Core rod handle device for punching cylindrical product

Abstract

The utility model discloses a core rod handle device for punching a cylindrical product, which relates to the technical field of core rod handles for punching the cylindrical product and comprises a cylindrical first core rod, one end of the first core rod is connected with a second core rod in a sliding manner, and one end of the second core rod is connected with a third core rod in a sliding manner. One end of the third core rod is fixedly connected with a conical head and provided with two crushing teeth, the outer surface of the second core rod is fixedly connected with a fixing block, the other end of the third core rod is fixedly connected with a first rack, and tooth blocks are arranged at the upper end and the lower end of the first rack. The third core rod is pulled to enable the third core rod and the second core rod to slide, the upper ends and the lower ends of the two transmission gears rotate between the first rack and the two second racks in a meshed mode, the positioning block is pressed, the spring is matched with the U-shaped groove, the lower end of the positioning rod is disengaged from the groove, and the positioning rod is matched with the groove, so that positioning is achieved. The position of the third core rod is fixed, so that the core rods can stretch as required.

Description

Technical Field

[0001] The utility model relates to the technical field of core rod handles for perforating cylindrical products, and particularly to a core rod handle device for perforating cylindrical products. Background Art

[0002] Some cylindrical products need to be drilled according to requirements.

[0003] However, the existing core rod handles for perforating cylindrical products cannot extend and retract the core rod according to requirements; the existing handle is fixed at one end of the core rod, which is inconvenient for installing and disassembling the handle. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to provide a core rod handle device for perforating cylindrical products.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A core rod handle device for perforating cylindrical products, including a first core rod, the first core rod is cylindrical, one end of the first core rod is slidably connected with a second core rod, one end of the second core rod is slidably connected with a third core rod, one end of the third core rod is fixedly connected with a tapered head, two crushing teeth are arranged at one end of the third core rod, a fixed block is fixedly connected to the outer surface of the second core rod, a first rack is fixedly connected to the other end of the third core rod, tooth blocks are arranged at both the upper and lower ends of the first rack, a placement hole is opened at the other end of the second core rod, two U-shaped fixed frames are fixedly connected to the inside of the placement hole, a transmission gear is rotatably connected to the inner side of each of the two fixed frames, two second racks are fixedly connected to the inside of the first core rod, the first rack is arranged between the two second racks, the two transmission gears are respectively meshed and connected between the first rack and the two second racks, and a positioning mechanism is fixedly connected to the outer surface of the fixed block.

[0007] Preferably, the positioning mechanism includes a limit block, two limit blocks are fixed on the outer surface of the fixed block, a positioning block is rotatably connected to the inner side of the two limit blocks, and a U-shaped groove is opened on the outer surface of the fixed block.

[0008] Preferably, a spring is fixedly connected to the inside of the U-shaped groove, the upper end of the spring is fixedly connected to one end of the positioning block, and a positioning rod is fixedly connected to the other end of the positioning block.

[0009] Preferably, three grooves are uniformly opened on the outer surface of the third core rod, and the three grooves are arranged in a straight line, the lower end of the positioning rod is arranged inside the groove, and a control block is fixedly connected to the other end of the first core rod.

[0010] Preferably, a ring-shaped reinforcing block is slidably connected to one side of the control block. Four sliding blocks are fixedly connected to the inner side of the reinforcing block. Four sliding grooves are formed in one side of the control block, and the four sliding blocks respectively slide inside the four sliding grooves.

[0011] Preferably, four L-shaped round rod-shaped insertion rods are fixedly connected to one side of the reinforcing block, and a threaded block is arranged at one end of the insertion rod.

[0012] Preferably, four round holes are formed in one side of the control block, the four insertion rods are respectively inserted into the four round holes, and stoppers are threadedly connected to the outer surfaces of the four insertion rods.

[0013] Preferably, the diameters of the four stoppers are all larger than the diameters of the four round holes. A handle is fixedly connected to one side of the reinforcing block.

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

[0015] 1. In the present utility model, pulling the third core rod causes the third core rod and the second core rod to slide, so that the upper and lower ends of the two transmission gears mesh and rotate between the first rack and the two second racks. By pressing the positioning block, through the cooperation of the spring and the U-shaped groove, the lower end of the positioning rod is disengaged from the groove, and the position of the third core rod is fixed through the cooperation of the positioning rod and the groove, facilitating the telescopic core rod according to requirements.

[0016] 2. In the present utility model, by moving the handle, the reinforcing block is moved to the outer surface of the control block, so that the four insertion rods are respectively inserted into the four round holes, and the four stoppers are respectively moved on the outer surfaces of the four insertion rods, facilitating the installation and disassembly of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is a three-dimensional practical view of the present utility model;

[0019] Figure 2 is a schematic structural view of the reinforcing block and the sliding block of the present utility model;

[0020] Figure 3 is a schematic structural view of the first rack and the fixing frame of the present utility model;

[0021] Figure 4 is a schematic structural view of the second core rod and the fixing block of the present utility model;

[0022] Figure 5Schematic diagram of the third core rod and crushing teeth structure of the present utility model;

[0023] Figure 6 Schematic diagram of the round hole and sliding groove structure of the present utility model;

[0024] Reference numerals in the figure: 1, the first core rod; 2, the second core rod; 3, the third core rod; 4, the conical head; 5, the crushing teeth; 6, the fixed block; 7, the first rack; 8, the fixed frame; 9, the transmission gear; 10, the second rack; 11, the limit block; 12, the positioning block; 13, the spring; 14, the positioning rod; 15, the groove; 16, the control block; 17, the reinforcement block; 18, the sliding groove; 19, the sliding block; 20, the round hole; 21, the insertion rod; 22, the handle. Specific embodiments

[0025] 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.

[0026] Embodiment 1: This embodiment provides a core rod handle device for perforating cylindrical products. Refer to Figure 1-6 , specifically, it includes a first core rod 1. The first core rod 1 is cylindrical. One end of the first core rod 1 is slidably connected to a second core rod 2. One end of the second core rod 2 is slidably connected to a third core rod 3. One end of the third core rod 3 is fixedly connected to a conical head 4. One end of the third core rod 3 is provided with two crushing teeth 5. The outer surface of the second core rod 2 is fixedly connected to a fixed block 6. The other end of the third core rod 3 is fixedly connected to a first rack 7. Tooth blocks are provided at both the upper and lower ends of the first rack 7. A placement hole is opened at the other end of the second core rod 2. Two U-shaped fixed frames 8 are fixedly connected inside the placement hole. Transmission gears 9 are rotatably connected to the inner sides of the two fixed frames 8. Two second racks 10 are fixedly connected inside the first core rod 1. The first rack 7 is disposed between the two second racks 10. The two transmission gears 9 are respectively meshed and connected between the first rack 7 and the two second racks 10. A positioning mechanism is fixedly connected to the outer surface of the fixed block 6;

[0027] The positioning mechanism includes limit blocks 11. The two limit blocks 11 are fixed to the outer surface of the fixed block 6. A positioning block 12 is rotatably connected to the inner sides of the two limit blocks 11. A U-shaped groove is opened on the outer surface of the fixed block 6. A spring 13 is fixedly connected inside the U-shaped groove. The upper end of the spring 13 is fixedly connected to one end of the positioning block 12. The other end of the positioning block 12 is fixedly connected to a positioning rod 14. Three grooves 15 are evenly opened on the outer surface of the third core rod 3, and the three grooves 15 are arranged in a straight line. The lower end of the positioning rod 14 is disposed inside the groove 15. The other end of the first core rod 1 is fixedly connected to a control block 16;

[0028] The two second racks 10 are fixed inside the first core rod 1, and the two transmission gears 9 are rotated and arranged on the inner side of the placement hole at one end of the second core rod 2 through the two fixing frames 8. By pulling the third core rod 3, the third core rod 3 slides at one end of the second core rod 2, and the second core rod 2 slides at one end of the first core rod 1, so that the two transmission gears 9 rotate on the inner sides of the two fixing frames 8 respectively, so that the upper and lower ends of the two transmission gears 9 mesh and rotate between the first rack 7 and the two second racks 10, so as to facilitate the extension and contraction of the third core rod 3 and the second core rod 2. By pressing the positioning block 12, the spring 13 and the U-shaped groove cooperate to make the lower end of the positioning rod 14 disengage from the groove 15, and the positioning rod 14 and the groove 15 cooperate to fix the position of the third core rod 3, and the position between the first core rod 1, the second core rod 2 and the third core rod 3 is controlled. By rotating the handle 22, the cone head 4 and the two crushing teeth 5 cooperate to perforate the cylinder, so as to facilitate the extension and contraction of the core rod according to needs.

[0029] Embodiment 2: In embodiment 1, there is still a problem that the handle 22 is fixed at one end of the core rod, which makes it inconvenient to install and remove the handle 22. Therefore, based on embodiment 1, this embodiment also includes:

[0030] In the specific implementation process, Figure 1 , Figure 2 and Figure 6 As shown, a ring-shaped reinforcement block 17 is slidably connected to one side of the control block 16, and four sliding blocks 19 are fixedly connected to the inner side of the reinforcement block 17. Four sliding grooves 18 are provided on one side of the control block 16, and the four sliding blocks 19 slide in the four sliding grooves 18 respectively. Four L-shaped round rod-shaped plug rods 21 are fixedly connected to one side of the reinforcement block 17, and a threaded block is provided at one end of the plug rod 21. Four round holes 20 are provided on one side of the control block 16, and the four plug rods 21 are respectively inserted in the four round holes 20. The outer surfaces of the four plug rods 21 are threaded rods connected to blocks, and the diameters of the four blocks are larger than the diameters of the four round holes 20. A handle 22 is fixedly connected to one side of the reinforcement block 17;

[0031] By moving the handle 22, the reinforcement block 17 is moved to the outer surface of the control block 16, so that the four sliding blocks 19 slide inside the four sliding grooves 18 respectively, and the position between the reinforcement block 17 and the control block 16 is controlled, so that the four insertion rods 21 are respectively inserted into the inside of the four circular holes 20, and the four stoppers are respectively moved on the outer surfaces of the four insertion rods 21, and the control block 16 is fixed on the inner side of the reinforcement block 17, so as to facilitate the installation and disassembly of the handle 22.

[0032] Specifically, the working principle and operation method of the utility model are as follows:

[0033] Step 1: By pulling the third core rod 3, the third core rod 3 slides at one end of the second core rod 2, and the second core rod 2 slides at one end of the first core rod 1, so that the two transmission gears 9 rotate inside the two fixed brackets 8 respectively, and the upper and lower ends of the two transmission gears 9 engage and rotate between the first rack 7 and the two second racks 10, facilitating the telescoping of the third core rod 3 and the second core rod 2. By pressing the positioning block 12, through the cooperation of the spring 13 and the U-shaped groove, the lower end of the positioning rod 14 is disengaged from the groove 15. Through the cooperation of the positioning rod 14 and the groove 15, the position of the third core rod 3 is fixed, and the positions among the first core rod 1, the second core rod 2 and the third core rod 3 are controlled. By rotating the handle 22, the cone head 4 and the two crushing teeth 5 cooperate to perforate the cylinder, facilitating the telescoping of the core rod according to requirements;

[0034] Step 2: By moving the handle 22, the reinforcement block 17 is moved to the outer surface of the control block 16, so that the four insertion rods 21 are respectively inserted into the four circular holes 20 inside. The four stop blocks are respectively moved on the outer surfaces of the four insertion rods 21, and the control block 16 is fixed inside the reinforcement block 17, facilitating the installation and disassembly of the handle 22;

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A core rod handle device for perforating cylindrical products, comprising a first core rod (1), characterized in that: The first core rod (1) is cylindrical, one end of the first core rod (1) is slidably connected to the second core rod (2), one end of the second core rod (2) is slidably connected to the third core rod (3), one end of the third core rod (3) is fixedly connected to a cone head (4), one end of the third core rod (3) is provided with two crushing teeth (5), the outer surface of the second core rod (2) is fixedly connected to a fixed block (6), the other end of the third core rod (3) is fixedly connected to a first rack (7), the upper and lower ends of the first rack (7) are both provided with tooth blocks, A placement hole is provided at the other end of the second core rod (2), and two U-shaped block-shaped fixing frames (8) are fixedly connected inside the placement hole. The inner sides of the two fixing frames (8) are rotatably connected with transmission gears (9). Two second racks (10) are fixedly connected inside the first core rod (1), and the first rack (7) is arranged between the two second racks (10). The two transmission gears (9) are respectively meshed and connected between the first rack (7) and the two second racks (10). A positioning mechanism is fixedly connected to the outer surface of the fixing block (6).

2. The core rod handle device for perforating cylindrical products according to claim 1, characterized in that: The positioning mechanism comprises a limit block (11), two limit blocks (11) are fixed on the outer surface of a fixed block (6), the inner sides of the two limit blocks (11) are rotatably connected with a positioning block (12), and the outer surface of the fixed block (6) is provided with a U-shaped groove.

3. The core rod handle device for perforating cylindrical products according to claim 2, characterized in that: A spring (13) is fixedly connected inside the U-shaped groove, the upper end of the spring (13) is fixedly connected to one end of a positioning block (12), and the other end of the positioning block (12) is fixedly connected to a positioning rod (14).

4. The core rod handle device for perforating cylindrical products according to claim 3, characterized in that: The outer surface of the third core rod (3) is evenly provided with three grooves (15), and the three grooves (15) are arranged in a straight line. The lower end of the positioning rod (14) is arranged inside the groove (15), and the other end of the first core rod (1) is fixedly connected to a control block (16).

5. The core rod handle device for perforating cylindrical products according to claim 4, characterized in that: A circular ring-shaped reinforcement block (17) is slidably connected to one side of the control block (16); four sliding blocks (19) are fixedly connected to the inner side of the reinforcement block (17); four sliding grooves (18) are provided on one side of the control block (16); and the four sliding blocks (19) slide inside the four sliding grooves (18) respectively.

6. The core rod handle device for perforating cylindrical products according to claim 5, characterized in that: Four L-shaped round rod-shaped insertion rods (21) are fixedly connected to one side of the reinforcement block (17), and one end of the insertion rod (21) is provided with a threaded block.

7. The core rod handle device for perforating cylindrical products according to claim 6, characterized in that: Four circular holes (20) are opened on one side of the control block (16), and the four insertion rods (21) are respectively inserted into the four circular holes (20), and the outer surfaces of the four insertion rods (21) are all threaded and connected to stoppers.

8. The core rod handle device for perforating cylindrical products according to claim 7, characterized in that: The diameters of the four stoppers are all larger than the diameters of the four circular holes (20). A handle (22) is fixedly connected to one side of the reinforcement block (17).

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