Valve removal tool

Abstract

The present invention provides a valve disassembly tool, including a clamping assembly and a positioning assembly. The clamping assembly includes a first clamp handle and a second clamp handle, the first clamp handle includes a first clamping part, a first assembly part, a bearing part and a first gripping part connected in sequence, and the second clamp handle includes a second clamping part, a second assembly part, a connecting part and a second gripping part connected in sequence. The positioning assembly includes: a fixing claw, a connecting seat and a fixed seat, the top end of the fixing claw is hinged to the bearing part, the connecting seat is slidably arranged on the bearing part, and a receiving hole is provided on the bottom surface of the connecting seat. A locking strip is provided on the side wall of the fixed seat close to the fixing claw, a connecting shaft and an operating hole are provided on the fixed seat, and the connecting shaft is movably arranged inside the receiving hole. The valve disassembly tool created by the present invention can reduce the difficulty of disassembling the valve mechanism and improve the maintenance efficiency of the valve mechanism.

Description

Technical Field

[0001] The invention belongs to the field of diesel engine maintenance equipment, and in particular relates to a valve disassembly tool. Background Art

[0002] The valve train is a vital component of a diesel engine. During operation, it controls the intake and exhaust of the cylinders, ensuring sufficient combustion of the fuel within them. Because the valve train operates frequently during diesel engine operation, it is prone to damage during actual use.

[0003] The existing technology lacks dedicated tools for disassembling the valve train. Therefore, when repairing the valve train, workers must first remove the entire cylinder head from the diesel engine, then transport it to a repair shop to disassemble the valve train before repairing or replacing the internal parts. This seriously reduces the efficiency of diesel engine repair and fails to meet actual work needs. Summary of the Invention

[0004] In view of this, the present invention aims to provide a valve removal tool to solve the above technical problems.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A valve removal tool comprises a clamping assembly and a positioning assembly; the clamping assembly comprises a first clamp handle and a second clamp handle, the first clamp handle comprises a first clamping portion, a first assembly portion, a bearing portion and a first gripping portion connected in sequence, the second clamp handle comprises a second clamping portion, a second assembly portion, a connecting portion and a second gripping portion connected in sequence, the second assembly portion is hinged to the first assembly portion, and a clamping gap is formed between the second clamping portion and the first clamping portion; the positioning assembly comprises: a fixing claw, a connecting seat and a fixing seat, the top end of the fixing claw is connected to the bearing seat The carrying parts are hinged, and a fixing tooth is provided at the bottom end; the connecting seat is slidably arranged on the carrying part, the connecting seat is located between the fixing claw and the first assembly part, and a receiving hole is provided on the bottom surface of the connecting seat; a locking strip is provided on the side wall of the fixing seat close to the fixing claw, and a locking groove for accommodating the fixing tooth is provided on the side wall of the locking strip close to the fixing claw; a connecting shaft is provided on the top surface of the fixing seat, and the connecting shaft is movably arranged inside the receiving hole, and an operating hole is also provided on the side wall of the fixing seat, and the axial direction of the operating hole is parallel to the plane where the clamping assembly is located.

[0007] Furthermore, a pin hole is provided on the side wall of the bearing part close to the second gripping part, the pin hole is arranged between the fixing claw and the first gripping part, and a positioning pin is provided inside the pin hole; a positioning hole is provided on the side wall of the second gripping part close to the bearing part, and the positioning hole is aligned with the positioning pin; the valve disassembly tool also includes a reset spring, one end of the reset spring is sleeved on the positioning pin, and the other end is inserted into the positioning hole.

[0008] Furthermore, a connecting pin is provided on the side wall of the first clamping portion close to the clamping gap and on the side wall of the second clamping portion close to the clamping gap.

[0009] Furthermore, an assembly groove for accommodating the bearing section is provided on the top end surface of the fixing claw, and a first rotation hole is also provided on the side wall of the fixing claw, the first rotation hole is connected to the assembly groove, and a rotation shaft is provided inside the first rotation hole; a second rotation hole is provided on the bearing portion and is opposite to the first rotation hole, and the rotation shaft is inserted into the second rotation hole.

[0010] Furthermore, a connecting piece is provided on the top surface of the bearing part, an oblong hole is provided on the connecting piece, and the length direction of the oblong hole is parallel to the length direction of the bearing part; two connecting ears are provided on the top surface of the connecting seat in parallel with each other, a sliding shaft is provided between the two connecting ears, and the sliding shaft is placed inside the oblong hole.

[0011] Furthermore, a retaining spring is provided on the connecting shaft, and the outer diameter of the retaining spring is larger than the outer diameter of the connecting shaft; the accommodating hole includes an accommodating section and a limiting section, the accommodating section is located above the limiting section, and the inner diameter of the accommodating section is equal to the outer diameter of the retaining spring, and the inner diameter of the limiting section is equal to the outer diameter of the connecting shaft.

[0012] Furthermore, the length direction of the locking strip forms an angle of 30°-60° with the length direction of the bearing portion, and the end of the locking strip close to the fixing seat is higher than the end away from the fixing seat; a plurality of locking grooves are provided on the locking strip, and the plurality of locking grooves are evenly arranged along the length direction of the locking strip.

[0013] Furthermore, a splicing groove is provided on the side wall of the first assembly part, and a first assembly hole is provided on the top surface of the first assembly part. The first assembly hole is connected to the splicing groove, and an assembly shaft is provided inside the first assembly hole; the second assembly part is placed inside the splicing groove, and a second assembly hole is provided on the second assembly part, which is opposite to the first assembly hole, and the assembly shaft is inserted into the second assembly hole.

[0014] Compared with the prior art, the valve removal tool created by the present invention has the following advantages:

[0015] The valve disassembly tool described in the present invention can clamp and secure the gear lock disk of the valve mechanism through a clamping assembly, and can prevent the relative position of the positioning assembly and the valve mechanism from changing by cooperating with the operating hole and the threaded connection on the side of the cylinder head. When disassembling and repairing the valve, the operator can lift the clamping assembly to separate the gear lock disk from the adjustment disk, and then fix the position of the gear lock disk by cooperating with the fixing claw and the fixing seat, thereby reducing the difficulty of valve mechanism maintenance and providing a reliable operating space for disassembly and assembly of internal valve mechanism parts, thereby improving valve mechanism maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A schematic structural diagram of a valve removal tool according to an embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of the valve removal tool according to an embodiment of the present invention at another angle;

[0019] Figure 3 A schematic structural diagram of the first clamp handle according to an embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of the second clamp handle according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic structural diagram of the connecting seat and the fixing seat according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic structural diagram of the fixing claw described in an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 11-first clamping part; 12-first assembly part; 121-first assembly hole; 122-assembly axis; 13-bearing part; 131-pin hole; 132-locating pin; 133-second rotating hole; 134-connecting piece; 135-long round hole; 14-first gripping part; 21-second clamping part; 22-second assembly part; 221-second assembly hole; 23-connecting part; 24-second gripping part; 241-locating hole; 3-fixing claw; 31-fixing tooth; 32-assembly groove; 33-first rotating hole; 34-rotating axis; 4-connecting seat; 41-accommodating hole; 42-connecting ear; 421-sliding axis; 5-fixing seat; 51-locking strip; 511-locking groove; 52-connecting axis; 521-circlip; 53-operating hole; 6-reset spring; 7-connecting pin. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] A valve removal tool, the structure of which can be Figures 1-6For illustration, as shown in the figure, in this embodiment, the valve disassembly tool may include a clamping assembly and a positioning assembly, wherein the clamping assembly is used to clamp and fix the part gear locking disk of the valve mechanism, and drive the part gear locking disk to separate from the part adjustment disk during the disassembly and maintenance process; the positioning assembly is used to fix the relative position of the device and the valve mechanism, and lock the lifting height of the part gear locking disk after the part gear locking disk is separated from the part adjustment disk.

[0030] Specifically, the clamping assembly includes a first clamp handle and a second clamp handle, such as Figure 3 and Figure 4 As shown, the first pliers handle includes a first clamping portion 11, a first assembly portion 12, a load-bearing portion 13, and a first gripping portion 14, which are connected in sequence. The second pliers handle includes a second clamping portion 21, a second assembly portion 22, a connecting portion 23, and a second gripping portion 24, which are connected in sequence. During assembly, the operator can hinge the second assembly portion 22 to the first assembly portion 12, thereby forming a clamping gap between the second clamping portion 21 and the first clamping portion 11 for accommodating the component toothed locking disk. Because the second assembly portion 22 is hinged to the first assembly portion 12, when the first gripping portion 14 and the second gripping portion 24 move closer together, the internal space of the clamping gap increases, facilitating the insertion of the component toothed locking disk. Conversely, when the first gripping portion 14 and the second gripping portion 24 move away from each other, the internal space of the clamping gap decreases, allowing the component toothed locking disk to be clamped and secured by the second clamping portion 21 and the first clamping portion 11.

[0031] Optionally, to achieve assembly between the second assembly portion 22 and the first assembly portion 12, in this embodiment, a splicing groove may be provided on the side wall of the first assembly portion 12, and a first assembly hole 121 communicating with the splicing groove may be provided on the top surface of the first assembly portion 12, and a second assembly hole 221 should be provided on the second assembly portion 22. During assembly, a worker may place the second assembly portion 22 within the splicing groove and align the second assembly hole 221 with the first assembly hole 121. The worker then inserts the assembly shaft 122 into the first assembly hole 121 and inserts the bottom end of the assembly shaft 122 into the second assembly hole 221, thereby completing the hinged connection between the second assembly portion 22 and the first assembly portion 12.

[0032] Because the side walls of the component toothed locking disk are provided with multiple toothed grooves, in order to enhance the clamping and securing effect of the clamping assembly on the component toothed locking disk, in this embodiment, connecting pins 7 are provided on the side walls of the first clamping portion 11 near the clamping gap and on the side walls of the second clamping portion 21 near the clamping gap. When the component toothed locking disk enters the clamping gap and is clamped and secured by the first clamping portion 11 and the second clamping portion 21, the connecting pins 7 are inserted into the toothed grooves on the side walls of the component toothed locking disk. The cooperation between the connecting pins 7 and the toothed grooves prevents relative movement between the component toothed locking disk and the clamping assembly during use, thereby facilitating subsequent operations by personnel.

[0033] In addition, in order to improve the convenience for the staff to drive the clamping gap to open and close, this embodiment further provides a reset spring 6 between the first clamp handle and the second clamp handle. Specifically, in order to achieve the assembly of the reset spring 6, a pin hole 131 can be provided on the side wall of the load-bearing portion 13 close to the second gripping portion 24. The pin hole 131 is arranged between the fixed claw 3 and the first gripping portion 14, and a positioning pin 132 should be provided inside the pin hole 131. Correspondingly, a positioning hole 241 can be provided on the side wall of the second gripping portion 24 close to the load-bearing portion 13, and the positioning hole 241 should be aligned with the positioning pin 132. During assembly, the staff can put one end of the reset spring 6 on the positioning pin 132 and insert the other end into the positioning hole 241. When the first gripping portion 14 and the second gripping portion 24 approach each other, the return spring 6 will be compressed. When the part tooth lock disk enters the clamping gap, the staff can release the second gripping portion 24. At this time, the elastic force accumulated inside the return spring 6 will drive the second gripping portion 24 to move away from the first gripping portion 14, so that the first clamping portion 11 and the second clamping portion 21 clamp and fix the part tooth lock disk.

[0034] To facilitate the removal and replacement of components within the valve train, once the clamping assembly secures the locking disc, the operator can lift the clamping assembly upward to separate the locking disc from the adjustment disc, thereby creating space for component removal. In this embodiment, to prevent the locking disc from changing height after lifting, a positioning assembly is used to lock the clamping assembly. Specifically, the positioning assembly comprises a fixing claw 3, a connecting seat 4, and a fixing seat 5. The top end of the fixing claw 3 is hingedly connected to the bearing portion 13, and a fixing tooth 31 is provided at the bottom end of the fixing claw 3. The connecting seat 4 is slidably arranged on the bearing portion 13, the connecting seat 4 is located between the fixing claw 3 and the first assembly portion 12, and a receiving hole 41 is provided on the bottom surface of the connecting seat 4; a locking strip 51 is provided on the side wall of the fixing seat 5 close to the fixing claw 3, and a locking groove 511 for accommodating the fixing tooth 31 is provided on the side wall of the locking strip 51 close to the fixing claw 3, a connecting shaft 52 is provided on the top surface of the fixing seat 5, and an operating hole 53 is also provided on the side wall of the fixing seat 5, the axial direction of which is parallel to the plane where the clamping assembly is located.

[0035] During assembly, a worker can insert the connecting shaft 52 into the receiving hole 41, thereby enabling the fixing seat 5 to rotate and rise and fall. To prevent the connecting shaft 52 from separating from the receiving hole 41, a retaining spring 521 having an outer diameter larger than that of the connecting shaft 52 can be provided on the connecting shaft 52. Accordingly, the receiving hole 41 may include a receiving section and a limiting section, wherein the receiving section is located above the limiting section, and the inner diameter of the receiving section is equal to the outer diameter of the retaining spring 521, and the inner diameter of the limiting section is equal to the outer diameter of the connecting shaft 52. When the connecting shaft 52 is inserted into the receiving hole 41, the retaining spring 521 will be located inside the receiving section. By providing the retaining spring 521, the connecting shaft 52 can be axially limited without restricting the degree of freedom of rotation, thereby preventing the connecting shaft 52 from separating from the receiving hole 41.

[0036] During use, the operator can fit the operating hole 53 over the alignment thread on the side of the cylinder head to fix the position of the positioning assembly. Then, the clamping assembly can be used to lift the component tooth lock plate to create a space between the component tooth lock plate and the component adjustment plate for easy operation. Next, the operator can rotate the fixing claw 3 so that the fixing tooth 31 is inserted into the locking groove 511 on the locking bar 51, thereby locking the height of the clamping assembly to prevent the component tooth lock plate from slipping during maintenance.

[0037] To achieve the hinged connection between the fixing claw 3 and the load-bearing portion 13, a mounting groove 32 for accommodating the load-bearing section can be provided on the top end surface of the fixing claw 3. A first rotation hole 33 is also provided on the side wall of the fixing claw 3, and the first rotation hole 33 is connected to the mounting groove 32. Correspondingly, a second rotation hole 133 should be provided on the load-bearing portion 13. When the load-bearing portion 13 is placed in the mounting groove 32, the second rotation hole 133 will align with the first rotation hole 33. A worker can insert a rotation shaft 34 along the first rotation hole 33 into the second rotation hole 133, thereby allowing the fixing claw 3 to rotate along the rotation shaft 34 during use.

[0038] Furthermore, to facilitate assembly between the connecting seat 4 and the bearing portion 13, this embodiment provides a connecting piece 134 on the top surface of the bearing portion 13, and a long circular hole 135 is provided on the connecting piece 134, the length of which is parallel to the length of the bearing portion 13. Accordingly, two connecting ears 42 are provided on the top surface of the connecting seat 4, which are arranged parallel to each other, and a sliding shaft 421 is provided between the two connecting ears 42. During assembly, a worker can insert the sliding shaft 421 into the long circular hole 135. During use, the sliding shaft 421 can be driven to slide along the length of the long circular hole 135, thereby facilitating adjustment of the distance between the fixing seat 5 and the valve mechanism and facilitating entry of the thread into the operating hole 53.

[0039] Optionally, in order to make the device have a variety of parts tooth lock disc locking heights, such as Figure 5 As shown, the length of the locking strip 51 should form an angle of 30°-60° with the length of the bearing portion 13, and the end of the locking strip 51 closer to the fixing base 5 should be higher than the end farther away from the fixing base 5. Accordingly, the locking strip 51 may be provided with multiple locking grooves 511, evenly spaced along the length of the locking strip 51. In actual use, personnel can select the locking grooves 511 into which the fixing teeth 31 are inserted based on the required lifting height of the component tooth lock plate, thereby locking the clamping assembly at different heights.

[0040] The following describes the effects of the above scheme:

[0041] This embodiment provides a valve disassembly tool that can clamp and secure the gear lock disk of the valve mechanism through a clamping assembly. The tool also prevents the relative position of the positioning assembly and the valve mechanism from changing by interfacing the operating hole with the threaded connection on the side of the cylinder head. During valve disassembly and repair, the operator can lift the clamping assembly to separate the gear lock disk from the adjustment disk, and then secure the gear lock disk in place using the engagement of the fixing claws and the fixing seat. This reduces the difficulty of valve mechanism repair and provides a reliable operating space for disassembly and assembly of internal valve mechanism components, thereby improving valve mechanism repair efficiency.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve removal tool, characterized in that The invention comprises a clamping assembly and a positioning assembly; the clamping assembly comprises a first clamp handle and a second clamp handle, the first clamp handle comprises a first clamping portion (11), a first assembly portion (12), a bearing portion (13) and a first gripping portion (14) connected in sequence, the second clamp handle comprises a second clamping portion (21), a second assembly portion (22), a connecting portion (23) and a second gripping portion (24) connected in sequence, the second assembly portion (22) is hinged to the first assembly portion (12), and a clamping gap is formed between the second clamping portion (21) and the first clamping portion (11); the positioning assembly comprises: a fixing claw (3), a connecting seat (4) and a fixing seat (5), the top end of the fixing claw (3) is hinged to the bearing portion (13), and the bottom end is provided with a fixing The connecting seat (4) is slidably arranged on the bearing portion (13), the connecting seat (4) is located between the fixing claw (3) and the first assembly portion (12), and a receiving hole (41) is provided on the bottom surface of the connecting seat (4); a locking strip (51) is provided on the side wall of the fixing seat (5) close to the fixing claw (3), and a locking groove (511) for receiving the fixing tooth (31) is provided on the side wall of the locking strip (51) close to the fixing claw (3); a connecting shaft (52) is provided on the top surface of the fixing seat (5), and the connecting shaft (52) is movably arranged inside the receiving hole (41), and an operating hole (53) is also provided on the side wall of the fixing seat (5), and the axial direction of the operating hole (53) is parallel to the plane where the clamping assembly is located.

2. A valve removal tool according to claim 1, characterized in that: A pin hole (131) is provided on the side wall of the bearing portion (13) close to the second gripping portion (24), the pin hole (131) is arranged between the fixing claw (3) and the first gripping portion (14), and a positioning pin (132) is provided inside the pin hole (131); a positioning hole (241) is provided on the side wall of the second gripping portion (24) close to the bearing portion (13), the positioning hole (241) is aligned with the positioning pin (132); the valve disassembly tool also includes a reset spring (6), one end of the reset spring (6) is sleeved on the positioning pin (132), and the other end is inserted into the positioning hole (241).

3. The valve removal tool according to claim 1, characterized in that: A connecting pin (7) is provided on the side wall of the first clamping portion (11) close to the clamping gap and on the side wall of the second clamping portion (21) close to the clamping gap.

4. The valve removal tool according to claim 1, characterized in that: A mounting groove (32) for accommodating the bearing portion is provided on the top end surface of the fixing claw (3), and a first rotating hole (33) is also provided on the side wall of the fixing claw (3), the first rotating hole (33) is connected to the mounting groove (32), and a rotating shaft (34) is provided inside the first rotating hole (33); a second rotating hole (133) is provided on the bearing portion (13) and is aligned with the first rotating hole (33), and the rotating shaft (34) is inserted into the second rotating hole (133).

5. The valve removal tool according to claim 1, characterized in that: A connecting piece (134) is provided on the top surface of the bearing portion (13), an oblong hole (135) is provided on the connecting piece (134), and the length direction of the oblong hole (135) is parallel to the length direction of the bearing portion (13); two connecting ears (42) are provided on the top surface of the connecting seat (4), and a sliding shaft (421) is provided between the two connecting ears (42), and the sliding shaft (421) is placed inside the oblong hole (135).

6. The valve removal tool according to claim 1, characterized in that: A retaining spring (521) is provided on the connecting shaft (52), and the outer diameter of the retaining spring (521) is larger than the outer diameter of the connecting shaft (52); the accommodating hole (41) comprises an accommodating section and a limiting section, the accommodating section is located above the limiting section, and the inner diameter of the accommodating section is equal to the outer diameter of the retaining spring (521), and the inner diameter of the limiting section is equal to the outer diameter of the connecting shaft (52).

7. The valve removal tool according to claim 1, characterized in that: The length direction of the locking strip (51) forms an angle of 30°-60° with the length direction of the bearing portion (13), and the end of the locking strip (51) close to the fixing seat (5) is higher than the end away from the fixing seat (5); a plurality of locking grooves (511) are provided on the locking strip (51), and the plurality of locking grooves (511) are evenly arranged along the length direction of the locking strip (51).

8. The valve removal tool according to claim 1, characterized in that: A splicing groove is provided on the side wall of the first assembly part (12), a first assembly hole (121) is provided on the top surface of the first assembly part (12), the first assembly hole (121) is connected to the splicing groove, and an assembly shaft (122) is provided inside the first assembly hole (121); the second assembly part (22) is placed inside the splicing groove, a second assembly hole (221) is provided on the second assembly part (22) and is aligned with the first assembly hole (121), and the assembly shaft (122) is inserted into the second assembly hole (221).

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