CN220556646U

CN220556646U - Pre-chamber spark plug installation tool

Info

Publication number: CN220556646U
Application number: CN202322047516.9U
Authority: CN
Inventors: 李鑫; 王健明; 李琳; 秦立恒; 陈昌万; 黄雅婷; 王亚平
Original assignee: Chongqing Pushi New Energy Technology Co ltd
Current assignee: Chongqing Pushi New Energy Technology Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-03-05
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a prechamber spark plug installation tool, comprising: the spark plug comprises a mounting rod assembly, a rotary sleeve assembly and a spark plug structure, wherein the rotary sleeve assembly is positioned at the outer side of the mounting rod assembly, and the spark plug structure is positioned below the mounting rod assembly; the installation pole subassembly includes mobile jib, dwang, shoulder hole, bolt hole, through-hole, spacing hole and external screw thread, the top fixedly connected with dwang of mobile jib, the bottom of mobile jib is provided with shoulder hole and bolt hole, the bolt hole is located the below of shoulder hole. Through setting up mobile jib, dwang, shoulder hole, bolt hole, through-hole, spacing hole, external screw thread, cover shell, adapter sleeve, voussoir, stopper, spring and clamp splice, put into the shoulder downthehole with the spark plug, the clamp splice is with the ditch slot form ripple joint at spark plug top to can further screw through the adapter sleeve, make the spark plug joint more tight, avoid the spark plug to damage because of collision or joint is inseparable dropping in the installation.

Description

Pre-chamber spark plug installation tool

Technical Field

The present utility model relates to the field of repair and maintenance tools, and in particular to a prechamber spark plug installation tool.

Background

The spark plug, commonly called a flame nozzle, has the function of discharging the pulse high voltage sent by the high voltage wire to break through air between two electrodes of the spark plug to generate electric spark so as to ignite the mixed gas in the cylinder or the precombustion chamber, so that the electrode part of the spark plug is positioned in the cylinder or the precombustion chamber, and the other end of the electrode part is positioned outside the cylinder or the precombustion chamber.

Because of the existing vehicle types, some spark plugs are positioned at the bottom of a cylinder or a precombustion chamber, and some spark plugs are positioned at the top, when the spark plugs are installed and disassembled, the internal elements of the spark plugs are fragile and are easy to damage after being impacted, so that certain inconvenience is brought to the installation of the spark plugs, particularly the installation of the spark plugs at the bottom, and the spark plugs are easier to drop.

The common tool is fixedly mounted by clamping with an insulator at the upper part of the spark plug, but the surface of the insulator is smooth, the common clamping cannot completely fix the spark plug, and the spark plug is still easy to drop or easily pulled out to damage under the condition of high force.

Disclosure of Invention

The utility model provides a spark plug mounting tool with a pre-combustion chamber, wherein after a spark plug is placed in a stepped hole, a clamping block in a mounting rod is clamped with a groove-shaped ripple at the top of the spark plug, and the spark plug is clamped tightly by further screwing a fastening sleeve, so that the damage of the spark plug caused by collision or the fact that the clamping is not tightly dropped in the mounting process is avoided.

To achieve the above object, there is provided a prechamber spark plug mounting tool comprising: the spark plug comprises a mounting rod assembly, a rotary sleeve assembly and a spark plug structure, wherein the rotary sleeve assembly is positioned at the outer side of the mounting rod assembly, and the spark plug structure is positioned below the mounting rod assembly;

the mounting rod assembly comprises a main rod, a rotating rod, a stepped hole, a bolt hole, a through hole, a limiting hole and external threads, wherein the rotating rod is fixedly connected to the top of the main rod, the stepped hole and the bolt hole are formed in the bottom of the main rod, the bolt hole is located below the stepped hole, the through hole and the limiting hole are formed in the circumferential surface of the main rod, the limiting hole is located above the through hole, and the external threads are formed in the circumferential surface of the main rod;

the rotary sleeve assembly comprises a sleeve shell, a fastening sleeve, a wedge block, a limiting block, a spring and a clamping block, wherein the sleeve shell is in threaded connection with the main rod through external threads, the fastening sleeve is fixedly connected to the bottom of the sleeve shell, the limiting block is fixedly connected to the circumferential surface of the wedge block, the spring is fixedly connected to the front side wall of the wedge block, the clamping block is fixedly connected to one end of the spring away from the wedge block, and a conical head is arranged on the front side wall of the clamping block.

According to the pre-combustion chamber spark plug mounting tool, the spark plug structure comprises an insulator, groove-shaped corrugations, a metal shell, a nut, a central electrode and a side electrode, wherein the groove-shaped corrugations are arranged on the circumferential surface of the insulator, the metal shell is fixedly connected to the bottom of the insulator, the nut is fixedly connected to the circumferential surface of the metal shell, the central electrode and the side electrode are fixedly connected to the bottom of the metal shell, and the side electrode is located on the rear side of the central electrode.

According to the pre-combustion chamber spark plug mounting tool, the number of the through holes and the limit holes is multiple, and the through holes and the limit holes are uniformly distributed on the circumferential surface of the main rod.

According to the pre-chamber spark plug installation tool, the wedge block, the spring and the clamping blocks are arranged in a plurality, and are all located in the through hole.

According to the pre-combustion chamber spark plug mounting tool, the number of the limiting blocks is multiple, the limiting blocks are located in the limiting holes, and the limiting blocks are in sliding connection with the main rod.

According to the pre-combustion chamber spark plug mounting tool, the through hole is communicated with the upper end of the stepped hole.

According to the pre-chamber spark plug installation tool, the clamping block is positioned on the inner side of the wedge block.

According to the pre-combustion chamber spark plug mounting tool, the outer diameter of the insulator is in clearance fit with the stepped hole.

The utility model has the beneficial effects that: through setting up mobile jib, dwang, shoulder hole, bolt hole, through-hole, spacing hole, external screw thread, cover shell, adapter sleeve, voussoir, stopper, spring and clamp splice, put into the shoulder downthehole with the spark plug, the clamp splice is with the ditch slot form ripple joint at spark plug top to can further screw through the adapter sleeve, make the spark plug joint more tight, avoid the spark plug to damage because of collision or joint is inseparable dropping in the installation.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a front view of a prechamber spark plug installation tool of the present utility model;

FIG. 2 is a cross-sectional view of a mounting stem assembly of the pre-chamber spark plug mounting tool of the present utility model;

FIG. 3 is a cross-sectional view of a swivel assembly of the pre-chamber spark plug installation tool of the present utility model;

FIG. 4 is a block diagram of a spark plug of the pre-chamber spark plug installation tool of the present utility model;

FIG. 5 is a cross-sectional view showing the structure of the tool for installing a spark plug in a prechamber according to the present utility model.

Legend description:

1. a mounting rod assembly; 2. a swivel sleeve assembly; 3. a spark plug structure;

101. a main rod; 102. a rotating rod; 103. a stepped hole; 104. bolt holes; 105. a through hole; 106. a limiting hole; 107. an external thread;

201. a casing; 202. a fastening sleeve; 203. wedge blocks; 204. a limiting block; 205. a spring; 206. clamping blocks;

301. an insulator; 302. groove-like corrugations; 303. a metal shell; 304. a nut; 305. a center electrode; 306. side electrodes.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1-5, a prechamber spark plug installation tool according to an embodiment of the utility model includes: the spark plug comprises a mounting rod assembly 1, a rotating sleeve assembly 2 and a spark plug structure 3, wherein the rotating sleeve assembly 2 is positioned on the outer side of the mounting rod assembly 1, and the spark plug structure 3 is positioned below the mounting rod assembly 1.

The installation pole subassembly 1 includes mobile jib 101, the dwang 102, the shoulder hole 103, the bolt hole 104, through-hole 105, spacing hole 106 and external screw thread 107, the top fixedly connected with dwang 102 of mobile jib 101, the bottom of mobile jib 101 is provided with shoulder hole 103 and bolt hole 104, bolt hole 104 is located the below of shoulder hole 103, be provided with through-hole 105 and spacing hole 106 on the periphery of mobile jib 101, spacing hole 106 is located the top of through-hole 105, the quantity of through-hole 105 and spacing hole 106 is provided with a plurality ofly, and evenly distributed is on the periphery of mobile jib 101, be provided with external screw thread 107 on the periphery of mobile jib 101, through-hole 105 link up with the upper end of shoulder hole 103.

The rotating sleeve assembly 2 comprises a sleeve 201, a fastening sleeve 202, a wedge 203, a limiting block 204, a spring 205 and a clamping block 206, wherein the sleeve 201 is in threaded connection with a main rod 101 through external threads 107, the fastening sleeve 202 is fixedly connected to the bottom of the sleeve 201, the limiting blocks 204 are fixedly connected to the circumferential surface of the wedge 203, the limiting blocks 204 are multiple in number and are all located in the limiting holes 106, the limiting blocks 204 are slidably connected with the main rod 101, the spring 205 is fixedly connected to the front side wall of the wedge 203, one end of the spring 205, far away from the wedge 203, is fixedly connected with the clamping block 206, a conical head is arranged on the front side wall of the clamping block 206, the clamping block 206 is located on the inner side of the wedge 203, the spring 205 and the clamping block 206 are multiple in number, and are all located in the through holes 105, and the fastening sleeve 202 is located above the wedge 203 and used for enabling the wedge 203 to move inwards.

The spark plug structure 3 comprises an insulator 301, a groove-shaped ripple 302, a metal shell 303, a nut 304, a center electrode 305 and a side electrode 306, wherein the groove-shaped ripple 302 is arranged on the circumferential surface of the insulator 301, the outer diameter of the insulator 301 is in clearance fit with the stepped hole 103, the metal shell 303 is fixedly connected to the bottom of the insulator 301, the nut 304 is fixedly connected to the circumferential surface of the metal shell 303, the center electrode 305 and the side electrode 306 are fixedly connected to the bottom of the metal shell 303, and the side electrode 306 is located on the rear side of the center electrode 305.

Working principle: when the spark plug is installed, the spark plug is placed in the installation rod assembly 1, the bolt hole 104 is matched with the nut 304, the groove-shaped corrugation 302 on the insulator 301 is clamped with the clamping block 206, the clamping block 206 is pressed outwards, the spring 205 is compressed, the wedge 203 moves outwards and is limited by the fastening sleeve 202, at the moment, the clamping block 206 is clamped with the insulator 301 and is not tight, the insulator 301 is smooth in surface and easy to drop under the condition of high force, the limiting block 204 slides in the limiting hole 106, the fastening sleeve 202 is rotated, the wedge 203 is pressed inwards by the inclined surface inside the fastening sleeve 202, the clamping block 206 is clamped between the groove-shaped corrugation 302 under the reactive force of the spring 205, at the moment, the clamping block 206 is very tight to clamp the insulator 301, the spark plug is aligned with the cylinder, and the installation of the rotating rotary rod 102 can be completed.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A prechamber spark plug installation tool, comprising: the spark plug comprises a mounting rod assembly (1), a rotary sleeve assembly (2) and a spark plug structure (3), wherein the rotary sleeve assembly (2) is positioned at the outer side of the mounting rod assembly (1), and the spark plug structure (3) is positioned below the mounting rod assembly (1);

the mounting rod assembly (1) comprises a main rod (101), a rotating rod (102), a stepped hole (103), a bolt hole (104), a through hole (105), a limiting hole (106) and external threads (107), wherein the rotating rod (102) is fixedly connected to the top of the main rod (101), the stepped hole (103) and the bolt hole (104) are formed in the bottom of the main rod (101), the bolt hole (104) is located below the stepped hole (103), the through hole (105) and the limiting hole (106) are formed in the circumferential surface of the main rod (101), the limiting hole (106) is located above the through hole (105), and the external threads (107) are formed in the circumferential surface of the main rod (101).

The rotary sleeve assembly (2) comprises a sleeve shell (201), a fastening sleeve (202), a wedge block (203), a limiting block (204), a spring (205) and a clamping block (206), wherein the sleeve shell (201) is in threaded connection with a main rod (101) through external threads (107), the fastening sleeve (202) is fixedly connected to the bottom of the sleeve shell (201), the limiting block (204) is fixedly connected to the circumferential surface of the wedge block (203), the spring (205) is fixedly connected to the front side wall of the wedge block (203), the clamping block (206) is fixedly connected to one end of the spring (205) far away from the wedge block (203), and a conical head is arranged on the front side wall of the clamping block (206).

2. The pre-chamber spark plug installation tool according to claim 1, wherein the spark plug structure (3) comprises an insulator (301), a groove-shaped corrugation (302), a metal shell (303), a nut (304), a center electrode (305) and a side electrode (306), the groove-shaped corrugation (302) is provided on the circumferential surface of the insulator (301), the metal shell (303) is fixedly connected to the bottom of the insulator (301), the nut (304) is fixedly connected to the circumferential surface of the metal shell (303), the center electrode (305) and the side electrode (306) are fixedly connected to the bottom of the metal shell (303), and the side electrode (306) is located at the rear side of the center electrode (305).

3. The prechamber spark plug installation tool as in claim 1, wherein the number of through holes (105) and limiting holes (106) is plural and uniformly distributed on the circumferential surface of the main rod (101).

4. The prechamber spark plug installation tool as recited in claim 1, wherein the wedge (203), spring (205), and clamp block (206) are provided in a plurality and in a plurality, and are each located inside the through hole (105).

5. The prechamber spark plug installation tool as in claim 1, wherein the number of stopper blocks (204) is plural and are each located inside the stopper hole (106), and the stopper blocks (204) are slidably connected to the main rod (101).

6. The prechamber spark plug mounting tool as in claim 1, wherein the through hole (105) is through an upper end of the stepped hole (103).

7. The pre-chamber spark plug installation tool of claim 1, wherein the clamp block (206) is located inside a wedge (203).

8. The pre-chamber spark plug installation tool of claim 2, wherein the insulator (301) has an outer diameter that is a clearance fit with the stepped bore (103).