Driving rod and clamp spring for manual valve

Abstract

The utility model relates to a drive rod and a clamp spring for a hand-operated valve, which comprise a drive main rod fixedly arranged on the hand-operated valve, the drive main rod comprises a limiting block arranged on the outer side wall of the middle part of the drive main rod and used for limiting the position of the hand-operated valve, and a clamp spring groove arranged at one end of the drive main rod, and the limiting block and the drive main rod are integrally formed; the driving tooth is connected with one end, far away from the clamp spring groove, of the main rod; the driving handle is connected with the driving teeth, and the driving main rod, the driving teeth and the driving handle are sequentially connected in a Z shape and are integrally formed. Compared with the prior art, the device has the advantages of high stability, difficulty in deviation or falling, simplicity in operation, high production efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of drive rods, in particular to a drive rod and a clamping spring for a manual valve. Background Art

[0002] At present, the existing manual valves adapted to automobiles are mostly composed of valve body, valve core, drive rod, and drive rod fastening screws. After assembly, the drive rod fastening screws are easy to loosen or fall off, and the drive rod is easy to fall off, making the manual valve ineffective. Further causing the manual valve to lose its function and even cause safety hazards. In addition, the overall weight of the parts is large, and the assembly and debugging are cumbersome, which affects the installation rhythm.

[0003] Patent publication number CN108644380A discloses a drive rod assembly, including a shift shaft, a shift plate and a drive rod. Since the rod sleeve slides on the drive rod without direct contact and an elastic spring seat is arranged in the rod sleeve, the drive rod assembly can prevent eccentricity and wear of the rod sleeve. However, the spring seat sleeve in the drive rod assembly works on the drive rod, which increases the assembly steps and makes debugging cumbersome. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and provide a driving rod and a retaining spring for a manual valve, which have strong stability, are not easy to deviate or fall off, are simple to operate, and have high production efficiency.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A driving rod for a manual valve, comprising:

[0007] A driving main rod fixedly mounted on the manual valve, comprising a limit block arranged on the outer side wall of the middle part of the driving main rod and limiting the position of the manual valve, and a retaining ring groove arranged at one end of the driving main rod, wherein the limit block is integrally formed with the driving main rod;

[0008] A driving tooth connected to an end of the main rod away from the retaining spring groove;

[0009] A driving handle connected to the driving tooth, wherein the driving main rod, the driving tooth and the driving handle are connected in sequence in a Z shape and are integrally formed.

[0010] Furthermore, the limit blocks protrude from both sides of the driving main rod and are symmetrically distributed along the driving main rod.

[0011] Furthermore, the stop block is a flat rectangular shape with equal sides to prevent deviation and good stability, and the two exposed corners are arc angles. It is obtained by stamping the driving main rod and is integrated with the driving main rod, without the need for connection methods such as pasting, welding, and plugging, and no additional raw materials are needed, which saves raw materials, and has higher stability, can effectively resist the manual valve, and the stop block will not fall off easily during use.

[0012] Furthermore, the driving main rod, the driving teeth and the driving handle are connected in an arc manner, and the connection is smooth and not easy to break.

[0013] Furthermore, the error value of the driving rod is 0.2-0.35 mm, which has high precision and prevents the driving rod from being offset during use.

[0014] Furthermore, the length ratio of the driving main rod, the driving teeth and the driving handle is (2-2.5): (4-4.5): 1, which is conducive to the assembly of the driving rod and the manual valve, and is conducive to stability, preventing it from loosening or falling off after assembly, causing the manual valve to fail.

[0015] Furthermore, the width of the limit block is 0.1 to 0.3 of the length of the driving main rod, and the distance between the limit block and the retaining ring groove is slightly larger than the width of the manual valve, so that the manual valve and the driving rod have a compact structure, and the gap is only a few tenths of a millimeter, which can effectively prevent the driving rod or the manual valve from falling off.

[0016] Furthermore, the diameter of the retaining ring groove is 0.7 to 0.9 of the diameter of the driving main rod.

[0017] Furthermore, the diameter of the driving main rod is smallest near the limit block, increases away from the limit block, and is largest at the connection with the driving tooth and at the end where the retaining ring groove is provided. The diameter change rate of the driving main rod 1 is a constant.

[0018] Furthermore, the preparation process of the driving rod includes the following steps:

[0019] A1. Forming the steel wire into one piece to obtain a primary product of the driving rod;

[0020] A2. Simultaneously bending two locations of the initial product of the driving rod to obtain a bent driving rod, including a driving main rod, a driving tooth and a driving handle;

[0021] A3, forming the limit block on the driving main rod by die stamping;

[0022] A4, turning one end of the driving main rod to obtain the retaining ring groove;

[0023] A5. Perform heat treatment and surface treatment on the surface of the bent driving rod to obtain a driving rod product.

[0024] Furthermore, in step A2, the two positions of the initial product of the driving rod are bent at the same time to obtain a bent driving rod. Compared with the conventional driving rod that bends one side first and then the other side, the driving rod has higher requirements for precision. Both ends of the steel wire are stressed at the same time, and the production efficiency is higher when both ends of the steel wire are bent at the same time. If this step causes the precision of the driving rod to fail to meet the requirements, errors will occur in the subsequent steps A3 and A4.

[0025] Furthermore, in step A3, the mold is located on both sides of the driving main rod and is composed of two rectangles of different sizes.

[0026] Furthermore, in step A5, the purpose of heat treatment and surface treatment is to increase the strength, corrosion resistance and aesthetics of the driving rod product, and conventional techniques in the field are used, which does not involve the innovative aspects of the present utility model.

[0027] A retaining ring for a manual valve is used in conjunction with the above-mentioned driving rod. After the driving rod passes through a hole on the manual valve, the retaining ring is sleeved on the retaining ring groove to fix the driving rod.

[0028] Furthermore, the retaining spring is an E-type retaining spring.

[0029] Furthermore, the distance between the limit block and the retaining spring is 0.3 to 0.4 of the length of the driving main rod.

[0030] Compared with the prior art, the utility model has the following advantages:

[0031] (1) The utility model obtains a limit block integrally formed with the driving main rod by stamping through a mold. When the limit block is used in conjunction with a retaining spring to fix a manual valve, the retaining spring, the limit block and the manual valve are compactly arranged with high precision and no loosening. Compared with the conventional limit block arranged from the outer shell, the limit block is integrally formed with the driving main rod, is not prone to deviation, reduces the operating procedures, and has higher operating efficiency.

[0032] (2) The driving rod of the utility model is produced with steel wire, the product has high size and precision, high product qualification rate, good consistency and stability, and good interchangeability, which can meet the requirements of assembly and use.

[0033] (3) The drive rod of the utility model has high production efficiency, simple operation, and is easy to form mechanized production, thus liberating labor. Compared with traditional drive rods, no mechanical waste is generated, energy consumption is low, and production capacity is greatly improved while costs are reduced.

[0034] (4) The parts of the driving rod of the utility model are processed as a whole, and the parts are light in weight and high in strength.

[0035] (5) The driving rod of the utility model effectively reduces costs, has a simple structure and high overall strength.

[0036] (6) The external dimensions of the driving rod of the utility model can be adjusted according to the actual use environment, thereby increasing its applicability and extensiveness.

[0037] (7) Compared with the traditional type, the driving rod of the utility model has the advantages of simple structure, light weight, good rigidity and outstanding consistency, and is widely used in the automotive industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A three-dimensional structural diagram of the driving rod described in Example 1;

[0039] Figure 2 A front view of the driving rod described in Example 1;

[0040] Figure 3 This is a schematic structural diagram of the mold described in Example 1;

[0041] Figure 4 This is a schematic diagram of the structure of the retaining spring shown in Example 1.

[0042] Description of the markings in the figure:

[0043] 1-driving main rod, 11-limiting block, 12-circlip groove; 2-driving tooth; 3-driving handle; 4-circlip; 5-mold. DETAILED DESCRIPTION

[0044] The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following embodiments. In the following implementation methods or embodiments, if there is no special description of the functional components or structures, it indicates that they are all conventional components or conventional structures used in the field to achieve the corresponding functions.

[0045] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Example 1

[0048] This embodiment provides a driving rod for a manual valve, such as Figure 1 and Figure 2 As shown, including:

[0049] A driving main rod 1 fixedly mounted on the manual valve comprises a limit block 11 arranged on the outer side wall of the middle part of the driving main rod 1 and limiting the position of the manual valve, and a retaining ring groove 12 arranged at one end of the driving main rod 1, wherein the limit block 11 is integrally formed with the driving main rod 1;

[0050] A driving tooth 2 connected to an end of the main rod 1 away from the retaining spring groove 12;

[0051] The driving handle 3 connected to the driving tooth 2, the driving main rod 1, the driving tooth 2 and the driving handle 3 are connected in sequence in a Z shape and are integrally formed.

[0052] In this embodiment, the stopper 11 protrudes from both sides of the driving rod 1 and is symmetrically distributed along the driving rod 1. The stopper 11 is in a flat rectangular shape, and its two exposed corners are arc angles. The error value of the driving rod is 0.2mm.

[0053] A process for preparing a driving rod for a manual valve comprises the following steps:

[0054] A1. Forming the steel wire into one piece to obtain a primary product of the driving rod;

[0055] A2, simultaneously bending two positions of the initial product of the driving rod to obtain a bent driving rod, including a driving main rod 1, a driving tooth 2 and a driving handle 3;

[0056] A3, stamping the driving main rod 1 with a mold 5 to obtain the limit block 11;

[0057] A4, turning one end of the driving main rod 1 to obtain the retaining ring groove 12;

[0058] A5. Perform heat treatment and surface treatment on the surface of the bent driving rod to obtain a driving rod product.

[0059] In this embodiment, in step A2, two positions of the initial product of the driving rod are bent at the same time to obtain a bent driving rod. Compared with the conventional driving rod that bends one side first and then the other side, the driving rod has higher requirements for precision. Both ends of the steel wire are stressed at the same time, and the production efficiency is higher when both ends of the steel wire are bent at the same time. If this step causes the precision of the driving rod to fail to meet the requirements, errors will occur in the subsequent steps A3 and A4.

[0060] In this embodiment, in step A3, the mold 5 is located on both sides of the driving main rod 1, and is composed of two rectangles of different sizes. Figure 3 shown.

[0061] In this embodiment, in step A5, the purpose of heat treatment and surface treatment is to increase the strength, corrosion resistance and aesthetics of the driving rod product, and conventional technology in the field is adopted, which does not involve the innovation of the present utility model.

[0062] This embodiment provides a retaining spring for a manual valve, which is used in conjunction with the above-mentioned driving rod. After the driving rod passes through the hole on the manual valve, the retaining spring 4 is sleeved on the retaining spring groove 12 to fix the driving rod.

[0063] In this embodiment, if Figure 4 As shown, the retaining spring 4 is an E-type retaining spring.

[0064] Example 2

[0065] This embodiment provides a driving rod for a manual valve, such as Figure 1 and Figure 2 As shown, including:

[0066] A driving main rod 1 fixedly mounted on the manual valve comprises a limit block 11 arranged on the outer side wall of the middle part of the driving main rod 1 and limiting the position of the manual valve, and a retaining ring groove 12 arranged at one end of the driving main rod 1, wherein the limit block 11 is integrally formed with the driving main rod 1;

[0067] A driving tooth 2 connected to an end of the main rod 1 away from the retaining spring groove 12;

[0068] The driving handle 3 connected to the driving tooth 2, the driving main rod 1, the driving tooth 2 and the driving handle 3 are connected in sequence in a Z shape and are integrally formed.

[0069] In this embodiment, the limit block 11 is a flat rectangular shape with equal sides to prevent displacement and good stability. The two exposed corners are arc angles. It is obtained by stamping the driving main rod 1, and is integrated with the driving main rod 1. It does not require connection methods such as pasting, welding, and plugging. It does not need to use additional raw materials, which saves raw materials, and has higher stability. It can effectively resist the manual valve, and the limit block will not fall off easily during use. The driving main rod 1, the driving teeth 2 and the driving handle 3 are connected in an arc, and the connection is smooth and not easy to break. The error value of the driving rod is 0.2~0.35mm, with high precision, which prevents the driving rod from being offset during use. The length ratio of the driving main rod 1, the driving teeth 2 and the driving handle 3 is 2.23:4.37:1, which is conducive to the assembly of the driving rod and the manual valve, and is conducive to stability, preventing it from loosening or falling off after assembly, causing the manual valve to fail. The width of the limit block 11 is 0.116 of the length of the driving main rod 1. The distance between the limit block 11 and the retaining spring groove 12 is slightly larger than the width of the manual valve, making the manual valve and the driving rod compact. The gap is only a few tenths of a millimeter, which can effectively prevent the driving rod or the manual valve from falling off. The diameter of the retaining spring groove 12 is 0.8 of the diameter of the driving main rod 1. The diameter of the driving main rod 1 is the smallest near the limit block 11, and increases away from the limit block 11. The diameter is the largest at the connection with the driving tooth 2 and at the end where the retaining spring groove 12 is provided. The diameter change rate of the driving main rod 1 is a constant value.

[0070] A process for preparing a driving rod for a manual valve comprises the following steps:

[0071] A1. Forming the steel wire into one piece to obtain a primary product of the driving rod;

[0072] A2, simultaneously bending two positions of the initial product of the driving rod to obtain a bent driving rod, including a driving main rod 1, a driving tooth 2 and a driving handle 3;

[0073] A3, stamping the driving main rod 1 with a mold 5 to obtain the limit block 11;

[0074] A4, turning one end of the driving main rod 1 to obtain the retaining ring groove 12;

[0075] A5. Perform heat treatment and surface treatment on the surface of the bent driving rod to obtain a driving rod product.

[0076] In this embodiment, in step A2, two positions of the initial product of the driving rod are bent at the same time to obtain a bent driving rod. Compared with the conventional driving rod that bends one side first and then the other side, the driving rod has higher requirements for precision. Both ends of the steel wire are stressed at the same time, and the production efficiency is higher when both ends of the steel wire are bent at the same time. If this step causes the precision of the driving rod to fail to meet the requirements, errors will occur in the subsequent steps A3 and A4.

[0077] In this embodiment, in step A3, the mold 5 is located on both sides of the driving main rod 1, and is composed of two rectangles of different sizes. Figure 3 shown.

[0078] In this embodiment, in step A5, the purpose of heat treatment and surface treatment is to increase the strength, corrosion resistance and aesthetics of the driving rod product, and conventional technology in the field is adopted, which does not involve the innovation of the present utility model.

[0079] This embodiment provides a retaining spring for a manual valve, which is used in conjunction with the above-mentioned driving rod. After the driving rod passes through the hole on the manual valve, the retaining spring 4 is sleeved on the retaining spring groove 12 to fix the driving rod.

[0080] In this embodiment, if Figure 4 As shown, the retaining spring 4 is an E-type retaining spring. The distance between the limit block 11 and the retaining spring 4 is 0.35 of the length of the driving main rod 1.

[0081] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A driving rod for a manual valve, characterized in that: include: A driving main rod (1) fixedly mounted on a manual valve, comprising a limit block (11) arranged on an outer side wall of a middle portion of the driving main rod (1) and limiting the position of the manual valve, and a retaining ring groove (12) arranged at one end of the driving main rod (1), wherein the limit block (11) and the driving main rod (1) are integrally formed; A driving tooth (2) connected to an end of the main rod (1) away from the retaining spring groove (12); A driving handle (3) connected to the driving tooth (2); the driving main rod (1), the driving tooth (2) and the driving handle (3) are connected in sequence in a Z-shape and are integrally formed.

2. A driving rod for a manual valve according to claim 1, characterized in that: The limit blocks (11) protrude from both sides of the driving main rod (1) and are symmetrically distributed along the driving main rod (1).

3. A driving rod for a manual valve according to claim 1, characterized in that: The limit block (11) is in a flat rectangular shape, and its two exposed corners are arc corners.

4. A driving rod for a manual valve according to claim 1, characterized in that: The driving main rod (1), the driving teeth (2) and the driving handle (3) are connected in an arc.

5. A driving rod for a manual valve according to claim 1, characterized in that: The error value of the driving rod is 0.2 to 0.35 mm.

6. A driving rod for a manual valve according to claim 1, characterized in that: The length ratio of the driving main rod (1), the driving tooth (2) and the driving handle (3) is (2-2.5): (4-4.5): 1; The width of the limit block (11) accounts for 0.1 to 0.3 of the length of the driving main rod (1); The diameter of the retaining ring groove (12) is 0.7 to 0.9 of the diameter of the driving main rod (1).

7. A driving rod for a manual valve according to claim 1, characterized in that: The driving main rod (1) has the smallest diameter near the limit block (11), increases in diameter away from the limit block (11), and has the largest diameter at the connection with the driving tooth (2) and at the end where the retaining ring groove (12) is provided.

8. A retaining spring for a manual valve, used in conjunction with the driving rod according to any one of claims 1 to 5, characterized in that: After the driving rod passes through the hole on the manual valve, the retaining ring (4) is sleeved on the retaining ring groove (12) to fix the driving rod.

9. A retaining spring for a manual valve according to claim 8, characterized in that: The clamping spring (4) is an E-type clamping spring.

10. A retaining spring for a manual valve according to claim 8, characterized in that: The distance between the limit block (11) and the clamping spring (4) is 0.3 to 0.4 of the length of the driving main rod (1).

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