A vehicle file cabinet roller blind retractor

Abstract

The utility model relates to vehicle storage equipment technical field, specifically disclose a vehicle file cabinet roller shutter retractor, including the card seat (1), front shell (2), the card sleeve (3), rear shell (4), the toothing sleeve (5), pull rope (6), volute spring (7), step shaft (8) and pinion (9), the utility model design science, simple structure, can accurate control roller shutter movement speed, adjust convenient, make the closing terminal speed control in the appropriate range, and the opening resistance fluctuation is stable, effectively solved the existing roller shutter closing speed fast, the problem of easy collision, reliable, significantly improved the use security of file cabinet and the operation flatness.

Description

Technical Field

[0001] This utility model relates to the field of vehicle storage equipment technology, and in particular to a vehicle file cabinet roll-up retractor. Background Technology

[0002] Currently, most truck-mounted filing cabinets use a roller shutter structure to open and close the cabinet doors. This roller shutter structure typically includes a roller shutter and sliding rails on both sides of the filing cabinet body, allowing the roller shutter to slide up and down along the rails. However, existing roller shutter structures have some problems in use. Due to the lack of an effective cushioning device, the roller shutter closes too quickly, easily colliding with the filing cabinet body. This not only generates significant noise but may also cause documents inside the filing cabinet to scatter, or even damage the filing cabinet or the roller shutter, affecting its usability and lifespan. Summary of the Invention

[0003] The purpose of this utility model is to provide a vehicle file cabinet roller shutter retractor to address the aforementioned practical situation.

[0004] The technical solution adopted in this utility model is as follows: A vehicle filing cabinet roller shutter retractor includes a card holder, a front shell, a card sleeve, a rear shell, a toothed sleeve, a pull rope, a coil spring, a stepped shaft, a pinion, and a main shaft. The toothed sleeve includes an integral inner sleeve, a toothed plate, and a side plate. The toothed sleeve has a sleeve hole in the middle and a coil spring chamber corresponding to the coil spring. The inner sleeve has a card hole. The toothed plate and the side plate are located on the front and rear sides of the inner sleeve, respectively. The card holder has a hook and a mounting hole. The front shell has a first card hole, a mounting hole, and a sleeve shaft, and a buckle on the side. A buckle is provided corresponding to the hook of the card holder. The sleeve shaft has a slot in the middle. The rear shell has a sleeve in the middle corresponding to the sleeve shaft of the front shell, a second card hole corresponding to the first card hole of the front shell, and a snap corresponding to the buckle of the front shell.

[0005] Furthermore, the card holder is fixedly engaged with the front housing by a hook, and the pinion is movably fitted on the stepped shaft and fixed to the card holder together through the mounting hole of the card holder.

[0006] Furthermore, the gear sleeve is movably mounted on the sleeve shaft of the front housing through the sleeve hole, and its gear plate and pinion mesh with each other through their respective straight teeth.

[0007] Furthermore, the coil spring 7 is installed in the coil spring chamber of the gear sleeve, with one end fixedly clamped in the groove of the sleeve shaft of the front housing, and the other end fixedly clamped in the hole of the inner sleeve of the gear sleeve.

[0008] Furthermore, the rear shell and the front shell are fixedly connected together by a snap-fit ​​and a buckle, respectively. The sleeve with a rope hole is fixed in the snap-fit ​​hole formed by the snap-fit ​​hole one of the front shell and the snap-fit ​​hole two of the rear shell. The sleeve of the rear shell is abutted against the outer peripheral end of the sleeve shaft.

[0009] Furthermore, the pull rope loop is wrapped around the outer circumference of the inner sleeve of the toothed sleeve, with one end connected to the locking hole of the inner sleeve, and the other end pulled out through the rope hole of the locking sleeve from the cavity formed by the rear shell and the front shell.

[0010] This utility model of a vehicle file cabinet roller shutter retractor is scientifically designed and has a simple structure. It can precisely control the movement speed of the roller shutter, and is easy to adjust, so that the closing speed is controlled within a suitable range. The opening resistance fluctuation is stable, which effectively solves the problems of existing roller shutters closing too fast and being prone to collision. It is reliable and significantly improves the safety and smoothness of use of the file cabinet. Attached Figure Description

[0011] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0012] Figure 1 This is a three-dimensional exploded view of the vehicle file cabinet roller shutter retractor of this utility model; Figure 2 This is a three-dimensional schematic diagram of the present invention; Figure 3 This is a plan view of the present invention; Figure 4 for Figure 3 AA sectional view; Figure 5 This is a three-dimensional schematic diagram of the front shell part of this utility model; Figure 6 This is a three-dimensional schematic diagram of the toothed sleeve part of this utility model; Figure 7 This is a three-dimensional schematic diagram of the component installation of this utility model; Among them, 1-card seat; 1A-card hook; 2-front shell; 2A-card hole one; 2B-clasp; 2C-mounting hole; 2D-sleeve shaft; 2E-card groove; 2F-clasp; 3-card sleeve; 4-rear shell; 4A-sleeve hole; 4B-card hole two; 4C-bayonet; 5-gear sleeve; 5A-inner sleeve; 5B-gear plate; 5C-card hole; 5D-side plate; 5E-sleeve hole; 6-pull rope; 7-coil spring; 8-step shaft; 9-pinion. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model. Key terms that need attention in these descriptions, including "tooth sleeve," "sleeve hole," "spring chamber," and "shell," are simply customary names used for ease of description and to simplify the description; therefore, they should not be construed as limitations on this utility model.

[0014] like Figure 1-3 As shown, this utility model relates to a vehicle file cabinet roller shutter retractor, used in vehicle storage (warehouse) equipment. It includes a card holder 1, a front shell 2, a card sleeve 3, a rear shell 4, a gear sleeve 5, a pull rope 6, a coil spring 7, a stepped shaft 8, and a pinion 9. (See also...) Figure 6 The toothed sleeve 5 includes an integral inner sleeve 5A, a toothed plate 5B, and a side plate 5D. The toothed sleeve 5 has a sleeve hole 5E in the middle and a spring chamber corresponding to the coil spring 7. The inner sleeve 5A has a locking hole 5C. The toothed plate 5B and the side plate 5D are located on the front and rear sides of the inner sleeve 5A, respectively. The locking seat 1 has a locking hook 1A and a mounting hole. (See attached image) Figure 5 The front shell 2 has a first locking hole 2A, a mounting hole 2C, and a sleeve shaft 2D, and a buckle 2F on its edge. A buckle 2B is provided corresponding to the hook 1A of the locking seat 1. A locking groove 2E is provided in the middle of the sleeve shaft 2D. The rear shell 4 has a shell sleeve 4A in the middle corresponding to the sleeve shaft 2D of the front shell 2, and a second locking hole 4B corresponding to the first locking hole 2A of the front shell 2. It also has a locking opening 4C corresponding to the buckle 2F of the front shell 2. (See also...) Figure 7 Furthermore, the card holder 1 is fixedly engaged with the buckle 2B of the front shell 2 via the hook 1A. The pinion 9 is movably fitted onto the stepped shaft 8 and fixed to the card holder 1 via the mounting hole of the card holder 1. Furthermore, the gear sleeve 5 is movably mounted on the sleeve shaft 2D of the front shell 2 via the sleeve hole 5E. Its gear plate 5B and the pinion 9 mesh with each other through their respective straight teeth to form a gear mechanism. Furthermore, the coil spring 7 is installed in the coil spring chamber of the gear sleeve 5, with one end fixedly engaged in the slot 2E of the sleeve shaft 2D of the front shell 2, and the other end fixedly engaged in the slot 5C of the inner sleeve 5A of the gear sleeve 5, forming a coil spring mechanism. Furthermore, the rear shell 4 and the front shell 2 are fixedly engaged together via the buckle 2F and the snap fastener 4C, respectively. The card sleeve 3 with the rope hole is fixedly clamped in the slot formed by the first slot 2A of the front shell 2 and the second slot 4B of the rear shell 4. See also Figure 4 The sleeve 4A of the rear shell 4 is abutted against the outer peripheral end of the sleeve shaft 2D, so that the toothed sleeve 5 and the coil spring 7 have a suitable axial clearance. Furthermore, the pull rope 6 is wrapped around the outer periphery of the inner sleeve 5A of the toothed sleeve 5, one end is connected to the locking hole 5C of the inner sleeve 5A, and the other end is pulled out from the cavity formed by the rear shell 4 and the front shell 2 through the rope hole of the locking sleeve 3.

[0015] This utility model of a vehicle filing cabinet roller shutter retractor is fixedly installed on the vehicle body, with the other end of the pull rope 6 fixedly connected to the end of the roller shutter. When closing the roller shutter, a damping force is first applied to the roller shutter through a gear mechanism with a large transmission ratio, followed by increased elastic damping force from the coil spring 7 to decelerate and buffer the roller shutter, reducing collisions and avoiding abnormal noises. Finally, the roller shutter door is locked by the locking structure on the roller shutter slide rail. When opening the roller shutter, this utility model of a vehicle filing cabinet roller shutter retractor pulls the roller shutter through the pull rope 6, assisting in opening the roller shutter and ensuring that the opening and closing of the roller shutter is smooth, effective, safe, and reliable. Three damping forces—increasing, constant, and decreasing—are provided at different stages of the roller shutter's opening and closing stroke. The mechanism included in this utility model can precisely control the movement speed of the roller shutter, keeping the closing terminal speed controlled at 0.1-0.3 m / s, with opening resistance fluctuations not exceeding 5N. This effectively solves the problems of existing roller shutters closing too quickly and being prone to collisions, significantly improving the safety and smoothness of operation of the filing cabinet.

[0016] The above description is only a general embodiment of this utility model. For those skilled in the art, there are various other embodiments with modifications and variations, which will not be elaborated here. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model are included within the protection scope claimed by this utility model.

Claims

1. A vehicle filing cabinet roller shutter retractor, comprising a card holder (1), a front shell (2), a card sleeve (3), a rear shell (4), a gear sleeve (5), a pull rope (6), a coil spring (7), a stepped shaft (8), and a pinion (9), characterized in that: The toothed sleeve (5) includes an integral inner sleeve (5A), a toothed piece (5B), and a side piece (5D). The toothed sleeve (5) has a sleeve hole (5E) in the middle and a spring chamber corresponding to the coil spring (7). The inner sleeve (5A) has a locking hole (5C). The toothed piece (5B) and the side piece (5D) are located on the front and rear sides of the inner sleeve (5A), respectively. The locking seat (1) has a locking hook (1A) and a mounting hole. The front shell (2) has a locking hole (2A) and a mounting hole. The hole (2C) and the sleeve shaft (2D) are provided, and the edge is provided with a buckle (2F), and a buckle (2B) is provided corresponding to the buckle hook (1A) of the card seat (1). The sleeve shaft (2D) is provided with a card groove (2E) in the middle. The rear shell (4) is provided with a shell sleeve (4A) corresponding to the sleeve shaft (2D) of the front shell (2) in the middle, and a card hole (4B) is provided corresponding to the card hole one (2A) of the front shell (2). A buckle (4C) is also provided corresponding to the buckle (2F) of the front shell (2).

2. The vehicle filing cabinet roller shutter retractor according to claim 1, characterized in that: The card holder (1) is fixedly engaged with the buckle (2B) of the front shell (2) by the hook (1A), and the pinion (9) is loosely fitted on the stepped shaft (8) and fixed together on the card holder (1) through the mounting hole of the card holder (1).

3. The vehicle filing cabinet roller shutter retractor according to claim 1, characterized in that: The gear sleeve (5) is movably mounted on the sleeve shaft (2D) of the front housing (2) through the sleeve hole (5E), and its gear plate (5B) and pinion (9) mesh with each other through their respective straight teeth.

4. The vehicle filing cabinet roller shutter retractor according to claim 1, characterized in that: The coil spring (7) is installed in the coil spring chamber of the toothed sleeve (5), with one end fixedly clamped in the slot (2E) of the sleeve shaft (2D) of the front shell (2), and the other end fixedly clamped in the slot (5C) of the inner sleeve (5A) of the toothed sleeve (5).

5. A vehicle filing cabinet roller shutter retractor according to claim 1, characterized in that: The rear shell (4) and the front shell (2) are fixedly connected together by a buckle (4C) and a snap (2F). The sleeve (3) with a rope hole is fixedly clamped in the buckle hole formed by the buckle hole one (2A) of the front shell (2) and the buckle hole two (4B) of the rear shell (4). The shell sleeve (4A) of the rear shell (4) is abutted against the outer peripheral end of the sleeve shaft (2D).

6. The vehicle filing cabinet roller shutter retractor according to claim 1, characterized in that: The pull rope (6) is wrapped around the outer circumference of the inner sleeve (5A) of the toothed sleeve (5), with one end connected to the locking hole (5C) of the inner sleeve (5A) and the other end pulled out from the cavity formed by the rear shell (4) and the front shell (2) through the rope hole of the locking sleeve (3).

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