Valve collet mounting tool

Abstract

The utility model relates to the technical field of tool clamps, in particular to a valve collet installation tool. The valve collet mounting tool comprises a pressing rod, a pressing assembly and a supporting assembly, the pressing assembly is arranged on the pressing rod, and the end, away from the pressing rod, of the pressing assembly is used for abutting against an upper seat of a valve spring; the supporting assembly comprises a supporting rod and a supporting block, the supporting rod is rotationally connected to one end of the pressing rod, the supporting block is provided with a first surface and a second surface, the first surface faces the pressing rod, the supporting rod is connected with the first surface, and a positioning cavity is formed in one side of the second surface of the supporting block and used for being matched with a cam shaft. The included angle between the first surface and the second surface is a first preset value, so that when the supporting block is matched with the cam shaft, the side, facing the valve spring, of the pressing assembly is parallel to the top face of the upper base. According to the valve collet mounting tool, a valve rod cannot be scratched when a valve spring is pressed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field especially a valve lock clamp installation tool. BACKGROUND

[0002] The intake valve and exhaust valve of cylinder cover need to be installed with valve lock clamp to fix the position between valve rod and valve spring upper seat. When installing valve lock clamp, valve spring needs to be compressed. In the prior art, when the plane of valve spring upper seat is not parallel to the plane on cylinder cover, because there is an angle between the plane of valve spring upper seat and the plane on cylinder cover, in the process of compressing valve spring by using valve lock clamp installation tool, valve lock clamp installation tool will scratch valve rod, which affects the operation of engine. SUMMARY

[0003] Therefore, the utility model discloses a valve lock clamp installation tool, which can prevent valve rod from being scratched when compressing valve spring and ensure stable operation of engine.

[0004] In a first aspect, the utility model discloses a valve lock clamp installation tool which comprises a pressing rod, a compression assembly and a supporting assembly. The compression assembly is arranged on the pressing rod, and one end of the compression assembly away from the pressing rod is used for abutting against the upper seat of the valve spring. The supporting assembly comprises a supporting rod and a supporting block. One end of the supporting rod is rotatably connected to the pressing rod. The supporting block has a first surface and a second surface. The first surface faces the pressing rod, and the supporting rod is connected to the first surface. One side of the second surface of the supporting block is provided with a positioning cavity, which is used for cooperating with a camshaft. The angle between the first surface and the second surface is a first preset value. When the supporting block cooperates with the camshaft, the side of the compression assembly facing the valve spring is parallel to the top surface of the upper seat.

[0005] When the valve spring is compressed by the valve lock clamp installation tool, the positioning cavity cooperates with the camshaft, and the supporting block is fixed on the camshaft bearing cover through the locking piece. Because there is an angle between the second surface and the first surface of the supporting block, and the value of the angle is the first preset value, when the supporting block is fixed on the camshaft bearing cover, the first surface is parallel to the top surface of the upper seat of the valve spring, so that the side of the compression assembly facing the upper seat of the valve spring is parallel to the top surface of the upper seat of the valve spring. When the compression assembly compresses the valve spring, the valve rod vertically passes through the compression assembly, and the compression assembly does not interfere with the valve rod on the valve spring, thereby preventing the valve rod from being scratched.

[0006] In one embodiment, the first preset value is any value between 14° and 16°.

[0007] In one embodiment, the support block is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole penetrating through the support block, and the first mounting hole and the second mounting hole being arranged on two sides of the positioning cavity.

[0008] In one embodiment, the support block is further provided with a third mounting hole, the third mounting hole being used for connecting with the support rod, and the third mounting hole being perpendicular to the first surface.

[0009] In one embodiment, one side of the first surface of the support block is provided with a first notch, and the first notch is connected with the side wall of the positioning cavity.

[0010] In one embodiment, one side of the first surface of the support block is further provided with a second notch, and the second notch is connected with the side wall of the positioning cavity.

[0011] In one embodiment, the support assembly further comprises a connecting block and a rotating connecting piece, one end of the connecting block is fixedly connected with the support rod, the other end of the connecting block is provided with a receiving groove, one end of the pressing rod is located in the receiving groove, and the rotating connecting piece penetrates through the side wall of the receiving groove and one end of the pressing rod.

[0012] In one embodiment, the pressing assembly comprises a pressing plate, the pressing plate is provided with a through hole, the axis of the through hole is perpendicular to the side of the pressing plate facing the upper seat of the valve spring, and the through hole is used for penetrating the valve rod.

[0013] In one embodiment, the pressing assembly further comprises a connecting frame and a pressing rod, one end of the connecting frame is fixedly connected with the pressing plate, the other end of the connecting frame is connected with one end of the pressing rod, and the other end of the pressing rod is used for rotatably connecting with the pressing rod.

[0014] In one embodiment, the pressing assembly further comprises an adapter sleeve, the adapter sleeve is sleeved on the pressing rod, the adapter sleeve is detachably connected with the pressing rod, and the pressing rod can rotate relative to the adapter sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic view of an application scene of the valve lock clip installation tool provided by the embodiment of the utility model;

[0016] Figure 2 A sectional view of the application scene of the valve lock clip installation tool provided by the embodiment of the utility model;

[0017] Figure 3 Another sectional view of the application scene of the valve lock clip installation tool provided by the embodiment of the utility model;

[0018] Figure 4 A structure schematic view of the valve lock clamp installation tool provided by the embodiment of the present application is shown in FIG. 1.

[0019] Figure 5 A structure schematic view of the support block in the valve lock clamp installation tool provided by the embodiment of the present application is shown in FIG. 2.

[0020] Figure 6 Another structure schematic view of the support block in the valve lock clamp installation tool provided by the embodiment of the present application is shown in FIG. 3.

[0021] Icon: 10-pressing rod; 20-pressing assembly; 21-pressing plate; 210-through hole; 22-connection frame; 23-pressing rod; 24-adaptor sleeve; 30-supporting assembly; 31-supporting rod; 32-supporting block; 320-first surface; 321-positioning cavity; 322-first mounting hole; 323-second mounting hole; 324-third mounting hole; 325-first notch; 326-second notch; 33-connection block; 330-receiving groove; 34-rotary connecting piece; 40-valve spring; 41-upper seat; 50-camshaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] The valve lock clamp installation tool provided by the embodiment of the present application will be specifically described below with reference to the drawings.

[0024] Figure 1 A structure schematic view of the application scenario of the valve lock clamp installation tool provided by the embodiment of the present application is shown in FIG. 4. Figure 2 And Figure 3 A sectional view of the application scenario of the valve lock clamp installation tool provided by the embodiment of the present application is shown in FIG. 5. Figure 4 A structure schematic view of the valve lock clamp installation tool provided by the embodiment of the present application is shown in FIG. 1. Figure 1 , Figure 2 , Figure 3 And Figure 4 , Figure 4The middle X direction is the axial direction of the pressing rod, and the Y direction is the radial direction of the pressing rod. The valve lock clamp installation tool provided by the embodiment of the application comprises a pressing rod 10, a pressing assembly 20, and a supporting assembly 30. The pressing assembly 20 and the supporting assembly 30 are both connected to the pressing rod 10. An end of the pressing assembly 20 away from the pressing rod 10 is used to abut against an upper seat 41 of a valve spring 40. The supporting assembly 30 comprises a supporting rod 31 and a supporting block 32. An end of the supporting rod 31 is rotationally connected to the pressing rod 10, and the supporting rod 31 rotates around the radial direction of the pressing rod 10. The supporting block 32 has a first surface 320 and a second surface. The first surface 320 faces the pressing rod 10. An end of the supporting rod 31 away from the pressing rod 10 is connected to the first surface 320. A positioning cavity 321 is arranged on one side of the second surface of the supporting rod 31. The positioning cavity 321 is used to cooperate with a camshaft 50, so that the supporting block 32 is fixed with a bearing cover of the camshaft 50. An included angle between the first surface 320 and the second surface is a first preset value. When the supporting block 32 cooperates with the camshaft 50, one side of the pressing assembly 20 facing the valve spring 40 can be parallel to the top surface of the upper seat 41 of the valve spring 40.

[0025] Specifically, when the valve spring 40 needs to be pressed, the positioning cavity 321 cooperates with the camshaft 50, and the supporting block 32 is fixed on the bearing cover of the camshaft 50 through a locking piece. Since there is an included angle between the second surface of the supporting block 32 and the first surface 320, and the value of the included angle is the first preset value, when the supporting block 32 is fixed on the bearing cover of the camshaft 50, the first surface 320 is parallel to the top surface of the upper seat 41 of the valve spring 40, which can make one side of the pressing assembly 20 facing the upper seat 41 of the valve spring 40 parallel to the top surface of the upper seat 41 of the valve spring 40, so that the valve rod vertically passes through the pressing assembly 20 when the pressing assembly 20 presses the valve spring 40, and the pressing assembly 20 does not interfere with the valve rod on the valve spring 40, thereby preventing the valve rod from being scratched.

[0026] The cross section of the positioning cavity 321 is semicircular, and the radius of the semicircular positioning cavity 321 is greater than the outer diameter of the camshaft 50.

[0027] In the above embodiment, the first preset value can be any value between 14° and 16°. Specifically, the first preset value can be 14°, 15°, or 16°. The included angle between the top surface of the upper seat 41 of the valve spring 40 and the upper surface of the cylinder head is also 14°, 15°, or 16°. In this way, the first preset value can compensate for the included angle between the top surface of the upper seat 41 of the valve spring 40 and the upper surface of the cylinder head, so that one side of the pressing assembly 20 facing the upper seat 41 of the valve spring 40 is parallel to the top surface of the upper seat 41 of the valve spring 40.

[0028] The support block 32 is provided with a first mounting hole 322 and a second mounting hole 323, the first mounting hole 322 and the second mounting hole 323 penetrate the support block 32, and the first mounting hole 322 and the second mounting hole 323 are located on both sides of the positioning cavity 321. The first mounting hole 322 and the second mounting hole 323 correspond to the mounting holes on the camshaft 50 bearing cover, so that a new mounting hole does not need to be separately arranged, and the strength of the engine can be ensured. When the valve spring 40 is compressed, one bolt passes through the first mounting hole 322 and cooperates with the mounting hole on one camshaft 50 bearing cover, and the other bolt passes through the second mounting hole 323 and cooperates with the mounting hole on the other camshaft 50 bearing cover, so as to fix the support block 32 on the camshaft 50 bearing cover.

[0029] Figure 5 A structural schematic view of a support block in a valve lock clip installation tool provided by an embodiment of the application; Figure 6 Another structural schematic view of a support block in a valve lock clip installation tool provided by an embodiment of the application. Refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The support block 32 is further provided with a third mounting hole 324, the extension direction of the third mounting hole 324 is perpendicular to the first surface 320, and the third mounting hole 324 is used for connecting with the support rod 31. The extension direction of the third mounting hole 324 is perpendicular to the first surface 320, so that after the compression assembly 20 is rotated, the side of the compression assembly 20 facing the valve spring 40 can be parallel to the top surface of the upper seat 41 of the valve spring 40.

[0030] The first mounting hole 322, the second mounting hole 323 and the third mounting hole 324 can all be threaded holes, and the third mounting hole 324 is located between the first mounting hole 322 and the second mounting hole 323.

[0031] In the above embodiment, one side of the first surface 320 of the support block 32 is provided with a first notch 325 and a second notch 326, the first notch 325 and the second notch 326 are connected with the side wall of the positioning cavity 321, and the first notch 325 and the second notch 326 are located on both sides of the positioning cavity 321. The first notch 325 and the second notch 326 are used for avoiding the positioning pin.

[0032] In the above embodiment, the support assembly 30 can further include a connecting block 33 and a rotary connecting piece 34, one end of the connecting block 33 is fixedly connected with the side of the support rod 31 away from the support block 32, the other end of the connecting block 33 has an accommodating groove 330, one end of the compression rod 10 is located in the accommodating groove 330, and the rotary connecting piece 34 can pass through the two side walls of the accommodating cavity and one end of the compression rod 10. It can be understood that one end of the compression rod 10 is provided with an opening, and the rotary connecting piece 34 passes through the two side walls and the opening, so that the compression rod 10 and the connecting block 33 are rotatably connected.

[0033] The pressing assembly 20 comprises a pressing plate 21, a connecting frame 22, a pressing rod 23 and an adapter sleeve 24, the adapter sleeve 24 is detachably connected with the pressing rod 23, one side of the pressing rod 23 away from the adapter sleeve 24 is connected with one end of the connecting frame 22, and the other end of the connecting frame 22 is fixedly connected with the pressing plate 21. Wherein, the connecting frame 22 is in U shape, the adapter sleeve 24 is sleeved on the pressing rod 10, and the pressing rod 23 can rotate relative to the adapter sleeve 24, specifically, the pressing rod 23 rotates relative to the adapter sleeve 24 around Y direction. The pressing plate 21 has a through hole 210, the axis of the through hole 210 is perpendicular to the side of the pressing plate 21 facing the upper seat 41 of the valve spring 40, and the through hole 210 is used for penetrating the valve rod. When the pressing plate 21 abuts against the valve upper seat 41, the valve rod penetrates through the through hole 210, and since the side of the pressing plate 21 facing the upper seat 41 of the valve spring 40 is parallel to the surface of the upper seat 41 of the valve spring 40, the part of the valve rod penetrating through the through hole 210 will not contact with the connecting frame 22, so that the valve rod can be prevented from being damaged.

[0034] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.

Claims

1. A valve keeper installation tool characterized by, The utility model relates to a valve spring compressor, comprising: a pressing rod; a pressing assembly arranged on the pressing rod, the pressing assembly being arranged at one end of the pressing rod away from the pressing rod and used for abutting against an upper seat of a valve spring; a supporting assembly comprising a supporting rod and a supporting block, the supporting rod being rotatably connected to one end of the pressing rod, the supporting block having a first surface and a second surface, the first surface being directed towards the pressing rod, the supporting rod being connected to the first surface, one side of the second surface of the supporting block being provided with a positioning cavity used for cooperating with a camshaft, wherein: an included angle between the first surface and the second surface is a first preset value, so that when the supporting block cooperates with the camshaft, one side of the pressing assembly directed towards the valve spring is parallel to a top surface of the upper seat.

2. The valve keeper installation tool of claim 1, wherein, The first preset value is any value between 14° and 16°.

3. The valve keeper installation tool of claim 1, wherein, The supporting block is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole penetrating through the supporting block, and the first mounting hole and the second mounting hole being arranged on two sides of the positioning cavity.

4. The valve keeper installation tool of claim 1, wherein, The supporting block is further provided with a third mounting hole used for connecting with the supporting rod, the third mounting hole being perpendicular to the first surface in an extension direction.

5. The valve keeper installation tool of any one of claims 1 to 4, wherein, One side of the first surface of the supporting block is provided with a first notch connected to a side wall of the positioning cavity.

6. The valve keeper installation tool of claim 5, wherein, One side of the first surface of the supporting block is further provided with a second notch connected to the side wall of the positioning cavity.

7. The valve keeper installation tool of claim 1, wherein, The supporting assembly further comprises a connecting block and a rotary connecting piece, one end of the connecting block being fixedly connected to the supporting rod, the other end of the connecting block having a receiving groove, one end of the pressing rod being located in the receiving groove, the rotary connecting piece penetrating through a side wall of the receiving groove and one end of the pressing rod.

8. The valve keeper installation tool of claim 1, wherein, The pressing assembly comprises a pressing plate, the pressing plate having a through hole, an axis of the through hole being perpendicular to one side of the pressing plate directed towards the upper seat of the valve spring, the through hole being used for penetrating a valve rod.

9. The valve keeper installation tool of claim 8, wherein, The pressing assembly further comprises a connecting frame and a pressing rod, one end of the connecting frame being fixedly connected to the pressing plate, the other end of the connecting frame being connected to one end of the pressing rod, the other end of the pressing rod being used for rotatably connecting to the pressing rod.

10. The valve keeper installation tool of claim 9, wherein, The pressing assembly further comprises an adapter sleeve, the adapter sleeve being sleeved on the pressing rod, the adapter sleeve being detachably connected to the pressing rod, and the pressing rod being rotatable relative to the adapter sleeve.

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