Elevator dustproof structure and dustproof elevator

Abstract

The utility model discloses a dustproof structure of elevator and dustproof elevator relates to medicine machine equipment technical field, including guide roller and sealing belt, two guide rollers are set up, and two guide rollers are respectively rotatory installation in the mouth top and bottom of guide groove, the width of sealing belt is greater than the mouth width of guide groove, and it is wound between two guide rollers, and has relatively set up the front face belt surface and rear face belt surface, wherein, the front face belt surface is located the mouth outside of guide groove, and abuts at the outside of mouth and completely shields the mouth, the rear face belt surface is located the mouth inside of guide groove, the lifting bucket of elevator is fixed on the front face belt surface, when lifting bucket elevates and falls, sealing belt moves up and down with lifting bucket synchronization. Sealing belt moves with lifting bucket synchronization, avoids direct friction of both, reduces the belt wear and tear and the generation of chippings, prolongs the service life of sealing belt.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical machinery equipment technology, and in particular to a dustproof structure for a hoist and a dustproof hoist. Background Technology

[0002] A hoist transports materials by using a lifting drive to move lifting buckets up and down along a guide structure. The lifting buckets are typically connected to the lifting drive via a connecting plate, which must extend into the guide groove of the guide seat. The guide groove provides space for the connecting plate to move up and down. However, if the guide groove opening is not dustproofed, two major problems arise: First, during hoist operation, dust generated by the lifting drive (such as chains and wire ropes) within the guide groove can easily overflow from the opening, polluting the production environment and endangering the health of operators. Second, external dust and impurities can easily enter the guide groove from the opening, adhering to the surface of the lifting drive or guide structure, leading to accelerated wear of components, even causing jamming malfunctions, shortening the hoist's service life, and increasing maintenance costs.

[0003] In existing technologies, the dustproof solution for the guide groove opening is mostly a "fixed sealing belt type," where the upper and lower ends of the sealing belt are directly fixed to the top and bottom of the guide groove opening, and the connecting plate extends from one side of the sealing belt and connects to the lifting bucket. However, this solution has obvious drawbacks: when the lifting bucket is raised and lowered, the outer wall of the lifting bucket will continuously rub against the surface of the sealing belt, and the connecting plate will rub against the bottom and sides of the sealing belt; long-term friction causes the edges of the sealing belt to wear and gaps to appear in the middle, resulting in a sharp decrease in dustproof effect; in addition, belt debris generated by friction can easily mix into materials or enter the guide groove, further aggravating equipment failure. Utility Model Content

[0004] The purpose of this utility model is to provide a dustproof structure for a hoist and a dustproof hoist, which improves the sealing effect by having a sealing belt move synchronously with the hoisting bucket without direct friction.

[0005] To achieve the above objectives, this utility model provides a dustproof structure for a hoist, used to prevent dust from entering the guide groove of the hoist. It includes guide rollers and a sealing belt. Two guide rollers are provided, rotatably mounted at the top and bottom of the guide groove opening, respectively, with their central axes parallel to the width direction of the guide groove. The sealing belt is wider than the guide groove opening and is wound between the two guide rollers, having a front surface and a rear surface opposite to each other. The front surface is located outside the guide groove opening, abutting against the outside of the opening and completely covering it. The rear surface is located inside the guide groove opening. The hoist's bucket is fixed to the front surface. When the bucket rises or falls, the sealing belt moves up and down synchronously with the bucket.

[0006] With the above structure, the sealing belt moves synchronously with the lifting bucket, avoiding direct friction between the two, reducing belt wear and debris generation, and extending the service life of the sealing belt; the sealing belt completely covers the guide groove opening, while blocking dust overflow and external impurities from entering; the guide roller, in conjunction with the sealing belt's winding design, ensures that the sealing belt moves smoothly and that the seal against the groove opening remains tight.

[0007] Furthermore, a connecting plate clearance opening is provided on the front surface of the sealing belt; the connecting plate clearance opening is located at the position of the lifting bucket and is covered by the lifting bucket; the connecting plate clearance opening is used to avoid the connecting plate of the elevator; after the connecting plate passes through the slot, it passes through the connecting plate clearance opening to connect with the lifting bucket and drive the lifting bucket to move up and down. The connecting plate clearance opening is specifically designed to avoid the connecting plate, preventing friction between the connecting plate and the sealing belt from causing belt damage; the clearance opening is covered by the lifting bucket, which does not affect the overall sealing effect of the sealing belt and ensures that there are no exposed gaps in the slot.

[0008] Furthermore, the connecting plate clearance opening has a transverse cross-section structure, and this transverse cross-section completely cuts off the sealing belt; after the sealing belt is cut off, two breaks are formed, one of which is the upper end break of the sealing belt and the other is the lower end break of the sealing belt, and the upper end break and the lower end break are respectively fixed on the lifting bucket of the elevator.

[0009] Furthermore, two pressure rollers are fixedly installed on the lifting bucket, one above and one below. The central axes of both the upper and lower pressure rollers are parallel to the central axis of the guide rollers. The installation height of the upper pressure roller is lower than the fixed position of the upper end of the sealing belt and the lifting bucket, while the installation height of the lower pressure roller is higher than the fixed position of the lower end of the sealing belt and the lifting bucket. The upper end of the sealing belt extends downward and wraps around the upper pressure roller, then bends upward and is fixed to the lifting bucket. The lower end of the sealing belt extends upward and wraps around the lower pressure roller, then bends downward and is fixed to the lifting bucket. The pressure rollers achieve a bending transition at the sealing belt break, avoiding stress concentration caused by direct fixing of the break and preventing tearing. The bending structure enhances the fit between the sealing belt break and the groove, further improving dustproof sealing performance. The pressure rollers assist in the movement of the sealing belt, reducing wear at the break and extending the service life of the sealing belt.

[0010] Furthermore, limiting discs with a diameter larger than that of the pressure roller are respectively provided on both sides of the pressure roller; the sealing belt is clamped between the two limiting discs.

[0011] Furthermore, a baffle is fixed to the top and bottom of the guide groove, and the baffle abuts the top and bottom of the sealing belt against the groove opening. The baffle abuts the top and bottom of the sealing belt against the groove opening to prevent gaps from forming between the sealing belt and the groove opening when the sealing belt moves, thereby enhancing the sealing effect; it also prevents external material particles and other impurities from falling into the guide groove, protecting the internal drive device and guide structure, and reducing equipment failure.

[0012] Furthermore, an upper extension piece is fixed at the upper break of the sealing belt, and a lower extension piece is fixed at the lower break of the sealing belt. The upper extension pieces and the upper break together form a human-shaped structure, and the lower extension pieces and the lower break together form a human-shaped structure. Both the upper and lower breaks of the sealing belt abut against the opening of the guide groove. The upper extension piece bends away from the groove opening and wraps around the upper pressure roller, with the end of the upper extension piece away from the upper break fixed to the lifting bucket. The lower extension piece bends away from the groove opening and wraps around the lower pressure roller, with the end of the lower extension piece away from the lower break fixed to the lifting bucket. The extension pieces and the breaks form a human-shaped structure, increasing the contact area between the breaks and the pressure rollers, reducing localized stress, and preventing damage to the breaks. The bending design of the extension pieces ensures that the front surface of the sealing belt always fits tightly against the groove opening, preventing belt loosening and improving dustproof reliability. It simplifies the connection transition between the sealing belt and the lifting bucket, reduces installation difficulty, and extends the overall service life of the sealing belt.

[0013] Furthermore, the outer surface of the guide roller is provided with anti-slip texture.

[0014] A dustproof hoist includes: a movable base, a guide seat fixed on the base, a hoisting bucket slidably mounted on the guide seat, and a drive device for driving the hoisting bucket to slide up and down along the guide seat; the guide seat has a guide groove inside, and the front side of the guide groove has an opening connecting the guide groove to the outside; the opening is vertically arranged; the drive device is installed in the guide groove and is fixedly connected to the hoisting bucket through a connecting plate; the opening is used to avoid the lifting and lowering of the connecting plate; a dustproof structure of the hoist as described above is installed at the opening position.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are: This utility model provides a dustproof structure for a hoist and a dustproof hoist, which solves the technical problem in the prior art where the sealing belt fixing structure causes friction between the connecting plate and the sealing belt during the up and down process, resulting in a short service life of the sealing belt. This utility model improves the sealing effect by having the sealing belt move synchronously with the hoisting bucket without direct friction. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a dustproof elevator according to the present invention; Figure 2yes Figure 1 Side sectional view; Figure 3 yes Figure 2 A magnified view of part A in the image; Figure 4 This is a structural diagram of the lifting seat; Figure 5 yes Figure 4 Side sectional view; Figure 6 This is a schematic diagram of the structure of the upper extension piece of the sealing belt and the sealing belt in another embodiment.

[0017] In the diagram, 1. Guide roller, 2. Sealing belt, 21. Front belt surface, 211. Connecting plate clearance opening, 22. Rear belt surface, 23. Upper extension plate, 24. Lower extension plate, 31. Base, 32. Guide seat, 321. Guide groove, 322. Groove opening, 33. Lifting bucket, 331. Lifting seat, 332. Hopper, 333. Pressure roller, 34. Drive device, 341. Pulley, 342. Belt, 343. Fixed seat, 344. Connecting plate, 35. Baffle. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] The orientations mentioned in this specification refer to the orientation of the dustproof structure and dustproof elevator of this utility model during normal operation. They do not limit the orientation during storage and transportation, but only represent relative positional relationships, not absolute positional relationships.

[0020] like Figures 1-3 As shown, a dustproof structure for a hoist is provided for preventing dust from entering the slot 322 of the guide groove 321 of the hoist.

[0021] The specific structure of the hoist in this embodiment is as follows: A dustproof hoist includes a movable base 31, a guide seat 32 fixed on the base 31, a hoisting bucket 33 slidably mounted on the guide seat 32, and a drive device 34 for driving the hoisting bucket 33 to slide up and down along the guide seat 32.

[0022] The base 31 is equipped with casters at the bottom, which can be used to easily adjust its position.

[0023] The guide seat 32 is fixed on the base 31 and extends upward. The guide seat 32 has a guide groove 321 inside, and the front side of the guide groove 321 has a slot 322 that connects the guide groove 321 with the outside; the slot 322 is vertically arranged.

[0024] The drive device 34 is installed in the guide groove 321. In this embodiment, the drive device 34 includes pulleys 341 installed on the top and bottom of the guide seat 32. The two pulleys 341 are connected by a belt 342. The axle of either pulley 341 is connected to a motor through a reducer.

[0025] A fixed seat 343 is slidably mounted up and down within the guide groove 321 via a guide rod. The fixed seat 343 is fixed to the belt 342 by a clamp. The up and down movement of the belt 342 causes the fixed seat 343 to slide up and down along the guide rod. The fixed seat 343 is fixedly connected to the lifting bucket 33 via a connecting plate 344. The connecting plate 344 extends from the groove opening 322 and is fixed to the lifting bucket 33. The lifting bucket 33 includes a lifting seat 331 and a hopper 332 fixed to the lifting seat 331 on the side away from the groove opening 322. The connecting plate 344 is fixed to the lifting seat 331; the hopper 332 is used to hold materials.

[0026] A dustproof structure for a hoist includes guide rollers 1 and a sealing belt 2. Two guide rollers 1 are provided, rotatably mounted at the top and bottom of the opening 322 of a guide groove 321 via bearing seats. The central axis of the guide rollers 1 is parallel to the width direction of the opening 322. The length of the sealing belt 2 is designed according to the height of the guide groove 321, and after being wound between the two guide rollers 1, sufficient movement allowance is reserved to meet the maximum lifting stroke of the hoisting bucket 33. The length of the guide rollers 1 is not less than the width of the sealing belt 2 to prevent the sealing belt 2 from shifting during movement. Baffle discs are respectively provided on both sides of the guide rollers 1 and the sealing belt 2 is clamped between the two baffle discs. The width of the sealing belt 2 is greater than the width of the opening 322 of the guide groove 321, completely covering the opening 322 to effectively prevent dust from overflowing from the gaps on both sides. The outer surface of the guide roller 1 is provided with anti-slip texture (such as diamond pattern or spiral pattern) to increase the friction between the guide roller 1 and the sealing belt 2, prevent the sealing belt 2 from slipping when it rises and falls with the lifting bucket 33, and ensure that the two move synchronously.

[0027] The sealing belt 2 has a front belt surface 21 and a rear belt surface 22 that are arranged opposite to each other; wherein, the front belt surface 21 is located outside the groove 322 of the guide groove 321, and abuts against the outside of the groove 322 and completely covers the groove 322; the rear belt surface 22 is located inside the groove 322 of the guide groove 321.

[0028] The lifting bucket 33 of the elevator is fixed on the front belt surface 21; when the lifting bucket 33 is raised or lowered, the sealing belt 2 moves up and down synchronously with the lifting bucket 33.

[0029] The fixing method between the lifting bucket 33 and the front belt surface 21 is as follows: A connecting plate clearance opening 211 is provided on the front surface 21 of the sealing belt 2. The connecting plate clearance opening 211 is located at the position of the lifting bucket 33 and is blocked by the lifting bucket 33. The connecting plate clearance opening 211 is used to avoid the connecting plate 344 of the elevator. After the connecting plate 344 passes through the slot 322, it passes through the connecting plate clearance opening 211 to connect with the lifting bucket 33 and drive the lifting bucket 33 to move up and down. This structural arrangement avoids the connecting plate 344 from passing through the side of the front surface 21, thereby opening the side of the front surface 21 and forming a gap, which would cause dust to enter the guide groove 321 during the up and down movement.

[0030] The connecting plate clearance opening 211 has a transverse cross-section structure, which completely cuts off the sealing belt 2. The sealing belt 2 is cut into two ends: one is the upper end, and the other is the lower end. These two ends are respectively fixed to the lifting bucket 33 of the elevator. The upper and lower ends are fixed with bolts, which press them firmly against the lifting seat 331. This ensures that the sealing belt moves synchronously up and down when the lifting bucket 33 is raised or lowered.

[0031] Furthermore, a baffle 35 is fixed to the top and bottom of the guide groove 321, respectively. The baffle 35 abuts the top and bottom of the sealing belt 2 against the groove opening 322 of the guide groove 321. The lateral portion of the baffle 35 abuts the top and bottom edges of the sealing belt 2 against the top and bottom end faces of the groove opening 322 of the guide groove 321, respectively, forming a "limiting" to prevent gaps from appearing between the top or bottom of the sealing belt 2 and the groove opening 322 when it moves with the lifting bucket 33. At the same time, the baffle 35 can prevent external impurities (such as material particles) from falling into the guide groove 321, thus playing a protective role.

[0032] Further improvements were made based on the above embodiments.

[0033] like Figure 3 , Figure 4 and Figure 5 As shown, two pressure rollers 333 are fixedly installed on the lifting bucket 33. In this embodiment, the pressure rollers 333 are installed inside the lifting seat 331. One is located above the lifting bucket 33, and the other is located below the lifting bucket 33.

[0034] The central axes of both the upper and lower pressure rollers 333 are parallel to the central axis of the guide roller 1. The installation height of the upper pressure roller 333 is lower than the fixed position of the upper end of the sealing belt 2 and the lifting bucket 33, while the installation height of the lower pressure roller 333 is higher than the fixed position of the lower end of the sealing belt 2 and the lifting bucket 33. The upper end of the sealing belt 2 extends downward and wraps around the upper pressure roller 333, then bends upward and is fixed to the lifting bucket 33. The lower end of the sealing belt 2 extends upward and wraps around the lower pressure roller 333, then bends downward and is fixed to the lifting bucket 33. This height design allows the break of the sealing belt 2 to achieve a "bending transition" by wrapping around the pressure roller 333, avoiding stress concentration caused by direct fixing of the break, and enhancing the fit between the break and the groove 322.

[0035] Furthermore, limiting discs with a diameter larger than that of the pressure roller 333 are respectively provided on both sides of the pressure roller 333; the sealing belt 2 is clamped between the two limiting discs. This can effectively limit the axial displacement of the sealing belt 2 on the pressure roller 333, and prevent the sealing belt from detaching from the pressure roller 333 or from experiencing side wear.

[0036] In another embodiment, the lower end break and the lower end break of the sealing belt 2 are improved.

[0037] like Figure 6 As shown, an upper extension piece 23 is fixed at the upper end of the sealing belt 2, and a lower extension piece 24 is fixed at the lower end of the sealing belt 2. The upper extension piece 23 and the upper end break together form a human-shaped structure, and the lower extension piece 24 and the lower end break together form a human-shaped structure. Both the upper and lower ends of the sealing belt 2 abut against the groove 322 of the guide groove 321. The upper extension piece 23 bends away from the groove 322 and wraps around the upper pressure roller 333, and the end of the upper extension piece 23 away from the upper end break is fixed to the lifting bucket 33. The lower extension piece 24 bends away from the groove 322 and wraps around the lower pressure roller 333, and the end of the lower extension piece 24 away from the lower end break is fixed to the lifting bucket 33. The material of the extension pieces is the same as that of the sealing belt 2 (such as wear-resistant rubber), and the length is designed according to the distance between the pressure roller 333 and the fixing point of the lifting bucket 33. The extension piece and the corresponding sealing belt 2 at the break point can be fixed together by sewing, bonding, or screwing. The extension piece increases the contact area between the break point and the pressure roller 333, reduces local stress at the break point, and at the same time, through the "human-shaped" bending transition, ensures that the front surface 21 of the sealing belt always keeps in close contact with the groove 322, avoiding belt loosening caused by fixing the break point, and further improving the sealing effect.

[0038] By having the sealing belt 2 move synchronously with the lifting bucket 33, there is no direct friction between the sealing belt 2 and the lifting bucket 33 and the connecting plate 344. This extends the service life of the sealing belt 2, reduces the maintenance frequency, and significantly reduces maintenance costs.

[0039] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A dustproof structure for a hoist, used to prevent dust from entering the slot (322) of the guide groove (321) of the hoist, characterized in that: Includes guide rollers (1) and sealing belts (2); Two guide rollers (1) are provided, and the two guide rollers (1) are respectively rotatably installed at the top and bottom of the groove (322) of the guide groove (321). The central axis of the guide roller (1) is parallel to the width direction of the guide groove (321). The width of the sealing belt (2) is greater than the width of the groove (322) of the guide groove (321). It is wound between the two guide rollers (1) and has a front belt surface (21) and a rear belt surface (22) arranged opposite to each other. The front belt surface (21) is located outside the groove (322) of the guide groove (321) and abuts against the outside of the groove (322) and completely covers the groove (322). The rear belt surface (22) is located inside the groove (322) of the guide groove (321). The lifting bucket (33) of the elevator is fixed on the front belt surface (21); when the lifting bucket (33) is raised or lowered, the sealing belt (2) moves up and down synchronously with the lifting bucket (33).

2. The dustproof structure for a hoist according to claim 1, characterized in that: The sealing belt (2) has a connecting plate clearance opening (211) on its front belt surface (21); the connecting plate clearance opening (211) is located at the position of the lifting bucket (33) and is covered by the lifting bucket (33); the connecting plate clearance opening (211) is used to avoid the connecting plate (344) of the elevator. After the connecting plate (344) passes through the slot (322), it passes through the relief opening (211) of the connecting plate to connect the lifting bucket (33) and drive the lifting bucket (33) to move up and down.

3. The dustproof structure for a hoist according to claim 2, characterized in that: The connecting plate clearance opening (211) has a transverse cross-section structure, and the transverse cross-section completely cuts off the sealing belt (2); after the sealing belt (2) is cut off, two breaks are formed, one of which is the upper end break of the sealing belt (2), and the other is the lower end break of the sealing belt (2). The upper end break and the lower end break are respectively fixed on the lifting bucket (33) of the elevator.

4. The dustproof structure for a hoist according to claim 3, characterized in that: Two pressure rollers (333) are fixedly installed on the lifting bucket (33), one above the lifting bucket (33) and the other below the lifting bucket (33); the central axes of the upper pressure roller (333) and the lower pressure roller (333) are parallel to the central axis of the guide roller (1); the installation height of the upper pressure roller (333) is lower than the upper end of the sealing belt (2) and the fixed position of the lifting bucket (33), and the installation height of the lower pressure roller (333) is higher than the lower end of the sealing belt (2) and the fixed position of the lifting bucket (33); the upper end of the sealing belt (2) first extends downward and wraps around the upper pressure roller (333), and then bends upward and is fixed on the lifting bucket (33); the lower end of the sealing belt (2) first extends upward and wraps around the lower pressure roller (333), and then bends downward and is fixed on the lifting bucket (33).

5. The dustproof structure for a hoist according to claim 4, characterized in that: The pressure roller (333) is provided with limiting discs on both sides, each with a diameter larger than that of the pressure roller (333); the sealing belt (2) is clamped between the two limiting discs.

6. The dustproof structure for a hoist according to claim 1, characterized in that: A baffle (35) is fixed to the top and bottom of the guide groove (321), and the baffle (35) abuts the top and bottom of the sealing belt (2) against the groove opening (322) of the guide groove (321).

7. The dustproof structure for a hoist according to claim 4, characterized in that: An upper extension piece (23) is fixed at the upper end of the sealing belt (2), and a lower extension piece (24) is fixed at the lower end of the sealing belt (2). The upper extension piece (23) and the upper end break together form a human-shaped structure, and the lower extension piece (24) and the lower end break together form a human-shaped structure. The upper end break and the lower end break of the sealing belt (2) both abut against the groove (322) of the guide groove (321). The upper extension piece (23) bends away from the groove (322) and wraps around the upper pressure roller (333), and the end of the upper extension piece (23) away from the upper end break is fixed to the lifting bucket (33). The lower extension piece (24) bends away from the groove (322) and wraps around the lower pressure roller (333), and the end of the lower extension piece (24) away from the lower end break is fixed to the lifting bucket (33).

8. The dustproof structure for a hoist according to claim 1, characterized in that: The outer surface of the guide roller (1) is provided with anti-slip texture.

9. A dustproof elevator, characterized in that, include: A movable base (31), a guide seat (32) fixed on the base (31), a lifting bucket (33) slidably mounted on the guide seat (32), and a drive device (34) for driving the lifting bucket (33) to slide up and down along the guide seat (32); The guide seat (32) is provided with a guide groove (321) inside, and the front side of the guide groove (321) is provided with a slot (322) that connects the guide groove (321) with the outside; the slot (322) is arranged vertically up and down; The drive device (34) is installed in the guide groove (321), and is fixedly connected to the lifting bucket (33) through the connecting plate (344); the groove (322) is used to avoid the lifting of the connecting plate (344); The dustproof structure of any one of claims 1-8 is installed at the slot (322) position.

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