the mounting plate (2) and is located between the two limiting columns (4).

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