A connecting mechanism and a device to prevent joint loosening

Abstract

This utility model relates to the field of connector technology, and in particular to a connection mechanism and a device for preventing connector loosening. The connection mechanism includes a first connecting body, a first connecting head connected to the first connecting body, and a plug rod that is simultaneously inserted into the first connecting body and the first connecting head. At least one set of first connecting heads is provided. When the first connecting body is connected to the first connecting head, the plug rod passes through both the first connecting body and the first connecting head. The plug rod keeps the axial and circumferential positions of the first connecting body and the first connecting head stable. In the working state, the axial and circumferential positions of the first connecting body and the first connecting head are kept stable by simultaneously inserting the plug rod into both the first connecting body and the first connecting head.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connection mechanism and a device for preventing connector loosening. Background Technology

[0002] Conventional pressure gauges and other unions typically rely on friction to prevent loosening through threaded connections and sealing gaskets. Under dynamic loads, material creep or vibration can cause a decrease in preload, or high-frequency micro-vibrations can easily occur at the connection between the pressure gauge and the ball valve due to media impact. Existing technologies cannot simultaneously solve the problems of axial displacement and circumferential rotational loosening. Over a long period of time, media leakage can easily occur, leading to equipment malfunctions. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] Given that the existing technology mentioned above cannot simultaneously solve the problems of axial displacement and circumferential rotational loosening of the live joint, this utility model is proposed.

[0005] Therefore, one of the objectives of this invention is to provide a connecting mechanism.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including a first connecting body, a first connector head connected to the first connecting body, and a plug rod that is simultaneously inserted into the first connecting body and the first connector head; at least one set of the first connector head is provided; when the first connecting body is connected to the first connector head, the plug rod passes through both the first connecting body and the first connector head, and the axial and circumferential positions of the first connecting body and the first connector head are kept stable by the plug rod.

[0007] In a preferred embodiment of the connecting mechanism described in this utility model, the inner wall of the first connecting body is provided with a threaded groove, the outer wall of the first connecting head is provided with an external thread, and the first connecting body and the first connecting head are threadedly connected.

[0008] In a preferred embodiment of the connecting mechanism described in this utility model, the inner wall of the first connecting body is provided with two threaded grooves mirrored along the horizontal central axis, and the two threaded grooves are screwed in opposite directions; the outer wall of the first connecting head is provided with external threads, and the first connecting body and the first connecting head are threadedly connected.

[0009] In a preferred embodiment of the connecting mechanism described in this utility model, an isolation plate is provided at the horizontal axis of the first connecting body, and two sets of the first connecting heads are provided. The two sets of the first connecting heads are respectively screwed into the inner wall of the first connecting body from both ends. The isolation plate is used to limit the position of the two sets of the first connecting heads on the inner wall of the first connecting body.

[0010] In a preferred embodiment of the connecting mechanism of this utility model, the outer wall of the first connector is provided with a first groove, and the inner wall of the first connector is provided with a second groove; in the working state, the first groove and the second groove form a circular groove, the circular groove is adapted to the outer wall of the plug rod, and the plug rod can be inserted into the circular groove.

[0011] In a preferred embodiment of the connecting mechanism of this utility model, the outer wall of the first connector is provided with an external thread, and the end of the outer wall of the first connector is provided with a ratchet; the inner wall of the first connector is provided with a strip groove in the axial direction, and the end of the inner wall of the first connector is provided with an annular groove, the width of the annular groove being adapted to the width of the ratchet.

[0012] As a preferred embodiment of the connecting mechanism of this utility model, the cross-section of the plug rod is axially rectangular, and the plug rod is adapted to the strip groove; in the working state, the first connecting body is threadedly connected to the first connecting head, the ratchet is located in the annular groove, and the plug rod passes through the strip groove between two adjacent sets of ratchets.

[0013] In a preferred embodiment of the connecting mechanism of this utility model, the end of the plug rod is connected to a lifting block, the lifting block is inverted "L" shape, and a friction pad lifting block is provided at the end of the lifting block that contacts the outer wall of the first connecting body.

[0014] To solve the above-mentioned technical problems, this utility model also provides the following technical solution: a device for preventing joint loosening, including the above-mentioned connecting mechanism, and further including an elastic sheet, one end of the elastic sheet being connected to the first connecting head, the other end of the elastic sheet being connected to the second connecting head, and the second connecting head being connected to the equipment connector; in the working state, two sets of equipment connectors are connected to two sets of the second connecting heads, and the axial and circumferential positions of the two sets of equipment connectors and the connecting mechanism are kept stable by the insertion rod simultaneously penetrating the first connecting body and the first connecting head.

[0015] As a preferred embodiment of the device for preventing joint loosening of this utility model, the elastic sheet is provided in multiple sets along the circumference of the end face of the first connector, and the elastic sheet is inserted into the first connector and the second connector.

[0016] Beneficial effects: In the working state, the axial and circumferential positions of the first connector and the first connector are kept stable by simultaneously inserting the plug rod into the first connector and the first connector.

[0017] By inserting an elastic piece between the first connector and the second connector, a continuous preload is provided to the first connector and the second connector, which can counteract the weakening of the preload caused by damage or deformation of the seal, long-term vibration or temperature changes, and prevent the joint from becoming loose or falling off. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 Overall schematic diagram of the device to prevent joint loosening Figure 1 .

[0020] Figure 2 Schematic diagram of a device to prevent explosion due to loose joints. Figure 1 .

[0021] Figure 3 Overall schematic diagram of the device to prevent joint loosening Figure 2 .

[0022] Figure 4 Schematic diagram of a device to prevent explosion due to loose joints. Figure 2 . Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1

[0027] Reference Figures 1-4 This is the first embodiment of the present utility model. This embodiment provides a connection mechanism, including a first connecting body 1, a first connecting head 2 connected to the first connecting body 1, and a plug rod 3 that is simultaneously plugged into the first connecting body 1 and the first connecting head 2.

[0028] At least one set of first connectors 2 is provided;

[0029] When the first connector 1 is connected to the first connector 2, the plug rod 3 passes through both the first connector 1 and the first connector 2, and the axial and circumferential positions of the first connector 1 and the first connector 2 are kept stable by the plug rod 3.

[0030] It should be noted that the function of the first connector 1 is to provide connection space for the first connector 2. The first connector 2 can be set as one set or two sets. When the first connector 2 is set as two sets, the first connector 2 can enter the inner wall of the first connector 1 from both ends and connect with the first connector 1. When the first connector 1 and the first connector 2 are in the connected state, the plug rod 3 is inserted into the first connector 2 and the first connector 1 at the same time. Its function is to maintain the stable connection between the first connector 2 and the first connector 1, so that the first connector 2 will not rotate along the inner wall of the first connector 1 or undergo axial displacement.

[0031] Example 2

[0032] Reference Figures 1-2 This is the second embodiment of the present invention. Unlike the previous embodiment, the first connecting body 1 has a threaded groove on its inner wall and the first connecting head 2 has an external thread on its outer wall. The first connecting body 1 and the first connecting head 2 are threadedly connected.

[0033] Specifically, the outer wall of the first connector 2 is provided with an external thread, and the end of the outer wall of the first connector 2 is provided with a ratchet 7; the inner wall of the first connector 1 is provided with a strip groove 8 in the axial direction, and the end of the inner wall of the first connector 1 is provided with an annular groove 12, the width of the annular groove 12 being adapted to the width of the ratchet 7.

[0034] Furthermore, the cross-section of the plug rod 3 is an axial rectangle, and the plug rod 3 is adapted to the strip groove 8; in the working state, the first connecting body 1 is threadedly connected to the first connecting head 2, the ratchet 7 is located in the annular groove 12, and the plug rod 3 passes through the strip groove 8 between two adjacent sets of ratchet 7.

[0035] Furthermore, the end of the plug rod 3 is connected to a lifting block 9, which is an inverted "L" shape. The end of the lifting block 9 that contacts the outer wall of the first connector 1 is provided with a friction pad.

[0036] It should be noted that setting the lifting block 9 to an inverted "L" shape allows the lifting block 9 to fit against the two end faces of the first connector 1. The lifting block 9 and the plug rod 3 together generate a clamping force on the first connector 1, so that the plug rod 3 will not separate from the first connector 1.

[0037] The rest of the structure is the same as in Example 1.

[0038] Working principle: The first connector 2 is configured with two sets of ratchet teeth 7, and the two sets of first connector 2 are mirrored so that their rotation directions are opposite.

[0039] First, rotate the two sets of first connectors 2 into the threaded grooves on the inner wall of the first connector 1 from both ends until the first connectors 2 are fully inserted into the inner wall of the first connector 1 and the ends of the first connectors 2 are flush with the ends of the first connector 1. Since the ratchet teeth 7 of the two sets of first connectors 2 are mirror images, the gap positions of the ratchet teeth 7 of the two sets of first connectors 2 are the same. At this time, the slot 8 of the first connector 1 is connected to the gap positions of the two adjacent sets of ratchet teeth 7. Next, insert the plug rod 3 into the slot 8 of the first connector 1. At this time, the plug rod 3 is simultaneously located in the gap between the slot 8 and the two adjacent sets of ratchet teeth 7 until the inner wall of the lifting block 9 at the end of the plug rod 3 is in complete contact with the first connector 1. Since the lifting block 9 is inverted "L" shape and has a friction pad at the end that contacts the outer wall of the first connector 1, the plug rod 3 will not separate from the first connector 1 after being inserted into the slot 8.

[0040] The first connector 2 is fixed in position on the inner wall of the first connector 1 by the plug rod 3, so that the first connector 2 will not move or rotate axially from the inner wall of the first connector 1.

[0041] When it is necessary to separate the first connector 1 from the first connector 2, simply push the lifting block 9 upward to separate the lifting block 9 from the strip groove, and then rotate the first connector 2 and the first connector 1 to separate them in sequence.

[0042] Example 3

[0043] Reference Figure 2 This is the third embodiment of the present invention. Unlike the previous embodiment, the inner wall of the first connector 1 is provided with two threaded grooves mirrored along the horizontal central axis, and the two threaded grooves are screwed in opposite directions; the outer wall of the first connector 2 is provided with external threads, and the first connector 1 and the first connector 2 are threadedly connected.

[0044] It should be noted that the inner wall of the first connector 1 may be provided with only one threaded groove. The purpose of providing two threaded grooves with opposite screwing directions is to prevent the two sets of first connectors 2 from rotating circumferentially due to external forces in the same direction, which would push the other first connector 2 out of the first connector 1.

[0045] Specifically, an isolation plate 4 is provided at the horizontal axis of the first connector 1, and two sets of first connectors 2 are provided. The two sets of first connectors 2 are screwed into the inner wall of the first connector 1 from both ends of the first connector 1. The isolation plate 4 is used to limit the position of the two sets of first connectors 2 on the inner wall of the first connector 1.

[0046] Furthermore, the outer wall of the first connector 2 is provided with a first groove 5, and the inner wall of the first connector 2 is provided with a second groove 6; in the working state, the first groove 5 and the second groove 6 form a circular groove, which is adapted to the outer wall of the plug rod 3, and the plug rod 3 can be inserted into the circular groove.

[0047] It should be noted that the outer wall of the plug rod 3 is provided with a rubber ring. When the plug rod 3 is fully inserted into the circular groove, the rubber ring at its end generates friction and interference fit with the circular groove, so that the plug rod 3 will not separate from the circular groove.

[0048] The rest of the structure is the same as in Example 2.

[0049] Working principle: First, rotate the two sets of first connectors 2 into the threaded grooves on the inner wall of the first connector 1 from both ends until the first connectors 2 are fully inserted into the inner wall of the first connector 1 and the ends of the first connectors 2 are flush with the ends of the first connector 1. At this time, the first groove 5 and the second groove 6 form a circular groove. Then, insert the plug rod 3 into the circular groove.

[0050] Example 4

[0051] Reference Figures 3-4 This is the fourth embodiment of the present invention. Unlike the previous embodiments, this embodiment provides a device to prevent the joint from loosening, including the aforementioned connecting mechanism, and further comprising...

[0052] The elastic plate 10 has one end connected to the first connector 2 and the other end connected to the second connector 11, which is connected to the equipment connector X. It should be noted that the function of the elastic plate 10 is to provide continuous pre-tightening force to the first connector 2 and the second connector 11, so as to counteract the weakening of the pre-tightening force caused by damage, deformation, long-term vibration or temperature change of the seal, which may lead to loosening or falling off of the joint.

[0053] In operation, the two sets of equipment connectors X are connected to the two sets of second connectors 11. The plug rods 3 pass through the first connector 1 and the first connector 2 simultaneously to keep the axial and circumferential positions of the two sets of equipment connectors X and the connecting mechanism stable.

[0054] Furthermore, multiple sets of elastic sheets 10 are arranged along the circumference of the end face of the first connector 2, and the elastic sheets 10 are inserted into the first connector 2 and the second connector 11.

[0055] The rest of the structure is the same as in Example 3.

[0056] Operating procedure: Under normal conditions, the two ends of the elastic sheet 10 are inserted into the first connector 2 and the second connector 11 respectively. When in use, first complete the connection structure, and then connect the second connector 11 to the two sets of equipment connectors X by thread.

[0057] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0058] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0059] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A connection mechanism, characterized by: include, A first connector (1), a first connector (2) connected to the first connector (1), and a plug rod (3) that is simultaneously plugged into the first connector (1) and the first connector (2); The first connector (2) has at least one set; When the first connector (1) is connected to the first connector (2), the plug rod (3) passes through both the first connector (1) and the first connector (2) simultaneously, and the axial and circumferential positions of the first connector (1) and the first connector (2) are kept stable by the plug rod (3).

2. The attachment mechanism of claim 1, wherein: The inner wall of the first connector (1) is provided with a threaded groove, and the outer wall of the first connector (2) is provided with an external thread. The first connector (1) and the first connector (2) are threadedly connected.

3. The attachment mechanism of claim 1, wherein: The inner wall of the first connector (1) is provided with two threaded grooves mirrored along the horizontal central axis, and the two threaded grooves are screwed in opposite directions; The outer wall of the first connector (2) is provided with an external thread, and the first connector (1) and the first connector (2) are threadedly connected.

4. The attachment mechanism of claim 1 or 2, wherein: An isolation plate (4) is provided at the horizontal axis of the first connector (1). Two sets of the first connectors (2) are provided. The two sets of the first connectors (2) are screwed into the inner wall of the first connector (1) from both ends of the first connector (1). The isolation plate (4) is used to limit the position of the two sets of the first connectors (2) on the inner wall of the first connector (1).

5. The connecting mechanism as described in claim 1, characterized in that: The outer wall of the first connector (2) is provided with a first groove (5), and the inner wall of the first connector (2) is provided with a second groove (6); In the working state, the first groove (5) and the second groove (6) form a circular groove, which is adapted to the outer wall of the plug rod (3), and the plug rod (3) can be inserted into the circular groove.

6. The attachment mechanism of claim 1, wherein: The outer wall of the first connector (2) is provided with an external thread, and the end of the outer wall of the first connector (2) is provided with a ratchet (7); The first connector (1) has a strip groove (8) in the axial direction on its inner wall and an annular groove (12) at the end of its inner wall. The annular groove (12) is adapted to the width of the ratchet (7).

7. The attachment mechanism of claim 6, wherein: The cross-section of the plug rod (3) is an axial rectangle, and the plug rod (3) is adapted to the strip groove (8); In the working state, the first connector (1) is threadedly connected to the first connector (2), the ratchet (7) is located in the annular groove (12), and the plug rod (3) passes through the strip groove (8) between two adjacent sets of ratchet (7).

8. The attachment mechanism of claim 7, wherein: The end of the plug rod (3) is connected to a lifting block (9), which is an inverted "L" shape. The end of the lifting block (9) that contacts the outer wall of the first connector (1) is provided with a friction pad.

9. A device for preventing loosening of a joint, characterized in that: Including the connecting mechanism as described in any one of claims 1 to 8, further comprising: Elastic sheet (10), one end of which is connected to the first connector (2), and the other end of which is connected to the second connector (11), which is connected to the equipment connector (X); In operation, the two sets of equipment connectors (X) are connected to the two sets of second connectors (11). The plug rod (3) passes through the first connector (1) and the first connector (2) simultaneously to keep the axial and circumferential positions of the two sets of equipment connectors (X) and the connection mechanism stable.

10. The anti-backout device of claim 9, wherein: Multiple sets of elastic sheets (10) are arranged along the circumference of the end face of the first connector (2), and the elastic sheets (10) are inserted into the first connector (2) and the second connector (11).

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