Hydraulic hose connector capable of preventing looseness

Abstract

The utility model relates to the technical field of hydraulic hose connectors, in particular to an anti-loosening hydraulic hose connector which comprises a hydraulic connector body and an anti-loosening spring washer, the hydraulic connector body is composed of a connector main pipe and an outer hexagonal block, an equipment body is arranged on the left side of the hydraulic connector body, and a connecting pipe is arranged on the equipment body. A hose is arranged on the right side of the hydraulic connector body, a bearing sleeve is arranged on the outer wall of the hose, a bearing is arranged in the bearing sleeve, an anti-loosening sleeve is arranged in the bearing, an anti-loosening thread and an anti-skid layer are arranged on the anti-loosening sleeve, a pipe body outer thread and an anti-loosening baffle ring are arranged on the connector main pipe, and a reinforcing rib is arranged on the outer hexagonal block. And a pipe body internal thread is arranged on the joint main pipe. The situation that the sleeved hose is loosened and directly loosened and slips due to the fact that the flow of conveyed liquid is too large and the internal pressure is increased is avoided, and the structural stability between the outer hexagonal block and the connector main pipe is integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic hose joints, in particular to a hydraulic hose joint capable of preventing loosening. Background Art

[0002] Hydraulic hose connectors are key components used to connect hydraulic hoses in hydraulic systems. Among them, straight-through hydraulic hose connectors are commonly used. Straight-through hydraulic hose connectors are widely used in various hydraulic systems, such as hydraulic systems in construction machinery, agricultural machinery, aerospace, ships, and automobiles.

[0003] The specific connection of the straight-through hydraulic hose connector is generally to put the hose on the sleeve of the hydraulic connector body, and then tie it with a clamp.

[0004] At present, if the liquid flow in the hydraulic hose connector body is too large, the internal pressure of the liquid will increase, which will cause the sleeved hose to loosen and directly slip off the sleeve, affecting the normal liquid transportation use of the hydraulic hose connector.

[0005] In addition, the hexagonal open-end wrench is inserted into the external hexagonal block preset on the hydraulic connector body, and then high-torque rotation is performed to lock it. This high-torque rotation can easily cause the welding part between the external hexagonal block and the hydraulic connector body to loosen, thereby greatly reducing the structural stability between the external hexagonal block and the hydraulic connector body.

[0006] The above problems are widespread and urgently need improvement. Utility Model Content

[0007] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a hydraulic hose connector that can prevent loosening.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A hydraulic hose joint is designed to prevent loosening, including a hydraulic joint body and an anti-loosening spring washer. The hydraulic joint body is composed of a joint main pipe and an external hexagonal block. An equipment body is provided on the left side of the hydraulic joint body, and a connecting pipe is provided on the equipment body. The connecting pipe is provided with a connecting pipe thread. A hose is provided on the right side of the hydraulic joint body. A bearing sleeve is provided on the outer wall of the hose, a bearing is provided in the bearing sleeve, an anti-loosening sleeve is provided in the bearing, and an anti-loosening sleeve is provided with an anti-loosening thread and an anti-slip layer. The joint main pipe is provided with an external pipe thread and an anti-loosening retaining ring. The external hexagonal block is provided with a reinforcing rib, and the joint main pipe is provided with an internal pipe thread.

[0010] Furthermore, the joint main pipe is threadedly connected to the pipe thread through the inner thread of the pipe body, the cross-section of the anti-loosening elastic washer is a trapezoidal structure, and the left end face of the anti-loosening elastic washer is in extrusion contact with the right end face of the equipment body.

[0011] Furthermore, the joint main pipe is threadedly connected to the anti-loosening thread through the outer thread of the pipe body, and the anti-loosening retaining ring is arranged at the right end of the joint main pipe, and the right end of the anti-loosening retaining ring is in extrusion contact with the left end face of the hose.

[0012] Furthermore, the bearing sleeve is fixedly bonded to the outer wall surface of the hose, the bearing is embedded in the bearing sleeve, and the mounting hole of the bearing is fixedly sleeved with the anti-loosening sleeve.

[0013] Furthermore, the outer hexagonal block is arranged on the outer wall of the joint main pipe, and the reinforcement ribs are arranged between the outer hexagonal block and the joint main pipe. The reinforcement ribs are divided into two groups that are symmetrical on the left and right, with each group consisting of six ribs arranged in a circle. The reinforcement ribs are triangular in structure as a whole.

[0014] Furthermore, the interior of the anti-loosening sleeve is a hollow cavity and there is a gap between the anti-loosening sleeve and the outer wall of the hose.

[0015] Furthermore, the anti-slip layer is evenly coated along the outer wall surface of the anti-loosening sleeve, and the anti-slip layer is made of TPU thermoplastic polyurethane coating material.

[0016] The utility model provides a hydraulic hose connector that prevents loosening, which has the following beneficial effects:

[0017] 1. The utility model provides an anti-loosening spring washer on the hydraulic joint body, an outer tube thread and an anti-loosening retaining ring on the hydraulic joint body, and a bearing sleeve with a bearing on the hose. Then, an anti-loosening sleeve structure with an anti-loosening thread is provided in the bearing. This prevents the connected hose from loosening and directly slipping due to the increased internal pressure of the delivered liquid due to excessive flow, thereby ensuring the normal liquid delivery use of the hydraulic joint body.

[0018] 2. The utility model provides two sets of triangular reinforcement ribs arranged circumferentially between the outer hexagonal block and the joint main pipe, thereby preventing the weld between the outer hexagonal block and the joint main pipe from loosening when the hexagonal open-end wrench is used to rotate the outer hexagonal block at high torque, thereby improving the overall structural stability between the outer hexagonal block and the joint main pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded schematic diagram of the hydraulic joint body of the present invention when it is not connected and installed;

[0020] Figure 2 This is a three-dimensional schematic diagram of the hydraulic joint body of the present invention after being connected and installed;

[0021] Figure 3 For the utility model Figure 1 A three-dimensional schematic diagram of the hydraulic joint body;

[0022] Figure 4 For the utility model Figure 2 A front view cross-sectional view of the overall structure;

[0023] Figure 5 For the utility model Figure 1 A three-dimensional schematic diagram of a hose structure with an anti-loosening sleeve.

[0024] In the figure: 1 hydraulic joint body; 2 joint main pipe; 21 pipe body outer thread; 22 anti-loosening retaining ring; 23 anti-loosening spring washer; 24 pipe body inner thread; 3 external hexagonal block; 31 reinforcing rib; 4 equipment body; 5 connecting pipe; 51 pipe thread; 6 hose; 61 bearing sleeve; 62 bearing; 7 anti-loosening sleeve; 71 anti-loosening thread; 72 anti-slip layer. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-5 A hydraulic hose connector for preventing loosening includes a hydraulic connector body 1 and an anti-loosening spring washer 23. The hydraulic connector body 1 is composed of a connector main pipe 2 and an external hexagonal block 3. An equipment main body 4 is provided on the left side of the hydraulic connector body 1. A connecting pipe 5 is provided on the equipment main body 4. The connecting pipe 5 is provided with a connecting pipe thread 51. A hose 6 is provided on the right side of the hydraulic connector body 1. A bearing sleeve 61 is provided on the outer wall of the hose 6. A bearing 62 is provided in the bearing sleeve 61. An anti-loosening sleeve 7 is provided in the bearing 62. The anti-loosening sleeve 7 is provided with an anti-loosening thread 71 and an anti-slip layer 72. The connector main pipe 2 is provided with an external pipe thread 21 and an anti-loosening retaining ring 22. The external hexagonal block 3 is provided with a reinforcing rib 31. The connector main pipe 2 is provided with an internal pipe thread 24. The hydraulic connector body 1 is a commonly used hydraulic hose connector and is an existing technology.

[0027] The equipment body 4 is a commonly used equipment with a hydraulic system.

[0028] In detail, the joint main pipe 2 is threadedly connected to the pipe thread 51 through the inner thread 24 of the pipe body. The cross-section of the anti-loosening spring washer 23 is a trapezoidal structure. The left end face of the anti-loosening spring washer 23 is in extrusion contact with the right end face of the equipment main body 4. When the inner thread 24 of the pipe body and the pipe thread 51 are threadedly locked, the anti-loosening spring washer 23 will be squeezed with the right end face of the equipment main body 4. At this time, the anti-loosening spring washer 23 will generate a lateral rebound force, which acts on the inner thread 24 of the pipe body and the pipe thread 51 to achieve an anti-loosening effect. At the same time, the equipment main body 4 and the joint main pipe 2 are sealed to prevent water leakage.

[0029] The anti-loosening elastic pad 23 is made of polyurethane rubber and has high elastic sealing performance.

[0030] Furthermore, the joint main pipe 2 is threadedly connected to the anti-loosening thread 71 through the outer thread 21 of the pipe body, and the anti-loosening ring 22 is arranged at the right end of the joint main pipe 2. The right end of the anti-loosening ring 22 is squeezed and contacted with the left end face of the hose 6. The anti-loosening ring 22 itself has high elasticity. When the anti-loosening thread 71 and the outer thread 21 of the pipe body are threadedly locked, the anti-loosening ring 22 will be squeezed with the left end face of the hose 6. At this time, the anti-loosening ring 22 will generate a lateral rebound force, which acts on the anti-loosening thread 71 and the outer thread 21 of the pipe body to achieve an anti-loosening effect, and at the same time, the hose 6 and the joint main pipe 2 are sealed to prevent water leakage.

[0031] The anti-loosening retaining ring 22 is made of NBR nitrile rubber, which is corrosion-resistant, aging-resistant and durable.

[0032] Furthermore, the bearing sleeve 61 is stably fixedly bonded to the outer wall surface of the hose 6 using special glue.

[0033] The bearing 62 is embedded in the bearing sleeve 61, and the mounting hole of the bearing 62 is fixedly connected with the anti-loosening sleeve 7. When the anti-loosening sleeve 7 is rotated, the hose 6 does not rotate, thereby achieving thread locking between the anti-loosening thread 71 and the outer thread 21 of the pipe body.

[0034] The bearing 62 is a deep groove ball bearing, which has a large radial and lateral load bearing capacity, thereby improving the supporting strength for the anti-loosening sleeve 7.

[0035] In more detail, the outer hexagonal block 3 is arranged on the outer wall of the joint main pipe 2, and the reinforcement ribs 31 are arranged between the outer hexagonal block 3 and the joint main pipe 2. The reinforcement ribs 31 are divided into two groups symmetrical on the left and right, each group of six ribs arranged in a circle, and the reinforcement ribs 31 are triangular in structure as a whole. The triangular structure has strong stability, which improves the structural stability between the outer hexagonal block 3 and the joint main pipe 2 as a whole.

[0036] The reinforcement rib 31 is made of hard alloy steel, which has excellent strength, no deformation, corrosion resistance and durability.

[0037] Generally speaking, the interior of the anti-loosening sleeve 7 is a hollow cavity and there is a gap between the anti-loosening sleeve 7 and the outer wall of the hose 6 to avoid friction between the anti-loosening sleeve 7 and the outer wall of the hose 6 when rotating.

[0038] Finally, the anti-slip layer 72 is evenly coated along the outer wall of the anti-loosening sleeve 7. The anti-slip layer 72 is made of TPU thermoplastic polyurethane coating material. The TPU thermoplastic polyurethane coating material has excellent damping and anti-slip properties, which prevents the anti-loosening sleeve 7 from slipping when the fingers hold it and rotate it.

[0039] Working method: first align the inner tube thread 24 on the joint main pipe 2 of the hydraulic joint body 1 with the pipe thread 51, then use a hexagonal open-end wrench to clamp it on the external hexagonal block 3 and rotate it clockwise, driving the joint main pipe 2 to rotate clockwise, so that the inner tube thread 24 and the pipe thread 51 can be thread-locked, until the anti-loosening spring washer 23 is squeezed into contact with the outer wall of the equipment body 4, then, take the hose 6 and align it with the right end of the joint main pipe 2, and then rotate the anti-loosening sleeve 7 clockwise to thread-lock the anti-loosening thread 71 with the outer tube thread 21, until the anti-loosening retaining ring 22 is squeezed into contact with the right end face of the hose 6. This threaded connection structure can avoid the situation where the internal pressure of the transported liquid is too large and the sleeved hose 6 is loosened and directly loosened and slipped, thereby ensuring the normal liquid transportation use of the hydraulic joint body 1.

[0040] In addition, when a hexagonal open-end wrench is used to clamp the outer hexagonal block 3 and rotate it at high torque, the two sets of triangular reinforcement ribs 31 are provided to prevent the weld between the outer hexagonal block 3 and the joint main pipe 2 from loosening when the hexagonal open-end wrench is used to rotate the outer hexagonal block 3 at high torque, thereby improving the overall structural stability between the outer hexagonal block 3 and the joint main pipe 2.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic hose connector for preventing loosening, comprising a hydraulic connector body (1) and an anti-loosening spring washer (23), characterized in that: The hydraulic joint body (1) is composed of a joint main pipe (2) and an outer hexagonal block (3). The left side of the hydraulic joint body (1) is provided with an equipment body (4), the equipment main body (4) is provided with a connecting pipe (5), and the connecting pipe (5) is provided with a pipe thread (51). The right side of the hydraulic joint body (1) is provided with a hose (6), the outer wall of the hose (6) is provided with a bearing sleeve (61), the bearing sleeve (61) is provided with a bearing (62), the bearing (62) is provided with an anti-loosening sleeve (7), the anti-loosening sleeve (7) is provided with an anti-loosening thread (71) and an anti-slip layer (72), the joint main pipe (2) is provided with an outer pipe thread (21) and an anti-loosening retaining ring (22), the outer hexagonal block (3) is provided with a reinforcing rib (31), and the joint main pipe (2) is provided with an inner pipe thread (24).

2. The anti-loosening hydraulic hose connector according to claim 1, characterized in that: The joint main pipe (2) is threadedly connected to the pipe thread (51) via the internal thread (24) of the pipe body; the cross section of the anti-loosening elastic washer (23) is a trapezoidal structure; the left end face of the anti-loosening elastic washer (23) is in extrusion contact with the right end face of the equipment body (4).

3. The anti-loosening hydraulic hose connector according to claim 1, characterized in that: The joint main pipe (2) is threadedly connected to the anti-loosening thread (71) via the outer pipe body thread (21); the anti-loosening retaining ring (22) is arranged at the right end of the joint main pipe (2); the right end of the anti-loosening retaining ring (22) is in extrusion contact with the left end face of the hose (6).

4. The anti-loosening hydraulic hose connector according to claim 1, characterized in that: The bearing sleeve (61) is fixedly bonded to the outer wall surface of the hose (6), the bearing (62) is embedded in the bearing sleeve (61), and the mounting hole of the bearing (62) is fixedly sleeved with the anti-loosening sleeve (7).

5. The anti-loosening hydraulic hose connector according to claim 1, characterized in that: The outer hexagonal block (3) is arranged on the outer wall of the joint main pipe (2), and the reinforcing ribs (31) are arranged between the outer hexagonal block (3) and the joint main pipe (2). The reinforcing ribs (31) are in two groups that are bilaterally symmetrical, with each group comprising six ribs arranged circumferentially. The reinforcing ribs (31) are in a triangular structure as a whole.

6. The anti-loosening hydraulic hose connector according to claim 1, characterized in that: The interior of the anti-loosening sleeve (7) is a hollow cavity and there is a gap between the sleeve and the outer wall of the hose (6).

7. The anti-loosening hydraulic hose connector according to claim 1, characterized in that: The anti-slip layer (72) is evenly coated along the outer wall surface of the anti-loosening sleeve (7), and the anti-slip layer (72) is made of TPU thermoplastic polyurethane coating material.

Images