A convenient hydraulic cylinder nozzle

Abstract

The utility model discloses a convenient hydraulic oil cylinder oil nozzle, which relates to the technical field of oil cylinder component structure, and solves the problem that if only one circle is welded between the outer ring of the oil nozzle and the oil cylinder in the prior art, more materials and time will be consumed; if the inside and outside are welded, it cannot meet the welding requirements of oil nozzles with longer lengths or oil nozzles at different angles. It includes an upper connector and a lower connector that are connected to each other. The lower connector is welded outside the oil cylinder, and a straight-through hole is provided on the lower connector, which is coaxially arranged with the oil hole of the oil cylinder. The diameter of the lower end of the straight-through hole gradually expands downward to form an inverted groove. The bottom diameter of the inverted groove is larger than the diameter of the oil hole. A circle of welding rings is welded between the inverted groove and the oil cylinder, and another circle of welding rings is welded between the outer periphery of the lower end of the lower connector and the oil cylinder; a straight, L-shaped or V-shaped upper through hole is provided in the upper connector, and the lower end of the upper through hole is connected with the upper end of the straight-through hole. It reduces the material demand for welding, achieves the effect of reducing labor intensity, and can meet the welding requirements of oil nozzles of different types and sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder component structures, in particular to a convenient hydraulic oil cylinder nozzle. Background Art

[0002] In modern industrial production, nozzle groove welding technology is often used. The current nozzle groove full welding technology on the market cannot meet the requirements of full welding. Usually only one circle is welded between the outer ring of the nozzle and the cylinder. In order to ensure the stability of the welding structure and the sealing of the nozzle, the weld foot will be very large, consuming more materials and time; if the inside and outside are welded, it cannot meet the welding requirements of longer nozzles or nozzles at different angles. Utility Model Content

[0003] The utility model aims to provide a convenient hydraulic cylinder oil nozzle, which reduces the material demand for welding, reduces the labor intensity, and can meet the welding requirements of oil nozzles of different types and sizes.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A convenient hydraulic cylinder oil nozzle is installed at the oil hole position of the oil cylinder, comprising an upper connector and a lower connector that are connected to each other, the lower connector is welded to the outside of the oil cylinder, and is provided with a straight through hole coaxially arranged with the oil hole of the oil cylinder, the diameter of the lower end of the straight through hole gradually expands downward to form an inverted groove, the diameter of the bottom end of the inverted groove is larger than the diameter of the oil hole, a circle of welding ring is welded between the inverted groove and the oil cylinder, and another circle of welding ring is welded between the outer periphery of the lower end of the lower connector and the oil cylinder; a straight, L-shaped or V-shaped upper through hole is provided in the upper connector, and the lower end of the upper through hole is connected to the upper end of the straight through hole.

[0006] By adopting the above technical solution, welding is only performed on two sides of the lower connector, which reduces the material demand for welding and the labor intensity. The oil nozzle is divided into an upper connector and a lower connector. The lower connector is connected to the oil cylinder, and the upper connector is connected to the lower connector. Its shape and structure meet the welding requirements of oil nozzles of different types and sizes.

[0007] Furthermore, the upper connecting body is detachably connected to the lower connecting body via threads.

[0008] By adopting the above technical solution, the upper connector can be easily disassembled and replaced.

[0009] Furthermore, a first stepped hole and a second stepped hole are formed at the upper end of the lower connector. The first stepped hole and the second stepped hole are coaxially arranged with the straight hole. The first stepped hole is located below the second stepped hole, and the diameter of the second stepped hole is larger than that of the first stepped hole. The diameter of the first stepped hole is larger than that of the straight hole.

[0010] By adopting the above technical solution, the connection of the upper connector is facilitated and the sealing effect is improved.

[0011] Furthermore, the lower end of the upper connector is connected to a boss, the diameter of the lower part of the boss is smaller than the diameter of the upper part, forming a stepped surface, the lower part of the boss is adapted to the inner diameter of the first stepped hole, and the upper part is threadedly connected to the second stepped hole.

[0012] By adopting the above technical solution and corresponding to the lower connecting body, disassembly and installation are realized, thereby improving the installation efficiency.

[0013] Furthermore, the lower end of the boss abuts against the bottom end of the first stepped hole.

[0014] By adopting the above technical solution, the positioning of the boss installation position is facilitated.

[0015] Furthermore, a first sealing ring is provided between the lower end of the boss and the inner circumference of the first stepped hole, and the first sealing ring abuts against the bottom end of the first stepped hole.

[0016] By adopting the above technical solution, the sealing between the upper connector and the lower connector is improved.

[0017] Furthermore, a circular groove is formed at the bottom of the second stepped hole, and a second sealing ring is arranged in the circular groove, and the second sealing ring abuts between the circular groove and the stepped surface of the boss.

[0018] By adopting the above technical solution, the sealing between the upper connector and the lower connector is further improved.

[0019] Furthermore, a detection hole is opened in the lower connector, the outer end of the detection hole is located at the outer periphery of the lower connector, and the inner end is connected to the lower surface and / or upper surface of the lower connector.

[0020] By adopting the above technical solution, when oil leaks from the upper side or the lower side of the lower connector, the detection hole can leak oil, so that the oil leakage is discovered in advance, making it convenient to replace the first sealing ring and the second sealing ring.

[0021] Furthermore, the inner end of the detection hole is connected to the upper surface of the lower connector, and the connecting position is located outside the second stepped hole.

[0022] By adopting the above technical solution, it is convenient to detect whether there is oil leakage at the second sealing ring position.

[0023] In summary, the utility model has the following beneficial effects:

[0024] Welding is only performed on two sides of the lower connector, which reduces the material requirements for welding and the labor intensity. The oil nozzle is divided into an upper connector and a lower connector. The lower connector is connected to the oil cylinder, and the upper connector is connected to the lower connector. Its shape and structure meet the welding requirements of oil nozzles of different types and sizes.

[0025] A first step hole and a second step hole are provided at the upper end of the lower connector, and the lower end of the upper connector is connected to a corresponding boss corresponding to the lower connector to realize disassembly and installation, thereby improving installation efficiency. A first sealing ring and a second sealing ring are provided to improve the sealing between the upper connector and the lower connector, and in conjunction with a detection hole provided in the lower connector, when oil leaks from the upper or lower side of the lower connector, oil can leak out of the detection hole, thereby detecting oil leakage in advance and facilitating replacement of the first sealing ring and the second sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments.

[0027] Figure 1 This is a schematic diagram of the overall structure of a convenient hydraulic cylinder nozzle of the utility model;

[0028] Figure 2 It is a schematic diagram of the overall structure of a convenient hydraulic oil cylinder nozzle of the utility model.

[0029] In the figure, 1, lower connector; 11, straight through hole; 12, inverted groove; 13, first stepped hole; 14, second stepped hole; 2, upper connector; 21, upper through hole; 22, boss; 3, first sealing ring; 4, second sealing ring; 5, detection hole. DETAILED DESCRIPTION

[0030] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation of the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] A convenient hydraulic cylinder nozzle, such as Figure 1 As shown, the oil hole position installed in the oil cylinder includes an upper connector 2 and a lower connector 1 that are connected to each other. The lower connector 1 is welded to the outside of the oil cylinder, and is provided with a straight hole 11 coaxially arranged with the oil hole of the oil cylinder. The diameter of the lower end of the straight hole 11 gradually expands downward to form an inverted groove 12. The bottom end diameter of the inverted groove 12 is larger than the oil hole diameter. A circle of welding ring is welded between the inverted groove 12 and the oil cylinder, and another circle of welding ring is welded between the outer periphery of the lower end of the lower connector 1 and the oil cylinder, i.e., two circles inside and outside. Welding is only performed on the inner and outer two sides of the lower connector 1, which reduces the material demand for welding.

[0032] like Figure 1 As shown, a straight, L-shaped or V-shaped upper through hole 21 is provided in the upper connector 2, and the lower end of the upper through hole 21 is connected to the upper end of the straight through hole 11. In this embodiment, the upper through hole 21 is L-shaped, with the upper half horizontal and the lower half vertical; the lower connector 1 is connected to the oil cylinder, and the upper connector 2 is connected to the lower connector 1, and its shape and structure meet the welding requirements of oil nozzles of different types and sizes.

[0033] like Figure 1 As shown, the upper connector 2 is detachably connected to the lower connector 1 by means of threads or screws, and can also be fixed by welding or the like, or be threadedly connected and then welded around the periphery; specifically, a first step hole 13 and a second step hole 14 are also provided at the upper end of the lower connector 1, and the first step hole 13 and the second step hole 14 are both coaxially arranged with the through hole 11, the first step hole 13 is located below the second step hole 14, and the diameter of the second step hole 14 is larger than that of the first step hole 13, and the diameter of the first step hole 13 is larger than that of the through hole 11.

[0034] like Figure 1 and Figure 2 As shown, the lower end of the upper connector 2 is integrally connected to the boss 22, the lower end of the upper through hole 21 extends through the boss 22, the diameter of the lower part of the boss 22 is smaller than the diameter of the upper part, forming a stepped surface, the lower part of the boss 22 is adapted to the inner diameter of the first stepped hole 13, and the upper part is threadedly connected to the second stepped hole 14; the lower end of the boss 22 abuts against the bottom end of the first stepped hole 13 (the stepped surface between the straight hole 11), realizing disassembly and installation, and improving installation efficiency;

[0035] A circle of first sealing ring 3 is provided between the lower end of the boss 22 and the inner circumference of the first stepped hole 13. The first sealing ring 3 abuts against the bottom end of the first stepped hole 13 (the step surface between the through hole 11). The first sealing ring 3 is sleeved outside the lower end of the boss 22 and seals the gap between the boss 22 and the first stepped hole 13 as the boss 22 is installed.

[0036] A circular groove is provided at the bottom of the second stepped hole 14 (on the step surface between the second stepped hole 13 ), and a second sealing ring 4 is provided in the circular groove. The second sealing ring 4 abuts between the bottom of the circular groove and the step surface of the boss 22 to improve the sealing between the upper connector 2 and the lower connector 1 .

[0037] like Figure 1 and Figure 2As shown, a detection hole 5 is opened in the lower connector 1, and the detection hole 5 includes an intersecting horizontal hole and a vertical hole. The outer end of the horizontal hole is located at the outer periphery of the lower connector 1, and the inner end is connected to the vertical hole. The upper and lower ends of the vertical hole are respectively connected to the lower surface and the upper surface of the lower connector 1, and the connecting position is located at the outer side of the second step hole 14; when the upper or lower side of the lower connector 1 leaks oil, the detection hole 5 can leak oil, and the oil leakage can be discovered in advance, which is convenient for replacing the first sealing ring 3 and the second sealing ring 4 or performing repair welding, etc.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A convenient hydraulic cylinder nozzle, characterized by: The oil hole of the oil cylinder is installed at the position of the oil hole, comprising an upper connecting body (2) and a lower connecting body (1) which are connected to each other. The lower connecting body (1) is welded to the outside of the oil cylinder and is provided with a straight hole (11) coaxially arranged with the oil hole of the oil cylinder. The diameter of the lower end of the straight hole (11) gradually expands downward to form an inverted groove (12). The bottom end diameter of the inverted groove (12) is larger than the diameter of the oil hole. A welding ring is welded between the inverted groove (12) and the oil cylinder, and another welding ring is welded between the outer periphery of the lower end of the lower connecting body (1) and the oil cylinder. The upper connecting body (2) is provided with a straight, L-shaped or V-shaped upper through hole (21). The lower end of the upper through hole (21) is connected with the upper end of the straight hole (11).

2. A convenient hydraulic cylinder nozzle according to claim 1, characterized in that: The upper connecting body (2) is detachably connected to the lower connecting body (1) via threads.

3. A convenient hydraulic cylinder nozzle according to claim 1 or 2, characterized in that: The upper end of the lower connecting body (1) is also provided with a first stepped hole (13) and a second stepped hole (14); the first stepped hole (13) and the second stepped hole (14) are both coaxially arranged with the straight hole (11); the first stepped hole (13) is located below the second stepped hole (14); the diameter of the second stepped hole (14) is larger than that of the first stepped hole (13); and the diameter of the first stepped hole (13) is larger than that of the straight hole (11).

4. A convenient hydraulic cylinder nozzle according to claim 3, characterized in that: The lower end of the upper connecting body (2) is connected to a boss (22); the diameter of the lower portion of the boss (22) is smaller than the diameter of the upper portion, forming a stepped surface; the lower portion of the boss (22) is adapted to the inner diameter of the first stepped hole (13); and the upper portion is threadedly connected to the second stepped hole (14).

5. A convenient hydraulic cylinder nozzle according to claim 4, characterized in that: The lower end of the boss (22) abuts against the bottom end of the first stepped hole (13).

6. A convenient hydraulic cylinder nozzle according to claim 4, characterized in that: A first sealing ring (3) is provided between the lower end of the boss (22) and the inner periphery of the first stepped hole (13), and the first sealing ring (3) abuts against the bottom end of the first stepped hole (13).

7. A convenient hydraulic cylinder nozzle according to claim 4, characterized in that: A circular groove is formed at the bottom of the second stepped hole (14), and a second sealing ring (4) is arranged in the circular groove. The second sealing ring (4) abuts between the circular groove and the stepped surface of the boss (22).

8. A convenient hydraulic cylinder nozzle according to claim 7, characterized in that: The lower connecting body (1) is provided with a detection hole (5), the outer end of the detection hole (5) is located at the outer periphery of the lower connecting body (1), and the inner end is connected to the lower surface and / or upper surface of the lower connecting body (1).

9. A convenient hydraulic cylinder nozzle according to claim 8, characterized in that: The inner end of the detection hole (5) is connected to the upper surface of the lower connecting body, and the connecting position is located outside the second stepped hole (14).

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