Anti-falling and anti-leakage low-pressure rubber hose connector capable of alarming

Abstract

The utility model belongs to the technical field of pipe joints, and particularly relates to an anti-falling and anti-leakage low-pressure rubber pipe joint capable of giving an alarm. The pressure sensor is characterized in that a flange is arranged on the outer surface between a connecting thread and a convex tooth part of a core body, a cavity is formed in the flange, and a pressure detector communicated with the cavity is arranged on the flange; the sleeve further comprises a rubber pipe top plate, and the rubber pipe top plate is arranged at the end of the sleeve and makes contact with the surface of the flange. The flange is provided with a communicating gap corresponding to the matching position of the rubber pipe top plate and the core body. According to the utility model, not only can the sealing requirement be met, but also the hose can be effectively prevented from slipping. Compared with a clamp type connector, a clamping type connector and the like, the connector is simpler in process, and the cost can be effectively controlled. In addition, inner glue and outer glue do not need to be stripped, the working efficiency is improved, and waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe joints, and particularly relates to a low-pressure rubber hose joint with anti-disconnection, anti-leakage and alarm functions. Background Art

[0002] At present, there are a series of problems with the crimped joints and clamp-type joints widely used on the market in terms of sealing, anti-disconnection and alarm: 1. Sealing problem: When improving the pulling force of the existing crimped joints and clamp-type joints, the sealing performance is often difficult to guarantee. For example, in Patent CN 202111038049.2, although the pulling force is improved through the cooperation of concave and convex structures, its sealing performance is poor. Especially when the hose is crimped, the head is easy to tilt, resulting in insecure crimping of the joint and liquid leakage, and it cannot achieve an ideal sealing effect.

[0003] 2. Anti-disconnection problem: The structural design of the existing joints is complex, the process requirements are high, and the cost is relatively high. Although the pointed tooth structure in Patent CN202122600517.2 improves the cooperation force between the joint and the hose, the large-sized pointed teeth may damage the hose structure, and the hose cannot completely fill the concave part of the joint during crimping, resulting in insecure crimping and easy slippage. In addition, the production processes of clamp-type joints and clamping-type joints are complex, resulting in low production efficiency and high costs.

[0004] 3. Alarm problem: The current joint design is not easy to detect when liquid leaks, lacks an effective alarm mechanism, and cannot respond in time when liquid leaks, posing a safety hazard to use.

[0005] In summary, the existing technologies have significant deficiencies in terms of sealing, anti-disconnection and alarm. There is an urgent need for an improved joint structure that can effectively solve the problems of poor sealing performance, complex structure and easy disconnection, and difficult liquid leakage alarm, so as to improve the use performance and safety of the joint. Summary of the Invention

[0006] The utility model aims at the above problems and provides a low-pressure rubber hose joint with anti-disconnection, good sealing performance and leakage protection function.

[0007] To achieve the above object of the utility model, the utility model adopts the following technical solutions. The utility model includes a core body and a sleeve. One end of the core body is provided with a connecting thread, and the other end of the core body is provided with a convex tooth portion; the sleeve is arranged outside the core body, and a concave tooth portion cooperating with the convex tooth portion is arranged inside the sleeve. It is characterized in that: a flange is arranged on the outer surface between the connecting thread and the convex tooth portion of the core body, a cavity is arranged inside the flange, and a pressure detector communicating with the cavity is arranged on the flange; the sleeve further includes a rubber hose top plate, the rubber hose top plate is arranged at the end of the sleeve, and the rubber hose top plate is in contact with the surface of the flange; a communicating gap corresponding to the cooperation part of the rubber hose top plate and the core body is arranged on the flange.

[0008] As a preferred embodiment of the present utility model, a sealing groove is provided on the flange surface relative to the rubber hose top plate, and a square sealing ring is arranged in the sealing groove.

[0009] Furthermore, a boss is arranged on one side of the flange, the boss contacts with the rubber hose top plate, and the sealing groove is arranged on the surface of the boss.

[0010] As another preferred embodiment of the present utility model, a clamping neck portion composed of a plurality of ratchet tooth structures is arranged between the concave tooth portion and the rubber hose top plate inside the sleeve.

[0011] Furthermore, a sealing groove is arranged between the clamping neck portion and the rubber hose top plate inside the sleeve, and an O-shaped sealing ring is arranged in the sealing groove; a pressing ring corresponding to the sealing groove is arranged on the core body.

[0012] Furthermore, a first concave tooth is arranged between the clamping neck portion and the concave tooth portion inside the sleeve, the width and depth of the first concave tooth are both larger than those of other concave teeth of the concave tooth portion; a first convex tooth matched with the first concave tooth is arranged at the end of the convex tooth portion of the core body.

[0013] As the fourth preferred embodiment of the present utility model, the cavity inside the flange is an annular cavity, the communication gap is arranged on the flange surface, and the communication gap corresponds to the matching position of the rubber hose top plate and the outer surface of the core body.

[0014] As the fifth preferred embodiment of the present utility model, the pressure detector is connected with an alarm device.

[0015] The beneficial effects of the present utility model are as follows: 1. Through the corresponding convex tooth portion and concave tooth portion structures of the core body and the sleeve, the present utility model enhances the pulling force between the joint and the hose, making the connection more firm. The first convex tooth and first concave tooth structures with larger sizes are arranged, which can further enhance the pulling force between the joint and the hose. The connection is firm, and when the hose is squeezed, the deformation and elongation of the hose itself will make it contact the concave-convex structure more closely, effectively preventing hose leakage and pulling-off.

[0016] 2. The ratchet-shaped clamping neck portion designed at the sealing ring of the present utility model can not only effectively prevent the problem that the head of the hose is warped due to extrusion during crimping, resulting in an increase in the hose slippage rate, but also enhance the pulling force, further enhancing the connection firmness between the hose and the joint, and effectively preventing the hose from slipping off.

[0017] 3. The present utility model adds an O-shaped sealing ring, which can improve the sealing performance of the hose.

[0018] 4. By adding an alarm device, the present utility model can timely detect oil leakage, and timely close the valve to prevent economic losses.

[0019] In summary, by adopting the crimp type pipe joint of the present utility model, not only can the sealing requirement be met, but also the hose can be more effectively prevented from slipping off. Compared with the clamp type and clamping type joints, etc., the joint process of the present utility model is simpler, and the cost can be effectively controlled. In addition, the present utility model does not require stripping the inner rubber and outer rubber, which improves the work efficiency and reduces the generation of waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of the present utility model.

[0021] Figure 2 is an external view of the present utility model.

[0022] Figure 3 is Figure 1 a partially enlarged view of

[0023] Figure 4 is a schematic structural view of the sleeve.

[0024] Figure 5 is a schematic structural view of the core body.

[0025] In the drawings, 1 is the sleeve, 2 is the core body, 3 is the concave tooth part, 4 is the convex tooth part, 5 is the first concave tooth, 6 is the first convex tooth, 7 is the pressure detector, 8 is the clamping neck, 9 is the flange, 10 is the connecting thread, 11 is the O-ring seal, 12 is the pressing ring, 13 is the communicating gap, 14 is the cavity, 15 is the hose top plate, 16 is the square sealing ring, and 17 is the convex platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model includes a core body 2 and a sleeve 1. A connecting thread 10 is provided at one end of the core body 2, and a convex tooth part 4 is provided at the other end of the core body 2. The sleeve 1 is arranged outside the core body 2, and a concave tooth part 3 cooperating with the convex tooth part 4 is arranged inside the sleeve 1. It is characterized in that: a flange 9 is provided on the outer surface between the connecting thread 10 and the convex tooth part 4 of the core body 2, a cavity 14 is provided inside the flange 9, and a pressure detector 7 communicating with the cavity 14 is provided on the flange 9. The sleeve 1 further includes a hose top plate 15, the hose top plate 15 is arranged at the end of the sleeve 1, and the hose top plate 15 is in contact with the surface of the flange 9. A communicating gap 13 corresponding to the joint of the hose top plate 15 and the core body 2 is provided on the flange 9.

[0027] A sealing groove is provided on the surface of the flange 9 relative to the hose top plate 15, and a square sealing ring 16 is arranged in the sealing groove.

[0028] The square sealing ring 16 can prevent the medium leaking from one side of the hose from entering the air and polluting the environment, and adds an additional layer of anti-leakage protection.

[0029] One side of the flange 9 is provided with a boss, the boss contacts with the hose top plate 15, and the sealing groove is arranged on the surface of the boss.

[0030] By contacting the boss with the hose top plate 15, it is beneficial to process the surface of the boss. After ensuring the contact between the boss and the hose top plate 15, good sealing performance can be achieved, so as to ensure the normal operation of the pressure detector 7.

[0031] A clamping neck part 8 composed of a number of ratchet structures is arranged between the concave tooth part 3 and the hose top plate 15 inside the sleeve 1.

[0032] The clamping neck part 8 can not only effectively prevent the problem that the head of the hose is warped due to extrusion during crimping, resulting in an increase in the hose slippage rate, but also enhance the pulling force, further enhancing the connection firmness between the hose and the joint and effectively preventing the hose from slipping off.

[0033] A sealing groove is arranged between the clamping neck part 8 and the hose top plate 15 inside the sleeve 1, and an O-ring 11 is arranged in the sealing groove; a pressing ring 12 corresponding to the sealing groove is arranged on the core body 2.

[0034] Adding a sealing structure between the sleeve 1 and the hose, and using the cooperation of the pressing ring 12 and the O-ring 11 to compress the hose is beneficial to further improve the sealing effect.

[0035] A first concave tooth 5 is arranged between the clamping neck part 8 and the concave tooth part 3 inside the sleeve 1, and the width and depth of the first concave tooth 5 are both larger than those of the other concave teeth of the concave tooth part 3; a first convex tooth 6 cooperating with the first concave tooth 5 is arranged at the end of the convex tooth part 4 of the core body 2.

[0036] Setting the structure of the first convex tooth 6 and the first concave tooth 5 with larger sizes can further enhance the pulling force between the joint and the hose, with firm connection. Moreover, when the hose is squeezed, the hose deforms and elongates itself, and will contact the concave-convex structure more closely, more effectively preventing hose leakage and pulling off.

[0037] The cavity 14 inside the flange 9 is an annular cavity, the communicating gap 13 is arranged on the surface of the flange 9, and the communicating gap 13 corresponds to the mating part of the hose top plate 15 and the outer surface of the core body 2.

[0038] The communicating gap 13 corresponds to the mating part of the hose top plate 15 and the outer surface of the core body 2. When the mating part of the hose top plate 15 and the outer surface of the core body 2 leaks, the medium flows into the cavity through the communicating gap 13, and the pressure detector 7 reacts to achieve an alarm.

[0039] The pressure detector 7 is connected to an alarm device.

[0040] The alarm device (not shown) realizes the function of alarming the staff.

[0041] Embodiment: The core body 2 of the present utility model is used for sleeving with a hose (not shown). The end of the core body 2 far from the hose has a connecting thread 10 for connecting with an external structure (not shown). A square sealing ring 16 is placed between the flange 9 of the core body 2 and the hose top plate 15 at the head of the sleeve 1. An annular cavity 14 is arranged inside the flange 9 and is connected to an electric pressure gauge to prevent medium leakage, and an alarm device externally connected to the electric pressure gauge can give an alarm when leakage occurs; The sleeve 1 is sleeved outside the core body 2, and the hose is clamped between the core body 2 and the sleeve 1. On the inner side wall of the sleeve 1, there are several inner ring-shaped trapezoidal concave teeth along its axial direction to form a concave tooth part 3. On the sleeve 1 near the connection end side, there is a circle of inner ring-shaped trapezoidal first concave teeth 5. The depth and width of the first concave teeth 5 are both larger than those of other concave teeth. At the same time, several circle of pointed tooth-shaped ratchet structures form a clamping neck 8. Correspondingly, the core body 2 has several circle of ring-shaped trapezoidal convex teeth to form a convex tooth part 4 and a first convex tooth 6 corresponding to the first concave tooth 5. There is an O-ring 11 at the end of the sleeve 1 far from the hose, which cooperates with the pressing ring 12 to seal the end of the hose. The present utility model overcomes the deficiencies of the prior art. This joint can effectively prevent the phenomena of leakage and slippage of the hose installed thereon.

[0042] It can be understood that the above specific description of the present utility model is only for explaining the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the usage requirements, it is within the protection scope of the present utility model.

Claims

1. A low-pressure hose joint with an anti-dropout and anti-leakage function and an alarm function, comprising a core body (2) and a sleeve (1), wherein one end of the core body (2) is provided with a connecting thread (10), and the other end of the core body (2) is provided with a convex tooth portion (4); the sleeve (1) is arranged outside the core body (2), and a concave tooth portion (3) cooperating with the convex tooth portion (4) is arranged inside the sleeve (1), characterized in that: A flange (9) is provided on the outer surface between the connecting thread (10) and the convex tooth portion (4) of the core body (2), a cavity (14) is provided in the flange (9), and a pressure detector (7) connected to the cavity (14) is provided on the flange (9); the sleeve (1) also includes a hose top plate (15), the hose top plate (15) is provided at the end of the sleeve (1), and the hose top plate (15) is in contact with the surface of the flange (9); and a connecting gap (13) corresponding to the matching position of the hose top plate (15) and the core body (2) is provided on the flange (9).

2. The anti-dropping and anti-leakage low-pressure hose joint with alarm function according to claim 1, characterized in that: A sealing groove is provided on the surface of the flange (9) relative to the hose top plate (15), and a square sealing ring (16) is provided in the sealing groove.

3. The anti-dropping, anti-leakage and alarm-proof low-pressure hose joint according to claim 2, characterized in that: A boss (17) is provided on one side of the flange (9), the boss (17) is in contact with the hose top plate (15), and the sealing groove is provided on the surface of the boss (17).

4. The anti-dropping, anti-leakage and alarm-proof low-pressure hose joint according to claim 1, characterized in that: A clamping neck portion (8) composed of a plurality of ratchet structures is provided in the sleeve (1) between the concave tooth portion (3) and the hose top plate (15).

5. The anti-dropping, anti-leakage and alarm-proof low-pressure hose joint according to claim 4, characterized in that: A sealing groove is provided in the sleeve (1) between the clamping neck (8) and the top plate (15) of the hose, and an O-type sealing ring (11) is provided in the sealing groove; a pressure ring (12) corresponding to the sealing groove is provided on the core (2).

6. The anti-dropping, anti-leakage and alarm-proof low-pressure hose joint according to claim 4, characterized in that: A first concave tooth (5) is arranged in the sleeve (1) between the clamping neck portion (8) and the concave tooth portion (3), and the width and depth of the first concave tooth (5) are greater than other concave teeth of the concave tooth portion (3); and a first convex tooth (6) cooperating with the first concave tooth (5) is arranged at the end of the convex tooth portion (4) of the core body (2).

7. The anti-dropping, anti-leakage and alarm-proof low-pressure hose joint according to claim 1, characterized in that: The cavity (14) in the flange (9) is an annular cavity, the connecting gap (13) is arranged on the surface of the flange (9), and the connecting gap (13) corresponds to the mating position of the hose top plate (15) and the outer surface of the core body (2).

8. The anti-dropping, anti-leakage and alarm-proof low-pressure hose joint according to claim 1, characterized in that: The pressure detector (7) is connected to an alarm device.

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