Portal frame hoisting equipment

Abstract

The utility model relates to the technical field of hoisting machinery, in particular to portal frame hoisting equipment. According to the utility model, the ton bag can be hoisted by using the chain hoist, then the ton bag is pushed to move to the upper part of the feeding box along the length direction of the cross beam, and then the ton bag is opened to pour plastic particles. The portal frame can be installed in a narrow space, so that hoisting and moving of ton bags are achieved, and then feeding work is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting machinery, in particular to a gantry hoisting device. Background Art

[0002] In the injection molding process, plastic particles need to be melted and then workpieces are produced according to predetermined standards. The plastic particles are usually stored in ton bags that can hold several tons of materials, and then transported by a forklift to the upper part of the feed box of the plastic particles. Then, the ton bag is opened to pour the plastic particles into the feed box. However, in many processing plants, the space at the feed box is often small, and the forklift cannot drive into the area of the feed box. In the face of this situation, usually, the way of manually pushing a trolley is adopted to push the ton bag to the feed box, and then the plastic particles in the ton bag are scooped up and poured into the feed box in batches and multiple times. The process of manual feeding is time-consuming and laborious, and the speed of manual feeding is slow, resulting in a reduction in the efficiency of injection molding processing. Therefore, it is urgently needed to be solved. Content of the Utility Model

[0003] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a gantry hoisting device. The utility model can lift the ton bag in a narrow space to pour the plastic particles into the feed box and thus complete the feeding work.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A gantry hoisting device includes a gantry spanning above the feed box. A manual hoist for lifting the ton bag is slidably arranged on the cross beam of the gantry, and a positioning telescopic rod that can extend and insert into a positioning hole opened on the cross beam is arranged on the manual hoist.

[0006] As a further scheme of the utility model: The positioning telescopic rod is fixedly installed on a limiting block at the top of the manual hoist. A guiding hole is opened on the limiting block, and a positioning pin that can axially slide along the guiding hole to insert its front end into the positioning hole is coaxially penetrated in the guiding hole. On the pin bodies of the positioning pins on both sides of the guiding hole, limiting rings with an outer diameter larger than the aperture of the guiding hole are coaxially fixed, and a return spring is compressed between the limiting ring located between the positioning hole and the guiding hole and the limiting block.

[0007] As a further scheme of the utility model: A hanging rope hole with an axis perpendicular to the axis of the positioning pin is opened at the bottom end of the positioning pin, and a pulling rope for pulling the positioning pin is fixedly penetrated in the hanging rope hole.

[0008] As a further solution of the utility model: a guiding groove with a notch vertically downward and a groove length direction extending along the length direction of the cross beam is formed on the lower side surface of the cross beam, and the two groove walls of the guiding groove gradually contract along the notch direction; a guiding block is slidably arranged in the cavity of the guiding groove; a hanging ring fixed at the bottom of the guiding block extends downward out of the guiding groove and is hooked with the hook at the top of the manual hoist.

[0009] As a further solution of the utility model: guiding strips are arranged on the two groove walls at the notch of the guiding groove, and the length directions of the two guiding strips are both arranged along the length direction of the guiding groove; sliding grooves are formed on both sides of the guiding block; the two guiding strips are respectively inserted into the corresponding sliding grooves and form a sliding fit with the sliding grooves.

[0010] As a further solution of the utility model: each positioning hole is formed on the lower side surface of the cross beam, and the positioning holes are arranged at equal intervals in sequence along the length direction of the cross beam.

[0011] As a further solution of the utility model: a limiting block is installed at the position of the guiding block outside the guiding groove.

[0012] As a further solution of the utility model: support rods are arranged at both ends of the cross beam, and the rod length directions of the two support rods both extend along the vertical direction.

[0013] As a further solution of the utility model: a diagonal brace is fixedly installed at the joint of the cross beam and the support rod to cooperate with the cross beam and the support rod to form a triangular stable structure.

[0014] As a further solution of the utility model: a support plate is fixedly installed at the bottom end of the support rod, and a locking hole for the expansion screw to pass through to fix the support plate on the ground is formed on the support plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model can use a manual hoist to lift the ton bag, then push the ton bag along the length direction of the cross beam to the upper part of the feeding box, and then open the ton bag to pour plastic particles. The gantry can be installed in a narrow space, so as to realize the lifting and moving of the ton bag, and then complete the feeding work.

[0017] 2. The utility model uses the cooperation of the positioning pin and the positioning hole to be able to position the guiding hole on the cross beam, so that the manual hoist will not move during the process of lifting the ton bag, and the lifting stability is improved.

[0018] 3. The utility model abandons the electric control mode and adopts the mode of manually pulling down the positioning pin by the pulling rope to release the locking of the guiding block, reduces the complexity of the structure, and improves the using stability. Brief Description of the Drawings

[0019] Figure 1 This is the overall structural schematic diagram of the present utility model.

[0020] Figure 2 This is the bottom view of the present utility model.

[0021] Figure 3 This is the split structural schematic diagram of the positioning telescopic rod in the present utility model.

[0022] In the figure: 1, gantry; 11, cross beam; 111, guide groove; 1111, guide strip; 112, positioning hole; 12, support rod; 13, diagonal brace; 14, support plate; 141, locking hole; 2, positioning telescopic rod; 21, limit block; 211, guide hole; 22, positioning pin; 221, limit ring; 222, hanging rope hole; 23, pulling rope; 24, return spring; 3, guide block; 31, chute; 32, hanging ring; 4, manual hoist; 41, hook; 42, bearing hook; 43, drive chain. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, a gantry hoisting device includes a gantry 1 straddling above the feeding box. The gantry 1 includes a cross beam 11 horizontally arranged in the length direction. Support rods 12 are arranged at both ends of the cross beam 11, and the rod length directions of the two support rods 12 both extend along the vertical direction. A diagonal brace 13 is fixedly installed at the joint of the cross beam 11 and the support rod 12 to cooperate with the cross beam 11 and the support rod 12 to form a triangular stable structure. The bottom end of the support rod 12 is fixedly installed with a support plate 14, and a locking hole 141 for an expansion screw to pass through to fix the support plate 14 on the ground is opened on the support plate 14. The expansion screw passes through the locking hole 141 to fix the gantry 1 on the ground.

[0025] A guiding groove 111 with a notch vertically downward and a groove length direction extending along the length direction of the cross beam 11 is formed on the lower side surface of the cross beam 11. Guiding strips 1111 are arranged on both groove walls at the notch of the guiding groove 111, and the length directions of the two guiding strips 1111 are both arranged along the length direction of the guiding groove 111. Sliding grooves 31 are formed on both sides of the guiding block 3; the two guiding strips 1111 are respectively inserted into the corresponding sliding grooves 31 and form a sliding fit with the sliding grooves 31. The guiding hole 211 is arranged in the guiding groove 111 through the cooperation of the sliding groove 31 and the guiding strip 1111.

[0026] A positioning telescopic rod 2 is further installed on the guiding block 3. The positioning telescopic rod 2 includes a limiting block 21 fixedly installed on the guiding hole 211. A guiding hole 211 is formed on the limiting block 21. A positioning pin 22 that can axially slide along the guiding hole 211 to insert its front end into the positioning hole 112 is coaxially inserted into the guiding hole 211. Limiting rings 221 with an outer diameter larger than the aperture of the guiding hole 211 are coaxially fixed on the pin bodies of the positioning pins 22 on both sides of the guiding hole 211, and a return spring 24 is compressed between the limiting ring 221 and the limiting block 21 located between the positioning hole 112 and the guiding hole 211. A hanging rope hole 222 with an axial direction perpendicular to the axial direction of the positioning pin 22 is formed at the bottom end of the positioning pin 22, and a pulling rope 23 for pulling the positioning pin 22 is fixedly inserted into the hanging rope hole 222. By using the method of manually pulling down the pulling rope 23 to disengage the positioning pin 22, the locking of the guiding block 3 is released, reducing the complexity of the structure and improving the stability of use. Each positioning hole 112 is formed on the lower side surface of the cross beam 11, and the positioning holes 112 are arranged at equal intervals in sequence along the length direction of the cross beam 11. A hanging ring 32 fixed at the bottom of the guiding block 3 extends downward out of the guiding groove 111 and is hooked with a hook 41 at the top of the manual hoist 4.

[0027] During use, first pull down the pulling rope 23 to separate the positioning pin 22 from the positioning hole 112, then pull the manual hoist 4 to a corresponding position through the driving chain 43 on the manual hoist 4, and then release the pulling rope 23 to enable the positioning pin 22 to be inserted into the positioning hole 112 again. Then, the pulling chain on the manual hoist 4 is extended through the driving chain 43, and then the carrying hook 42 is hung on the handle bag of the ton bag. Then, the pulling chain is shortened through the driving chain 43 to lift the ton bag. Then, pull down the pulling rope 23 again to separate the positioning pin 22 from the positioning hole 112, then push the ton bag by hand and push the ton bag above the feeding box, and then release the pulling rope 23 to enable the positioning pin 22 to be inserted into the positioning hole 112 again. Finally, open the ton bag for discharging.

[0028] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A gantry hoisting device, characterized in that, The invention comprises a gantry (1) spanning above a feed box, a manual hoist (4) for lifting ton bags is slidably arranged on a crossbeam (11) of the gantry (1), and a positioning telescopic rod (2) is arranged on the manual hoist (4) which can be extended and inserted into a positioning hole (112) provided on the crossbeam (11).

2. The gantry hoisting device according to claim 1, characterized in that The positioning telescopic rod (2) is fixedly mounted on a limiting block (21) at the top of the manual hoist (4); a guide hole (211) is provided on the limiting block (21); a positioning pin (22) is coaxially penetrated in the guide hole (211) and can slide axially along the guide hole (211) so that its front end is inserted into the positioning hole (112); limiting rings (221) having an outer diameter greater than the diameter of the guide hole (211) are coaxially fixedly connected to the pin bodies of the positioning pins (22) located on both sides of the guide hole (211); and a return spring (24) is compressed between the limiting ring (221) and the limiting block (21) located between the positioning hole (112) and the guide hole (211).

3. The gantry crane hoisting equipment according to claim 2, characterized in that, The bottom end of the positioning pin (22) is provided with a hanging rope hole (222) whose axial direction is perpendicular to the axial direction of the positioning pin (22), and a pulling rope (23) for pulling the positioning pin (22) is passed through and fixed in the hanging rope hole (222).

4. A gantry hoisting device according to claim 1 or 2 or 3, characterized in that, A guide groove (111) is provided on the lower side of the cross beam (11), the groove opening of which is vertically downward and the groove length direction of which extends along the length direction of the cross beam (11), and the two groove walls of the guide groove (111) gradually shrink along the groove opening direction; a guide block (3) is slidably arranged in the groove cavity of the guide groove (111); a hanging ring (32) fixed at the bottom of the guide block (3) extends downward out of the guide groove (111) and is hooked with a hook (41) at the top of the manual hoist (4).

5. The gantry hoisting equipment according to claim 4, characterized in that, Guide strips (1111) are arranged on both groove walls at the groove opening of the guide groove (111), and the length directions of the two guide strips (1111) are arranged along the length direction of the guide groove (111); slide grooves (31) are provided on both sides of the guide block (3); the two guide strips (1111) are respectively embedded in the corresponding slide grooves (31) and form a sliding fit with the slide grooves (31).

6. The gantry hoisting device according to claim 5, wherein, Each positioning hole (112) is opened on the lower side of the crossbeam (11), and each positioning hole (112) is arranged in sequence at equal intervals along the length direction of the crossbeam (11).

7. The gantry crane lifting equipment according to claim 6, characterized in that, The limiting block (21) is installed at a position of the guide block (3) outside the guide groove (111).

8. A gantry hoisting device according to claim 7, characterized in that, Support rods (12) are arranged at both ends of the crossbeam (11), and the rod length directions of the two support rods (12) extend in the vertical direction.

9. The gantry hoisting equipment according to claim 8, characterized in that, A diagonal brace (13) is fixedly installed at the junction of the cross beam (11) and the support rod (12) to cooperate with the cross beam (11) and the support rod (12) to form a triangular stable structure.

10. A gantry hoisting device according to claim 9, characterized in that, A support plate (14) is fixedly mounted on the bottom end of the support rod (12), and a locking hole (141) is provided on the support plate (14) for an expansion screw to pass through so as to fix the support plate (14) on the ground.

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