Quick-assembly and quick-disassembly connecting structure

Abstract

The utility model discloses a connecting structure capable of being quickly assembled and disassembled, which belongs to the technical field of track line connecting structures and comprises a positioning column, a positioning sleeve and a fastening stud. The positioning sleeve is used for being connected with a first component, a positioning concave table and a threaded hole which are coaxially arranged are formed in the positioning sleeve, and the positioning concave table is located at the end, away from the first component, of the threaded hole; the positioning column comprises a column body and a pressing step, the column body is of a hollow structure, the column body is used for being matched with the positioning concave table in an inserted mode, and the pressing step is fixedly connected with the second component and presses the second component on the first component through a fastening stud; the fastening stud penetrates through the column body to be in threaded fit with the threaded hole of the positioning sleeve, and a cylindrical boss used for pressing the positioning column is arranged on the fastening stud. The quick-release pin shaft has the effect of improving the structural stability of an existing quick-release pin shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of track line connection structures, in particular to a quick-install and quick-disassemble connection structure. Background Art

[0002] The existing vehicle quick-install and quick-disassemble pin shaft structure generally adopts the cooperation of the pull ring and the flange to realize the positioning of the pin shaft or realizes the positioning of the pin shaft through the action of the steel ball. During use, there is inevitably a gap between the pin shaft and the positioning hole, which will cause the installed parts and the pin shaft to shake or fall off. In addition, the pin shaft is directly subjected to force, which causes great damage to its structure and is prone to safety hazards.

[0003] The patent with the announcement number CN218494024U discloses a vehicle quick-install and quick-disassemble pin shaft structure. It includes a pin shaft sleeve, which includes a first channel opened axially and a plurality of installation cavities connected to the first channel and opened radially, a steel ball is installed in the installation cavity, and the diameter of the opening outside the installation cavity is smaller than the diameter of the steel ball; a movable shaft, which includes a first part for ejecting the steel ball and a second part that cannot eject the steel ball; and a plurality of elastic units, one end of the elastic unit abuts against the first step wall of the pin shaft sleeve, and the other end abuts against the second step wall of the movable shaft, when there is no external force, the position of the first part of the movable shaft corresponds to the position of the steel ball and ejects part of the steel ball out of the installation cavity.

[0004] Although this patent can realize the positioning and quick disassembly and assembly of the pin, during use, if one wants to realize the quick disassembly and assembly of the pin, there must be a gap between the pin and the positioning hole, which will cause the installation component to shake. In addition, the pin is directly subjected to force, which causes great damage to its structure and is prone to safety hazards. Utility Model Content

[0005] The utility model provides a quick-install and quick-disassemble connection structure to solve the technical problem of poor stability of the existing quick-disassemble pin shaft structure.

[0006] According to one aspect of the utility model, a quick-install and quick-disassemble connection structure is provided, which is used to connect a first component and a second component, including a positioning column, a positioning sleeve and a fastening stud; the positioning sleeve is used to connect with the first component, and a coaxially arranged positioning recess and a threaded hole are provided in the positioning sleeve, and the positioning recess is located at the end of the threaded hole away from the first component; the positioning column includes a column body and a clamping step, and the column body is a hollow structure, and the column body is used to be plugged and matched with the positioning recess, and the clamping step is fixedly connected to the second component and the second component is pressed onto the first component by the fastening stud; the fastening stud passes through the column body and is threadedly matched with the threaded hole of the positioning sleeve, and the fastening stud is provided with a cylindrical boss for clamping the positioning column.

[0007] Optionally, a recess is formed on the positioning column, and the boss of the fastening stud is located in the recess of the positioning column.

[0008] Optionally, the quick-install and quick-release connection structure further comprises a limit pin plugged into the clamping step, the limit pin is vertically arranged to the fastening stud, and the limit pin passes through the positioning column and abuts against a side of the cylindrical boss away from the positioning sleeve.

[0009] Optionally, the limit pin is a button-type ball head locking pin.

[0010] Optionally, an anti-slip ear is provided on the upper portion of the positioning column pressing step, and an anti-slip rope connected to the anti-slip ear is provided on the limiting pin.

[0011] Optionally, a handle is vertically provided at one end of the fastening stud away from the positioning sleeve.

[0012] Optionally, a hexagonal hole corresponding to the position of the fastening stud is provided on a side of the handle away from the fastening stud;

[0013] And / or, a hexagonal hole is formed at the end of the handle.

[0014] Optionally, a sealing plate for closing the positioning column recess is provided on a side of the positioning column away from the positioning sleeve, the fastening stud passes through the sealing plate, and the boss of the fastening stud is located between the sealing plate and the bottom surface of the positioning column recess.

[0015] Optionally, a pin hole cooperating with a limiting pin is provided on the positioning column, and a vertical side plane perpendicular to the pin hole is provided on the positioning column at the position of the pin hole.

[0016] Optionally, a chamfer is provided at the opening of the positioning recess.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] The plug-in cooperation of the locating sleeve and the locating column can achieve accurate positioning. The gap between the two is small and it is not easy to shake. The threaded connection of the fastening stud and the locating sleeve can press the locating column into the locating sleeve to further improve the stability of the connection. The limit pin passes through the locating column and abuts against the side of the cylindrical boss away from the locating sleeve to fix the position of the fastening stud to prevent it from loosening due to vibration or external force. It can not only realize rapid positioning, quick disassembly and quick installation of components, but also lock the installed components to avoid shaking, loosening and falling off of the components after installation, thereby improving safety.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the exploded state of the quick-install and quick-disassemble connection structure of the utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the quick-install and quick-disassemble connection structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the positioning column structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the installation components of the quick-install and quick-disassemble connection structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the assembly status of components of the quick-install and quick-disassemble connection structure of the utility model.

[0026] Legend:

[0027] 1. Positioning column; 11. Column body; 12. Pin hole; 13. Anti-slip ear; 2. Fastening stud; 21. Stud body; 22. Handle; 3. Closing plate; 4. Positioning sleeve; 41. Positioning recess; 42. Threaded hole; 5. Limit pin; 51. Control button; 52. Ball head; 53. Anti-slip rope; a. Second component; b. First component. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The present application embodiment discloses a quick-install and quick-release connection structure. Figure 1 , Figure 4 and Figure 5The quick-install and quick-disassemble connection structure is used to connect the first component b and the second component a, and includes a positioning column 1, a positioning sleeve 4 and a fastening stud 2; the positioning sleeve 4 is used to connect with the first component b, and a coaxially arranged positioning recess 41 and a threaded hole 42 are provided in the positioning sleeve 4, and the positioning recess 41 is located at the end of the threaded hole 42 away from the first component b; the positioning column 1 includes a column 11 and a clamping step, the column 11 is a hollow structure, the column 11 is used to be plugged and matched with the positioning recess 41, the clamping step is fixedly connected to the second component a and the second component a is pressed onto the first component b through the fastening stud 2; the fastening stud 2 passes through the column 11 and is threadedly matched with the threaded hole 42 of the positioning sleeve 4, and a cylindrical boss for clamping the positioning column 1 is provided on the fastening stud 2.

[0031] Through the unique configuration including the positioning column 1, the positioning sleeve 4 and the fastening stud 2, an efficient, stable and safe connection between the first component b and the second component a is achieved. The positioning sleeve 4 is fixed on the first component b, and is designed with a coaxial positioning recess 41 and a threaded hole 42 inside, wherein the positioning recess 41 is located away from the threaded hole 42 at one end of the first component b, providing a precise positioning reference for the positioning column 1. The positioning column 1 is designed as a hollow structure, including a column 11 and a clamping step for connecting the second component a, which is plugged into the positioning recess 41 in the positioning sleeve 4 to ensure accurate alignment between the two components. The fastening stud 2 passes through the column 11 and is threadedly matched with the threaded hole 42 of the positioning sleeve 4. The cylindrical boss thereon is specifically used to apply pressure to the positioning column 1, thereby pressing the second component a onto the first component b, ensuring the firmness and stability of the connection. This design not only simplifies the installation process and makes quick loading and unloading possible, but also ensures the high stability and safety of the connection, effectively avoiding safety hazards caused by loose connections. It is suitable for occasions that require frequent loading and unloading or adjustment, such as track line inspection and maintenance engineering vehicles, etc., and significantly improves work efficiency and equipment reliability.

[0032] Reference Figure 2 and Figure 3 In one embodiment, a recess is provided on the positioning column 1, and the boss of the fastening stud 2 is located in the recess of the positioning column 1. The diameter of the cylindrical boss is smaller than the diameter of the recess of the positioning column 1. In the quick-install and quick-disassemble connection structure, the design that the recess is provided on the positioning column 1 and the boss of the fastening stud 2 is located just in this recess plays a key role: it ensures the precise alignment and stability of the fastening stud 2 when pressure is applied. This design allows the boss of the fastening stud 2 to form a tight fit with the recess of the positioning column 1, so that during the tightening process, the pressure can be effectively evenly distributed over the entire contact surface of the connection. This not only enhances the stability of the connection and reduces the risk of displacement or loosening due to vibration or load changes, but also significantly improves the repeatability and reliability of the assembly.

[0033] Reference Figure 2 and Figure 3 In one embodiment, the quick-install and quick-disassemble connection structure also includes a limit pin 5 that is plugged into the compression step. The limit pin 5 is vertically arranged with the fastening stud 2, and the limit pin 5 passes through the positioning column 1 and abuts against the side of the cylindrical boss away from the positioning sleeve 4. The setting of the limit pin 5 effectively prevents the fastening stud 2 from excessive rotation or loosening during the assembly process. Through the vertical setting of the limit pin 5 and the design of passing through the positioning column 1 and the cylindrical boss, when the fastening stud 2 reaches a certain degree of tightening, the limit pin 5 can ensure that the distance between the cylindrical boss and the positioning column 1 reaches the optimal state, preventing the fastening stud 2 from damaging the connection parts or causing the connection failure due to excessive rotation. Secondly, the role of the limit pin 5 is to provide additional safety protection. Through the setting of the limit pin 5, once the fastening stud 2 reaches a predetermined tightening force, the limit pin 5 will prevent the distance between the cylindrical boss and the positioning column 1 from changing again, thereby ensuring the stability and reliability of the connection and avoiding the safety hazards caused by the loosening of the fastening stud 2 during use. Finally, the design of the stop pin 5 also simplifies the assembly and disassembly process. When the connection structure needs to be disassembled, only the stop pin 5 needs to be taken out, and there is no need to worry about the misalignment or damage of the connection parts, which greatly improves the convenience and efficiency of the operation.

[0034] In one embodiment, the limit pin 5 is a button-type ball head 52 locking pin. The design of the limit pin 5 as a button-type ball head 52 locking pin achieves a fast and reliable locking and unlocking function through a built-in spring mechanism and button operation. When the user presses the control button 51 on the limit pin 5, the internal spring is compressed, causing the ball head 52 to shrink inward, thereby allowing the limit pin 5 to be inserted into or pulled out of the pin hole 12. After releasing the control button 51, the force of the spring pushes the ball head 52 to expand outward and locks in the edge or specific groove inside the pin hole 12, thereby fixing the position of the fastening stud 2 and preventing it from loosening under vibration or external force. The purpose of this design is to ensure that the connection structure can remain stable in an environment subjected to pressure and vibration, avoid accidental falling off or displacement of components, and thus improve overall safety and reliability.

[0035] Reference Figure 2 and Figure 3 In one embodiment, an anti-drop ear 13 is provided on the upper part of the pressing step of the positioning column 1, and an anti-drop rope 53 connected to the anti-drop ear 13 is provided on the limit pin 5. When the limit pin 5 is not in the locked position, the anti-drop rope 53 is connected to the anti-drop ear 13, so that even if it is completely pulled out of the pin hole 12, the limit pin 5 is still attached to a part of the connection structure. This design ensures that the limit pin 5 will not be separated from the connection structure even in the quick installation and quick removal operation, thereby avoiding the possibility of losing the limit pin 5 in the working environment.

[0036] Reference Figure 1 , Figure 2 and Figure 3 In one embodiment, the fastening stud 2 includes a stud body 21, and a handle 22 is vertically provided at one end of the stud body 21 away from the positioning sleeve 4. The design of the handle 22 being vertically provided at one end of the fastening stud 2 away from the positioning sleeve 4 allows the user to tighten or loosen the connection structure only by manual operation without any additional tools. The handle 22 provides sufficient leverage, allowing the user to easily rotate the fastening stud 2, thereby achieving a quick locking or unlocking action. When it is necessary to connect two components, the user passes the fastening stud 2 through the positioning column 1 body, and then rotates the handle 22, and uses the meshing action of the thread to lock the fastening stud 2 into the positioning sleeve 4, thereby achieving a firm connection of the components. On the contrary, when it is necessary to disassemble the connection, the user can easily loosen the fastening stud 2 by rotating the handle 22 in the opposite direction, thereby quickly disassembling the two components. This design greatly improves the convenience and efficiency of operation, avoids the problem of time delays caused by finding suitable tools, and reduces the complexity of operation, making the quick-install and quick-disassemble connection structure more suitable for application scenarios that require frequent loading and unloading, such as rapid repair and component replacement of track line inspection and maintenance engineering vehicles, thereby improving work efficiency and reducing maintenance costs.

[0037] In one embodiment, a hexagon socket corresponding to the position of the fastening stud 2 is provided on the side of the handle 22 away from the fastening stud 2; and / or, a hexagon socket is provided at the end of the handle 22. When it is necessary to tighten or release the connection, the user can insert a hexagon socket or torque wrench of appropriate size into the hexagon socket on the handle 22, and then increase the rotation force through the leverage of the wrench, so as to make the tightening or unlocking operation easier. If the fastening stud 2 is in a narrow or difficult to operate directly position, this design can provide a better operating angle and greater force, making the operation more convenient and efficient. In addition, the hexagon socket at the end of the handle 22 also provides a backup operation method. If for some reason, the hexagon socket on the other side of the handle 22 cannot be used, the user can still operate through the hexagon socket at the end of the handle 22, ensuring the flexibility and continuity of the connection operation.

[0038] Reference Figure 2 and Figure 3In one embodiment, a sealing plate 3 for closing the recess of the positioning column 1 is provided on one side of the positioning column 1 away from the positioning sleeve 4, and the fastening stud 2 passes through the sealing plate 3, and the boss of the fastening stud 2 is located between the sealing plate 3 and the bottom surface of the recess of the positioning column 1. The sealing plate 3 is located between the recess of the positioning column 1 and the fastening stud 2, and the sealing plate 3 is fixedly connected or welded to the positioning column 1. The fastening stud 2 passes through the sealing plate 3 and cooperates with the threaded hole 42 of the positioning sleeve 4. By tightening the fastening stud 2, the second component a is pressed against the first component b. The boss of the fastening stud 2 is located between the sealing plate 3 and the bottom surface of the recess of the positioning column 1, so as to prevent the fastening stud 2 from falling off or being lost when it is in a non-connected state with the positioning sleeve 4. This design ensures that the connecting parts can still remain firm when subjected to vibration and external forces, thereby improving the reliability and safety of the overall connection structure.

[0039] In one embodiment, a pin hole 12 cooperating with the limit pin 5 is provided on the positioning column 1, and a vertical side plane perpendicular to the pin hole 12 is provided on the positioning column 1 at the position of the pin hole 12. The existence of the pin hole 12 allows the limit pin 5 to pass through the positioning column 1, thereby connecting with other components in the connection structure. The setting of the vertical side plane ensures that the limit pin 5 can be vertically inserted into the pin hole 12 and maintain a stable positioning. By cooperating with the vertical side plane, the limit pin 5 can be accurately positioned at a specific position of the pin hole 12, thereby ensuring the accuracy and stability of the connection structure. The purpose of this design is to ensure the correct positioning and stability of the connection components during the assembly process. Through the cooperation of the pin hole 12 and the vertical side plane, the limit pin 5 can effectively prevent the connection components from accidentally moving or loosening during use, thereby improving the reliability and safety of the connection structure.

[0040] In one embodiment, a chamfer is provided at the orifice position of the positioning recess 41. The presence of the chamfer makes it easier for the connecting component to align and insert into the positioning recess 41. When the connecting component needs to dock with the positioning recess 41, the chamfer design can guide the component in the correct direction and enter the interior of the recess more easily, thereby reducing friction and resistance during the assembly process. This design makes the assembly process smoother, reduces unnecessary friction and resistance that may occur during the assembly process, and improves the efficiency of assembly. In addition, the chamfer design also helps to avoid jamming or squeezing between the connecting components, thereby reducing the risk of damage or deformation that may be caused during the assembly process. By making it easier for the connecting component to enter the positioning recess 41, the chamfer design can also reduce the labor intensity of the assembly operator and improve the comfort and convenience of assembly.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quick-install and quick-release connection structure, used to connect a first component (b) and a second component (a), characterized in that: It comprises a positioning column (1), a positioning sleeve (4) and a fastening stud (2); The positioning sleeve (4) is used to connect with the first component (b), and a coaxially arranged positioning recess (41) and a threaded hole (42) are provided in the positioning sleeve (4), and the positioning recess (41) is located at an end of the threaded hole (42) away from the first component (b); The positioning column (1) comprises a column body (11) and a pressing step, wherein the column body (11) is a hollow structure, and the column body (11) is used for plugging and matching with the positioning recess (41), and the pressing step is fixedly connected to the second component (a) and presses the second component (a) onto the first component (b) through a fastening stud (2); The fastening stud (2) passes through the column (11) and is threadedly engaged with the threaded hole (42) of the positioning sleeve (4); the fastening stud (2) is provided with a cylindrical boss for pressing the positioning column (1).

2. The quick-install and quick-release connection structure according to claim 1, characterized in that: The positioning column (1) is provided with a recessed platform, and the boss of the fastening stud (2) is located in the recessed platform of the positioning column (1).

3. The quick-install and quick-release connection structure according to claim 2, characterized in that: The quick-install and quick-release connection structure also includes a limit pin (5) plugged into the clamping step, the limit pin (5) is vertically arranged with the fastening stud (2), and the limit pin (5) passes through the positioning column (1) and abuts against the side of the cylindrical boss away from the positioning sleeve (4).

4. The quick-install and quick-release connection structure according to claim 3, characterized in that: The limit pin (5) is a button-type ball head (52) locking pin.

5. The quick-install and quick-release connection structure according to claim 3, characterized in that: An anti-slip ear (13) is arranged on the upper part of the pressing step of the positioning column (1), and an anti-slip rope (53) connected to the anti-slip ear (13) is arranged on the limiting pin (5).

6. The quick-install and quick-release connection structure according to claim 1, characterized in that: A handle (22) is vertically arranged at one end of the fastening stud (2) away from the positioning sleeve (4).

7. The quick-install and quick-release connection structure according to claim 6, characterized in that: A hexagonal hole corresponding to the position of the fastening stud (2) is provided on a side of the handle (22) away from the fastening stud (2); and / or a hexagonal hole is provided at the end of the handle (22).

8. The quick-install and quick-release connection structure according to claim 3, characterized in that: A sealing plate (3) for closing the recess of the positioning column (1) is provided on the side of the positioning column (1) away from the positioning sleeve (4); the fastening stud (2) passes through the sealing plate (3); and the boss of the fastening stud (2) is located between the sealing plate (3) and the bottom surface of the recess of the positioning column (1).

9. The quick-install and quick-release connection structure according to claim 8, characterized in that: The positioning column (1) is provided with a pin hole (12) that matches the limiting pin (5), and the positioning column (1) is provided with a vertical side plane perpendicular to the pin hole (12) at the position of the pin hole (12).

10. The quick-install and quick-release connection structure according to claim 1, characterized in that: The opening of the positioning recess (41) is chamfered.

Images