Draw-bar box draw bar with anti-pinch safety function

Abstract

The utility model discloses a draw-bar box draw bar with an anti-pinch safety function, which comprises a draw-bar box, an arc-shaped groove is arranged at the upper end of the draw-bar box, a support plate is tightly attached to the side surface of the draw-bar box, and the draw-bar box draw bar with the anti-pinch safety function is in threaded connection with the draw-bar box by clamping the support plate on the outer side of a screw and rotating and screwing the screw. The supporting cylinder is convenient to fixedly mount, a user can straddle the surface of the cushion by tightly attaching a side anti-skid pad of the draw-bar box to the ground, the use function of the draw-bar box is increased, the pull rod is conveniently driven to be dismounted and replaced by rotating the loosening screw, enabling the supporting plate to lose constraint and downwards moving the supporting cylinder, and the pull rod is dismounted by rotating the bolt. After the handle is longitudinally moved to drive the pull rod to be longitudinally moved to a proper position, the bolt and the positioning pin are reset, the position of the handle is conveniently fixed, the positioning pin can be fastened and inserted into the pin hole through the design of the pin hole, the bolt and the positioning pin, and therefore the height position of the pull rod can be freely adjusted so that people of different heights can use the pull rod conveniently.

Description

Technical Field

[0001] This utility model relates to the technical field of trolley case devices, specifically a trolley case handle with anti-pinch safety function. Background Technology

[0002] A rolling suitcase is a type of luggage equipped with a pull handle and wheels. It is widely used due to its convenience. Rolling suitcases are further categorized by the pull handle: single-tube and double-tube handles are available. The handle itself can also be square or round, designed to facilitate dragging while walking and significantly reduce the burden on the rider.

[0003] Currently, the beneficial effects of the existing utility model are as follows: a U-shaped groove is provided between the two pull rod mounting holes at the corresponding positions of the pull rod mechanism, and the bottom surface and rear side surface of the groove have a gap between them and the corresponding surface of the pulled handle after it is closed, allowing fingers to pass through. This gap prevents fingers from being pinched when closing the pull rod and allows users to easily pass their fingers through to grasp the pull handle and pull it out. The pulling and closing operation of the pull rod mechanism is convenient and safe. Furthermore, when pulling the pull handle, users can, according to their usage habits, pass their fingers through the aforementioned gap from the bottom surface of the pull handle and the groove or the opening on the rear side surface of the pull handle and the groove to grasp the pull handle and complete the pulling action, making it extremely convenient to use.

[0004] For example, the travel trolley case with anti-hand-pinch protection for the pull rod disclosed in authorization announcement number CN201657899U includes a case body with symmetrical left and right pull rod mounting holes on both sides of the rear top surface, and a pull rod mechanism mounted on the case body. The pull rod mechanism includes retractable left and right pull rods installed in the corresponding mounting holes and a pull handle fixed between the top ends of the left and right pull rods. The key feature is that a groove with a generally U-shaped longitudinal section is recessed on the upper part of the rear side of the case body between the left and right pull rod mounting holes. The bottom surface of the groove is located below the top surface of the mounting hole, and the inner surface is located in the inner rear part of the mounting hole. The pull handle of the pull rod mechanism, when retracted, has a distance between it and the bottom surface and rear side of the groove, respectively, allowing fingers to pass through. However, such a travel trolley case with anti-hand-pinch protection for the pull rod is inconvenient for quick removal of the pull rod for repair or replacement, and it is also inconvenient to adjust the height of the pull rod.

[0005] As can be seen from the solutions disclosed in the existing patent documents, it is inconvenient to quickly remove the tie rod for repair or replacement, and it is also inconvenient to adjust the height of the tie rod. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this utility model is to provide a trolley handle with anti-pinch safety function to solve the problems of inconvenience in quickly removing the handle for maintenance and replacement, and inconvenience in adjusting the height of the handle.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pull rod for a trolley case with anti-pinch safety function, comprising a trolley case, an arc-shaped groove at the upper end of the trolley case, a support plate tightly attached to the side of the trolley case, an installation groove inside the support plate, screws sleeved inside the support plate, support cylinders fixedly welded to both ends of the support plate, a connecting rod fixedly welded to the side of the support cylinder, a cushion fixedly adhered to one side of the trolley case, a pull rod slidably sleeved inside the support cylinder, a pin hole inside the pull rod, a limit block fixedly welded to the lower end of the pull rod, and a handle fixedly installed at the upper end of the pull rod.

[0008] Preferably, the mounting groove is fitted with a screw, one end of which is threaded to the pull rod box. By rotating the outer side of the support plate clamping screw and tightening the screw threaded to the pull rod box, the support cylinder can be easily fixed and installed.

[0009] Preferably, an anti-slip mat is fixedly adhered to one side of the suitcase. The anti-slip mat is made of rubber material. By placing the anti-slip mat on the side of the suitcase in close contact with the ground, the user can straddle the surface of the mat, increasing the functionality of the suitcase.

[0010] Preferably, the side of the suitcase is tightly attached to a support cylinder, and the side of the suitcase is tightly attached to a connecting rod. By rotating the loose screw, the support plate is freed from restraint, and the support cylinder moves downward, making it easy to remove and replace the pull rod.

[0011] Preferably, the support cylinder has a sliding sleeve limiting block inside, and a positioning pin is inserted inside the support cylinder. The arc groove design provides space for the user's hand and prevents the handle from squeezing the user's hand at the top of the suitcase after the pull rod retracts into the support cylinder.

[0012] Preferably, the inside of the support cylinder is connected by a bolt via a thread, and a locating pin is fixedly welded to one end of the bolt. By rotating the bolt to remove the pull rod, the handle can be moved longitudinally to a suitable position, after which the bolt and locating pin are reset, making it convenient to fix the position of the handle.

[0013] Preferably, a positioning pin is inserted inside the pull rod, and a positioning pin is inserted inside the pin hole. The design of the pin hole, bolt, and positioning pin allows the positioning pin to be securely inserted into the pin hole, thereby allowing the height of the pull rod to be adjusted arbitrarily for use by people of different heights.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model connects the support plate to the outside of the clamping screw by rotating and tightening the screw thread to the trolley case, which facilitates the fixed installation of the support cylinder. By placing the anti-slip pad on the side of the trolley case in close contact with the ground, the user can straddle the surface of the cushion, which increases the functionality of the trolley case. By rotating and loosening the screw, the support plate is unrestrained, and the support cylinder can be moved downwards, making it easy to remove and replace the pull rod. The arc groove design provides space for the user's hands and prevents the handle from squeezing the user's hands at the top of the trolley case after the pull rod retracts into the support cylinder.

[0016] 2. This utility model allows the pull rod to be removed by rotating the bolt. After the handle is moved longitudinally to the appropriate position, the bolt and positioning pin are reset, making it easy to fix the handle position. The design of the pin hole, bolt and positioning pin allows the positioning pin to be tightly inserted into the pin hole, so that the height position of the pull rod can be adjusted arbitrarily for use by people of different heights. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged perspective view of the support plate of this utility model;

[0019] Figure 3 This is a perspective view of the seat cushion of this utility model;

[0020] Figure 4 This is a perspective view of the pull rod of this utility model;

[0021] Figure 5 This is an enlarged perspective view of the positioning pin of this utility model.

[0022] In the diagram: 1. Luggage, 11. Arc groove, 12. Support plate, 13. Mounting groove, 14. Screw, 15. Support cylinder, 16. Connecting rod, 17. Seat cushion, 18. Anti-slip mat, 2. Pull rod, 21. Pin hole, 22. Limiting block, 23. Handle, 24. Bolt, 25. Positioning pin. Detailed Implementation

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

[0024] Please see Figure 1-5The illustration shows a trolley handle with anti-pinch safety function, including a trolley case 1. The upper end of the trolley case 1 is provided with an arc groove 11. The side of the trolley case 1 is closely attached to a support plate 12. The inside of the support plate 12 is provided with an installation groove 13. The inside of the support plate 12 is fitted with screws 14. The two ends of the support plate 12 are fixedly welded to support cylinders 15. The side of the support cylinder 15 is fixedly welded to a connecting rod 16. A cushion 17 is fixedly glued to one side of the trolley case 1. The design of the cushion 17 can improve the user's sitting comfort. A pull rod 2 is slidably sleeved inside the support cylinder 15. The inside of the pull rod 2 is provided with a pin hole 21. The lower end of the pull rod 2 is fixedly welded to a limit block 22. The upper end of the pull rod 2 is fixedly installed with a handle 23.

[0025] To facilitate the replacement of the pull rod 2, a screw 14 is fitted inside the mounting slot 13. One end of the screw 14 is threaded to the pull case 1. By rotating the support plate 12 to tighten the screw 14, the pull case 1 is connected to the threaded connection, facilitating the installation of the support cylinder 15. An anti-slip pad 18 is fixedly adhered to one side of the pull case 1. The anti-slip pad 18 is made of rubber and is designed to prevent the pull case 1 from sliding. By placing the anti-slip pad 18 on the side of the pull case 1 in close contact with the ground, the user can straddle the surface of the cushion 17, increasing the functionality of the pull case 1. The support cylinder 15 and the connecting rod 16 are attached to the side of the pull case 1. By rotating and loosening the screw 14, the support plate 12 is released, and the support cylinder 15 moves downward, facilitating the removal and replacement of the pull rod 2.

[0026] To facilitate adjustment of the height of the pull rod 2 for use by people of different heights, a limiting block 22 is slidably fitted inside the support cylinder 15. A positioning pin 25 is inserted inside the support cylinder 15. The arc groove 11 is designed to provide space for the user's hand, preventing the handle 23 from squeezing the user's hand against the upper end of the pull rod case 1 after the pull rod 2 retracts into the support cylinder 15. A bolt 24 is threaded inside the support cylinder 15, and a positioning pin 25 is fixedly welded to one end of the bolt 24. By rotating the bolt 24 to remove the pull rod 2, the handle 23 can be moved longitudinally to move the pull rod 2 to a suitable position. After that, the bolt 24 and the positioning pin 25 return to their original positions, making it easy to fix the position of the handle 23. The positioning pin 25 is inserted inside the pull rod 2, and the positioning pin 25 is also inserted inside the pin hole 21. The design of the pin hole 21, bolt 24, and positioning pin 25 allows the positioning pin 25 to be tightly inserted into the pin hole 21, thereby allowing the height of the pull rod 2 to be adjusted arbitrarily for use by people of different heights.

[0027] The anti-pinch safety function of this trolley case handle allows for easy installation of the support cylinder 15 by rotating the screw 14 on the outside of the support plate 12 and tightening the screw 14. The anti-slip pad 18 on the side of the trolley case 1 allows the user to straddle the surface of the cushion 17, enhancing the functionality of the trolley case 1. By loosening the screw 14, the support plate 12 is released, allowing the support cylinder 15 to move downwards, facilitating the removal and replacement of the handle 2. The arc-shaped groove 11 provides space for the user's hands, preventing the handle 23 from pressing against the upper part of the trolley case 1 when the handle 23 retracts into the support cylinder 15. Removing the handle 2 by rotating the bolt 24 allows the handle 23 to be moved longitudinally to a suitable position, after which the bolt 24 and positioning pin 25 reset, facilitating the fixation of the handle 23. The design of the pin hole 21, bolt 24, and positioning pin 25 allows the positioning pin 25 to securely engage with the pin hole 21, enabling the height of the handle 2 to be adjusted arbitrarily for use by people of different heights.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trolley handle with anti-pinch safety function, comprising a trolley case (1), characterized in that: The upper end of the trolley case (1) is provided with an arc groove (11). The side of the trolley case (1) is closely attached to a support plate (12). The inside of the support plate (12) is provided with an installation groove (13). The inside of the support plate (12) is fitted with a screw (14). The two ends of the support plate (12) are fixedly welded with support cylinders (15). The side of the support cylinder (15) is fixedly welded with a connecting rod (16). A cushion (17) is fixedly glued to one side of the trolley case (1). A pull rod (2) is slidably fitted inside the support cylinder (15). The inside of the pull rod (2) is provided with a pin hole (21). The lower end of the pull rod (2) is fixedly welded with a limit block (22). The upper end of the pull rod (2) is fixedly installed with a handle (23).

2. The anti-pinch safety function of a trolley handle according to claim 1, characterized in that: The mounting slot (13) is internally fitted with a screw (14), one end of which is threadedly connected to the trolley case (1).

3. The anti-pinch safety function of a trolley handle according to claim 1, characterized in that: An anti-slip pad (18) is fixedly glued to one side of the suitcase (1), and the anti-slip pad (18) is made of rubber material.

4. The anti-pinch safety function of a trolley handle according to claim 1, characterized in that: The side of the trolley case (1) is attached to a support cylinder (15), and the side of the trolley case (1) is attached to a connecting rod (16).

5. The anti-pinch safety function of a trolley handle according to claim 1, characterized in that: The support cylinder (15) has a sliding sleeve limiting block (22) inside, and a positioning pin (25) is inserted inside the support cylinder (15).

6. The anti-pinch safety function of a trolley handle according to claim 1, characterized in that: The inside of the support cylinder (15) is connected by a bolt (24) via a thread, and a positioning pin (25) is fixedly welded to one end of the bolt (24).

7. The anti-pinch safety function of a trolley handle according to claim 1, characterized in that: The pull rod (2) has a positioning pin (25) inserted inside, and the pin hole (21) has a positioning pin (25) inserted inside.

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