Quick wedge key pulling device

Abstract

The utility model belongs to the technical field of wedge keys, and particularly relates to a quick wedge key pulling device which comprises a rod body connecting piece, an extension support is fixedly connected to the rod body connecting piece, a round rod is fixedly connected to the extension support, a crow plate is rotationally connected to the outer side of the round rod and comprises a plate body, and a top plate is fixedly connected to one end of the plate body. The other end of the plate body is fixedly connected with a knocking plate, a center groove is formed in the middle of the plate body, the length of the center groove in the axis direction is larger than the diameter of the positioning ejector block, two adjusting sets are installed on the plate body, and the positioning ejector block located in the center groove is installed on the adjusting sets. According to the device, the knocking mode when a hammer pushes the hook-headed wedge key can be changed, the hammer can be vigorously used for knocking the hook-headed wedge key, the key pulling efficiency of the hook-headed wedge key is improved, and mistaken damage to an asphalt stirring structure when the hook-headed wedge key is vigorously knocked is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wedge keys, and in particular relates to a fast wedge key pulling device. Background Art

[0002] In the field of construction and road construction, especially in the process of asphalt paving, asphalt mixing structures are needed. When maintaining, repairing or replacing asphalt mixing structures, it is often necessary to install or remove the hook wedge key;

[0003] When pulling out a key, it is usually necessary to use a hammer to strike the hook wedge key. Since it is not easy to control the movement of the hammer when using a hammer to strike the wedge key with a large force, it is easy to cause accidental strike damage to the hook wedge key. In order to reduce the damage, the operator will use a hammer to strike the wedge key with a smaller force. However, when using a small force to strike the hook wedge key to pull out the key, it is necessary to use the hammer to strike the hook wedge key multiple times to complete the key pulling operation. Multiple hammer strikes cause the key pulling operation to take too long. Utility Model Content

[0004] The purpose of the utility model is to provide a fast wedge key pulling device, which can change the striking mode when the hammer pushes the hook head wedge key, and can use the hammer to strike the hook head wedge key vigorously, thereby improving the efficiency of pulling out the hook head wedge key and reducing the accidental damage to the asphalt mixing structure caused by striking the hook head wedge key vigorously.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A rapid wedge key pulling device comprises a rod body connecting piece, an extension bracket is fixedly connected to the rod body connecting piece, a round rod is fixedly connected to the extension bracket, and a pry plate is rotatably connected to the outer side of the round rod.

[0007] Furthermore, the pry plate includes a plate body, one end of which is fixedly connected to a top plate, the other end of which is fixedly connected to a knocking plate, a center groove is opened in the middle of the plate body, and the length of the center groove in the axial direction is greater than the diameter of the positioning top block.

[0008] Furthermore, two adjustment groups are installed on the plate body, and a positioning top block located inside the central groove is installed on the adjustment group.

[0009] Furthermore, the adjustment group includes a second screw rod threadedly connected to the plate body, and one end of the second screw rod extends into the center groove and is rotatably connected to the positioning top block.

[0010] Furthermore, working grooves are provided on the plate body at both ends of the central groove, and one end of the second screw rod away from the positioning top block is located inside the working groove.

[0011] Furthermore, the rod body connecting member includes an outer bracket fixedly connected to the end of the extension bracket away from the round rod, and side panels are provided on both sides of the outer bracket, and the two side panels are threadedly connected with a first screw rod, and the ends of the two first screw rods close to each other are rotatably connected with a clamping plate, and a guide rod is fixedly connected to the clamping plate, and the guide rod and the side plate are slidably connected.

[0012] The technical effects achieved by this utility model are:

[0013] The utility model discloses a quick wedge key extraction device which increases the distance between the hammer and the asphalt mixing structure by using a pry plate, thereby reducing the probability of the hammer contacting the asphalt mixing structure when the hammer moves rapidly and greatly, thereby changing the striking mode when the hammer pushes the hook head wedge key. The hammer can be used to strike the hook head wedge key with great force, thereby improving the efficiency of extracting the hook head wedge key and reducing accidental damage to the asphalt mixing structure caused by striking the hook head wedge key with great force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure when the utility is used;

[0015] Figure 2 It is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a practical Figure 2 Schematic diagram of the local structure;

[0017] Figure 4 It is a structural cut-away side view of the practical skid plate.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Shaft; 2. Mounting ring; 3. Stirring blade; 4. Keyway; 5. Hook wedge key; 6. Rod body connector; 7. Extension bracket; 8. Round rod; 9. Pry plate; 10. Outer bracket; 11. First screw; 12. Clamping piece; 13. Guide rod; 14. Plate; 15. Knocking plate; 16. Top plate; 17. Center groove; 18. Positioning top block; 19. Working groove; 20. Second screw. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0021] See also Figure 1As shown, an asphalt mixing structure is introduced here, which includes a shaft rod 1, a mounting ring 2 is installed on the outer side of the shaft rod 1, and a stirring blade 3 is fixedly connected to the outer side of the mounting ring 2. When the shaft rod 1 rotates, the stirring blade 3 can be driven to rotate through the mounting ring 2, so that the stirring blade 3 stirs the asphalt material. A key slot 4 is provided on the inner wall of the mounting ring 2, and a hook wedge key 5 is installed inside the key slot 4. The opposite sides of the key slot 4 and the hook wedge key 5 are both inclined surfaces. The hook wedge key 5 is struck hard to move the hook wedge key 5 toward the mounting ring 2, so that the hook wedge key 5 can be tightly fixed inside the key slot 4 and the mounting ring 2 can be tightly fixed on the outer side of the shaft rod 1; when disassembling, the hook wedge key 5 can be moved out of the key slot 4 by striking the hook wedge key 5 in the opposite direction.

[0022] like Figure 1-4 As shown, in order to quickly complete the wedge key extraction installation of the hook wedge key 5 and reduce the damage to the shaft rod 1, the installation ring 2 and the stirring blade 3 caused by accidental knocking during knocking, a quick wedge key extraction device is disclosed herein, which is specifically, a quick wedge key extraction device includes a rod body connecting member 6, the rod body connecting member 6 can be detachably and quickly fixedly connected to the outer side of the shaft rod 1, an extension bracket 7 is fixedly connected to the rod body connecting member 6, and a round rod 8 is fixedly connected to the extension bracket 7. The extension bracket 7 can be an L-shaped bracket or an inclined bracket, so that the round rod 8 can be connected to the rod The body connector 6 is staggered, and the outer side of the round rod 8 is rotatably connected with a pry plate 9. At this time, by abutting one end of the pry plate 9 against the hook wedge key 5, and then using a hammer to knock the other end of the pry plate 9 to rotate the pry plate 9, the hook wedge key 5 can be pushed by the pry plate 9. At this time, the distance between the hammer and the asphalt mixing structure can be increased by the pry plate 9, thereby reducing the damage to the asphalt mixing structure caused by the large-scale and rapid movement of the hammer. The hammer can be used to apply a large force to the hook wedge key 5 to push it, thereby improving the efficiency of pulling out the hook wedge key 5.

[0023] like Figure 1-3 As shown, the pry plate 9 includes a plate body 14, one end of the plate body 14 is fixedly connected to a top plate 16, the top plate 16 is used to contact the hook wedge key 5, the other end of the plate body 14 is fixedly connected to a striking plate 15, a hammer can strike the striking plate 15, a center groove 17 is opened in the middle position of the plate body 14, the length of the center groove 17 in the axial direction is greater than the diameter of the positioning top block 18, at this time, by adjusting the position of the positioning top block 18 in the center groove 17, the distance between the top plate 16 and the hook wedge key 5 can be adjusted to adapt to the distance between the pry plate 9 and the hook wedge key 5, which is convenient for users to use.

[0024] And, if Figure 2-4As shown, two adjustment groups are installed on the plate body 14, and a positioning top block 18 located inside the central groove 17 is installed on the adjustment group. The positioning top block 18 is provided with an arc groove matched with the round rod 8 on the side facing the round rod 8, so that the two positioning top blocks 18 can position the round rod 8, and the adjustment group can drive the positioning top block 18 to move inside the central groove 17, so as to adjust the position of the positioning top block 18 and control the position of the round rod 8 inside the central groove 17.

[0025] like Figure 2-4 As shown, the adjustment group can be any structure for adjusting the position of the positioning top block 18, such as an electric push rod or a push plate. A screw rod is selected in the present technical solution. Specifically, the adjustment group includes a second screw rod 20 threadedly connected to the plate body 14, and one end of the second screw rod 20 extends to the inside of the center groove 17 and is rotatably connected to the positioning top block 18. At this time, the positioning top block 18 can be pushed by rotating the second screw rod 20 to adjust the position of the positioning top block 18. At the same time, working grooves 19 are provided on the plate body 14 and at both ends of the center groove 17. One end of the second screw rod 20 away from the positioning top block 18 is located inside the working groove 19. At this time, by storing the second screw rod 20 inside the working groove 19, the contact between the hammer and the second screw rod 20 can be reduced, and the damage to the second screw rod 20 caused by the hammer when striking can be reduced.

[0026] Among them, Figure 1-2 As shown, the rod body connecting member 6 includes an outer bracket 10 fixedly connected to the end of the extended bracket 7 away from the round rod 8, and side panels are provided on both sides of the outer bracket 10, and the first screws 11 are threadedly connected to the two side panels, and the ends of the two first screws 11 close to each other are rotatably connected to the clamping plates 12. At this time, by adjusting the position of the clamping plates 12 by the first screws 11, the two clamping plates 12 can be stably clamped on the outside of the shaft 1, and a guide rod 13 is fixedly connected to the clamping plates 12, and the guide rod 13 and the side panels are slidably connected, thereby completing the guide limit of the clamping plates 12.

[0027] The working principle of the utility model is: the rod body connecting part 6 is fixed to the outer side of the shaft rod 1, and one end of the pry plate 9 is abutted against the hook head wedge key 5, and then the other end of the pry plate 9 is knocked with a hammer to make the pry plate 9 rotate, so that the hook head wedge key 5 can be pushed by the pry plate 9 to allow the hook head wedge key 5 to enter the inside of the keyway 4, and the installation or key extraction of the hook head wedge key 5 can be completed.

[0028] In summary, the technical solution increases the distance between the hammer and the asphalt mixing structure through the pry plate 9, and reduces the probability of the hammer contacting the asphalt mixing structure when it moves rapidly and significantly, thereby changing the striking method of the hammer when pushing the hook wedge key 5. The hammer can be used to strike the hook wedge key 5 vigorously, thereby improving the efficiency of pulling out the hook wedge key 5 and reducing accidental damage to the asphalt mixing structure caused by vigorously striking the hook wedge key 5. Moreover, the installation and pulling out of the hook wedge key 5 can be completed by installing the rod connector 6 once, thereby further improving the efficiency of installing and pulling out the hook wedge key 5 when maintaining the asphalt mixing structure.

[0029] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A fast wedge key pulling device, characterized in that: It comprises a rod body connecting member (6), to which an extension bracket (7) is fixedly connected, to which a round rod (8) is fixedly connected, and a pry plate (9) is rotatably connected on the outer side of the round rod (8).

2. A fast wedge key pulling device according to claim 1, characterized in that: The pry plate (9) comprises a plate body (14), one end of the plate body (14) is fixedly connected to a top plate (16), the other end of the plate body (14) is fixedly connected to a knocking plate (15), a central groove (17) is provided in the middle of the plate body (14), and the length of the central groove (17) in the axial direction is greater than the diameter of the positioning top block (18).

3. A fast wedge key pulling device according to claim 2, characterized in that: Two adjustment groups are installed on the plate body (14), and a positioning top block (18) located inside the central groove (17) is installed on the adjustment group.

4. A rapid wedge key pulling device according to claim 3, characterized in that: The adjustment group comprises a second screw rod (20) threadedly connected to the plate body (14), and one end of the second screw rod (20) extends into the interior of the central groove (17) and is rotatably connected to the positioning top block (18).

5. A rapid wedge key pulling device according to claim 4, characterized in that: Working grooves (19) are provided on the plate body (14) at both ends of the central groove (17), and one end of the second screw rod (20) away from the positioning top block (18) is located inside the working groove (19).

6. A rapid wedge key pulling device according to claim 1, characterized in that: The rod body connecting member (6) comprises an outer bracket (10) fixedly connected to an end of the extension bracket (7) away from the round rod (8), side plates are arranged on both sides of the outer bracket (10), first screw rods (11) are threadedly connected to the two side plates, and the ends of the two first screw rods (11) close to each other are rotatably connected to clamping plates (12), and a guide rod (13) is fixedly connected to the clamping plate (12), and the guide rod (13) and the side plate are slidably connected.

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