WO2023184657A1

WO2023184657A1 - Connection structure

Info

Publication number: WO2023184657A1
Application number: PCT/CN2022/092519
Authority: WO
Inventors: 杜君龙; 张日奎; 纪晓磊; 张鹏
Original assignee: 烟台杰瑞石油服务集团股份有限公司
Priority date: 2022-04-01
Filing date: 2022-05-12
Publication date: 2023-10-05
Also published as: CN114704381B; CN114704381A

Abstract

Provided in the present application is a connection structure for connecting a first workpiece to a second workpiece. The connection structure comprises a first connection assembly arranged on the first workpiece; a second connection assembly, which is arranged on the second workpiece and comprises a second connection component and a fixing component, wherein the second connection component is movably arranged in terms of position, so as to be connected to the first connection assembly, and the fixing component is connected to the second connection component, and is movably arranged relative to the second connection component; and a locking part, which is at least partially arranged on the second workpiece, and is connected to the fixing component. The present application solves the problem in the prior art of the mounting and dismounting between a turbine engine and an air prefilter or an inertial separator being complex.

Description

connection structure

This application claims priority to the patent application submitted to the State Intellectual Property Office of China on April 1, 2022, with application number 202210339439.1 and the application name "Connection Structure".

Technical field

The present application relates to the technical field of disassembly and assembly of turbine engine air intake systems, and specifically, to a connection structure.

Background technique

Currently, in oilfield fracturing equipment, turbine engines are widely used because they have higher power density per unit than traditional diesel engines and can use natural gas as fuel to reduce construction costs.

However, because turbine engines require a larger air intake volume and lower air intake resistance, the turbine engine will be equipped with an air intake system, which includes a larger size and a larger number of filter elements and air pre-filters. Or inertial separator. During the installation process, due to the large size of the intake system and the turbine engine, the disassembly and assembly between the intake system and the turbine engine is complicated, the workload is large, and it is difficult to clean or replace the filter element in the intake system, etc. part.

Contents of the invention

The main purpose of this application is to provide a connection structure to solve the problem of complex assembly and disassembly between the turbine engine and the air pre-filter or inertial separator in the prior art.

In order to achieve the above object, the present application provides a connection structure for connecting a first workpiece and a second workpiece. The connection structure includes: a first connection component provided on the first workpiece; a second connection component provided on the second workpiece. On the workpiece, the second connecting component includes a second connecting component and a fixed component. The second connecting component is movably arranged to connect the second connecting component to the first connecting component; the fixed component is connected to the second connecting component, and the fixed component The locking part is movably disposed relative to the second connecting component; the locking part is at least partially disposed on the second workpiece, and the fixing component is connected to the locking part.

Further, the second connecting component is rotatably disposed around the first predetermined axis; the fixed component is rotatably disposed around the second predetermined axis relative to the second connecting component; the first predetermined axis and the second predetermined axis are staggeredly disposed.

Further, the first connection component includes a connection plate, and a hook part is provided on the connection plate; the second connection part includes a hanging ring, the hanging ring is connected to the fixed part, and the fixed part drives the hanging ring to move in a direction close to the first workpiece, and the hanging ring is It is rotatably arranged around the first predetermined axis, and at least part of the hanging ring is hung in the hook part.

Further, the second connection component also includes: a fixed base, a protruding plate is provided on the fixed base, and the fixed part is hinged on the protruding plate; a rotating shaft, the rotating shaft is connected to the hanging ring, the rotating shaft is connected to the fixed part, and the fixed part is connected to the hanging ring. The hanging ring is driven to move by the rotating shaft, and the hanging ring rotates around the axis line of the rotating shaft.

Further, a first hinge point is provided on the protruding plate, and the first hinge point is close to the connecting plate relative to the axis line of the rotation shaft.

Further, the locking part includes a clamping plate, which is arranged on the fixed base, and the clamping plate extends from the fixed base in a direction away from the first workpiece; the fixing component includes: a rotating handle, hinged on the protruding plate and connected with the hanging ring The connection is made by rotating the handle to drive the hanging ring to move; the locking handle is hinged with the rotating handle, the locking handle is provided with a card slot, and the locking handle is connected with the card plate through the card slot.

Further, the second connection component also includes: a hinge shaft, which is passed through the rotating handle and the locking handle in turn, and the locking handle rotates around the hinge shaft; a torsion spring, which is sleeved on the hinge shaft and located on the rotating handle and the lock. Between the tightening handles, both ends of the torsion spring are connected to the rotating handle and the locking handle respectively.

Further, the first workpiece is provided with a first step structure, the second workpiece is provided with a second step structure, the first step end surface of the first step structure and the second step end surface of the second step structure are located on the same plane; connection The structure also includes: a carrying component, which is disposed on the second step end surface, the carrying component is movably disposed in a direction close to or away from the first workpiece, and at least part of the carrying component overlaps on the second step end surface.

Further, the carrying assembly includes: a sleeve, which is provided on the second step end face; an opening is provided on the wall of the sleeve; a carrying pin, which is inserted into the sleeve and moves relative to the sleeve, and at least part of the carrying pin overlaps the sleeve. Connected to the end face of the second step; a limiting rod, at least part of which passes through the opening and is connected to the carrying pin, and drives the carrying pin to move through the limiting rod.

Further, the first connection component includes a support shaft, the support shaft is rotatably arranged on the first workpiece around its own axis, the support shaft is provided with a through hole, and an internal thread is provided in the through hole; the second connection component includes a press The compression pull rod is provided with an external thread. The compression pull rod is driven to rotate around the first predetermined axis through the fixed component, and the compression pull rod is threadedly connected to the through hole.

Further, the fixing component includes: a rotation pin, a first through hole is provided at one end of the compression pull rod away from the support shaft, the first through hole extends along the radial direction of the compression pull rod, and at least part of the rotation pin is passed through the first through hole. In the hole; the rotating pressing plate is provided with a second through hole opposite to the first through hole, the rotating pin is passed through the second through hole and the first through hole in sequence, and the rotating pressing plate rotates around the rotating pin.

Further, the locking part includes an ear plate, the ear plate is arranged on the second workpiece, and the ear plate is provided with a first locking hole; the rotating pressure plate is provided with a second locking hole, and the first lock is inserted sequentially through the insertion and extraction pin. In the tightening hole and the second locking hole, fix the rotating pressure plate in the locking position.

Further, the locking part also includes a mounting plate, the mounting plate is arranged on the second workpiece, the ear plate is arranged on the mounting plate, the mounting plate is provided with a third through hole, and the pressing rod is passed through the third through hole. In the through hole; the first connection component also includes: a support plate, the support plate is arranged on the first workpiece, and the support shaft is arranged on the support plate.

Further, an eccentric cam is provided at the end of the rotating pressure plate, and the second through hole is provided on the eccentric cam.

Applying the technical solution of the present application, the connection structure connects the first workpiece and the second workpiece, which can facilitate the disassembly and assembly between the first workpiece and the second workpiece. The connection structure includes a first connection component, a second connection component and a locking component. part, the first connection component is provided on the first workpiece, the second connection component is provided on the second workpiece, the second connection component includes a second connection component and a fixed component, and the second connection component is movably positioned so that the second connection component The two connecting parts are connected to the first connecting component; the fixing part is connected to the second connecting part, and the fixing part is movably disposed relative to the second connecting part; the locking part is at least partially disposed on the second workpiece, and the fixing part and the locking part connect. In this way, when the second connecting part and the first connecting component are in the connected state, the fixing part is connected to the locking part, so that the second connecting part can be locked in the connecting position, preventing the first workpiece and the second workpiece from being separated, and at the same time, when needed When disassembling the first workpiece and the second workpiece, you only need to operate the fixing part to separate the fixing part from the locking part, and then operate the fixing part to drive the second connecting part to move, so that the second connecting part is separated from the first connecting component, thereby achieving The disassembly between the first workpiece and the second workpiece has a simple structure and is easy to operate, which improves the connection stability when the first workpiece and the second workpiece are in a connected state.

Description of drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of this application. The illustrative embodiments and their descriptions of this application are used to explain this application and do not constitute an improper limitation of this application. In the attached picture:

Figure 1 shows a schematic installation diagram of the connection structure according to the present application from a first perspective;

Figure 2 shows a schematic installation diagram of the connection structure according to the present application from a second perspective;

Figure 3 shows an enlarged view of part A according to Figure 1;

Figure 4 shows a schematic structural diagram of a first embodiment of a connection structure according to the present application;

Figure 5 shows a side view of a first embodiment of the connection structure according to the present application;

Figure 6 shows a schematic structural diagram of a second embodiment of the connection structure according to the present application;

Figure 7 shows a schematic structural diagram of the second connection component in the second embodiment of the connection structure according to the present application.

Among them, the above-mentioned drawings include the following reference signs:

100. First workpiece; 1001. First step structure; 200. Second workpiece; 2001. Second step structure; 2002. Avoidance groove; 1. First connecting component; 10. Connecting plate; 101. Hook portion; 11 , support shaft; 110, through hole; 12, support plate;

2. Second connection component; 20. Second connection component; 201. Hanging ring; 21. Fixed component; 210. Rotating handle; 2101. Second hinge point; 211. Locking handle; 2110. Card slot; 23. Rotation Shaft; 2201, first hinge point; 24, hinge shaft; 25, torsion spring; 22, fixed seat; 220, protruding plate;

212. Rotating pin; 213. Rotating pressure plate; 2130. Second locking hole; 2131. Eccentric cam; 214. Insertion and extraction pin; 26. Compression rod;

3. Locking part; 30. Card plate; 31. Ear plate; 310. First locking hole; 32. Mounting plate;

4. Mounting component; 40. Sleeve; 41. Mounting pin; 42. Limiting rod;

5. Bracket; 6. Gasket;

300. Connection structure.

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, operations, means, components and/or combinations thereof.

Please refer to Figures 1 to 5. This application provides a connection structure for connecting the first workpiece 100 and the second workpiece 200. The connection structure includes: a first connection component 1, disposed on the first workpiece 100; The connecting component 2 is arranged on the second workpiece 200. The second connecting component 2 includes a second connecting component 20 and a fixed component 21. The second connecting component 20 is movably arranged to connect the second connecting component 20 with the first connecting component 20. The assembly 1 is connected; the fixing part 21 is connected to the second connecting part 20, and the fixing part 21 is movably arranged relative to the second connecting part 20; the locking part 3 is at least partially arranged on the second workpiece 200, and the fixing part 21 is connected to the lock Tight part 3 connection.

According to the connection structure provided in the present application, connecting the first workpiece 100 and the second workpiece 200 can facilitate the disassembly and assembly between the first workpiece 100 and the second workpiece 200, wherein the connection structure includes a first connection component 1, a second connection component 1 and a second workpiece 200. Component 2 and locking part 3, the first connection component 1 is provided on the first workpiece 100, the second connection component 2 is provided on the second workpiece 200, the second connection component 2 includes a second connection component 20 and a fixing component 21, The second connecting part 20 is disposed movably, so that the second connecting part 20 is connected to the first connecting component 1; the fixing part 21 is connected to the second connecting part 20, and the fixing part 21 is moveable relative to the second connecting part 20. Set; the locking part 3 is at least partially set on the second workpiece 200, and the fixing component 21 is connected to the locking part 3. In this way, when the second connecting component 20 and the first connecting component 1 are in a connected state, the fixing component 21 is connected to the locking part 3 to lock the second connecting component 20 in the connected position, thereby preventing the first workpiece 100 from connecting with the second connecting component 20 . The workpiece 200 is detached. When the first workpiece 100 and the second workpiece 200 need to be disassembled, you only need to operate the fixing part 21 to detach the fixing part 21 from the locking part 3, and then operate the fixing part 21 to drive the second connecting part 20 to move. Separating the second connecting component 20 from the first connecting component 1 enables disassembly between the first workpiece 100 and the second workpiece 200. The structure is simple and the operation is convenient, which improves the efficiency when the first workpiece 100 and the second workpiece 200 are in a connected state. connection stability.

This embodiment takes the installation of an air pre-filter on a turbine engine as an example. The first connection component 1 is provided on the turbine engine, and the second connection component 2 is provided on the air pre-filter. In this way, the fixing component 21 is used to realize the second operation at the same time. The second connecting component 20 is connected to the first connecting component 1 on the turbine engine, and the fixing component 21 is locked on the second connecting component 2 through the locking part 3. The operator only needs to operate the fixing component 21 to realize the connection between the turbine engine and the air. Disassembly and installation of pre-filter. There are multiple connecting structures 300 arranged at intervals along the extension direction of the turbine engine. Preferably, a bracket 5 is provided on the bottom of the air pre-filter, and the bracket 5 is connected to the turbine engine. The bracket 5 Located between two adjacent connection structures 300 , a sealing gasket 6 is provided between the air pre-filter and the turbine engine. The sealing gasket 6 is annular. The sealing gasket 6 is provided to avoid airflow leakage between the air pre-filter and the turbine engine. .

Specifically, the second connecting component 20 is rotatably disposed around the first predetermined axis; the fixed component 21 is rotatably disposed around the second predetermined axis relative to the second connecting component 20; the first predetermined axis and the second predetermined axis are staggeredly disposed. Such an arrangement can utilize the fixing component 21 to drive the second connecting component 20 to move and at the same time rotate relative to the second connecting component 20 to connect with the locking part 3 . It should be noted here that the first predetermined axes and the second predetermined axes are staggered, which means that the first predetermined axes and the second predetermined axes are not in the same plane, and the first predetermined axes and the second predetermined axes are parallel to each other or have angle.

In the first embodiment provided by this application, as shown in Figures 3 to 5, the first connection component 1 includes a connection plate 10, and the connection plate 10 is provided with a hook portion 101; the second connection component 20 includes a hanging ring 201 , the hanging ring 201 is connected to the fixed component 21, and the fixed component 21 drives the hanging ring 201 to move in a direction close to the first workpiece 100. The hanging ring 201 is rotatably arranged around the first predetermined axis, and at least part of the hanging ring 201 is hung on inside the hook part 101. In actual application, by rotating the fixing component 21 around the first direction, the hanging ring 201 is driven to move in a direction close to the first connecting component 1, and then the hanging ring 201 is hung in the hook portion 101, and then the fixing component 21 moves toward Rotate in the second direction so that the hook portion 101 blocks the hanging ring 201 to connect the first workpiece 100 and the second workpiece 200. Further, after the fixing component 21 rotates in the second direction to the locking position, the fixing component 21 is moved to the locking position. 21 is locked with the locking part 3. Wherein, the first direction and the second direction are opposite.

Specifically, the second connection component 2 also includes: a fixed base 22, a protruding plate 220 is provided on the fixed base 22, and the fixed component 21 is hinged on the protruding plate 220; a rotating shaft 23, which is connected with the hanging ring 201 and the hanging ring 201 respectively. The fixed component 21 is connected, the fixed component 21 drives the hanging ring 201 to move through the rotating shaft 23, and the hanging ring 201 rotates around the axis center line of the rotating shaft 23. The protruding plate 220 is provided with a first hinge point 2201 , and the first hinge point 2201 is close to the connecting plate 10 relative to the axis line of the rotation shaft 23 . In this way, during the rotation of the fixed component 21 around the first hinge point 2201, the rotation axis 23 can be used to simultaneously drive the hanging ring 201 to move toward or away from the first connection component 1.

In specific implementation, as shown in Figure 4, the locking part 3 includes a clamping plate 30, which is arranged on the fixed base 22. The clamping plate 30 extends from the fixed base 22 in a direction away from the first workpiece 100; the fixing component 21 includes: a rotating handle 210, which is hinged on the protruding plate 220 and connected to the hanging ring 201, and the hanging ring 201 is driven to move by rotating the handle 210; a locking handle 211, which is hinged with the rotating handle 210, and the locking handle 211 A clamping slot 2110 is provided on the upper body, and the locking handle 211 is clamped with the clamping plate 30 through the clamping slot 2110. Among them, the locking handle 211 is provided with a guide end surface connected to the inner wall surface of the card slot 2110. The guide end surface is a curved surface, and the guide end surface is in contact with the clamping plate 30, and during the rotation of the locking handle 211, the clamping plate 30 is clamped in the slot 2110 along the guide end surface.

In order to directly maintain a stable connection between the card slot 2110 and the card plate 30, as shown in Figure 5, the second connection component 2 also includes: a hinge shaft 24. The hinge shaft 24 is passed through the rotating handle 210 and the locking handle 211 in turn. The tightening handle 211 rotates around the hinged shaft 24; the torsion spring 25 is sleeved on the hinged shaft 24 and is located between the rotating handle 210 and the locking handle 211. The two ends of the torsion spring 25 are connected to the rotating handle 210 and the locking handle 211 respectively. . In this way, the locking handle 211 is rotated around the second hinge point 2101, and the elastic force of the torsion spring 25 is used to keep the locking handle 211 in a locked state. When disassembly is required, just manually lift the rotating handle 210 or the locking handle 211. Can be unlocked.

During the specific implementation process, the first step structure 1001 is provided on the first workpiece 100, and the second step structure 2001 is provided on the second workpiece 200. The first step end surface of the first step structure 1001 and the second step structure 2001 The second step end surface is located on the same plane; the connection structure also includes: a carrying component 4, which is disposed on the second step end surface. The carrying component 4 is movably disposed in a direction close to or away from the first workpiece 100, and at least part of the carrying component 4 Overlap on the end face of the second step. In this way, the gravity load of the second workpiece 200 is carried by the carrying component 4 to reduce the gravity load on the second connecting component 20 .

Specifically, the mounting assembly 4 includes: a sleeve 40, which is disposed on the second step end surface, and an opening is provided on the wall of the sleeve 40; a mounting pin 41, which is inserted into the sleeve 40 and moves relative to the sleeve 40, At least part of the mounting pin 41 overlaps the end surface of the second step; the limiting rod 42 passes through the opening and is connected to the mounting pin 41 , and drives the mounting pin 41 to move through the limiting rod 42 . This arrangement facilitates the operator to operate the mounting pin 41 through the limit rod 42. An escape groove 2002 is also provided on the second adjustment end surface. At least part of the limit rod 42 is located in the escape groove 2002, so that the mounting pin 41 is in the initial position, and the avoidance groove 2002 is used to limit the position of the limit rod 42 to prevent the limit rod 42 from driving the mounting pin 41 to move. After connecting the first workpiece 100 and the second workpiece 200, the limit rod 42 is moved out of the way. The groove 2002 is lifted up, and the limiting rod 42 drives the loading pin 41 to slide toward the end face of the first step, so that the loading pin 41 can be used to share the gravity of the second workpiece.

As shown in Figures 6 and 7, in the second embodiment provided by this application, the first connection component 1 includes a support shaft 11. The support shaft 11 is rotatably disposed on the first workpiece 100 around its own axis. The support shaft 11 A through hole 110 is provided, and an internal thread is provided in the through hole 110; the second connecting component 20 includes a compression pull rod 26, the compression pull rod 26 is provided with an external thread, and the compression pull rod 26 is driven around the first through the fixed component 21. The predetermined axis rotates, and the pressing rod 26 is threadedly connected to the through hole 110 . The first workpiece 100 and the second workpiece 200 are connected by the threaded connection of the pressing rod 26 and the through hole 110. After the fixing component 21 drives the pressing lever 26 to rotate around the first predetermined axis, the fixing component 21 rotates around the second predetermined axis. The axis rotates and is connected to the locking part 3.

Among them, the fixed component 21 includes: a rotation pin 212. A first through hole is provided at one end of the compression pull rod 26 away from the support shaft 11. The first through hole extends along the radial direction of the compression pull rod 26. At least part of the rotation pin 212 passes through is provided in the first through hole; the rotating pressing plate 213 is provided with a second through hole opposite to the first through hole, and the rotating pin 212 is disposed in the second through hole and the first through hole in turn, and the rotating pressing plate 213 is provided with a second through hole opposite to the first through hole. 213 rotates around the rotating pin 212. In this way, the blocking effect of the rotating pin 212 and the wall surface of the second through hole on the rotating pressing plate 213 is used to realize the rotating pressing plate 213 to drive the pressing rod 26 to rotate around the first predetermined axis, and at the same time, the rotating pressing plate 213 is realized to rotate around the rotating pin 212 .

In this embodiment, the locking part 3 includes an ear plate 31, which is provided on the second workpiece 200. The ear plate 31 is provided with a first locking hole 310; the rotating pressure plate 213 is provided with a second locking hole. 2130, insert the insertion and extraction pins 214 into the first locking hole 310 and the second locking hole 2130 in sequence to fix the rotating pressure plate 213 in the locking position. By plugging and pulling the pin 214 into the first locking hole 310 and the second locking hole 2130, the locking and unlocking of the rotating pressure plate 213 is realized, which is easy to operate and has strong structural stability.

Further, the locking part 3 also includes a mounting plate 32. The mounting plate 32 is arranged on the second workpiece 200. The ear plate 31 is arranged on the mounting plate 32. The mounting plate 32 is provided with a third through hole through which the pressing rod 26 passes. After passing through the third through hole, it is inserted into the through hole 110; the first connection component 1 also includes: a support plate 12, the support plate 12 is provided on the first workpiece 100, and the support shaft 11 is provided on the support plate 12. Among them, the support shaft 11 is rotatably arranged around its own axis relative to the support plate 12, which can facilitate the penetration of the pressing rod 26 into the through hole 110.

In specific implementation, an eccentric cam 2131 is provided at the end of the rotating pressure plate 213, and the second through hole is provided on the eccentric cam 2131. Utilizing the eccentric effect of the eccentric cam 2131, when the rotating pressure plate 213 rotates toward the locking portion 3, the mounting plate 32 is further pressed, and the pressure plate, air pre-filter, sealing gasket 6 and turbine engine are pressed tightly.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

For the convenience of description, spatially relative terms can be used here, such as "on...", "on...", "on the upper surface of...", "above", etc., to describe what is shown in the figure. The spatial relationship between one device or feature and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a feature in the figure is turned upside down, then one feature described as "above" or "on top of" other features or features would then be oriented "below" or "below" the other features or features. under other devices or structures". Thus, the exemplary term "over" may include both orientations "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A connection structure for connecting a first workpiece (100) and a second workpiece (200), characterized in that the connection structure includes:

The first connection component (1) is provided on the first workpiece (100);

A second connection component (2) is provided on the second workpiece (200). The second connection component (2) includes a second connection component (20) and a fixing component (21). The second connection component The position of (20) is movably arranged to connect the second connecting part (20) with the first connecting component (1);

The fixing component (21) is connected to the second connecting component (20), and the fixing component (21) is movably arranged relative to the second connecting component (20);

The locking part (3) is at least partially disposed on the second workpiece (200), and the fixing component (21) is connected to the locking part (3).
The connection structure according to claim 1, characterized in that the second connection component (20) is rotatably arranged around a first predetermined axis;

The fixed component (21) is rotatably arranged around a second predetermined axis relative to the second connecting component (20); the first predetermined axis and the second predetermined axis are staggered.
The connection structure according to claim 2, characterized in that the first connection component (1) includes a connecting plate (10), and a hook portion (101) is provided on the connecting plate (10);

The second connecting part (20) includes a hanging ring (201). The hanging ring (201) is connected to the fixed part (21). The fixed part (21) drives the hanging ring (201) toward Moving in a direction close to the first workpiece (100), the hanging ring (201) is rotatably arranged around the first predetermined axis, and at least part of the hanging ring (201) is hung on the hook portion ( 101) within.
The connection structure according to claim 3, characterized in that the second connection component (2) further includes:

Fixed base (22), the fixed base (22) is provided with a protruding plate (220), and the fixing component (21) is hinged on the protruding plate (220);

The rotating shaft (23) is connected to the hanging ring (201), the rotating shaft (23) is connected to the fixed component (21), and the fixed component (21) passes through the The rotating shaft (23) drives the hanging ring (201) to move, and the hanging ring (201) rotates around the axis of the rotating shaft (23).
The connection structure according to claim 4, characterized in that a first hinge point (2201) is provided on the protruding plate (220), and the first hinge point (2201) is relative to the rotation axis (23 ) is close to the connecting plate (10).
The connection structure according to claim 4, characterized in that the locking part (3) includes a clamping plate (30), the clamping plate (30) is arranged on the fixed seat (22), and the clamping plate (30) The plate (30) extends from the fixed base (22) in a direction away from the first workpiece (100); the fixed component (21) includes:

The rotating handle (210) is hinged on the protruding plate (220) and connected with the hanging ring (201), and the hanging ring (201) is driven to move by the rotating handle (210);

Locking handle (211), the locking handle (211) is hinged with the rotating handle (210), the locking handle (211) is provided with a slot (2110), the locking handle (211) It is clamped with the clamping plate (30) through the clamping slot (2110).
The connection structure according to claim 6, characterized in that the second connection component (2) further includes:

Hinge shaft (24), the hinge shaft (24) is passed through the rotating handle (210) and the locking handle (211) in turn, and the locking handle (211) revolves around the hinge shaft (24) ) rotate;

The torsion spring (25) is sleeved on the hinge shaft (24) and is located between the rotating handle (210) and the locking handle (211). The two ends of the torsion spring (25) are respectively connected to The rotating handle (210) and the locking handle (211) are connected.
The connection structure according to any one of claims 1 to 7, characterized in that the first workpiece (100) is provided with a first step structure (1001), and the second workpiece (200) is provided with a first step structure (1001). Second step structure (2001), the first step end surface of the first step structure (1001) and the second step end surface of the second step structure (2001) are located on the same plane; the connection structure also includes:

A mounting component (4) is disposed on the second step end surface. The mounting component (4) is movably disposed in a direction close to or away from the first workpiece (100). The mounting component (4) At least partially overlaps the second step end surface.
The connection structure according to claim 8, characterized in that the carrying component (4) includes:

A sleeve (40) is provided on the end face of the second step, and an opening is provided on the wall of the sleeve (40);

A carrying pin (41) is inserted into the sleeve (40) and moves relative to the sleeve (40). At least part of the carrying pin (41) overlaps the second step end surface;

Limiting rod (42). At least part of the limiting rod (42) passes through the opening and is connected to the carrying pin (41). The limiting rod (42) drives the carrying pin (41) move.
The connection structure according to claim 2, characterized in that the first connection component (1) includes a support shaft (11), and the support shaft (11) is rotatably arranged on the first workpiece around its own axis. (100), the support shaft (11) is provided with a through hole (110), and an internal thread is provided in the through hole (110);

The second connecting component (20) includes a compression pull rod (26). The compression pull rod (26) is provided with an external thread. The compression pull rod (26) is driven around the second connecting member through the fixing component (21). A predetermined axis rotates, and the pressing rod (26) is threadedly connected to the through hole (110).
The connection structure according to claim 10, characterized in that the fixing component (21) includes:

Rotating pin (212), the end of the compression pull rod (26) away from the support shaft (11) is provided with a first through hole, the first through hole is along the radial direction of the compression pull rod (26) Extend, at least part of the rotation pin (212) is inserted into the first through hole;

The rotating pressing plate (213) is provided with a second through hole opposite to the first through hole, and the rotating pin (212) is inserted through the second through hole and the first through hole in turn. In the first through hole, the rotating pressing plate (213) rotates around the rotating pin (212).
The connection structure according to claim 11, characterized in that the locking part (3) includes an ear plate (31), the ear plate (31) is provided on the second workpiece (200), and the The ear plate (31) is provided with a first locking hole (310);

The rotating pressure plate (213) is provided with a second locking hole (2130), and a plug-and-pull pin (214) is inserted into the first locking hole (310) and the second locking hole (2130) in sequence. , fixing the rotating pressure plate (213) in the locking position.
The connection structure according to claim 12, characterized in that the locking part (3) further includes a mounting plate (32), the mounting plate (32) is provided on the second workpiece (200), so The lug plate (31) is provided on the mounting plate (32). The mounting plate (32) is provided with a third through hole, and the pressing rod (26) passes through the third through hole and then passes through the third through hole. Located in the through hole (110); the first connection component (1) also includes:

Support plate (12), the support plate (12) is provided on the first workpiece (100), and the support shaft (11) is provided on the support plate (12).
The connection structure according to any one of claims 11 to 13, characterized in that an eccentric cam (2131) is provided at the end of the rotating pressure plate (213), and the second through hole is provided on the eccentric cam. (2131) on.