Internal and external integrated circlip pliers

Abstract

The invention discloses an easy-to-use inner and outer integrated circlip pliers, comprising a left and a right caliper body, a left and a right caliper head, a core shaft, and a clamp; the U-shaped bracket is buckled on the left and right caliper bodies and the left and right caliper heads, and one end of the core shaft is sleeved with a conical spring and connected to one wing of the U-shaped bracket, and the other end of the core shaft is provided with a reversing switch, the left and right caliper bodies are respectively provided with two pin holes, and a locking pin is movably penetrated through the pin holes; the left and right caliper heads are respectively provided with locking holes that match the locking pin; a reset spring is sleeved on the locking pin; a button pin is inserted into the end through holes on both ends of the U-shaped bracket, and a limit button and a limit spring are movably sleeved on the button pin, and the limit button is provided with a limit part; the left and right caliper handles are relatively provided with V-shaped positioning grooves that match the limit part, and when the limit grooves on the left and right caliper handles clamp the limit part of the limit button, the four locking pins match the positions of the locking holes on the left and right caliper heads.

Description

Technical Field

[0001] The invention relates to a circlip pliers, in particular to an internal and external integrated circlip pliers. Background Art

[0002] Existing circlip pliers are used for either disassembling or assembling external circlips or internal circlips, and the circlip pliers need to be frequently replaced during use, which is not only cumbersome to operate, but also very inconvenient to carry and store circlip pliers of different specifications. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an easy-to-use internal and external integrated circlip pliers.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an internal and external integrated circlip pliers, comprising a left caliper body and a right caliper body hinged together by a first hollow shaft, a left caliper head and a right caliper head hinged together by a second hollow shaft, a core shaft passing through the first hollow shaft and the second hollow shaft, the left caliper head and the right caliper head are respectively provided with a clamp that cooperates with the driving hole on the circlip; a U-shaped bracket is buckled on the left caliper body and the right caliper body and the left caliper head and the right caliper head, one end of the core shaft is sleeved with a conical spring and connected to one wing of the U-shaped bracket, and the other end of the core shaft is passed through The other wing of the U-shaped bracket is provided with a reversing switch, and two pin holes are respectively provided on both sides of the hollow shaft on the left and right clamp bodies. The distance between each pin hole on the left and right clamp bodies and the axis of the hollow shaft is equal, and a locking pin is movably passed through the pin hole; the left and right clamp heads are respectively provided with locking holes that match the locking pin; a limiting top plate is provided on the top of the locking pin, and a reset spring is sleeved on the part of the locking pin between the limiting top plate and the left or right clamp body; end through holes for installing button pins are respectively provided at both ends of the U-shaped bracket, and the button The pin is passed through the end through hole on the U-shaped bracket. The movable sleeve on the part of the button pin located on the inner side of the U-shaped bracket is provided with a limit button and a limit spring that pushes the limit button toward the left and right clamp heads. The limit button is provided with a limit portion with a circular cross-section; the left and right clamp handles are relatively provided with V-shaped positioning grooves that match the limit portion of the limit button. When the limit grooves on the left and right clamp handles clamp the limit portion of the limit button, the four locking pins match the positions of the locking holes on the left and right clamp heads; the left and right clamp heads are located between the left and right clamp heads. A torsion spring is provided to close the two ends away from the left clamp handle, and two arc-shaped adjusting wedges are provided on the inner surface of the reversing switch. A downward positioning block for pressing the two locking pins into the left clamp head and the right clamp head and an accommodating area for allowing the other two locking pins to pop out from the left clamp head and the right clamp head are provided between the two adjusting wedges on the reversing switch. The button pin passes through the U-shaped bracket and one end is connected to the locking nut, and the other end is provided with a limit clamp ring; the left and right clamp bodies and the left and right clamp heads are respectively provided with avoidance holes for avoiding the U-shaped bracket.

[0005] The beneficial effects of the present invention are:

[0006] The circlip pliers are used to disassemble and install external circlips when the locking pin is inserted into the locking hole of the left and right pliers heads away from the left pliers body; and to disassemble and install internal circlips when the locking pin is inserted into the locking hole of the left and right pliers heads close to the left pliers body. The circlip pliers are easy and quick to use.

[0007] Since the button pin is located on the inner side of the U-shaped bracket, a movable sleeve is provided with a limit button and a limit spring that pushes the limit button toward the left and right clamp heads, and a limit portion with a circular cross-section is provided on the limit button; the left and right clamp handles are relatively provided with V-shaped positioning grooves that cooperate with the limit portion of the limit button. When the limit grooves on the left and right clamp handles clamp the limit portion of the limit button, the four locking pins cooperate with the positions of the locking holes on the left and right clamp heads; this makes it simple and quick to switch between internal and external circlips using this circlip pliers.

[0008] Since the left and right pliers bodies as well as the left and right pliers heads are respectively provided with avoidance holes for avoiding the U-shaped bracket, the overall structure is more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0010] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0011] Figures 1 to 2 Center: 1. First hollow shaft, 2. Left clamp body, 3. Right clamp body, 4. Second hollow shaft, 5. Left clamp head, 6. Right clamp head, 7. Mandrel, 8. Clamp; 9. U-shaped bracket, 10. Reversing switch, 11. Locking pin; 12. Return spring; 13. Push button pin, 14. Locking nut, 15. Limiting clasp, 16. Limiting button, 17. Limiting spring, 18. Torsion spring, 19. Positioning groove, 20. Conical spring. DETAILED DESCRIPTION

[0012] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0013] like Figure 1-2 As shown, an internal and external integrated circlip pliers includes a left caliper body 2 and a right caliper body 3 hinged together by a first hollow shaft 1, a left caliper head 5 and a right caliper head 6 hinged together by a second hollow shaft 4, a core shaft 7 passing through the first hollow shaft 1 and the second hollow shaft 4, and the left caliper head 5 and the right caliper head 6 are respectively provided with a chuck 8 that cooperates with the drive hole on the circlip;

[0014] The U-shaped bracket 9 is buckled onto the left and right caliper bodies 2 and 3, as well as the left and right caliper heads 5 and 6. Each of the left and right caliper bodies 2 and 3, as well as the left and right caliper heads 5 and 6, is provided with a clearance hole for circumventing the U-shaped bracket 9. One end of the core shaft 7 is sleeved with a conical spring 20 and connected to one wing of the U-shaped bracket 9. The other end of the core shaft 7 passes through the other wing of the U-shaped bracket 9 and is provided with a reversing switch 10. The left and right caliper bodies 2 and 3 are respectively provided with two pin holes on either side of the hollow shaft. The distances between each pin hole on the left and right caliper bodies 2 and 3 and the axis of the hollow shaft are equal, and a locking pin 11 is movably inserted into the pin hole. The left and right caliper heads 5 and 6 are respectively provided with a locking hole that matches the locking pin 11. A limit plate is provided on the top of the locking pin 11, and a return spring 12 is sleeved on the portion of the locking pin 11 between the limit plate and the left or right caliper body 2 or 3.

[0015] The U-shaped bracket 9 has through holes at both ends for mounting a button pin 13. The button pin 13 is inserted into the through holes on the U-shaped bracket 9. The button pin 13 passes through the U-shaped bracket 9 and is connected to a locking nut 14 at one end. The other end is provided with a limit ring 15. The button pin 13 located on the inner side of the U-shaped bracket 9 is movably sleeved with a limit button 16 and a limit spring 17 that pushes the limit button 16 toward the left and right pliers heads 5 and 6. The limit button 16 has a limit portion with a circular cross-section. The left and right pliers handles are provided with V-shaped positioning grooves 19 that match the limit portion of the limit button 16. When the limit grooves on the left and right pliers handles clamp the limit portion of the limit button 16, the four locking pins 11 match the locking holes on the left and right pliers heads 5 and 6. A torsion spring 18 is provided between the left and right pliers heads 5 and 6 to close the ends away from the left pliers handle.

[0016] Two arc-shaped adjusting wedges are provided on the inner surface of the reversing switch 10, and a downward positioning block for pressing the two locking pins 11 into the left clamp head 5 and the right clamp head 6 and an accommodating area for allowing the other two locking pins 11 to pop out from the left clamp head 5 and the right clamp head 6 are provided between the two adjusting wedges on the reversing switch 10.

[0017] When in use, toggle the limit button 16 so that the limit grooves on the left and right clamp handles clamp the limit part of the limit button 16, then rotate the reversing switch 10 180°, and then release the limit button 16, thus completing the switching operation of the circlip pliers between the applicable internal circlip and the applicable external circlip.

[0018] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An internal and external integrated circlip pliers, characterized by: The invention relates to a clamping mechanism comprising a left clamp body and a right clamp body hinged together by a first hollow shaft, a left clamp head and a right clamp head hinged together by a second hollow shaft, a core shaft passing through the first hollow shaft and the second hollow shaft, the left clamp head and the right clamp head are respectively provided with a clamp head which cooperates with the driving hole on the retaining spring; a U-shaped bracket is buckled on the left clamp body and the right clamp body and the left clamp head and the right clamp head, one end of the core shaft is sleeved with a conical spring and connected to one wing of the U-shaped bracket, the other end of the core shaft passes through the other wing of the U-shaped bracket and is provided with a reversing switch, the left clamp body and the right clamp head are respectively provided with a clamp head which cooperates with the driving hole on the retaining spring; Two pin holes are provided on both sides of the hollow shaft on the caliper body. The distances between the pin holes on the left caliper body and the right caliper body and the axis of the hollow shaft are equal, and a locking pin is movably passed through the pin holes; the left caliper head and the right caliper head are respectively provided with locking holes that match the locking pin; a limiting top plate is provided on the top of the locking pin, and a reset spring is sleeved on the part of the locking pin between the limiting top plate and the left caliper body or the right caliper body; end through holes for installing button pins are respectively provided at both ends of the U-shaped bracket, and the button pin is passed through the end through hole on the U-shaped bracket. The button pin is located on the inner side of the U-shaped bracket. The movable sleeve is provided with a limit button and a limit spring that pushes the limit button toward the left and right clamp heads. The limit button is provided with a limit portion with a circular cross-section; the left and right clamp handles are relatively provided with V-shaped positioning grooves that match the limit portion of the limit button. When the limit grooves on the left and right clamp handles clamp the limit portion of the limit button, the four locking pins match the positions of the locking holes on the left and right clamp heads; there is a space between the left and right clamp heads to keep the two away from the left and right clamp heads. A torsion spring is closed at one end of the pliers handle, and two arc-shaped adjusting wedges are provided on the inner surface of the reversing switch. A downward positioning block for pressing the two locking pins into the left pliers head and the right pliers head and an accommodating area for allowing the other two locking pins to pop out from the left pliers head and the right pliers head are provided between the two adjusting wedges on the reversing switch; the button pin passes through the U-shaped bracket and one end is connected to the locking nut, and the other end is provided with a limit clamp; the left pliers body and the right pliers body and the left pliers head and the right pliers head are respectively provided with avoidance holes for avoiding the U-shaped bracket.

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