Slide valve rod for multi-way valve

Abstract

The utility model relates to the technical field of multi-way valves, and provides a slide valve rod for a multi-way valve, which comprises two middle rods, and a first connecting rod for connection is arranged between the two middle rods; according to the sliding valve rod for the multi-way valve, inserting rods at the two ends of a first connecting rod and a second connecting rod are inserted into a middle rod, a front rod and a tail rod correspondingly, and driving assemblies on the first connecting rod and the second connecting rod rotate driving rods in the first connecting rod and the second connecting rod, so that the driving rods can drive pushing rods to be pushed into the inserting rods; therefore, the connecting assembly in the inserting rod can be driven by the pushing rod to slide outwards into the inserting groove, then the front rod is connected with the second connecting rod, the other end of the second connecting rod is connected with the middle rod, the middle rod is connected with the other middle rod through the first connecting rod, and the other middle rod is connected with the tail rod through the second connecting rod to form a whole. The problem that different positions of the slide valve rod cannot be replaced and assembled according to specific use conditions is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-way valves, and in particular to a sliding valve rod for a multi-way valve. Background Art

[0002] As a core component of the hydraulic system of construction machinery, the performance of the multi-way valve has a decisive impact on the control performance and reliability of the entire machine. By changing the relative position of the spool and valve seat in the multi-way valve, the inlet and outlet ports are opened and closed, thereby controlling the direction and flow of the oil.

[0003] A Chinese patent, publication number CN201810818U, discloses a sliding valve stem for a multi-way valve. The patent states, "It comprises a cylindrical stem body, the middle portion of which comprises, from one side to the other, a central left sealing shoulder, a central left oil groove, a central sealing shoulder, a central right oil groove, and a central right sealing shoulder. A central left oil return groove communicating with the central left oil groove is formed on the side of the central left sealing shoulder; and a central right oil return groove communicating with the central right oil groove is formed on the side of the central right sealing shoulder." The sliding valve stem for a multi-way valve has central left and right oil return grooves of various shapes for controlling oil pressure and flow stability. Because the sliding valve stem is formed from multiple sections of varying thickness, unlike conventional sliding valve stems that appear as a single unit, the shapes vary depending on the operating position of the multi-way valve. This reduces the applicability of the integrated sliding valve stem and prevents replacement and assembly of the sliding valve stem to accommodate different positions and shapes according to specific usage. Utility Model Content

[0004] The purpose of the utility model is to provide a sliding valve rod for a multi-way valve, which solves the problem in the related art that the sliding valve rod cannot be replaced and assembled accordingly in different positions and shapes according to specific usage conditions.

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

[0006] A sliding valve rod for a multi-way valve comprises two middle rods, a first connecting rod for connection is provided between the two middle rods, a second connecting rod for connection is provided at the other end of the middle rod, the other end of the second connecting rod is respectively connected to a front rod and an end rod for installation, an insertion rod for connection and insertion is provided at both ends of the first connecting rod and the second connecting rod, the inner side wall of the insertion rod is slidingly connected with a connecting assembly, the inner walls at both ends of the first connecting rod and the second connecting rod are rotatably connected with a driving rod, the outer side of the driving rod is threadedly connected with a pushing rod for pushing the connecting assembly, and the inner walls at both ends of the first connecting rod and the second connecting rod are provided with a driving assembly for driving the rod to rotate.

[0007] Preferably, the connecting assembly includes a plurality of connecting plates slidably connected to the inner walls on both sides of the insertion rod, and a movable plate is fixedly mounted on one end of the plurality of connecting plates.

[0008] Preferably, the connecting assembly further comprises sliding blocks fixedly mounted at both ends of the movable plate, and the outer sides of the sliding blocks are slidably connected to the inner side walls of the insertion rods.

[0009] Preferably, the connecting assembly further comprises a return spring fixedly mounted on one end of the sliding block, and the other end of the return spring is fixedly connected to the inner side wall of the insertion rod.

[0010] Preferably, the driving assembly includes a driven gear fixedly mounted at one end of the driving rod, and the inner walls at both ends of the first connecting rod and the second connecting rod are rotatably connected to a plurality of driving gears, and the plurality of driving gears are meshed with the driven gears.

[0011] Preferably, the driving assembly further comprises an operating gear ring rotatably connected at both ends of the first connecting rod and the second connecting rod, and the operating gear ring is engaged with the driving gear.

[0012] Preferably, the driving assembly also includes two positioning seats slidably connected to the top of the operating gear ring, one end of the two positioning seats is fixedly installed with a positioning rod, the other end of the positioning rod is fixedly installed with a limiting spring, the other end of the limiting spring is fixedly connected to the inner side wall of the positioning seat, and the inner side walls of the first connecting rod and the second connecting rod are movably connected to the outer side of the positioning rod.

[0013] Preferably, both ends of the middle rod, the other end of the front rod and one end of the end rod are provided with insertion grooves, and the outer side of the connecting plate is movably connected to the inner side wall of the insertion groove.

[0014] Beneficial effects of the utility model:

[0015] The insertion rods at both ends of the first connecting rod and the second connecting rod are respectively inserted into the middle rod, front rod and end rod, and the driving assembly on the first connecting rod and the second connecting rod rotates the internal driving rod, so that the driving rod can drive the push rod to push into the insertion rod, so that the connecting assembly inside the insertion rod can be driven by the push rod to slide outward into the insertion groove, and then the front rod can be connected to the second connecting rod, and the other end of the second connecting rod is connected to the middle rod, and the middle rod is connected to the other middle rod through the first connecting rod, and the other middle rod is connected to the end rod through the second connecting rod to form a whole, which solves the problem that the different positions of the sliding valve rod cannot be replaced and assembled according to specific usage conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the middle rod of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the first connecting rod of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the insertion rod of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the positioning seat of the utility model;

[0022] In the figure: 1. Middle rod; 2. First connecting rod; 3. Second connecting rod; 4. Front rod; 5. End rod; 6. Insert rod; 61. Drive rod; 62. Push rod; 7. Connecting assembly; 71. Connecting plate; 72. Moving plate; 73. Sliding block; 74. Return spring; 8. Driving assembly; 81. Driven gear; 82. Driving gear; 83. Operating gear ring; 84. Positioning seat; 85. Positioning rod; 86. Limiting spring; 9. Insertion slot. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 2, this embodiment proposes a sliding valve rod for a multi-way valve, including two middle rods 1, a first connecting rod 2 for connection is provided between the two middle rods 1, the other end of the middle rod 1 is provided with a second connecting rod 3 for connection, the other end of the second connecting rod 3 is respectively connected to a front rod 4 and an end rod 5 for installation, both ends of the first connecting rod 2 and the second connecting rod 3 are provided with an insertion rod 6 for connection and insertion, the inner side wall of the insertion rod 6 is slidably connected with a connecting component 7, the inner walls of both ends of the first connecting rod 2 and the second connecting rod 3 are rotatably connected with a driving rod 61, the outer side of the driving rod 61 is threadedly connected with a pushing rod 62 for pushing the connecting component 7, the inner walls of both ends of the first connecting rod 2 and the second connecting rod 3 are provided with A driving assembly 8 is provided for rotating the driving rod 61. When the sliding valve rod is used, the middle rod 1, the front rod 4 and the end rod 5 are matched according to the required types. Then, the two ends of the first connecting rod 2 are inserted into the middle rod 1, the two ends of the second connecting rod 3 are inserted into the middle rod 1 and the front rod 4, and the other second connecting rod 3 is inserted into the middle rod 1 and the end rod 5. The driving assembly 8 on the first connecting rod 2 and the second connecting rod 3 is driven to rotate the driving rod 61 so that the driving rod 61 can slide into the inside of the insertion rod 6, thereby pushing the connecting assembly 7 inside the insertion rod 6 outward and inserting it into the inside of the middle rod 1, the front rod 4 and the end rod 5, thereby completing the overall sliding valve rod, thereby improving the applicability of the overall sliding valve rod.

[0025] See also Figure 1 、、 Figure 3 、 Figure 4 as well as Figure 5, this embodiment proposes a sliding valve rod for a multi-way valve, the connecting assembly 7 includes a plurality of connecting plates 71 slidably connected to the inner walls on both sides of the insertion rod 6, one end of the plurality of connecting plates 71 is fixedly installed with a movable plate 72, the connecting assembly 7 also includes sliding blocks 73 fixedly installed at both ends of the movable plate 72, the outer side of the sliding block 73 is slidably connected to the inner side wall of the insertion rod 6, the connecting assembly 7 also includes a return spring 74 fixedly installed at one end of the sliding block 73, the other end of the return spring 74 is fixedly connected to the inner side wall of the insertion rod 6, both ends of the middle rod 1, the other end of the front rod 4 and one end of the end rod 5 are provided with an insertion groove 9, the outer side of the connecting plate 71 is movably connected to the inner side wall of the insertion groove 9, When the lever 1, front lever 4 and end lever 5 are in the process of being pushed, the push rod 62 can be pushed toward the inside of the insertion lever 6, pushing the two movable plates 72 to the sides, thereby driving the connecting plates 71 to slide outward through the movable plates 72, and at the same time, the sliding block 73 slides inside the insertion lever 6, slides into the insertion groove 9 through the connecting plate 71, and connects and fixes the insertion lever 6 to the middle lever 1, front lever 4 and end lever 5 respectively. After the push rod 62 slides out from the insertion lever 6, the connecting plate 71 can slide to the initial position by the action of the return spring 74, making it easier to slide the insertion lever 6 out of the insertion groove 9, and disassemble and replace the entire sliding valve rod. The driving assembly 8 includes a driven gear 81 fixedly installed at one end of the driving lever 61. The inner walls at both ends of a connecting rod 2 and a second connecting rod 3 are rotatably connected with a plurality of driving gears 82, and the plurality of driving gears 82 are meshed with the driven gear 81. The driving assembly 8 also includes an operating gear ring 83 rotatably connected at both ends of the first connecting rod 2 and the second connecting rod 3, and the operating gear ring 83 is meshed with the driving gear 82. The driving assembly 8 also includes two positioning seats 84 slidably connected to the top of the operating gear ring 83, and one end of the two positioning seats 84 is fixedly installed with a positioning rod 85, and the other end of the positioning rod 85 is fixedly installed with a limiting spring 86, and the other end of the limiting spring 86 is fixedly connected to the inner side wall of the positioning seat 84. The inner side walls of the first connecting rod 2 and the second connecting rod 3 are movably connected to the outer side of the positioning rod 85, and when needed When the driving rod 61 is to be driven, the operating gear ring 83 can be operated to rotate on the first connecting rod 2 and the second connecting rod 3, so that the operating gear ring 83 drives the driving gear 82 to rotate in the original position of the gap between the first connecting rod 2 and the second connecting rod 3, and then drives the driven gear 81 to rotate through the driving gear 82, so that the driving rod 61 can be driven to rotate through the driven gear 81. After the driving rod 61 drives the push rod 62 to the inside of the insertion rod 6, the limiting spring 86 can be used between the positioning rod 85 and the positioning seat 84 to make the positioning seat 84 slide toward the outside of the operating gear ring 83 and insert into the first connecting rod 2 and the second connecting rod 3, thereby fixing the operating gear ring 83 to prevent rotation.

[0026] In this embodiment, when in use, first, the insertion rods 6 at both ends of the first connecting rod 2 and the second connecting rod 3 are respectively inserted into the middle rod 1, the front rod 4 and the end rod 5, and the operating tooth rings 83 on the first connecting rod 2 and the second connecting rod 3 rotate the internal driving rod 61, so that the driving rod 61 can drive the push rod 62 to push into the insertion rod 6, so that the connecting plate 71 inside the insertion rod 6 can be driven by the push rod 62 to slide outward to the inside of the insertion groove 9, and then the front rod 4 can be connected to the second connecting rod 3, and the other end of the second connecting rod 3 is connected to the middle rod 1, the middle rod 1 is connected to another middle rod 1 through the first connecting rod 2, and the other middle rod 1 is connected to the end rod 5 through the second connecting rod 3 to form a whole, which solves the problem that the different positions of the sliding valve rod cannot be replaced and assembled according to specific usage.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sliding valve rod for a multi-way valve, comprising two middle rods (1), characterized in that: A first connecting rod (2) for connection is provided between the two middle rods (1), a second connecting rod (3) for connection is provided at the other end of the middle rod (1), the other end of the second connecting rod (3) is respectively connected to a front rod (4) and an end rod (5) for installation, an insertion rod (6) for connection and insertion is provided at both ends of the first connecting rod (2) and the second connecting rod (3), an inner side wall of the insertion rod (6) is slidably connected to a connecting assembly (7), a driving rod (61) is rotatably connected to the inner walls of both ends of the first connecting rod (2) and the second connecting rod (3), a pushing rod (62) for pushing the connecting assembly (7) is threadedly connected to the outer side of the driving rod (61), and a driving assembly (8) for rotating the driving rod (61) is provided on the inner walls of both ends of the first connecting rod (2) and the second connecting rod (3).

2. A sliding valve rod for a multi-way valve according to claim 1, characterized in that: The connecting assembly (7) comprises a plurality of connecting plates (71) slidably connected to the inner walls on both sides of the insertion rod (6), and a movable plate (72) is fixedly mounted on one end of the plurality of connecting plates (71).

3. A sliding valve rod for a multi-way valve according to claim 2, characterized in that: The connecting assembly (7) further comprises sliding blocks (73) fixedly mounted at both ends of the movable plate (72), wherein the outer side of the sliding block (73) is slidably connected to the inner side wall of the insertion rod (6).

4. A sliding valve rod for a multi-way valve according to claim 3, characterized in that: The connecting assembly (7) further comprises a return spring (74) fixedly mounted on one end of the sliding block (73), and the other end of the return spring (74) is fixedly connected to the inner side wall of the insertion rod (6).

5. The sliding valve rod for a multi-way valve according to claim 1, characterized in that: The driving assembly (8) includes a driven gear (81) fixedly mounted on one end of the driving rod (61), and a plurality of driving gears (82) are rotatably connected to the inner walls of both ends of the first connecting rod (2) and the second connecting rod (3), and the plurality of driving gears (82) are meshed with the driven gears (81).

6. A sliding valve rod for a multi-way valve according to claim 5, characterized in that: The driving assembly (8) further comprises an operating gear ring (83) rotatably connected at both ends of the first connecting rod (2) and the second connecting rod (3), and the operating gear ring (83) is meshed with the driving gear (82).

7. A sliding valve rod for a multi-way valve according to claim 6, characterized in that: The driving assembly (8) further comprises two positioning seats (84) slidably connected to the top of the operating gear ring (83), one end of the two positioning seats (84) is fixedly mounted with a positioning rod (85), the other end of the positioning rod (85) is fixedly mounted with a limiting spring (86), the other end of the limiting spring (86) is fixedly connected to the inner side wall of the positioning seat (84), and the inner side walls of the first connecting rod (2) and the second connecting rod (3) are movably connected to the outer side of the positioning rod (85).

8. The sliding valve rod for a multi-way valve according to claim 2, characterized in that: Insertion slots (9) are provided at both ends of the middle rod (1), the other end of the front rod (4), and one end of the end rod (5), and the outer side of the connecting plate (71) is movably connected to the inner side wall of the insertion slot (9).

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