Safety coupling

Abstract

The utility model discloses a safety coupling and belongs to the technical field of couplings. The safety coupling comprises a left half coupling body and a right half coupling body which are matched with each other, and the left half coupling body and the right half coupling body are respectively provided with a positioning structure used for mutual positioning, a magnetic structure used for magnetic matching and a sealing structure used for sealing the connecting position. The positioning structure comprises a positioning block arranged on the peripheral side of the left half coupling and a positioning groove matched with the positioning block, the magnetic structure comprises a first magnetic surface and a second magnetic surface matched with the first magnetic surface, and the sealing structure comprises a first sealing gasket, a second sealing gasket, a first sealing groove and a second sealing groove. The safety coupler solves the problem that an existing safety coupler is poor in sealing performance, the sealing performance of the safety coupler is improved by optimizing the sealing structure between the left half coupler and the right half coupler, and the risks of lubricating oil leakage and impurity invasion are reduced.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically a safety coupling. Background Technology

[0002] Common safety couplings typically consist of a left half coupling and a right half coupling, and the sealing performance at the connection between the two is crucial.

[0003] However, existing safety couplings have problems with inadequate sealing measures in practical applications. If the sealing measures are not adequate between the left and right halves of the coupling, lubricating oil can easily leak from the connection. This not only wastes lubricating oil but may also allow external impurities to enter. The entry of impurities will aggravate the wear of the internal components of the coupling, reduce transmission efficiency, and may even cause equipment failure, affecting the normal operation of the entire production system.

[0004] To address this, we propose a safety coupling that improves sealing performance and reduces the risk of lubricant leakage and impurity intrusion by optimizing the sealing structure between the left and right halves of the coupling. Utility Model Content

[0005] The purpose of this utility model is to provide a safety coupling that effectively solves the problems of inaccurate positioning, unstable connection and unreliable sealing in the prior art by setting up a mutually cooperating positioning structure, magnetic structure and sealing structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety coupling, comprising a left half coupling and a right half coupling that cooperate with each other. The left half coupling and the right half coupling are connected by a connecting device. The left half coupling and the right half coupling are respectively provided with a positioning structure for mutual positioning, a magnetic structure for magnetic cooperation, and a sealing structure for sealing the connection. There are two positioning structures, located on the end faces of the left half coupling and the right half coupling, respectively. The two are magnetically connected and positioned by the magnetic structure. The connection between the left half coupling and the right half coupling is provided with a sealing structure to prevent liquid leakage and impurity intrusion.

[0007] As a preferred technical solution, the positioning structure includes a positioning block located on the outer periphery of the left half coupling and a positioning groove located on the inner periphery of the right half coupling that cooperates with the positioning block.

[0008] As a preferred technical solution, the magnetic structure includes a first magnetic surface disposed on the end face of the positioning block and a second magnetic surface disposed on the end face of the positioning groove and cooperating with the first magnetic surface.

[0009] As a preferred technical solution, the sealing structure includes a first sealing gasket and a second sealing gasket disposed on the connecting end face of the left half coupling, and a first sealing groove and a second sealing groove disposed on the connecting end face of the right half coupling to cooperate with the first sealing gasket and the second sealing gasket.

[0010] As a preferred technical solution, the left half coupling is provided with a first threaded hole, and the right half coupling is provided with a second threaded hole.

[0011] As a preferred technical solution, the connecting device is a bolt, which passes through the first screw hole and the second screw hole to fasten the left half coupling and the right half coupling together.

[0012] As a preferred technical solution, the positioning block and the positioning groove are matched with each other, and the left half coupling and the right half coupling are quickly positioned by the positioning block and the positioning groove.

[0013] As a preferred technical solution, the first magnetic surface and the second magnetic surface are magnetically attracted to each other, and the left half coupling and the right half coupling improve the connection stability through magnetic attraction.

[0014] As a preferred technical solution, the first sealing gasket and the second sealing gasket are respectively installed on the left half of the coupling and respectively cooperate with the first sealing groove and the second sealing groove on the right half of the coupling.

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

[0016] (1) A safety coupling of this utility model can quickly and accurately align the left and right halves of the coupling by means of the positioning block, the positioning groove and the magnetic attraction, thereby reducing positional deviation and improving sealing effect.

[0017] (2) The safety coupling of this utility model forms a multi-layer sealing barrier through the cooperation of multiple sealing gaskets and sealing grooves, which effectively prevents lubricating oil leakage and impurity intrusion. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire utility model;

[0019] Figure 2 This is a schematic diagram of the overall connection of this utility model;

[0020] Figure 3 This is a schematic diagram of the left half coupling structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the right half coupling structure of this utility model.

[0022] In the diagram: 1. Left half coupling; 11. Positioning block; 111. First magnetic surface; 12. First sealing gasket; 13. Second sealing gasket; 14. First screw hole; 2. Right half coupling; 21. Positioning groove; 211. Second magnetic surface; 22. First sealing groove; 23. Second sealing groove; 24. Second screw hole; 3. Bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A safety coupling includes a left half coupling 1 and a right half coupling 2 that cooperate with each other. The left half coupling 1 and the right half coupling 2 are connected by a connecting device. The left half coupling 1 and the right half coupling 2 are respectively provided with a positioning structure for mutual positioning, a magnetic structure for magnetic engagement, and a sealing structure for sealing the connection. There are two positioning structures, located on the end faces of the left half coupling 1 and the right half coupling 2, respectively. They are magnetically connected and positioned by the magnetic structure. The connection between the left half coupling 1 and the right half coupling 2 is provided with a sealing structure to prevent liquid leakage and impurities from entering. In use, the positioning block 11 and the positioning groove 21 in the positioning structure cooperate with each other to ensure accurate alignment of the left and right half couplings during connection, reducing the sealing gap caused by positional deviation. The magnetic structure generates magnetic attraction at the connection, further pressing the sealing gasket and the sealing groove together, thereby improving the sealing effect. The multi-layer design of the sealing structure constructs an effective sealing barrier, effectively preventing lubricating oil leakage and impurities from entering, ensuring the reliable operation of the coupling.

[0025] Furthermore, the positioning structure includes a positioning block 11 located on the outer periphery of the left half coupling 1 and a positioning groove 21 located on the inner periphery of the right half coupling 2 that cooperates with the positioning block 11.

[0026] Furthermore, the magnetic structure includes a first magnetic surface 111 disposed on the end face of the positioning block 11 and a second magnetic surface 211 disposed on the end face of the positioning groove 21 and cooperating with the first magnetic surface 111.

[0027] Furthermore, the sealing structure includes a first sealing gasket 12 and a second sealing gasket 13 disposed on the connecting end face of the left half coupling 1, and a first sealing groove 22 and a second sealing groove 23 disposed on the connecting end face of the right half coupling 2 to cooperate with the first sealing gasket 12 and the second sealing gasket 13.

[0028] Furthermore, the left half coupling 1 is provided with a first screw hole 14, and the right half coupling 2 is provided with a second screw hole 24. In use, the bolts 3 can pass through the screw holes on the left and right half couplings to achieve a tight connection between the two, ensuring the tightness of the connection, reducing the risk of seal failure due to loose connection, and providing a guarantee for the stable operation of the sealing structure.

[0029] Furthermore, the connecting device is a bolt 3, which passes through the first screw hole 14 and the second screw hole 24 to fasten the left half coupling 1 and the right half coupling 2. In use, the bolt 3 connection has high connection strength and reliability. By fastening the left and right half couplings together with the bolt 3, sufficient preload can be applied to ensure that the sealing gasket at the connection is tightly fitted with the sealing groove, thereby enhancing the sealing performance and preventing liquid leakage and impurity intrusion.

[0030] Furthermore, the positioning block 11 and the positioning groove 21 are matched with each other, and the left half coupling 1 and the right half coupling 2 are quickly positioned by the positioning block 11 and the positioning groove 21. In use, the positioning block 11 and the positioning groove 21 are matched with each other, which can ensure the concentricity and end face fit of the left and right half couplings when connected, so that the sealing gasket and the sealing groove can fit evenly, avoiding local sealing gaps caused by position deviation, thereby improving the reliability and stability of the seal.

[0031] Furthermore, the first magnetic surface 111 and the second magnetic surface 211 are magnetically attracted to each other. The left half coupling 1 and the right half coupling 2 improve the connection stability through magnetic attraction. In use, the first magnetic surface 111 and the second magnetic surface 211 attract each other, generating additional clamping force, which makes the sealing gasket fit more tightly with the sealing groove, further reducing the sealing gap and improving the sealing effect. At the same time, it can also reduce the risk of connection loosening and sealing failure caused by mechanical vibration and other factors.

[0032] Furthermore, the first sealing gasket 12 and the second sealing gasket 13 are respectively installed on the left half coupling 1 and respectively cooperate with the first sealing groove 22 and the second sealing groove 23 on the right half coupling 2. In use, the multi-layer sealing gasket formed by the first sealing groove 22 and the second sealing groove 23 and the design of the sealing groove can form multiple sealing barriers, effectively preventing hydraulic oil from leaking from the connection, while preventing external impurities from entering the inside of the coupling, protecting the internal components from contamination and damage, and ensuring the long-term stable operation of the coupling.

[0033] Working Principle: This utility model discloses a safety coupling. During use, the positioning block 11 on the outer periphery of the left half coupling 1 engages with the positioning groove 21 on the inner periphery of the right half coupling 2, ensuring precise alignment of the left and right half couplings during connection. This reduces sealing gaps caused by positional deviations and improves sealing reliability. Then, the first magnetic surface 111 on the left half coupling 1 attracts the second magnetic surface 211 on the right half coupling 2, generating magnetic attraction. This not only enhances the stability of the connection between the left and right half couplings but also further tightens the seal between the sealing gasket and the sealing groove, thereby improving the sealing effect and reducing the risk of loosening and seal failure due to mechanical vibration and other factors. Next, bolts 3 are sequentially passed through the first magnetic surface 211 on the left half coupling 1. The screw hole 14 and the second screw hole 24 on the right half coupling 2 fasten the left and right half couplings together. The bolt 3 connection has high connection strength and reliability, and can apply sufficient preload to ensure that the sealing gasket at the connection is tightly fitted with the sealing groove, further enhancing the sealing performance and preventing liquid leakage and impurity intrusion. During the operation of the coupling, the first sealing gasket 12 and the second sealing gasket 13 on the connecting end face of the left half coupling 1 are tightly fitted with the first sealing groove 22 and the second sealing groove 23 on the connecting end face of the right half coupling 2, forming a multi-layer sealing barrier. This effectively prevents lubricating oil from leaking from the coupling connection, while preventing external impurities from entering the coupling, protecting internal components from contamination and damage, and ensuring the long-term stable operation of the coupling.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety coupling, comprising a left half coupling (1) and a right half coupling (2) that cooperate with each other, the left half coupling (1) and the right half coupling (2) being connected by a connecting device, characterized in that, The left half coupling (1) and the right half coupling (2) are respectively provided with a positioning structure for mutual positioning, a magnetic structure for magnetic cooperation, and a sealing structure for sealing the connection. The positioning structure is located on the end faces of the left half coupling (1) and the right half coupling (2), and the two are magnetically connected and positioned by a magnetic structure. The connection between the left half coupling (1) and the right half coupling (2) is provided with a sealing structure to prevent liquid leakage and impurities from entering.

2. A safety coupling according to claim 1, characterized in that: The positioning structure includes a positioning block (11) located on the outer periphery of the left half coupling (1) and a positioning groove (21) located on the inner periphery of the right half coupling (2) that cooperates with the positioning block (11). The magnetic structure includes a first magnetic surface (111) disposed on the end face of the positioning block (11) and a second magnetic surface (211) disposed on the end face of the positioning groove (21) and cooperating with the first magnetic surface (111).

3. A safety coupling according to claim 1, characterized in that: The sealing structure includes a first sealing gasket (12) and a second sealing gasket (13) disposed on the connecting end face of the left half coupling (1), and a first sealing groove (22) and a second sealing groove (23) disposed on the connecting end face of the right half coupling (2) to cooperate with the first sealing gasket (12) and the second sealing gasket (13).

4. A safety coupling according to claim 2, characterized in that: The left half coupling (1) is provided with a first screw hole (14), and the right half coupling (2) is provided with a second screw hole (24).

5. A safety coupling according to claim 4, characterized in that: The connecting device is a bolt (3), which passes through the first screw hole (14) and the second screw hole (24) to fasten the left half coupling (1) and the right half coupling (2).

6. A safety coupling according to claim 5, characterized in that: The positioning block (11) matches the positioning groove (21), and the left half coupling (1) and the right half coupling (2) are quickly positioned by the positioning block (11) and the positioning groove (21).

7. A safety coupling according to claim 6, characterized in that: The first magnetic surface (111) and the second magnetic surface (211) are magnetically attracted to each other, and the left half coupling (1) and the right half coupling (2) are connected and stabilized by magnetic attraction.

8. A safety coupling according to claim 3, characterized in that: The first sealing gasket (12) and the second sealing gasket (13) are respectively installed on the left half coupling (1) and respectively cooperate with the first sealing groove (22) and the second sealing groove (23) on the right half coupling (2).

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