Four-way reversing valve guide frame

Abstract

The utility model relates to a guide frame of a four-way reversing valve, which comprises a reinforcing piece, a left reinforcing plate and a right reinforcing plate are in split fitting design, the left reinforcing plate is fitted to the inner side of a left bent plate, and the right reinforcing plate is fitted to the outer side of a right bent plate, so that an inner and outer clamping effect is formed, and the flexural rigidity of a connecting part is greatly enhanced; meanwhile, the connecting and fixing part is inserted into the bending notch and is integrally connected with the reinforcing plates on the two sides, so that a stress transmission path is optimized, local stress concentration is avoided, and the overall anti-fatigue performance is improved; the reinforcing piece and the bending notch are matched in an inserted mode to further restrain deformation of the connecting part, the structural rigidity is enhanced, and vibration noise is reduced; the outer side wall face of the left bending plate is flush with the outer side wall face of the right reinforcing plate, it is guaranteed that the contact face of the left bending plate and the piston assembly is flat, assembling gaps are reduced, movement deviation is avoided, and guiding precision is improved. And by reinforcing and dispersing the load, the cracking risk of a bending area is remarkably reduced, the service life of the guide frame is prolonged, and the shutdown maintenance cost caused by failure of parts is reduced.

Description

Technical Field

[0001] This utility model relates to the field of directional valve technology, and in particular to a four-way directional valve guide frame. Background Technology

[0002] Four-way directional valves are key components in refrigeration, air conditioning, and hydraulic systems, functioning to switch system modes by changing the direction of fluid flow. The guide bracket, as one of the core components of the four-way directional valve, plays a crucial role in connecting the piston assembly, transmitting motion, and bearing alternating loads. Traditional guide brackets often employ simple plate structures or single-bend designs, meaning the traditional connection is fixed only by a single-sided bending plate. Under long-term, high-frequency operation, stress concentration can easily lead to deformation or breakage in the bending area, affecting valve sealing and service life.

[0003] Therefore, there is an urgent need for a guide frame structure that combines high strength, high stability and long service life to meet the reliability requirements under complex working conditions. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes a four-way reversing valve guide frame.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A four-way directional valve guide frame includes a plate-shaped frame. Connecting portions for connecting a four-way directional valve piston assembly are provided at both ends of the frame. Each connecting portion includes an upwardly bent left plate and a downwardly bent right plate. A bending notch is provided between the left and right bent plates. The frame also includes a reinforcing member, which comprises a left reinforcing plate, a connecting fixing portion, and a right reinforcing plate connected in sequence. The left reinforcing plate is fitted to the inner side of the left bent plate, and the right reinforcing plate is fitted to the outer side of the right bent plate. The connecting fixing portion is inserted into the bending notch, and the outer wall surface of the left bent plate is flush with the outer wall surface of the right reinforcing plate.

[0007] In some embodiments, the left reinforcing plate, the connecting fixing part, and the right reinforcing plate are integrally formed.

[0008] In some embodiments, the left bending plate and the left reinforcing plate are each provided with a first connecting hole, and the right bending plate and the right reinforcing plate are each provided with a second connecting hole.

[0009] In some embodiments, both the first connecting hole and the second connecting hole are provided with internal threads.

[0010] In some embodiments, a slider groove and two flow channel holes are provided on the frame.

[0011] In some embodiments, upwardly bent folded edge plates are provided on both sides of the frame.

[0012] In some embodiments, a pressure plate is provided on the folded edge plate and on one side of the slider groove, and the upper end of the pressure plate extends obliquely inward.

[0013] In some embodiments, the compression plate is formed by opening two slots at intervals on the folded edge plate.

[0014] In some embodiments, the connecting portion and the reinforcing member are fixed by welding.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The reinforcing member adopts a split-fit design with left and right reinforcing plates. The left reinforcing plate is fitted to the inside of the left bending plate, and the right reinforcing plate is fitted to the outside of the right bending plate, forming an "inner and outer clamping" effect, which greatly enhances the bending stiffness of the connection.

[0017] 2. At the same time, the fixing part is inserted into the bent notch and integrated with the reinforcing plates on both sides, which optimizes the stress transmission path, avoids local stress concentration, and improves the overall fatigue resistance.

[0018] 3. The interlocking fit between the reinforcing member and the bent notch further constrains the deformation of the connection, enhances the structural rigidity, and reduces vibration and noise;

[0019] 4. The outer wall of the left bending plate is flush with the outer wall of the right reinforcing plate to ensure a flat contact surface with the piston assembly, reduce assembly clearance, avoid movement deviation, and improve guiding accuracy.

[0020] 5. By strengthening the distribution of loads, the risk of cracking in the bending area is significantly reduced, the service life of the guide frame is extended, and the downtime maintenance costs caused by component failure are reduced. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of the reinforcing component of this utility model after installation;

[0023] Figure 2 This is a top view of the reinforcing component after installation.

[0024] Figure 3This is a three-dimensional schematic diagram of the reinforcing component of this utility model after disassembly. Detailed Implementation

[0025] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0026] like Figures 1-3 The diagram shows a four-way directional valve guide frame, comprising a plate-shaped frame 1. Connecting portions 2 for connecting the four-way directional valve piston assembly are provided at both ends of the frame 1. Each connecting portion 2 includes an upwardly bent left bending plate 3 and a downwardly bent right bending plate 4. A bending notch 5 is provided between the left bending plate 3 and the right bending plate 4, facilitating bending operations on the left and right bending plates 3 and 4. The diagram also includes a reinforcing member 6, comprising a left reinforcing plate 7, a connecting fixing part 8, and a right reinforcing plate 9 connected sequentially. The left reinforcing plate 7 is fitted to the inner side of the left bending plate 3, and the right reinforcing plate 9 is fitted to the outer side of the right bending plate 4. The connecting fixing part 8 is inserted into the bending notch 5, and the outer wall surface of the left bending plate 3 is flush with the outer wall surface of the right reinforcing plate 9.

[0027] According to the above structure, the reinforcing member 6 adopts a split bonding design of left and right reinforcing plates. The left reinforcing plate 7 is bonded to the inner side of the left bending plate 3, and the right reinforcing plate 9 is bonded to the outer side of the right bending plate 4, forming an "inner and outer clamping" effect, which greatly enhances the bending stiffness of the connecting part 2.

[0028] Meanwhile, the fixing part 8 is inserted into the bent notch 5 and integrated with the reinforcing plates on both sides, which optimizes the stress transmission path, avoids local stress concentration, and improves the overall fatigue resistance.

[0029] The insertion and mating of the reinforcing member 6 and the bent notch 8 further constrains the deformation of the connection part, enhances the structural rigidity, and reduces vibration and noise.

[0030] The outer wall of the left bending plate 3 is flush with the outer wall of the right reinforcing plate 9 to ensure a flat contact surface with the piston assembly, reduce assembly gaps, avoid movement deviation, and improve guiding accuracy.

[0031] By strengthening the distribution of loads, the risk of cracking in the bending area is significantly reduced, the service life of the guide frame is extended, and downtime maintenance costs due to component failure are reduced.

[0032] Preferably, the left reinforcing plate 7, the connecting fixing part 8, and the right reinforcing plate 9 are integrally formed, thereby improving the strength of the reinforcing member 6 and simplifying the processing steps.

[0033] In this utility model, the left bending plate 3 and the left reinforcing plate 7 are each provided with a first connecting hole 31, and the right bending plate 4 and the right reinforcing plate 9 are each provided with a second connecting hole 32.

[0034] Furthermore, both the first connecting hole 31 and the second connecting hole 32 are provided with internal threads, which are used to connect to the piston assembly by screws engaging with the internal threads.

[0035] In addition, the connecting part 2 and the reinforcing member 6 can be fixed by welding.

[0036] In this utility model, a slider groove 51 and two flow channel holes 52 are provided on the frame 1. The flow channel holes 52 are used for fluid to pass through, and the slider groove 51 is used to support the slider assembly and guide the movement direction of the slider.

[0037] In this utility model, upwardly bent folded edge plates 61 are provided on both sides of the frame 1.

[0038] Furthermore, a pressure plate 71 is provided on the folded edge plate 61 and on one side of the slider groove 51, and the upper end of the pressure plate 71 extends inclined inward. When the slider assembly (not shown in the figure) is placed in the slider groove 51, the slider assembly can be clamped inward by the pressure plate 71, thereby improving the stability of the slider assembly after installation.

[0039] Furthermore, the pressing plate 71 is formed by opening two slots 81 at intervals on the folded edge plate 61.

[0040] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A four-way directional valve guide frame, comprising a plate-shaped frame (1), wherein connecting portions (2) for connecting a four-way directional valve piston assembly are provided at both ends of the frame (1), characterized in that: The connecting part (2) includes an upwardly bent left bending plate (3) and a downwardly bent right bending plate (4). A bending notch (5) is provided between the left bending plate (3) and the right bending plate (4). It also includes a reinforcing member (6). The reinforcing member (6) includes a left reinforcing plate (7), a connecting fixing part (8), and a right reinforcing plate (9) connected in sequence. The left reinforcing plate (7) is attached to the inner side of the left bending plate (3), and the right reinforcing plate (9) is attached to the outer side of the right bending plate (4). The connecting fixing part (8) is inserted into the bending notch (5), and the outer wall surface of the left bending plate (3) is flush with the outer wall surface of the right reinforcing plate (9).

2. The four-way directional valve guide bracket according to claim 1, characterized in that: The left reinforcing plate (7), the connecting fixing part (8), and the right reinforcing plate (9) are integrally formed.

3. The four-way directional valve guide bracket according to claim 2, characterized in that: The left bending plate (3) and the left reinforcing plate (7) are each provided with a first connecting hole (31), and the right bending plate (4) and the right reinforcing plate (9) are each provided with a second connecting hole (32).

4. A four-way directional valve guide bracket according to claim 3, characterized in that: Both the first connecting hole (31) and the second connecting hole (32) are provided with internal threads.

5. A four-way directional valve guide bracket according to claim 1, characterized in that: A slider groove (51) and two flow channel holes (52) are provided on the frame (1).

6. A four-way directional valve guide bracket according to claim 5, characterized in that: Upwardly bent edge plates (61) are provided on both sides of the frame (1).

7. A four-way directional valve guide bracket according to claim 6, characterized in that: A pressure plate (71) is provided on the folded edge plate (61) and on one side of the slider groove (51), and the upper end of the pressure plate (71) extends inward at an inclination.

8. A four-way directional valve guide bracket according to claim 7, characterized in that: The compression plate (71) is formed by opening two slots (81) at intervals on the folded edge plate (61).

9. A four-way directional valve guide bracket according to claim 1, characterized in that: The connecting part (2) and the reinforcing member (6) are fixed by welding.

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