Prying head with adjustable acting force point

Abstract

The utility model discloses a prying head with an adjustable acting force point, which comprises a tip part, the tip part is connected to one end of a head part, one end of the tip part is positioned inside the head part, the tip part and the head part are fixed by utilizing a fixing screw, one end of the head part is connected to the inside of a support body part, one end of the head part is connected with a handle part, and the handle part is connected with the tip part. A supporting mechanism is arranged on the outer surface of the supporting body part, the supporting mechanism is arranged to be of a height-adjustable structure with two supporting points, a worker installs a shaft assembly on a shaft and installs a locking gasket and a round nut, so that a claw piece of the locking gasket is aligned with a groove of the round nut, and then the locking gasket and the round nut are clamped. The head of the prying head is plugged into the gear box, the tip is attached to the locking gasket, then the adjusting screw is adjusted, the prying head tilts and bends the claw piece of the locking gasket by 90 degrees with the adjusting screw as a fulcrum, and workers can bend the locking gasket conveniently when assembling is conducted in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of production and assembly of mechanical transmission gearboxes, and particularly relates to a pry head with adjustable force application points. Background Technique

[0002] During the process of manufacturing production equipment, some mechanical output shaft components need to be tightened by using a round nut and a locking washer. Align any claw on the locking washer with any groove on the round nut, and then bend the claw on the locking washer by 90°. Make the claw engage with the groove on the round nut to play a role in anti-loosening. However, because the space inside the gear is narrow, it is slightly difficult to bend the claw on the locking washer by 90°. Therefore, we have developed a pry head with adjustable force application points. Content of the Utility Model

[0003] The purpose of the utility model is to provide a pry head with adjustable force application points to solve the problem that it is not convenient to bend the claw of the locking washer when the space is narrow as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A pry head with adjustable force application points, including a tip. The tip is connected to one end of the head, and one end of the tip is located inside the head. And the tip and the head are fixed by a fixing screw. One end of the head is connected to the inside of the support part, and a handle is connected to one end of the head. A support mechanism is arranged on the outer surface of the support part, and the support mechanism is arranged as a structure with two adjustable support points.

[0005] Preferably, one end of the tip is located inside the head, and the tip and the head are fixed by a fixing screw. The tip is narrowed by arc surface cutting, and the bottom end surface is an arc surface. The arc surface is convenient for pressing the claw of the locking washer to make it curl, so as to realize clamping the claw into the groove of the nut.

[0006] Adopting the above technical solution, the head is preferably a cylinder. The tip needs to ensure the thickness because the force is large, to prevent it from deforming and breaking during use.

[0007] Preferably, the support mechanism includes: 2 adjusting screws symmetrically distributed. The adjusting screws are installed through the outer surface of the support part, and the support part is in threaded connection with the adjusting screws. And the adjusting screws are arranged on both sides of the support part.

[0008] Adopting the above technical solution, the adjusting screw can be rotated to adjust the height of the support part.

[0009] Preferably, the handle is fixedly installed at one end of the head close to the support part, and an extension mechanism is slidably installed at one end of the handle outside the support part to extend the force arm through the extension mechanism.

[0010] With the above technical solution, the extension mechanism can be conveniently stored.

[0011] Preferably, the extension mechanism includes a grip. At one end of the grip away from the body part, two handlebars are provided. The grip is slidably connected to the handle part, and the handle part is rotatably connected to the grip. An insertion slot is formed at one end of the grip away from the body part, and the insertion slot is located between the two handlebars of the grip.

[0012] With the above technical solution, the grip can be pulled out to extend the length of the grip and the handle part, increasing the lever arm of the pry head and saving the user's effort.

[0013] Preferably, an external tooth is fixedly installed on the outer surface of one end of the head away from the body part. A groove is formed at one end of the body part away from the grip, and the groove on the side surface of the body part is engaged with the external tooth.

[0014] With the above technical solution, the angle of the tip can be adjusted.

[0015] Preferably, a clamping mechanism is slidably installed at one end of the handle part away from the body part to fix the grip through the clamping mechanism.

[0016] With the above technical solution, the grip can be fixed to prevent the grip from moving randomly during use.

[0017] Preferably, the clamping mechanism includes a slider. The slider is slidably installed at one end of the handle part away from the body part. A pressing head is installed through one end of the handle part close to the slider, and the pressing head is slidably connected to the handle part. One end of the pressing head is connected to the slider, and a spring is provided between the pressing head and the handle part. A rolling clamping body is rotatably installed inside the handle part. One end of the rolling clamping body exposes the side surface of the handle part, and the outer surface of the rolling clamping body is attached to the outer surface of the slider. Chute grooves are formed on both sides of the slider. Annular groove-shaped clamping slots are evenly formed inside the grip, and the clamping slots are in clamping connection with the rolling clamping body.

[0018] With the above technical solution, the slider can be moved by pushing the pressing head with a tool, causing the rolling clamping body to be pushed back by the grip, allowing the grip to move freely and be fixed at a set position on the handle part.

[0019] Compared with the prior art, the beneficial effect of the present utility model is: This force application point adjustable pry head:

[0020] 1. The worker installs the shaft assembly onto the shaft, then places the stop washer and screws in the round nut. The round nut is tightened so that the claws of the stop washer are aligned with the grooves of the round nut. Then, the head of the pry bar is inserted into the gearbox, and the tip is made to fit against the stop washer. Next, the adjusting screw is adjusted to lift the support part, causing the pry bar to pivot around the adjusting screw and bend the claws of the stop washer by 90°, facilitating the bending of the stop washer by the worker during assembly.

[0021] 2. When it is necessary to extend the lever arm, simply insert a screwdriver into the grip. Through the insertion slot, the screwdriver presses against the pressing head to drive the slider downward. Then, push the grip to retract the rolling engagement body into the handle, allowing the grip to be moved freely. After that, release the pressing head and pull the grip to extend the lever arm.

[0022] 3. When the pressing head is released, the spring will push the pressing head, causing the slider to move along. However, the rolling engagement body fits against the side surface of the grip, preventing the slider from resetting further. When the grip is pulled, the card slot inside the grip engages with the rolling engagement body. At this time, the rolling engagement body will be pushed into the card slot by the slider, and at the same time, the slider returns to its original position, preventing the rolling engagement body from moving again and fixing the grip to the handle.

[0023] 4. When it is necessary to bend stop washers of different sizes, simply push the handle forward so that one end of the external teeth disengages from the support part. Then, rotate the handle and pull back the head to engage the external teeth with the support part, changing the angle of the tip to adapt to stop washers of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the three - dimensional connection structure of Embodiment 1 of the present utility model;

[0025] Figure 2 Schematic diagram of the front cross - sectional structure of Embodiment 3 of the present utility model;

[0026] Figure 3 Schematic diagram of the side view structure of Embodiment 2 of the present utility model;

[0027] Figure 4 Schematic diagram of the side cross - sectional structure of Embodiment 5 of the present utility model;

[0028] Figure 5 Of the present utility model Figure 2 Enlarged structure schematic diagram at A in;

[0029] Figure 6 Of the present utility model Figure 4 Sectional structure schematic diagram at B in;

[0030] Figure 7 Schematic diagram of the usage scenario structure of the embodiment of the present utility model;

[0031] Figure 8 This is the front view structural schematic diagram of Embodiment 3 of the present utility model.

[0032] In the figure: 1, tip; 2, head; 3, support body part; 4, adjusting screw; 5, handle part; 6, grip; 7, external teeth; 8, slider; 9, spring; 10, pressing head; 11, rolling engaging body; 12, card slot; 13, fixing screw; 14, sliding groove; 15, insertion slot. Specific embodiments

[0033] 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 work shall fall within the protection scope of the present utility model.

[0034] Please refer to Figure 1-8 , the present utility model provides a technical solution: a pry head with adjustable force application point.

[0035] Embodiment 1

[0036] In this embodiment, it is disclosed that one end of the tip 1 is located inside the head 2, and the tip 1 and the head 2 are fixed by the fixing screw 13. The tip 1 is tapered by arc surface cutting, and the bottom end surface is an arc surface. The arc surface is convenient for pressing the claw piece of the retaining washer to curl, so as to realize clamping the claw piece into the groove of the nut.

[0037] By adding the above structure, after the output shaft assembly is locked by the round nut and the retaining washer, when any claw piece on the retaining washer is aligned with any groove on the round nut, the tip 1 is inserted into the gearbox to pry the claw piece of the retaining washer, preventing the tip 1 from being deformed and broken due to force during the prying process.

[0038] Embodiment 2

[0039] This embodiment also discloses that the tip 1 is connected to one end of the head 2, and one end of the tip 1 is located inside the head 2, and the tip 1 and the head 2 are fixed by the fixing screw 13. One end of the head 2 is connected inside the support body part 3, and a handle part 5 is connected to one end of the head 2. A support mechanism is provided on the outer surface of the support body part 3, so that there is a support point when using the tool. The support mechanism includes: 2 adjusting screws 4 symmetrically distributed, the adjusting screws 4 are installed through the outer surface of the support body part 3, and the support body part 3 and the adjusting screws 4 are in threaded connection, and the adjusting screws 4 are arranged on both sides of the support body part 3.

[0040] When using the device, after the output shaft assembly of the gearbox is locked by a round nut and a stop washer, the worker inserts the head 2 into the interior of the gearbox, and at the same time inserts the tip 1 under the claw of the stop washer. Then, the height of the adjusting screw 4 is adjusted to separate the lower surface of the support part 3 from the inner surface of the gearbox. After that, the handle part 5 is pressed, and the pry head can use the adjusting screw 4 as a support point to lift and bend the claw of the stop washer by 90°, which can easily lift the claw of the stop washer in a narrow area and snap it into the groove of the nut to achieve stopping.

[0041] Embodiment 3

[0042] This embodiment discloses on the basis of Embodiment 2: The handle part 5 is fixedly installed at one end of the head 2 close to the support part 3, and an extension mechanism is slidably installed at one end of the handle part 5 located outside the support part 3. The force arm is extended through the extension mechanism. The extension mechanism includes a grip 6. Two grips are provided at one end of the grip 6 away from the support part 3. The grip 6 is slidably connected to the handle part 5, and the handle part 5 is rotatably connected to the grip 6. An insertion slot 15 is opened at one end of the grip 6 away from the support part 3, and the insertion slot 15 is located between the two grips of the grip 6.

[0043] By adding the above structure, a screwdriver can be inserted into the insertion slot 15 to make the screwdriver press the pressing head 10. The movement of the pressing head 10 drives the slider 8, and at the same time pulls the grip 6, so that the rolling engaging body 11 is pushed back into the handle part 5, and then the grip 6 can be pulled to move the grip 6 on the handle part 5, increasing the distance between the handle part 5 and the grip 6 to save the force required for the worker during use.

[0044] Embodiment 4

[0045] This embodiment discloses on the basis of Embodiments 2 and 3: A clamping mechanism is slidably installed at one end of the handle part 5 away from the support part 3 to fix the grip 6 through the clamping mechanism. The clamping mechanism includes a slider 8. The slider 8 is slidably installed at one end of the handle part 5 away from the support part 3. A pressing head 10 is installed through one end of the handle part 5 close to the slider 8, and the pressing head 10 is slidably connected to the handle part 5. One end of the pressing head 10 is connected to the slider 8, and a spring 9 is provided between the pressing head 10 and the handle part 5. A rolling engaging body 11 is rotatably installed inside the handle part 5. One end of the rolling engaging body 11 exposes the side surface of the handle part 5, and the outer surface of the rolling engaging body 11 is fitted with the outer surface of the slider 8. Chute grooves 14 are opened on both sides of the slider 8. Annular grooves 12 are evenly opened inside the grip 6, and the annular grooves 12 are designed as annular grooves, and the annular grooves 12 are engaged with the rolling engaging body 11.

[0046] By adding the above structure, when the pressing head 10 is released, the spring 9 will push the pressing head 10 back and drive the slider 8 to move upward at the same time. However, at this time, the rolling engaging body 11 is located inside the chute 14, and the outer surface of the rolling engaging body 11 is in contact with the inner surface of the grip 6, preventing the slider 8 from continuing to move upward. When the grip 6 is pulled and the rolling engaging body 11 slides to the position of the card slot 12, the rolling engaging body 11 enters the card slot 12 through the extrusion of the slider 8, fixing the grip 6 at the upper end of the handle 5 to prevent the grip 6 from sliding on the handle 5 during use.

[0047] Embodiment 5

[0048] This embodiment discloses on the basis of Embodiment 2: An external tooth 7 is fixedly installed on the outer surface of one end of the head 2 away from the body part 3, and a groove is formed at one end of the body part 3 away from the grip 6, and the groove on the side surface of the body part 3 is engaged with the external tooth 7.

[0049] By adding the above structure, only need to push the handle 5 forward to disengage the external tooth 7 from the body part 3, then rotate the handle 5 to make the side of the tip 1 face upward, and at the same time pull the handle 5 back to engage the external tooth 7 with the body part 3, so as to facilitate changing the angle of the tip 1. At the same time, the fixing screw 13 can also be removed from the head 2 to facilitate replacing the worn tip 1 and more specifications of the tip 1 to adapt to different widths of the stop washers and facilitate replacing the worn tip 1.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A force application point adjustable pry head, comprising a tip (1), the tip (1) being connected to one end of a head (2), one end of the head (2) being connected inside a support part (3), and a handle part (5) being connected to one end of the head (2), characterized in that: A support mechanism is provided on the outer surface of the support part (3), and the support mechanism is configured as a structure with adjustable height having two support points.

2. The adjustable force application point pry head according to claim 1, wherein: One end of the pointed part (1) is located inside the head part (2), and the pointed part (1) and the head part (2) are fixed by a fixing screw (13). The pointed part (1) is tapered by arc surface cutting, and the bottom end surface is an arc surface.

3. The adjustable force application point pry head according to claim 1, characterized in that: The support mechanism includes: 2 adjusting screws (4) symmetrically distributed. The adjusting screws (4) are installed through the outer surface of the support part (3), and the support part (3) is threadedly connected to the adjusting screws (4), and the adjusting screws (4) are arranged on both sides of the support part (3).

4. The adjustable force application point pry head according to claim 1, wherein: The handle part (5) is fixedly installed at one end of the head part (2) close to the support part (3), and an extension mechanism is slidably installed at one end of the handle part (5) outside the support part (3) to extend the force arm through the extension mechanism.

5. The adjustable acting point pry head according to claim 4, characterized in that: The extension mechanism includes a grip (6). Two grips are provided at one end of the grip (6) away from the support part (3). The grip (6) is slidably connected to the handle part (5), and the handle part (5) is rotatably connected to the grip (6). An insertion slot (15) is provided at one end of the grip (6) away from the support part (3), and the insertion slot (15) is located between the two grips of the grip (6).

6. The adjustable force application point pry head according to claim 1, characterized in that: External teeth (7) are fixedly installed on the outer surface of one end of the head part (2) away from the support part (3). A groove is provided at one end of the support part (3) away from the grip (6), and the groove on the side surface of the support part (3) is engaged with the external teeth (7).

7. The adjustable force application point pry head according to claim 1, characterized in that: A clamping mechanism is slidably installed at one end of the handle part (5) away from the support part (3) to fix the grip (6) through the clamping mechanism.

8. The adjustable force application point pry head according to claim 7, characterized in that: The clamping mechanism includes a slider (8). The slider (8) is slidably installed at one end of the handle part (5) away from the support part (3). A pressing head (10) is installed through one end of the handle part (5) close to the slider (8), and the pressing head (10) is slidably connected to the handle part (5). One end of the pressing head (10) is connected to the slider (8), and a spring (9) is provided between the pressing head (10) and the handle part (5). A rolling clamping body (11) is rotatably installed inside the handle part (5). One end of the rolling clamping body (11) exposes the side surface of the handle part (5), and the outer surface of the rolling clamping body (11) is attached to the outer surface of the slider (8). Chute grooves (14) are provided on both sides of the slider (8). Annular groove-shaped clamping slots (12) are evenly provided inside the grip (6), and the clamping slots (12) are engaged with the rolling clamping body (11).

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