Adjusting device for overflow valve

Abstract

The utility model relates to the technical field of overflow valves, and discloses an adjusting device for an overflow valve, which comprises a pressure valve rod penetrating through the top of an overflow valve main body; the supporting seat is arranged at the top of the overflow valve main body, the top end of the supporting seat is rotationally connected with a pressure rod, and a plurality of hook grooves are formed in the pressure rod; and one end of the spring assembly is hooked on one hook groove, and the other end of the spring assembly is hooked on the anchor bolt. A novel adjusting mode is adopted, a lever structure and an external spring assembly are designed, the length of a force arm is adjusted by changing the hanging position of the spring assembly, therefore, pressure adjustment of the valve element is achieved, operation is easy, the principle is ingenious, the adjusting result can be visually reflected, and professional experience is not needed.

Description

Technical Field

[0001] This utility model relates to the field of overflow valve technology, specifically to an adjustment device for an overflow valve. Background Technology

[0002] A relief valve is a hydraulic pressure control valve used in fixed-displacement pump throttling systems where the pump provides a constant flow rate. When system pressure increases, the required flow rate decreases. At this time, the relief valve opens, allowing excess flow to return to the oil tank, ensuring a constant inlet pressure (i.e., pump outlet pressure). During normal system operation, the valve is closed. The relief valve only opens when the load exceeds the specified limit (system pressure exceeds the set pressure) to provide overload protection and prevent further pressure increases.

[0003] Existing relief valve pressure regulation typically involves adjusting the top of the valve to change the compression length of the internal spring. This method is not very intuitive and requires some experience. Therefore, we propose a regulating device for relief valves to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustment device for an overflow valve to solve the problem of excessively large size differences in the waste materials crushed by the crushing mechanism mentioned in the background art.

[0005] The technical solution of this utility model is as follows:

[0006] A regulating device for an overflow valve, comprising:

[0007] A pressure valve stem penetrating from the top of the relief valve body;

[0008] A support base is provided on the top of the overflow valve body, and a pressure rod is rotatably connected to the top of the support base. The pressure rod is provided with several hook grooves.

[0009] A spring assembly, one end of which is hooked onto one of the hook grooves, and the other end of which is hooked onto an anchor bolt.

[0010] Preferably, the pressure valve stem is located at the center of the top of the relief valve body.

[0011] Preferably, the support base is located at a non-central position on the top of the overflow valve body, and the support base and the top cover of the overflow valve body are an integral structure.

[0012] Preferably, the top of the support base is provided with a rotating shaft, and the connecting end of the pressure rod is provided with a pin hole.

[0013] Preferably, the anchor bolt is provided with a hanging ring, and the hook at the bottom end of the spring assembly passes through the hanging ring.

[0014] Preferably, the bottom end of the anchor bolt is provided with threads, and the threaded portion at the bottom end of the anchor bolt is provided with a limit bolt.

[0015] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0016] This utility model adopts a new adjustment method, designs a lever structure and an external spring assembly. By changing the mounting position of the spring assembly, the length of the lever arm can be adjusted, thereby realizing the pressure adjustment of the valve core. It is simple to operate, ingenious in principle, and can intuitively show the adjustment result without requiring professional experience. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0018] Figure 2 This is a partial perspective view of the present utility model.

[0019] In the diagram: 1. Overflow valve body; 11. Valve outlet; 12. Valve inlet; 13. Pressure valve stem; 2. Support seat; 21. Rotary shaft; 3. Pressure rod; 31. Hook groove; 4. Spring assembly; 5. Anchor bolt; 51. Hanging ring; 6. Limit bolt. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Please see Figure 1-2 One embodiment provided by this utility model:

[0022] An adjusting device for an overflow valve includes a pressure valve stem 13 penetrating from the top of the overflow valve body 1. Referring to the accompanying drawings, in this embodiment, the bottom of the overflow valve body 1 is provided with a valve inlet 12, and one side of the overflow valve body 1 is provided with a valve outlet 11. The pressure valve stem 13 is vertically designed and also includes a support base 2, a pressure rod 3, a groove 31, a spring assembly 4, and an anchor bolt 5. The support base 2 is located at the top of the overflow valve body 1, and the top of the support base 2 is rotatably connected to the pressure rod 3. The pressure rod 3 is provided with several grooves 31. The top of the pressure valve stem 13 is pressed by the pressure rod 3. After the pressure increases, the pressure valve stem 13 can lift the pressure rod 3, thereby enabling the valve inlet 12 and the valve outlet 11 to communicate.

[0023] One end of the spring assembly 4 is hooked onto one of the hook grooves 31, and the other end of the spring assembly 4 is hooked onto the anchor bolt 5. The bottom of the anchor bolt 5 can be connected to the frame or mounting bracket, etc. During the process of the pressure rod 3 being lifted, the spring assembly 4 is stretched. Referring to the attached drawings, in this embodiment, the pressure rod 3 and the support seat 2 form a lever structure. By selecting different hook grooves 31, the lever arm length can be changed, and the pressure can be adjusted without changing the spring tension.

[0024] Furthermore, at the center of the top of the pressure valve stem 13 and the relief valve body 1, specifically, referring to the attached drawings, the bottom end of the pressure valve stem 13 is inserted into the flow channel of the valve inlet 12. When the pressure valve stem 13 rises, the valve inlet 12 can communicate with the valve outlet 11 to allow for overflow.

[0025] Furthermore, the support base 2 is located off-center at the top of the overflow valve body 1, and the support base 2 and the top cover of the overflow valve body 1 are an integral structure. Specifically, in this embodiment, the support base 2 and the valve cover at the top of the overflow valve body 1 are integrally cast, which is convenient to produce, has high structural strength, and does not require assembly.

[0026] Furthermore, a rotating shaft 21 is provided at the top of the support base 2, and a pin hole is provided at the connecting end of the pressure rod 3. Combined with... Figure 2 In this embodiment, the top and back of the support base 2 are provided with recesses, the rotating shaft 21 passes through the recessed area, and the connecting end of the pressure rod 3 is provided with a slot. After being inserted into the top of the support base 2, the rotating shaft 21 passes through the pin control of the pressure rod 3 to realize the rotational connection between the pressure rod 3 and the top of the support base 2.

[0027] Furthermore, the anchor bolt 5 is provided with a hanging ring 51, through which the hook at the bottom of the spring assembly 4 passes. Specifically, the hanging ring 51 designed in this embodiment facilitates the connection of the hook at the bottom of the spring assembly 4 and also serves to prevent detachment.

[0028] Furthermore, the bottom end of the anchor bolt 5 is threaded, and a limiting bolt 6 is provided at the threaded part of the bottom end of the anchor bolt 5. Specifically, in this embodiment, the anchor bolt 5 is connected to the frame or mounting bracket by threads, which provides a stable connection, simplifies operation, and allows adjustment of the position of the limiting bolt 6 to control the threaded connection depth of the anchor bolt 5.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A regulating device for an overflow valve, characterized in that Include: The pressure valve rod (13) penetrates from the top of the overflow valve body (1), Support seat (2), the support seat (2) is provided on the top of the overflow valve body (1), the top end of the support seat (2) is rotatably connected with the pressure rod (3), a plurality of hook grooves (31) are arranged on the pressure rod (3); Spring assembly (4), one end of the spring assembly (4) is hooked on one of the hook grooves (31), the other end of the spring assembly (4) is hooked on the anchor bolt (5).

2. A regulating device for an overflow valve according to claim 1, characterized in that: The pressure valve rod (13) is at the center of the top of the overflow valve body (1).

3. A regulating device for an overflow valve according to claim 2, characterized in that: The support seat (2) is located at the non-center of the top of the overflow valve body (1), and the support seat (2) and the top cover of the overflow valve body (1) are integrated.

4. A regulating device for an overflow valve according to claim 3, characterized in that: The top end of the support seat (2) is provided with a rotating shaft (21), and the connecting end of the pressure rod (3) is provided with a pin hole.

5. The regulator for an overflow valve of claim 1 wherein: The anchor bolt (5) is provided with a hanging ring (51), and the hook portion of the bottom end of the spring assembly (4) penetrates through the hanging ring (51).

6. A regulating device for an overflow valve according to claim 5, characterized in that: The bottom end of the anchor bolt (5) is provided with a thread, and the threaded portion of the bottom end of the anchor bolt (5) is provided with a limiting bolt (6).

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