Box holding mechanism with box pulling function

Abstract

The utility model relates to the technical field of garbage trucks, in particular to a box holding mechanism with a box pulling function, which is provided with an installation panel, a holding hook piece and a pin shaft mechanism, the holding hook piece is movably connected with the installation panel through the pin shaft mechanism, and a sliding piece which is detachably connected is arranged between the pin shaft mechanism and the installation panel. By means of the structure, direct contact between the pin shaft mechanism and the installation panel is avoided, when the pin shaft mechanism or the sliding part is damaged due to long-time use, a user can conveniently replace the pin shaft mechanism or the sliding part without replacing the installation panel, and the problem that a clip hook on an existing garbage truck is connected with a fixing plate welded to a compressor through a pin shaft, but the installation panel is damaged is effectively solved. The problems that in the long-term use process, due to working condition abrasion, the movement gap between a pin shaft and a fixing plate is gradually increased, a user cannot replace the abraded fixing plate, and consequently a clamping hook is unstable in the box body locking process are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a garbage truck technical field, concretely is a kind of box mechanism with pull box function. BACKGROUND

[0002] With the acceleration of urbanization process and the increase of population density, the production of urban domestic waste is also rising, and garbage truck, as an important part of urban environmental sanitation work, undertakes the important task of collecting, transporting and processing garbage. Garbage truck not only improves the efficiency of garbage disposal, but also helps to maintain the cleanliness and environmental sanitation of the city, and is one of the indispensable facilities in modern city life.

[0003] In the development process of garbage truck, some garbage trucks are equipped with box mechanism, which usually adopts oil cylinder straight pull type or oil cylinder multi-link connection to realize the locking and unlocking of box. In this part of garbage truck, compressor and hook are installed on the side close to the box, and the hook provides the necessary mechanical force when locking or unlocking the box. These hooks are connected with the fixed plate welded on the compressor through pin shaft to ensure its stability and reliability, however, in the long-term use process, due to the working condition wear, the movement gap between pin shaft and fixed plate gradually increases, and the user cannot replace the worn fixed plate, which leads to the instability of hook in the process of locking box, affecting the normal operation of garbage truck.

[0004] The utility model is proposed to solve the technical problems of the prior art. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned problem that the hook on the existing garbage truck is connected with the fixed plate welded on the compressor through pin shaft, however, in the long-term use process, due to the working condition wear, the movement gap between pin shaft and fixed plate gradually increases, and the user cannot replace the worn fixed plate, which leads to the instability of hook in the process of locking box, the utility model solves its technical problems by adopting the technical scheme of:

[0006] A box mechanism with pull box function, comprising a box assembly for connecting box and compressor, the box assembly comprises a mounting panel on one side of the compressor, a hook piece for locking the box, and a pin shaft mechanism, the hook piece is movably connected with the mounting panel through the pin shaft mechanism, and a sliding piece is arranged between the pin shaft mechanism and the mounting panel.

[0007] Further, the mounting panel is provided with a sliding groove penetrating through the mounting panel, and the sliding piece is located between the inner wall of the sliding groove and the outer wall of the pin shaft mechanism.

[0008] Furthermore, the sliding groove includes a first sliding groove, the pin mechanism includes a first pin hinged to the hook member, and the sliding member includes a sliding groove seat located between the inner wall of the first sliding groove and the outer wall of the first pin.

[0009] Furthermore, the slide seat is arranged along the extension direction of the first sliding groove and is threadedly connected to the first sliding groove, and the cross-section of the first sliding groove is in the shape of an "I".

[0010] Furthermore, the sliding groove includes a second sliding groove, the pin mechanism includes a second pin located at the end of the hook member and hinged to the hook member, and the sliding member includes a rolling bearing located between the inner wall of the second sliding groove and the outer wall of the second pin member.

[0011] Furthermore, the second sliding groove extends at an angle away from the hook member.

[0012] Furthermore, the housing assembly also includes a housing cylinder located on one side of the compressor and a connecting rod mechanism located between the housing cylinder and the hook component. The housing cylinder drives the connecting rod mechanism to move the hook component relative to the mounting panel, so that the hook component can lock or unlock the housing.

[0013] Furthermore, the connecting rod mechanism includes a connecting rod, the pin mechanism includes a third pin and a fourth pin, the connecting rod and the output end of the gearbox cylinder are hinged through the third pin, and the connecting rod and the mounting panel are hinged through the fourth pin.

[0014] Furthermore, the connecting rod mechanism includes a push-pull rod located between the connecting rod and the hook member, and the pin mechanism includes a fifth pin. One side of the push-pull rod is hinged to the connecting rod through the fifth pin, and the other side of the push-pull rod is hinged to the hook member through the second pin.

[0015] Furthermore, a cylinder support for mounting the cylinder is provided between the cylinder holding cylinder and the compressor, and the pin mechanism further includes a sixth pin, through which the cylinder holding cylinder is hinged to the cylinder support.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up an installation panel, a hook component, and a pin mechanism, allows the hook component to be movably connected to the installation panel via the pin mechanism. A detachable sliding component is provided between the pin mechanism and the installation panel, which helps avoid direct contact between the pin mechanism and the installation panel. When the pin mechanism or sliding component is damaged due to prolonged use, the user can easily replace it without replacing the installation panel. This effectively solves the problem in existing garbage trucks where the hook is connected to a fixed plate welded to the compressor via a pin. However, during long-term use, due to wear and tear, the movement gap between the pin and the fixed plate gradually increases, and the user cannot replace the worn fixed plate, leading to instability of the hook during the locking process of the container.

[0018] 2. By setting a sliding element between the pin mechanism and the mounting panel, the sliding element can provide a smoother movement track for the pin mechanism, which helps to reduce the friction generated by the pin mechanism during movement, thus reducing wear and effectively extending the service life of the device.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the connection between the box assembly of this utility model and the compressor and the box body respectively;

[0021] Figure 2 This is a schematic diagram of the locked state of the box-holding mechanism of this utility model.

[0022] Figure 3 for Figure 2 Cross-sectional view along line AA;

[0023] Figure 4 for Figure 2 Cross-sectional view along line BB;

[0024] Figure 5 This is a schematic diagram of the unlocked state of the box-holding mechanism of this utility model. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1 to 5 The shown is a case-holding mechanism with a case-pulling function, including a case-holding assembly 3 for connecting the case body 1 and the compressor 2. The case-holding assembly 3 includes a mounting panel 31 located on one side of the compressor 2, a hook 32 for locking the case body 1, and a pin mechanism 4. The hook 32 is movably connected to the mounting panel 31 through the pin mechanism 4, and a detachable sliding member is provided between the pin mechanism 4 and the mounting panel 31.

[0027] This utility model, by setting up an installation panel, a hook component, and a pin mechanism, allows the hook component to be movably connected to the installation panel via the pin mechanism. A detachable sliding component is provided between the pin mechanism and the installation panel, which helps avoid direct contact between the pin mechanism and the installation panel. When the pin mechanism or sliding component is damaged due to prolonged use, the user can easily replace it without replacing the installation panel. This effectively solves the problem in existing garbage trucks where the hook is connected to a fixed plate welded to the compressor via a pin. However, during long-term use, due to wear and tear, the movement gap between the pin and the fixed plate gradually increases, and the user cannot replace the worn fixed plate, leading to instability of the hook during the locking process of the container.

[0028] Furthermore, by providing a sliding member between the pin mechanism 4 and the mounting panel 31, the sliding member can provide a smoother motion track for the pin mechanism 4, which helps to reduce the friction generated by the pin mechanism 4 during movement, thus reducing wear and effectively extending the service life of the device.

[0029] Optionally, in some embodiments, the mounting panel 31 is fixed to one side of the compressor 2 by means of a threaded connection.

[0030] Furthermore, as a preferred embodiment of this invention and not a limitation thereof, the mounting panel 31 is welded to one side of the compressor 2.

[0031] Optionally, the sliding member includes a slide seat 51 that is detachably connected to the mounting panel 31, and the pin mechanism 4 is able to move along the extension direction of the slide seat 51. The slide seat 51 can be fixed between the mounting panel 31 and the pin mechanism 4 by means of snap-fit ​​connection, slot connection, or locking connection.

[0032] Preferably, the slide seat 51 is fixed to the mounting panel 31 by means of a threaded connection.

[0033] Optionally, the sliding element includes a rolling bearing 52 located between the mounting panel 31 and the pin mechanism 4. Compared with the traditional sliding friction between the pin and the fixed plate, the rolling bearing provides rolling friction with lower friction force. This reduces friction force and helps reduce wear between the pin mechanism 4 and the mounting panel 31, thus extending the service life of the device.

[0034] like Figures 1 to 5 The mounting panel 31 shown is provided with a sliding groove 311 that penetrates the mounting panel 31, and the sliding member is located between the inner wall of the sliding groove 311 and the outer wall of the pin mechanism 4;

[0035] Furthermore, the sliding groove 311 provides a clear motion track for the pin mechanism 4, so that the pin mechanism 4 can maintain a stable motion trajectory when moving relative to the mounting panel 31. The arrangement of the sliding member between the inner wall of the sliding groove 311 and the outer wall of the pin mechanism 4 helps to enhance the guiding nature of the pin mechanism 4 and ensures that the pin mechanism 4 can move smoothly along the predetermined path.

[0036] Furthermore, the cooperative arrangement of the sliding groove 311 and the sliding component can effectively reduce the direct contact area between the pin mechanism 4 and the mounting panel 31, thereby reducing friction.

[0037] like Figures 1 to 5 The sliding groove 311 shown includes a first sliding groove 3111, the pin mechanism 4 includes a first pin 41 hinged to the hook member 32, and the sliding member includes a sliding groove seat 51 located between the inner wall of the first sliding groove 3111 and the outer wall of the first pin 41.

[0038] Furthermore, by setting the first sliding groove 3111 and the corresponding sliding groove seat 51, it is beneficial to ensure that the first pin 41 maintains the correct direction and position during movement, which helps to enhance the stability and operational accuracy of the entire mechanism.

[0039] Furthermore, the sliding seat 51 reduces the direct contact between the first pin 41 and the mounting panel 31, thereby reducing the coefficient of friction and frictional resistance, reducing wear, and extending the service life of the component.

[0040] Furthermore, the detachable design of the slide block 51 simplifies the maintenance and replacement process. When the slide block 51 needs to be replaced or repaired, operators can quickly disassemble and install it, which helps reduce maintenance time and complexity and effectively lower maintenance costs.

[0041] like Figures 1 to 5 The slide seat 51 shown is arranged along the extension direction of the first sliding groove 3111 and is threadedly connected to the first sliding groove 3111. The cross-section of the first sliding groove 3111 is in the shape of a "I".

[0042] Specifically, the threaded connection between the slide seat 51 and the first sliding groove 3111 helps to ensure a tight fit between the two. The threaded connection has high strength and stability and can withstand large forces and torques, thereby ensuring the stability and reliability of the first pin 41 during movement. Due to the characteristics of the threaded connection, the slide seat 51 can be firmly fixed in the first sliding groove 3111 and is not easy to fall off or loosen, which helps to reduce the failure rate caused by loose parts.

[0043] Furthermore, the first sliding groove 3111 is arranged horizontally along the mounting panel 31 and is in the shape of an "I".

[0044] like Figures 1 to 5 The sliding groove 311 shown includes a second sliding groove 3112, the pin mechanism 4 includes a second pin 42 located at the end of the hook member 32 and hinged to the hook member 32, and the sliding member includes a rolling bearing 52 located between the inner wall of the second sliding groove 3112 and the outer wall of the second pin 42.

[0045] Furthermore, the rolling bearing 52 can significantly reduce the friction of the second pin 42 in the second sliding groove 3112. The rolling bearing 52 replaces sliding friction with rolling friction, which greatly reduces the coefficient of friction, so that the second pin 42 moves more smoothly and reduces wear and energy loss caused by friction.

[0046] Furthermore, the rolling bearing 52 has a high load-bearing capacity and can maintain good performance under high-load working conditions. The mechanical force generated by the second pin 42 during the locking or unlocking of the housing can be evenly distributed through the rolling bearing 52, which helps to reduce structural deformation and damage caused by concentrated loads.

[0047] Furthermore, the detachable design of the rolling bearing 52 simplifies the maintenance and replacement process. When the rolling bearing 52 needs to be replaced or repaired, operators can quickly disassemble and install it, which helps reduce maintenance time and complexity and effectively lowers maintenance costs.

[0048] like Figures 1 to 5 The second sliding groove 3112 shown is inclined and extends away from the hook member 32;

[0049] Furthermore, the inclined second sliding groove 3112 helps to improve the ease of operation. Due to the inclined direction of the second sliding groove 3112, the user can more smoothly complete the opening and closing action when operating the hook 32, which helps to reduce resistance and inconvenience during operation.

[0050] like Figures 1 to 5 The box assembly 3 shown also includes a box cylinder 33 located on one side of the compressor 2 and a connecting rod mechanism 34 located between the box cylinder 33 and the hook 32. The box cylinder 33 drives the connecting rod mechanism 34 to move the hook 32 relative to the mounting panel 31 so that the hook 32 can lock or unlock the box 1.

[0051] Furthermore, the box-holding cylinder 33 drives the hook component 32 to move through the driving connecting rod mechanism 34. This transmission method has the characteristics of smooth movement and low impact, which helps to reduce vibration and noise during movement and improve the operating quality of the equipment. As a transmission medium, the connecting rod mechanism 34 can disperse and buffer the power generated by the box-holding cylinder 33, reduce the direct force on the hook component 32, help extend the service life of the hook component 32, and improve the reliability of the entire box-holding assembly 3.

[0052] Furthermore, the hydraulic cylinder 33 enables automated operation of locking and unlocking the box by the hook 32. Operators can remotely or automatically control the hydraulic cylinder 33, which helps to reduce the complexity and intensity of manual operation and effectively improves operating efficiency and safety.

[0053] like Figures 1 to 5 The connecting rod mechanism 34 shown includes a connecting rod 341, and the pin mechanism 4 includes a third pin 43 and a fourth pin 44. The connecting rod 341 and the output end of the holding cylinder 33 are hinged through the third pin 43, and the connecting rod 341 and the mounting panel 31 are hinged through the fourth pin 44.

[0054] Furthermore, the connecting rod 341 is hinged to the output end of the gearbox cylinder 33 via the third pin 43 and to the mounting panel 31 via the fourth pin 44, which helps to improve the stability of the connecting rod 341 during operation. This configuration can withstand greater forces and torques, ensuring that the connecting rod 341 will not be damaged or fail due to excessive force during operation.

[0055] like Figures 1 to 5 The connecting rod mechanism 34 shown includes a push-pull rod 342 located between the connecting rod 341 and the hook member 32. The pin mechanism 4 includes a fifth pin 45. One side of the push-pull rod 342 is hinged to the connecting rod 341 through the fifth pin 45, and the other side of the push-pull rod 342 is hinged to the hook member 32 through the second pin 42.

[0056] Specifically, the push-pull rod 342 is designed to enhance the efficiency of force transmission. Through the hinge of the fifth pin 45 and the second pin 42, the push-pull rod 342 can more effectively transmit the thrust and pull of the holding cylinder 33 to the connecting rod 341 and the hook 32, which helps to reduce force loss and effectively improve the overall efficiency of the system.

[0057] like Figures 1 to 5 The cylinder support 331 for mounting the cylinder 33 is provided between the cylinder 33 and the compressor 2. The pin mechanism 4 also includes a sixth pin 46, and the cylinder 33 is hinged to the cylinder support 331 through the sixth pin 46.

[0058] Furthermore, the installation of the cylinder support 331 and the sixth pin 46 helps to enhance the stability of the device. Through the hinged connection, the box-holding cylinder 33 can maintain a stable working state, which helps to reduce the displacement and offset of the box-holding cylinder 33 caused by vibration and impact, and ensures the stability of the box-holding cylinder 33 during operation.

[0059] Furthermore, the setting of the sixth pin 46 helps to simplify the installation process between the box-holding cylinder 33 and the cylinder support 331, eliminating the need for complex welding or bolt connections. When the box-holding cylinder 33 or the cylinder support 331 malfunctions or is damaged, the user can easily disassemble it for replacement or repair, which helps to reduce maintenance costs and difficulty.

[0060] Workflow:

[0061] When the hook 32 needs to lock the housing 1, the output end of the clamping cylinder 33 extends toward the mounting panel 31. The clamping cylinder 33 drives the connecting rod 341 to rotate around the fourth pin 44. The end of the connecting rod 341 that is hinged to the push-pull rod 342 swings toward the clamping cylinder 33. The connecting rod 341 drives the push-pull rod 342 to move toward the fourth pin 44. The push-pull rod 342 is hinged to the hook 32 through the second pin 42. The push-pull rod 342 drives the second pin 42 to move away from the first sliding groove 3111. The first pin 41 is located in the sliding groove seat 5. 1. The side closest to the container 1 gradually moves towards the direction of the second sliding groove 3112, and the hook 32 closes towards the side of the container 1, locking the container 1. At this time, the first pin 41, the second pin 42 and the fourth pin 44 are located at the dead point position that is close to a straight line, which helps to enhance the positioning and stability of the hook 32. The dead point position makes the hook 32 almost unable to move when locked, which helps to ensure the firm fixation of the container 1, helps to reduce the force on the container cylinder 33 during the garbage compression process, and effectively improves the service life of the container cylinder 33.

[0062] When the hook 32 needs to unlock the housing 1, the output end of the holding cylinder 33 moves away from the mounting panel 31. The holding cylinder 33 drives one side of the connecting rod 341 to move closer to the holding cylinder 33. The middle part of the connecting rod 341 rotates around the fourth pin 44. The end of the connecting rod 341 that is hinged to the push-pull rod 342 swings away from the holding cylinder 33. The push-pull rod 342 pushes the second pin 42 to move away from the fourth pin 44. The first pin 41 located on the side of the slide seat 51 away from the housing 1 gradually moves closer to the housing 1. The hook 32 opens and closes to the side away from the housing 1, unlocking the housing 1.

[0063] The implementation method of Example 1 is as follows:

[0064] A case-holding mechanism with a case-pulling function includes a case-holding assembly 3 for connecting a case body 1 and a compressor 2. The case-holding assembly 3 includes a mounting panel 31 welded to one side of the compressor 2, a hook 32 for locking the case body 1, and a pin mechanism 4. The mounting panel 31 has a sliding groove 311 penetrating the mounting panel 31. The sliding groove 311 includes a first sliding groove 3111 and a second sliding groove 3112. The pin mechanism 4 includes a first pin 41 and a second pin 42 respectively hinged to the hook 32. The sliding member includes a sliding groove seat 51 and a rolling bearing 52. The sliding groove seat 51 is fixed to the mounting panel 31 by a threaded connection and is located between the inner wall of the first sliding groove 3111 and the outer wall of the first pin 41. The rolling bearing 52 is located between the inner wall of the second sliding groove 3112 and the outer wall of the second pin 42. A sliding groove seat 51 is provided between the first pin 41 and the second sliding groove 3112, and a rolling bearing 52 is provided between the second pin 42 and the second pin 41. This helps to avoid direct contact between the first pin 41 and the second pin 42 and the mounting panel 31. When the sliding groove seat 51 and the first pin 41, or the second pin 42 and the rolling bearing 52 are damaged due to long-term use, the user can easily replace and repair the sliding groove seat 51, the first pin 41, the second pin 42 and the rolling bearing 52 without replacing the mounting panel 31. This effectively solves the problem that the hook on the existing garbage truck is connected to the fixed plate welded to the compressor by the pin. However, during long-term use, due to wear and tear, the movement gap between the pin and the fixed plate gradually increases, and the user cannot replace the worn fixed plate, resulting in instability of the hook during the locking of the container. In addition, the arrangement of the slide seat 51 and the rolling bearing 52 can provide a smoother movement track for the first pin 41 and the second pin 42, which helps to reduce the friction generated by the first pin 41 and the second pin 42 during movement, thus helping to reduce wear and effectively extend the service life of the device.

[0065] The implementation method of Example 2 is as follows:

[0066] The difference between Embodiment 2 and Embodiment 1 is that: the first sliding groove 3111 is provided with a sliding groove seat 51, and the sliding member also includes a rolling bearing 52 located between the inner wall of the sliding groove seat 51 and the outer wall of the first pin 41. The outer walls of the first pin 41 and the second pin 42 are both provided with rolling bearings 52. The first pin 41 is tactilely connected to the sliding groove seat 51 through the rolling bearing 52, and the second pin 42 is tactilely connected to the inner wall of the second sliding groove 3112 through the rolling bearing 52.

[0067] The implementation method of Example 3 is as follows:

[0068] The difference between Embodiment 3 and Embodiment 1 is that: both the first sliding groove 3111 and the second sliding groove 3112 are provided with a sliding groove seat 51, the first pin 41 is slidably connected to the sliding groove seat 51, and the second pin 42 is slidably connected to the sliding groove seat 51 through a rolling bearing 52.

[0069] The implementation method of Example 4 is as follows:

[0070] The difference between Embodiment 4 and Embodiment 1 is that the sliding member includes a sliding groove seat 51 and a rolling bearing 52. The first sliding groove 3111 and the second sliding groove 3112 are both provided with sliding groove seats 51, and the outer walls of the first pin 41 and the second pin 42 are both provided with rolling bearings 52. The first pin 41 is rolledly connected to the sliding groove seat 51 on the first sliding groove 3111 through the rolling bearing 52, and the second pin 42 is rolledly connected to the sliding groove seat 51 on the second sliding groove 3112 through the rolling bearing 52.

[0071] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A case-holding mechanism with a case-pulling function, comprising a case-holding assembly (3) for connecting the case body (1) and the compressor (2), characterized in that: The box holding assembly (3) includes a mounting panel (31) on one side of the compressor (2), a hook member (32) for locking the box body (1), and a pin shaft mechanism (4). The hook member (32) is movably connected to the mounting panel (31) through the pin shaft mechanism (4), and a sliding member with a detachable connection is provided between the pin shaft mechanism (4) and the mounting panel (31).

2. A luggage-carrying mechanism with a luggage-pulling function according to claim 1, characterized in that: A sliding groove (311) penetrating the mounting panel (31) is provided on the mounting panel (31), and the sliding member is located between the inner wall of the sliding groove (311) and the outer wall of the pin shaft mechanism (4).

3. A luggage-carrying mechanism with a luggage-pulling function according to claim 2, characterized in that: The sliding groove (311) includes a first sliding groove (3111), the pin shaft mechanism (4) includes a first pin shaft (41) hinged to the hook member (32), and the sliding member includes a chute seat (51) located between the inner wall of the first sliding groove (3111) and the outer wall of the first pin shaft (41).

4. A luggage-carrying mechanism with a luggage-pulling function according to claim 3, characterized in that: The chute seat (51) is arranged along the extending direction of the first sliding groove (3111) and is threadedly connected to the first sliding groove (3111), and the cross-section of the first sliding groove (3111) is in a "one" shape.

5. A luggage-carrying mechanism with a luggage-pulling function according to claim 3, characterized in that: The sliding groove (311) includes a second sliding groove (3112), the pin shaft mechanism (4) includes a second pin shaft (42) located at the end of the hook member (32) and hinged to the hook member (32), and the sliding member includes a rolling bearing (52) located between the inner wall of the second sliding groove (3112) and the outer wall of the second pin shaft (42).

6. A luggage-carrying mechanism with a luggage-pulling function according to claim 5, characterized in that: The second sliding groove (3112) extends obliquely away from the hook member (32).

7. A luggage-carrying mechanism with a luggage-pulling function according to claim 5, characterized in that: The box holding assembly (3) further includes a box holding oil cylinder (33) on one side of the compressor (2) and a connecting rod mechanism (34) between the box holding oil cylinder (33) and the hook member (32). The box holding oil cylinder (33) drives the connecting rod mechanism (34) to带动 the hook member (32) to move relative to the mounting panel (31) so that the hook member (32) can lock or unlock the box body (1).

8. A luggage-carrying mechanism with a luggage-pulling function according to claim 7, characterized in that: The connecting rod mechanism (34) includes a connecting rod (341), the pin shaft mechanism (4) includes a third pin shaft (43) and a fourth pin shaft (44), the connecting rod (341) and the output end of the box holding oil cylinder (33) are hinged through the third pin shaft (43), and the connecting rod (341) and the mounting panel (31) are hinged through the fourth pin shaft (44).

9. A luggage-carrying mechanism with a luggage-pulling function according to claim 8, characterized in that: The connecting rod mechanism (34) includes a push rod (342) between the connecting rod (341) and the hook member (32), the pin shaft mechanism (4) includes a fifth pin shaft (45), one side of the push rod (342) is hinged to the connecting rod (341) through the fifth pin shaft (45), and the other side of the push rod (342) is hinged to the hook member (32) through the second pin shaft (42).

10. A luggage-carrying mechanism with a luggage-pulling function according to claim 7, characterized in that: A cylinder support (331) for mounting the cylinder (33) is provided between the cylinder (33) and the compressor (2). The pin mechanism (4) also includes a sixth pin (46). The cylinder (33) is hinged to the cylinder support (331) through the sixth pin (46).

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