Trolley for acetylene cylinder

Abstract

The utility model provides a trolley for an acetylene cylinder, which is convenient to support when a trolley frame is in a low-end upright grounding state so as to avoid overturning, toppling and shifting behind the trolley frame, is convenient for loading and unloading the acetylene cylinder, and relates to the technical field of trolleys. The trolley for the acetylene cylinder comprises an obliquely-arranged frame body, a supporting rod for grounding supporting is arranged at the high end of the frame body, the supporting rod comprises a first rod section and a second rod section, the upper end of the first rod section is connected with the frame body, and the upper end of the second rod section is in sliding connection with the lower end of the first rod section in the axis direction; when the lower end of the frame body is in an upright grounding state, the second rod section can slide relative to the axis of the first rod section, so that the lower end of the second rod section is supported on the ground; and a locking piece for locking the position of the second rod section is arranged on the first rod section. According to the utility model, the stability of the frame body can be better ensured, the acetylene cylinder can be conveniently loaded and unloaded, and the occurrence of safety accidents can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, specifically a handcart for acetylene cylinders. Background Technology

[0002] Acetylene is widely used in various welding and cutting processes, primarily for welding and cutting. However, due to its inherent hazards, acetylene cylinders pose significant risks during use. To ensure safety, tipping and collisions of the acetylene cylinders should be avoided. Since the location of the acetylene cylinders often needs to be moved during actual use, the cylinders must be handled gently and carefully to prevent accidents.

[0003] To facilitate the smooth handling and loading / unloading of acetylene cylinders, current acetylene cylinder trolleys typically employ an inclined frame. This allows the trolley frame to rotate around the roller axle to a low, upright, grounded position during loading and unloading. This eliminates the need to fully lift the cylinders before stacking them onto the trolley frame. While this design makes loading and unloading easier, it suffers from poor frame stability. Especially during single-person loading and unloading, the trolley frame is prone to tipping backward or shifting under stress, affecting cylinder handling and increasing the risk of accidents.

[0004] To ensure stable support for acetylene cylinders during use, some acetylene cylinder handcarts have support rods at the high end of the frame, such as the acetylene cylinder handcart disclosed in application number CN201820584468.3. However, when the handcart is flipped to a low, upright, grounded position, the support rods cannot contact the ground to support the frame, thus failing to adequately guarantee the stability of the handcart frame in this position and requiring further improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a handcart for acetylene cylinders that is easy to support when the cart frame is in a low, upright, and grounded state, so as to avoid the cart from tipping over, tilting, and shifting, thus facilitating the loading and unloading of acetylene cylinders.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an acetylene cylinder handcart, including an inclined frame, an acetylene cylinder slot provided on the frame along its inclined direction, a traveling wheel rotatably connected to the frame via an axle at the lower end of the frame, and a ground support rod at the upper end of the frame, the support rod including a first rod segment and a second rod segment, the upper end of the first rod segment being connected to the frame, the upper end of the second rod segment being slidably connected to the lower end of the first rod segment along the axial direction, and when the lower end of the frame is in an upright grounded state, the second rod segment can slide relative to the axis of the first rod segment so that the lower end of the second rod segment is supported on the ground;

[0007] The first segment is provided with a locking device for locking the position of the second segment.

[0008] Furthermore, the support rod is inclined and arranged in a figure-eight shape with the frame.

[0009] Furthermore, the locking element is a pin disposed on the first rod segment and engaged with the second rod segment.

[0010] Furthermore, the upper end of the first rod segment is hinged to the frame via a hinge axis that is horizontal and perpendicular to the frame, so that the lower end of the support rod can rotate around the hinge axis toward the lower end of the support rod, thereby reducing the distance between the lower end of the support rod and the lower end of the frame.

[0011] A pull rope is provided between the support rod and the frame for adjusting the distance between the lower end of the support rod and the lower end of the frame, and a rotatable drum is provided on the support rod for adjusting the length of the pull rope;

[0012] One end of the pull rope is connected to the frame, and the other end is wound around and fixed on the drum. The support rod is provided with a locking mechanism for locking the position of the drum to prevent the drum from rotating and causing the pull rope to lengthen.

[0013] Furthermore, the locking mechanism includes ratchet teeth and a mechanism sleeved and fixed to a ratchet wheel, wherein the ratchet teeth engage with the ratchet wheel.

[0014] Furthermore, a fire extinguisher placement cavity is provided on one side of the frame.

[0015] The beneficial effects of this utility model are as follows: The acetylene cylinder handcart of this utility model has a support rod set as a two-section axially sliding connection structure. When the lower end of the frame is in an upright grounded state, the second rod section can slide relative to the axis of the first rod section so that the lower end of the second rod section is supported on the ground. When the lower end of the frame is upright grounded, the frame can be supported by the support rod, and the frame is not easy to overturn, tip over or shift. This can better ensure the stability of the frame. There is no need to remove your hand to control the frame during loading and unloading. This not only facilitates the loading and unloading of acetylene cylinders, but also reduces the occurrence of safety accidents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of point A;

[0018] Figure 3 This is the right view of the present invention;

[0019] Figure 4 This is a schematic diagram illustrating the loading and unloading of acetylene cylinders according to this utility model;

[0020] The diagram shows: frame 1, wheels 2, axle 3, support rod 4, pull rope 5, locking device 7, drum 8, acetylene cylinder slot 11, fixing clip 12, fire extinguisher placement chamber 13, first rod section 41, second rod section 42, ratchet 61, and ratchet tooth 62. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Existing acetylene cylinder trolleys rely solely on the low-end ground support of the trolley frame for loading and unloading. Due to the trolley frame's height and the inclusion of backward-bending handles, its center of gravity is shifted rearward, making it prone to tipping over or shifting when the low-end support is on the ground. This not only affects loading and unloading efficiency but also increases the risk of accidents. Furthermore, in practice, acetylene cylinder loading and unloading is typically done by a single person, and the cylinders' weight requires two-handed operation, making it difficult for a single person to control the stability of the trolley frame. While existing acetylene cylinder trolleys have support rods at the high end, these rods are ineffective when the trolley is upright and grounded. Therefore, to facilitate support when the trolley frame is upright and grounded, preventing tipping over and shifting, a new design is needed. Figures 1 to 4 As shown, the acetylene cylinder handcart of this utility model includes an inclined frame 1, which is welded from profiles. The frame 1 is provided with an acetylene cylinder slot 11 arranged along its inclined direction. The lower end of the frame 1 is provided with a traveling wheel 2 rotatably connected to the frame 1 via a shaft 3. The upper end of the frame 1 is provided with a ground support rod 4, which includes a first rod segment 41 and a second rod segment 42. The upper end of the first rod segment 41 is connected to the frame 1, and the upper end of the second rod segment 42 is slidably connected to the lower end of the first rod segment 41 along the axial direction. When the lower end of the frame 1 is in an upright grounded state, the second rod segment 42 can slide relative to the axis of the first rod segment 41 so that the lower end of the second rod segment 42 is supported on the ground. The first rod segment 41 is provided with a locking member 7 for locking the position of the second rod segment 42.

[0023] Similar to existing technologies, to better secure the acetylene cylinder, the acetylene cylinder slot 11 is equipped with an openable and closable retaining clip 12 to fix the acetylene cylinder within the slot 11. The frame 1 of this invention can be equipped with a braking assembly as needed to lock the traveling wheels 2 when necessary, preventing them from rotating.

[0024] like Figure 4As shown, when loading and unloading acetylene cylinders, first flip the frame 1 so that its lower end is upright and grounded. Then slide the second rod section 42 to lengthen the support rod 4, so that the lower end of the second rod section 42 supports the ground. Finally, lock the position of the second rod section 42 with the locking piece 7 to prevent the support rod 4 from shortening under force. The support rod 4 can then support the frame 1. After the acetylene cylinder is loaded and unloaded, slide the second rod section 42 to shorten the support rod 4 back to its previous length, and then flip the frame 1 backward. When moving the trolley, raise the height of the frame 1 appropriately so that the lower end of the support rod 4 is off the ground, and then the frame can be pushed to move. The acetylene cylinder handcart of this utility model has a support rod 4 configured as a two-section axially sliding connection structure. When the lower end of the frame 1 is in an upright grounded state, the second rod section 42 can slide relative to the axis of the first rod section 41, so that the lower end of the second rod section 42 is supported on the ground. In this way, when the lower end of the frame is upright grounded, the frame can be supported by the support rod 4, and the frame is not easy to overturn, tip over or shift, which can better ensure the stability of the frame. There is no need to remove your hand to control the frame during loading and unloading, which not only facilitates the loading and unloading of acetylene cylinders, but also reduces the occurrence of safety accidents.

[0025] The locking element 7 can be a locking screw that abuts against the second rod segment 42. In this invention, the locking element 7 is a pin disposed on the first rod segment 41 and inserted into the second rod segment 42. In some embodiments, the locking element 7 is also a spring pin.

[0026] Support rod 4 can be installed vertically. For example... Figure 1 As shown in the embodiment of this utility model, the support rod 4 is inclined and arranged in a figure-eight shape with the frame 1.

[0027] The upper end of the first rod segment 41 can be fixedly connected to the frame 1 by means of welding, bolting, or other methods. In this embodiment of the present invention, the upper end of the first rod segment 41 is hinged to the frame 1 via a hinge pin 43 that is horizontal and perpendicular to the frame 1, so that the lower end of the support rod 4 can rotate around the hinge pin 43 toward the lower end of the support rod 4, thereby reducing the distance between the lower end of the support rod 4 and the lower end of the frame 1; a pull rope 5 is provided between the support rod 4 and the frame 1 for adjusting the distance between the lower end of the support rod 4 and the lower end of the frame 1, and a rotatable drum 8 is provided on the support rod 4 for adjusting the length of the pull rope 5; one end of the pull rope 5 is connected to the frame 1, and the other end is wound and fixed on the drum 8; the support rod 4 is provided with a locking mechanism for locking the position of the drum 8 to prevent the drum 8 from rotating and causing the pull rope 5 to lengthen.

[0028] When the lower end of the frame 1 is in an upright, grounded position, one end of the pull rope 5 can be wound onto the drum 8 by rotation, thereby adjusting the length of the pull rope 5 to make it shorter. This causes the lower end of the support rod 4 to rotate around the hinge shaft 43 towards its lower end, reducing the distance between the lower end of the support rod 4 and the lower end of the frame 1, as well as the angle between the support rod 4 and the frame 1. This reduces the extension length of the support rod 4, facilitating its extended ground support of the frame 1. Furthermore, this structure also reduces the space occupied by the handcart. The locking mechanism prevents the drum 8 from reversing and causing the pull rope 5 to lengthen, and prevents the support rod 4 from rotating backward, ensuring the support rod 4's supporting effect on the frame 1.

[0029] The locking mechanism can be a worm gear mechanism, a screw that mates with the drum 8, a pin, etc. In this invention, the locking mechanism includes a ratchet 62 and a mechanism sleeved and fixed to a ratchet 61, wherein the ratchet 62 mates with the ratchet 61. It is understood that the ratchet 62 can be held in place with the ratchet 61 by a spring. When it is necessary to increase the length of the pull rope 5, disengaging the ratchet 62 from the ratchet 61 will cause the drum to reverse. Figure 3 The middle roller rotates clockwise, making the pull rope 5 longer.

[0030] like Figure 2 As shown, a fire extinguisher placement chamber 13 is provided on one side of the frame 1 to place fire extinguisher bottles.

[0031] For sun protection, a sunshade can be installed on frame 1 as needed (not shown in the figure).

Claims

1. An acetylene cylinder handcart, comprising an inclined frame (1), wherein the frame (1) is provided with an acetylene cylinder slot (11) arranged along its inclined direction, the lower end of the frame (1) is provided with a traveling wheel (2) rotatably connected to the frame (1) via a shaft (3), and the upper end of the frame (1) is provided with a ground support rod (4), characterized in that: The support rod (4) includes a first rod segment (41) and a second rod segment (42). The upper end of the first rod segment (41) is connected to the frame (1). The upper end of the second rod segment (42) is slidably connected to the lower end of the first rod segment (41) along the axial direction. When the lower end of the frame (1) is in an upright grounded state, the second rod segment (42) can slide relative to the axis of the first rod segment (41) so that the lower end of the second rod segment (42) is supported on the ground. The first rod segment (41) is provided with a locking element (7) for locking the position of the second rod segment (42).

2. The acetylene cylinder handcart as described in claim 1, characterized in that: The support rod (4) is inclined and arranged in a figure-eight shape with the frame (1).

3. The acetylene cylinder handcart as described in claim 1, characterized in that: The locking element (7) is a pin that is installed on the first rod segment (41) and engages with the second rod segment (42).

4. The acetylene cylinder handcart as described in claim 2, characterized in that: The upper end of the first rod segment (41) is hinged to the frame (1) via a hinge axis (43) that is horizontal and perpendicular to the frame (1), so that the lower end of the support rod (4) can rotate around the hinge axis (43) toward the lower end of the support rod (4), thereby reducing the distance between the lower end of the support rod (4) and the lower end of the frame (1). A pull rope (5) is provided between the support rod (4) and the frame (1) for adjusting the distance between the lower end of the support rod (4) and the lower end of the frame (1). A rotatable drum (8) is provided on the support rod (4) for adjusting the length of the pull rope (5). One end of the pull rope (5) is connected to the frame (1), and the other end is wound around and fixed on the drum (8). The support rod (4) is provided with a locking mechanism for locking the position of the drum (8) to prevent the drum (8) from rotating and causing the pull rope (5) to become longer.

5. The acetylene cylinder handcart as described in claim 4, characterized in that: The locking mechanism includes a ratchet (62) and a mechanism fitted and fixed to a ratchet (61), wherein the ratchet (62) engages with the ratchet (61).

6. The acetylene cylinder handcart as described in claim 1, characterized in that: A fire extinguisher placement chamber (13) is provided on one side of the frame (1).

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