A pry bar apparatus for replacing a conveyor belt idler

Abstract

This utility model discloses a pry bar device for replacing conveyor belt idlers, including a pry bar front end. An idler retaining mechanism is provided in the middle of one side of the pry bar front end through a through hole. The idler retaining mechanism includes a connecting support shaft, with limit sliding blocks fixedly connected to both ends of the connecting support shaft. A slidable support shaft is slidably connected to the inner wall of the limit sliding blocks. Through the pry bar front end and the idler retaining mechanism, before the idler is pried up by the pry bar front end, a retaining gripper is first tightly fastened to the surface of the pry bar. The front end of the retaining gripper firmly locks into the journal or tube of the idler, forming a mechanical interlock. This temporarily makes the pry bar, gripper, and idler a single unit, eliminating the possibility of the idler slipping off the pry bar front end. This allows for controllable and stable movement of the idler during operation, preventing injury to workers due to slippage and reducing operational risks.

Description

Technical Field

[0001] This utility model relates to the field of crowbar equipment processing, and in particular to a crowbar equipment for replacing conveyor belt idlers. Background Technology

[0002] A crowbar device involves inserting one end of a crowbar under a heavy object, using a fulcrum as support, and pressing down on the long end to generate tremendous force to move objects that would otherwise be impossible to move by hand. This is especially useful in conveyor belt systems where there are a large number of idlers that need to be replaced frequently. Due to the confined space, heavy weight, and tension, replacement work is very difficult and dangerous. Operators can use a crowbar to generate enough force to lift and move idlers with relatively little force, making it possible for a single person to replace heavy idlers and greatly reducing labor intensity.

[0003] However, the existing pry bar device for replacing conveyor belt idlers still has some problems in actual use: the tip of the pry bar may suddenly slip off due to oil stains, rust, or mismatched curvature on the idler shaft head or bracket surface, or the pry bar head shape and the contact area with the idler are too small or the angle is not suitable, making it difficult to effectively transmit force. The operator may fall backward or to the side, hitting the surrounding machinery, steel structure or the ground, causing injury and threatening their life. Utility Model Content

[0004] This invention provides a pry bar device for replacing conveyor belt idlers, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pry bar device for replacing conveyor belt idlers includes a pry bar front end, and an idler retaining mechanism is provided in the middle of one side of the pry bar front end through a through hole.

[0007] The idler roller fixing mechanism includes a connecting support shaft, both ends of which are fixedly connected to a limiting slide block. A slidable support shaft is slidably connected to the inner wall of the limiting slide block. A fixing gripping rod is fixedly connected to the surface of the slidable support shaft. A limiting hole plate is fixedly connected to one end of the limiting slide block. A limiting bolt is inserted into one side of the limiting hole plate through an insertion hole.

[0008] As a further improvement to this technical solution: the connecting support shaft rotates through a through hole in the middle of one side of the front end of the pry bar, and one end of the limiting bolt is inserted into the middle of one side of the fixing grab rod through a socket.

[0009] As a further improvement to this technical solution: a rectangular insert is slidably connected to one end of the front end of the crowbar, a foldable bracket is slidably connected to one side of the surface of the rectangular insert, and a limit nut is threadedly connected to one end of the rectangular insert.

[0010] As a further improvement to this technical solution: a U-shaped buckle is inserted into the middle of the front of the foldable bracket, a rotating block is fixedly connected to one end of the U-shaped buckle, a fixed block is rotatably connected to one end of the rotating block through a rotating shaft, the lower end of the fixed block is fixedly connected to the side of the front of the foldable bracket near the middle, and a quick-release bolt is slidably connected to one side of the U-shaped buckle through a through hole.

[0011] As a further improvement to this technical solution: a storage slot is provided on one side of the central part of the front of the foldable bracket, and an anti-slip wheel assembly is rotatably connected to the inner wall of the storage slot via a pivot.

[0012] As a further improvement to this technical solution: a fixing block two is fixedly connected to the middle of one side of the foldable bracket, and a limiting plug two is slidably connected to one end of the fixing block two. One end of the limiting plug two is inserted into one side of the anti-slip wheel assembly through a socket.

[0013] As a further improvement to this technical solution: the top of the back of the foldable bracket is fixedly connected to an anti-slip grip bar, and a storage groove is provided on the top of one side of the foldable bracket, with a closed cover plate slidably connected to the inner wall of the storage groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By setting up the front end of the crowbar and the idler roller fixing mechanism, before the idler roller is pried up by the front end of the crowbar, the fixing grab bar is first tightly fastened to the surface of the crowbar. The front end of the fixing grab bar will be firmly locked in the journal or tube of the idler roller, forming a mechanical interlock. This makes the crowbar, grab bar and idler roller temporarily become a whole, eliminating the possibility of the idler roller slipping off the front end of the crowbar. During operation, the idler roller can move in a controllable and stable manner, avoiding injury to the operator due to the idler roller slipping off and reducing the risk of operation.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a front structural diagram of a pry bar device for replacing conveyor belt idlers proposed in this utility model.

[0019] Figure 2 This is a schematic diagram showing the disassembled structure of a pry bar device for replacing conveyor belt idlers proposed in this utility model.

[0020] Figure 3 This is a top view schematic diagram of a pry bar device for replacing conveyor belt idlers proposed in this utility model;

[0021] Figure 4 This utility model proposes a pry bar device for replacing conveyor belt idlers. Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the idler roller retaining mechanism of a pry bar device for replacing conveyor belt idlers, as proposed in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. The tip of the crowbar;

[0025] 2. Idler roller fixing mechanism; 201. Connecting support shaft; 202. Limiting slide block; 203. Sliding support shaft; 204. Fixing gripper rod; 205. Limiting perforated plate; 206. Limiting bolt one;

[0026] 3. Rectangular insert block; 4. Foldable bracket; 5. Limiting nut; 6. U-shaped buckle; 7. Rotating block; 8. Fixing block one; 9. Quick-release bolt; 10. Storage slot one; 11. Anti-slip wheel assembly; 12. Fixing block two; 13. Limiting bolt two; 14. Anti-slip grip bar; 15. Storage slot two; 16. Enclosed cover plate. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0028] Please see Figures 1-4 In this embodiment of the utility model, a pry bar device for replacing conveyor belt idler rollers includes a pry bar front end 1, and an idler roller fixing mechanism 2 is provided in the middle of one side of the pry bar front end 1 through a through hole.

[0029] The idler roller fixing mechanism 2 includes a connecting support shaft 201. Both ends of the connecting support shaft 201 are fixedly connected to a limiting slide block 202. The inner wall of the limiting slide block 202 is slidably connected to a slidable support shaft 203. The surface of the slidable support shaft 203 is fixedly connected to a fixing gripping rod 204. One end of the limiting slide block 202 is fixedly connected to a limiting hole plate 205. One side of the limiting hole plate 205 is connected to a limiting plug 206 through an insertion hole.

[0030] The limiting plate 205 has several through holes that are compatible with the limiting bolt 206. While adjusting the rotation range of the sliding support shaft 203 and the fixing gripper 204, the limiting bolt 206 will lock the limiting plate 205 and the fixing gripper 204 together, so that the limiting plate 205, the limiting bolt 206 and the fixing gripper 204 form a whole. The front end of the fixing gripper 204 is bent downward, so that it will tightly fasten the surface of the idler roller and prevent the idler roller from detaching from the pry bar.

[0031] Please see Figure 4 The connecting shaft 201 rotates through a through hole in the middle of one side of the front end 1 of the pry bar, and one end of the limiting plug 206 is inserted into the middle of one side of the fixing grab bar 204 through an insertion hole.

[0032] The insertion end of the limiting plug 206 is covered with rubber, which makes the limiting plug 206 and the retaining lever 204 fit tightly against the contact surface, generating huge static friction. This can effectively resist the gradual loosening or even dislodgement of the plug caused by vibration, impact or slight external force, and ensure continuous stability in the working environment.

[0033] Please see Figures 1-3 A rectangular insert 3 is slidably connected to one end of the front end 1 of the crowbar, and a foldable bracket 4 is slidably connected to one side of the surface of the rectangular insert 3. A limit nut 5 is threadedly connected to one end of the rectangular insert 3.

[0034] The crowbar is made of lightweight, high-strength materials, such as 40Cr or aluminum alloy. The one-piece crowbar body consists of a straight section of foldable bracket 4 and a curved section of the crowbar front end 1. The two sections have a smooth transition from 90 degrees to 120 degrees. The foldable bracket 4 has anti-slip texture, which greatly increases the friction between the hand and the surface of the foldable bracket 4, providing a firm grip and making the operation more reliable and less strenuous. It also avoids accidents caused by slipping and pinching fingers or losing control of the foldable bracket 4.

[0035] While the rectangular insert 3 connects the foldable bracket 4 to the front end 1 of the crowbar, one end of the rectangular insert 3 is provided with a cylindrical threaded protrusion that matches the internal thread of the limit nut 5. When the limit nut 5 is installed at one end of the rectangular insert 3, the foldable bracket 4 and the front end 1 of the crowbar are tightly connected to each other. This allows the front end 1 of the crowbar to be disassembled during regular maintenance without having to maintain the crowbar as a whole, thus increasing the flexibility of crowbar maintenance.

[0036] Please see Figures 1-3 A U-shaped buckle 6 is inserted into the middle of the front of the foldable bracket 4. A rotating block 7 is fixedly connected to one end of the U-shaped buckle 6. A fixed block 8 is rotatably connected to one end of the rotating block 7 through a rotating shaft. The lower end of the fixed block 8 is fixedly connected to the side of the front of the foldable bracket 4 near the middle. A quick-release bolt 9 is slidably connected to one side of the U-shaped buckle 6 through a through hole.

[0037] After unfolding the foldable bracket 4, insert the U-shaped buckle 6 into the corresponding hole on the foldable bracket 4, and insert the quick-release bolt 9 into the U-shaped buckle 6 to fix the foldable bracket 4 in place. When the foldable bracket 4 is folded inward, the overall dimensions of the equipment, especially the width and height, will be significantly reduced, thereby enabling the foldable bracket 4 to be folded inward or stored.

[0038] Please see Figures 1-3 The foldable bracket 4 has a storage slot 10 on one side of the center of the front. The inner wall of the storage slot 10 is rotatably connected to the anti-slip wheel assembly 11 via a pivot.

[0039] The length and width of the storage slot 10 are suitable for storing and placing the anti-slip wheel assembly 11. The anti-slip wheel assembly 11 consists of an anti-slip wheel and a connecting block that can be stored and adjusted. The connecting block is inserted into the limiting plug 13. The anti-slip wheel is covered with a rubber layer. Because rubber is elastic, it can absorb the vibration and impact caused by uneven ground during the process of the roller being pried up by the pry bar, and increase the grip.

[0040] Please see Figure 5 A fixing block 2 12 is fixedly connected to the middle of one side of the foldable bracket 4. One end of the fixing block 2 12 is slidably connected to the limiting plug 2 13. One end of the limiting plug 2 13 is inserted into one side of the anti-slip wheel assembly 11 through an opening.

[0041] When the anti-slip wheel assembly 11 is unfolded, the limiting plug 2 13 is inserted into the connecting block for storing and adjusting on the anti-slip wheel assembly 11, so that the unfolded position of the anti-slip wheel assembly 11 is fixed, allowing the anti-slip wheel assembly 11 to be used normally in operation.

[0042] Please see Figures 1-2The top of the back of the foldable bracket 4 is fixedly connected to an anti-slip grip bar 14, and a storage slot 15 is opened on the top of one side of the foldable bracket 4. A closed cover plate 16 is slidably connected to the inner wall of the storage slot 15.

[0043] The inner side of the anti-slip grip 14 has a semi-circular groove that fits the fingers, so that when the operator uses the crowbar, even if the palm is sweaty, oily, or when it needs to be operated with great force, the crowbar is difficult to slip out of the hand. This is the most critical guarantee to prevent the crowbar from flying out and injuring people.

[0044] The storage slot 2 15 can store the tools that the operator usually uses. At the same time, the upper and lower positions of the corresponding side of the closed cover 16 are fixedly connected with the insertion rods. The insertion rods can drive the closed cover 16 to slide in the corresponding holes on the foldable bracket 4, so that the closed cover 16 can be tightly inserted into the storage slot 2 15, preventing the tools from falling out of the storage slot 2 15 and being lost.

[0045] The working principle of this utility model is as follows:

[0046] First, unfold the foldable bracket 4 and lock it in place with the U-shaped buckle 6. The connecting support shaft 201 rotates within a limited range on the front end 1 of the pry bar. The sliding support shaft 203 slides within a limited range on the limiting slide block 202. The total length of the fixed gripping rod 204 and the limiting slide block 202 can be increased or decreased to adapt to the positioning of the fixed gripping rod 204 on the idler roller.

[0047] Finally, the retaining gripper 204 rotates accordingly, and one end of the retaining gripper 204 is locked onto one end of the idler roller surface. The limiting bolt 206 is inserted into the corresponding suitable insertion hole on the limiting hole plate 205 and continues to be inserted into the insertion hole opened on the retaining gripper 204, so that the limiting hole plate 205, the retaining gripper 204 and the limiting bolt 206 form a whole to adapt to the outer diameter of the idler roller surface. The retaining gripper 204 securely locks the idler roller, and the anti-slip gripper 14 is used to pry one end of the idler roller out of the idler roller slot. Then, the other end of the idler roller is pried up in the same way, and the old idler roller is replaced on site.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A crowbar device for replacing a conveyor belt idler, comprising a crowbar front end (1), characterized in that: The middle part of one side of the front end (1) of the crowbar is provided with a roller fixing mechanism (2) through a through hole; The idler roller fixing mechanism (2) includes a connecting support shaft (201), both ends of which are fixedly connected to a limiting slide block (202). The inner wall of the limiting slide block (202) is slidably connected to a sliding support shaft (203), and a fixing gripper (204) is fixedly connected to the surface of the sliding support shaft (203). One end of the limiting slide block (202) is fixedly connected to a limiting hole plate (205), and a limiting plug (206) is inserted into one side of the limiting hole plate (205) through an insertion hole.

2. A pry bar apparatus for replacing a conveyor belt idler as defined in claim 1, wherein, The connecting shaft (201) rotates through a through hole in the middle of one side of the front end (1) of the pry bar, and one end of the limiting plug (206) is inserted into the middle of one side of the fixing grab bar (204) through a socket.

3. A pry bar apparatus for replacing a conveyor belt idler as defined in claim 2, wherein, A rectangular insert (3) is slidably connected to one end of the front end (1) of the crowbar, and a foldable bracket (4) is slidably connected to one side of the surface of the rectangular insert (3). A limit nut (5) is threadedly connected to one end of the rectangular insert (3).

4. A crowbar apparatus for replacing a conveyor belt idler as defined in claim 3, wherein, A U-shaped buckle (6) is inserted into the middle of the front of the foldable bracket (4). A rotating block (7) is fixedly connected to one end of the U-shaped buckle (6). A fixed block (8) is rotatably connected to one end of the rotating block (7) through a rotating shaft. The lower end of the fixed block (8) is fixedly connected to the side of the front of the foldable bracket (4) near the middle. A quick-release bolt (9) is slidably connected to one side of the U-shaped buckle (6) through a through hole.

5. A pry bar apparatus for replacing a conveyor belt idler as defined in claim 3, wherein, The foldable bracket (4) has a storage slot (10) on one side of the front center. The inner wall of the storage slot (10) is rotatably connected to an anti-slip wheel assembly (11) via a pivot.

6. A crowbar apparatus for replacing a conveyor belt idler as defined in claim 5, wherein, A fixing block two (12) is fixedly connected to the middle of one side of the foldable bracket (4). One end of the fixing block two (12) is slidably connected to a limiting plug two (13). One end of the limiting plug two (13) is inserted into one side of the anti-slip wheel assembly (11) through an opening.

7. A pry bar device for replacing conveyor belt idlers according to claim 5, characterized in that, The top of the back of the foldable bracket (4) is fixedly connected to an anti-slip grip bar (14), and a storage groove (15) is opened on the top of one side of the foldable bracket (4). A closed cover plate (16) is slidably connected to the inner wall of the storage groove (15).

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