Height-adjustable dustproof structure for forward overturning lifting appliance

Abstract

The utility model discloses a height-adjustable dust-proof structure for a forward turning sling, which comprises a container provided with a turning sling, a discharge port of the turning sling is butted with a foldable and expandable dust-proof cloth bag, a positioning gear set is arranged on the outer side of the discharge port end of the turning sling, one end of the positioning gear set is hinged to the corner of the dust-proof cloth bag through a swing rod, and the other end of the positioning gear set is hinged to the corner of the dust-proof cloth bag. The other end of the positioning gear set is hinged to the corner of the dustproof cloth bag through the balance weight sliding sleeve set, and the dustproof cloth bag expands along with rotation of the container and the overturning lifting tool and drives the positioning gear set to conduct internal transmission to complete clamping. According to the utility model, the actions of unfolding, locking, re-unfolding and the like are carried out along with the change of an overturning angle under the action of gravity by virtue of a related folding mechanism, the dustproof cloth bag is controlled to be folded normatively, and the unfolding and folding processes are smoother; in the discharging process of the dustproof cloth bag, the discharging opening is kept in a horizontal state, side face leakage is reduced, and dust flying is prevented; the rod pieces are restrained through the clamping belts, and the rod pieces are mutually limited, so that the swinging of the unfolded dustproof cloth bag is restrained, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flip spreaders, and more particularly to a height-adjustable dustproof structure for a forward flip spreader. Background Art

[0002] The hanger is used to suspend containers or other loaded equipment, and a tilting mechanism is required to drive the hanger's tilting motion. During the tilting process, the container or loading device also tilts with the hanger. When the hanger reaches the unloading position, the material inside flows through the discharge port under the action of gravity into the dust cover and is then discharged to a predetermined location. The dust cover also acts as a dust suppressant. Alternatively, spray pipes and nozzles can be installed around the unloading port to spray water mist to reduce dust and protect the environment.

[0003] Existing dust covers are connected at one end to a hanger or a clearance port, with the cover's feed port connected to the discharge port of the loaded object. Dust covers are often rectangular in cross-section, allowing them to expand and collapse freely and arbitrarily. However, this cannot guarantee that the size and shape of the folded and expanded parts meet operational requirements, potentially interfering with the rollover operation and even damaging the cover. During rollover unloading, the dust cover cannot maintain a completely horizontal discharge port, allowing for side dust leakage. Separate spray equipment, typically located high above the ground, has limited effectiveness in suppressing the large amounts of dust generated by the concentrated dumping of bulk materials. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a dust-proof structure for a forward-flipping sling with adjustable height, so as to solve one or more of the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A dustproof structure for a height-adjustable forward flip spreader comprises a container provided with a flip spreader, a discharge port of the flip spreader docking with a foldable and expandable dustproof bag, a positioning gear set provided on the outer side of the discharge port end of the flip spreader, one end of the positioning gear set hinged to the edge corner of the dustproof bag through a rocker rod, and the other end of the positioning gear set hinged to the edge corner of the dustproof bag through a counterweight sliding sleeve set, the dustproof bag expands and contracts with the rotation of the container and the flip spreader, and drives the internal transmission of the positioning gear set to complete the locking.

[0007] Furthermore, the positioning gear set includes a full gear, an intermediate gear and a locking gear. The back of the full gear is fixedly connected to the rocker arm. The full gear is meshed with the intermediate gear. The intermediate gear is meshed with the locking gear after rotation and both are incomplete gears.

[0008] Furthermore, the lower end of the intermediate gear is smooth and the upper end has gear teeth. The side of the intermediate gear close to the locking gear is provided with an arc-shaped concave section, and the arc-shaped concave section is located at the intersection of the gear tooth section and the smooth section of the intermediate gear. The locking gear is also divided into a smooth section and a gear tooth section, and the smooth section of the locking gear is arranged corresponding to the arc-shaped concave section of the intermediate gear.

[0009] Furthermore, the extension of the dust bag drives the rotation of the full gear and the intermediate gear through the rocker arm, and drives the rotation of the locking gear through the counterweight sliding sleeve group, the smooth section of the locking gear leaves the arc-shaped concave section of the intermediate gear and the tooth section of the locking gear is engaged and locked with the tooth section of the intermediate gear.

[0010] Furthermore, the dustproof cloth bag has Y-shaped folds, and when the dustproof cloth bag is unfolded, it is wide at the top and narrow at the bottom and has a rectangular cross section.

[0011] Furthermore, a clamping belt is provided between the upper and lower ends of the dust-proof cloth bag, and a folding connecting rod is built into the intersection of the upper and lower ends of the dust-proof cloth bag.

[0012] Furthermore, the counterweight sliding sleeve group includes a fan-shaped sliding sleeve, a swing sliding sleeve, a long swing rod, and a sliding rod. One end of the long swing rod is connected to the positioning gear group, and the other end of the long swing rod is hinged to the dust bag. The fan-shaped sliding sleeve can be slidably inserted into the long swing rod, and the swing sliding sleeve is hinged to the fan-shaped sliding sleeve. One end of the sliding rod is inserted into the swing sliding sleeve, and the other end of the sliding rod is hinged to the outside of the discharge port end of the flip hanger.

[0013] Furthermore, the sliding rod is hinged to a position one-quarter the width of the side of the flip spreader, and the counterweight sliding sleeve assembly is always in a plumb state as a whole.

[0014] Furthermore, the hinge point of the sliding rod and the flip hanger is in the same horizontal plane as the positioning gear set.

[0015] Furthermore, when the container and the overturning spreader are overturned by 150 degrees, the side surface of the dust bag is vertical.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1. With the help of the relevant folding mechanism under the action of gravity, the dust bag can be unfolded, locked, and unfolded again as the flip angle changes, so that the dust bag can be folded in a standardized manner. The components will not interfere with each other, and the stretching and folding process is relatively smooth.

[0018] 2. During the unloading process of the dust-proof bag, there is no need to set up spray equipment and the discharge port should be kept horizontal to reduce side leakage and prevent dust from flying;

[0019] 3. By entraining the restraining rods and restricting each other, the swing of the dust bag in the front, back, left and right directions after it is unfolded is restrained, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the expanded structure of an embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the unfolding process at four flip angles of 90°, 110°, 135°, and 150° according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of an embodiment of the present invention in a fully expanded state;

[0023] Figure 4 This is a schematic diagram of the process of the positioning gear set converting from a free state to a locked state in an embodiment provided by the present invention.

[0024] In the figure: 1. Container; 2. Turning spreader; 3. Dust bag; 4. Positioning gear set; 41. Full gear; 42. Intermediate gear; 43. Locking gear; 44. Arc-shaped concave section; 5. Rocker arm; 6. Counterweight sleeve set; 61. Fan-shaped sleeve; 62. Swing sleeve; 63. Long swing arm; 64. Sliding rod; 7. Clamping belt; 8. Folding connecting rod. DETAILED DESCRIPTION

[0025] Example:

[0026] The following is combined with Figure 1-4 The utility model is described in further detail.

[0027] A dustproof structure for a height-adjustable forward flip sling, such as Figure 3 As shown, it is installed at the bottom of the container 1 docked with the overturning spreader 2. Figure 1As shown, the discharge port of the tilting sling 2 is fixedly aligned with the feed port of the dust bag 3. The dust bag 3 itself has Y-shaped folds, which guide subsequent unfolding and folding, facilitating standardized movements. When not in use, the dust bag 3 folds into a very thin sheet. When in use, it unfolds into a Y-shaped structure, wide at the top and narrow at the bottom, with a rectangular cross-section. An appropriate number of clamping straps 7 are added to the four sides of the dust bag 3 between the upper and lower ends. These straps 7 serve to strengthen the integrity of the dust bag 3 and also provide restraint for subsequent rods. A folding link 8 is built into the intersection between the upper and lower ends of the dust bag 3 to support the shape and width of this portion of the bag opening. When the container 1 and the tilting sling are rotated to 150°, the sides of the dust bag 3 are perpendicular. That is, before the tilt angle reaches 150°, the sides of the dust bag 3 are positively tilted, and after the tilt angle reaches 150°, the sides of the dust bag 3 are negatively tilted.

[0028] like Figure 1 and Figure 4 As shown, a positioning gear set 4 is provided on the outside of the discharge port end of the flip hanger 2. The positioning gear set 4 includes a full gear 41, an intermediate gear 42, and a locking gear 43. The full gear 41 is a complete gear 41, while the intermediate gear 42 and the locking gear 43 are incomplete gears 41. The backs of the three gears are provided with a connecting seat to facilitate the installation and connection of the transmission parts. The lower half of the intermediate gear 42 is a smooth section, and the upper half is a gear section. At the same time, an arc-shaped concave section 44 is provided at the intersection of the smooth section and the gear section on one side. The side with the arc-shaped concave section 44 is provided close to the locking gear 43. The locking gear 43 is three-quarters smooth section and one-quarter gear section. When in the folded state, the smooth section is aligned with the arc-shaped concave section 44. Full gear 41 is positioned at the far left end, intermediate gear 42 is rotatably positioned between the other two gears, and locking gear 43 is positioned at the far right end. Full gear 41 meshes with intermediate gear 42, and locking gear 43 rotates to engage with intermediate gear 42. The non-meshing surface of full gear 41 is fixedly connected to one end of rocker arm 5, the other end of which is hinged to the corner of the unfolded dust bag 3. The non-meshing surface of locking gear 43 is fixedly connected to the connecting rod of the counterweight sliding sleeve assembly 6. The dust bag 3 expands and contracts with the rotation of the container 1 and the tipping sling 2 and drives the internal transmission of the positioning gear set 4, driving the smooth section of the locking gear 43 to leave the arc-shaped concave section 44 and rotate until the locking gear 43 is engaged with the intermediate gear 42 and continues to rotate until the dust bag 3 is fully deployed. The full gear 41, the intermediate gear 42 and the locking gear 43 are all in a state of continuous engagement, that is, the extension of the dust bag 3 drives the full gear 41 and the intermediate gear 42 to rotate relative to each other through the rocker arm 5, and also drives the locking gear 43 connected to the counterweight sliding sleeve group 6 to rotate, which actually adds to the meshing relationship of the locking gear 43. Under the premise of not hindering the deployment, it has a strengthening effect on the stable fixation of the dust bag 3 and finally completes the locking.

[0029] The counterweight sleeve assembly 6 includes a fan-shaped sleeve 61, a swing sleeve 62, a long swing rod 63, and a sliding rod 64. One end of the long swing rod 63 is connected to the non-meshing surface of the locking gear 43, and the other end passes through the fan-shaped sleeve 61 and is hinged to the edge of the dust bag 3. The fan-shaped sleeve 61 can slide on the long swing rod 63. The swing sleeve 62 is hinged to the back of the fan-shaped sleeve 61. The sliding rod 64 is inserted into the swing sleeve 62. The other end of the sliding rod 64 is hinged to the outer side surface of the discharge port of the tilting sling 2, at a position one-quarter the width away from the right edge. The counterweight sleeve assembly 6 is always in a plumb state. The hinge point of the sliding rod 64 and the tilting sling 2 is set at the same horizontal height as the positioning gear assembly 4. Throughout the entire process, the long swing rod 63, the sliding rod 64, and the tilting sling 2 form a triangular fixed structure to assist in supporting the shaping. As the dust bag 3 unfolds, the fan-shaped sliding sleeve 61 slides on the long swinging rod 63. Simultaneously, the sliding rod 64 adaptively swings due to the hinged structure of the fan-shaped sliding sleeve 61 and the swinging sliding sleeve 62, maintaining the plumb bob in an extended state without hindering the unfolding of the dust bag 3. The width of the dust bag 3 can be controlled and adjusted by the folding connecting rod 8, the counterweight sliding sleeve assembly 6, etc.

[0030] like Figure 2 and Figure 3 As shown, as the tilting angle of the tilting spreader 2 changes, gravity simultaneously extends the counterweight sliding sleeve 6, rocker arm 5, folding link 8, and other components, engaging and locking the positioning gear set 4 to support the dust bag 3, ensuring the proper size of the discharge port opening and effectively reducing the loss of the dust bag 3. Similarly, during reverse storage and folding, the locking gear 43 of the positioning gear set 4 disengages, and the other components also release their support state. As the container 1 and tilting spreader 2 reverse, the folding is completed, transforming from a rectangular cross-section structure into a folded sheet.

[0031] It should be noted that this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A dustproof structure for a height-adjustable forward tilting spreader, comprising a container (1) provided with a tilting spreader (2), characterized in that: The discharge port of the flip sling (2) is docked with a foldable and expandable dust bag (3); a positioning gear set (4) is provided on the outer side of the discharge port end of the flip sling (2); one end of the positioning gear set (4) is hinged to the edge of the dust bag (3) through a rocker (5); the other end of the positioning gear set (4) is hinged to the edge of the dust bag (3) through a counterweight sliding sleeve set (6); the dust bag (3) expands and contracts with the rotation of the container (1) and the flip sling (2) and drives the internal transmission of the positioning gear set (4) to complete the locking.

2. The dustproof structure for a height-adjustable forward-flipping sling according to claim 1, characterized in that: The positioning gear set (4) comprises a full gear (41), an intermediate gear (42) and a locking gear (43); the back of the full gear (41) is fixedly connected to the rocker (5); the full gear (41) is meshed with the intermediate gear (42); the intermediate gear (42) and the locking gear (43) are meshed after rotation and are both incomplete gears.

3. The dustproof structure for a height-adjustable forward-flipping sling according to claim 2, characterized in that: The lower end of the intermediate gear (42) is smooth and the upper end is provided with gear teeth. The side of the intermediate gear (42) close to the locking gear (43) is provided with an arc-shaped concave section (44). The arc-shaped concave section (44) is located at the intersection of the gear tooth section and the smooth section of the intermediate gear (42). The locking gear (43) is also divided into a smooth section and a gear tooth section. The smooth section of the locking gear (43) is provided corresponding to the arc-shaped concave section (44) of the intermediate gear (42).

4. The dustproof structure for a height-adjustable forward-flipping sling according to claim 3, characterized in that: The extension of the dust bag (3) drives the rotation of the full gear (41) and the intermediate gear (42) through the rocker (5) and drives the rotation of the locking gear (43) through the counterweight sliding sleeve group (6); the smooth section of the locking gear (43) leaves the arc-shaped concave section (44) of the intermediate gear (42) and the gear tooth section of the locking gear (43) is meshed and locked with the gear tooth section of the intermediate gear (42).

5. The dustproof structure for a height-adjustable forward-flipping sling according to claim 1, characterized in that: The dustproof cloth bag (3) has Y-shaped folds. When the dustproof cloth bag (3) is unfolded, it is wide at the top and narrow at the bottom, and has a rectangular cross section.

6. The dustproof structure for a height-adjustable forward-flipping sling according to claim 1, characterized in that: A clamping belt (7) is provided between the upper and lower ends of the dust-proof cloth bag (3), and a folding connecting rod (8) is built into the intersection of the upper and lower ends of the dust-proof cloth bag (3).

7. The dustproof structure for a height-adjustable forward-flipping sling according to claim 1, characterized in that: The counterweight sliding sleeve group (6) includes a fan-shaped sliding sleeve (61), a swing sliding sleeve (62), a long swing rod (63), and a sliding rod (64). One end of the long swing rod (63) is connected to the positioning gear group (4), and the other end of the long swing rod (63) is hinged to the dust bag (3). The fan-shaped sliding sleeve (61) is slidably arranged on the long swing rod (63), and the swing sliding sleeve (62) is hinged on the fan-shaped sliding sleeve (61). One end of the sliding rod (64) is inserted into the swing sliding sleeve (62), and the other end of the sliding rod (64) is hinged to the outer side of the discharge port end of the flip hanger (2).

8. The dustproof structure for a height-adjustable forward-flipping sling according to claim 7, characterized in that: The sliding rod (64) is hinged to a position one-quarter the width of the side of the flip sling, and the counterweight sliding sleeve group (6) is always in a plumb state as a whole.

9. The dustproof structure for a height-adjustable forward-flipping sling according to claim 7, characterized in that: The hinge point between the sliding rod (64) and the flip hanger (2) is located on the same horizontal plane as the positioning gear set (4).

10. The dustproof structure for a height-adjustable forward-flipping sling according to claim 1, characterized in that: When the container (1) and the overturning sling (2) are overturned by 150°, the side surface of the dustproof cloth bag (3) is vertical.

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