CN220206989U

CN220206989U - Engine cylinder body gas tightness detects screw

Info

Publication number: CN220206989U
Application number: CN202321973932.5U
Authority: CN
Inventors: 朱国尧; 姚晶
Original assignee: Henan Guoda Power Technology Co ltd
Current assignee: Henan Guoda Power Technology Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-12-19
Anticipated expiration: 2033-07-24

Abstract

The utility model discloses an engine cylinder body air tightness detection screw, which relates to the technical field of engine cylinder body air tightness detection, and comprises a cylinder body, wherein the surface of the cylinder body is provided with a threaded hole, the surface of the threaded hole is in threaded connection with a detection screw body, the surface of the detection screw body is provided with a test channel, the surface of the test channel is provided with an air pipe, the other end of the air pipe is connected with air tightness test equipment, the joint of the air pipe and the upper surface of the detection screw body is provided with a sealing sleeve, the lower surface of the detection screw body is provided with a groove, the surface of the groove is in sliding connection with a movable block, and the lower surface of the movable block is fixedly connected with a lifting column.

Description

Engine cylinder body gas tightness detects screw

Technical Field

The utility model relates to the technical field of air tightness detection of engine cylinders, in particular to an air tightness detection screw of an engine cylinder.

Background

The engine cylinder air tightness detection screw is a special screw for detecting the air tightness of the engine cylinder. It is commonly used to detect whether there are air tightness problems with the engine block, such as poor cylinder wall seals, broken cylinder gaskets, etc. When the screw for detecting the air tightness of the engine cylinder body is used, the screw is firstly required to be installed on the engine cylinder body, so that good tightness between the screw and the cylinder body is ensured. Then, the air tightness test equipment is connected through the test channel, and the gas is injected into the cylinder body for detection. According to the test result, whether the cylinder body has the air tightness problem can be judged, and corresponding maintenance measures are adopted.

When the existing engine cylinder body air tightness detection screw is used, the detection screw is screwed on a threaded hole on the surface of the engine cylinder body, air tightness testing equipment is connected through a testing channel arranged on the surface of the screw, air pressure enters the cylinder body through the testing channel, and the air pressure change is smaller on the testing equipment, so that the cylinder body is well sealed; if the air pressure changes greatly, the problems of poor sealing of the cylinder wall, broken cylinder gaskets and the like may exist, but the existing detection screw has the defects of single function and poor practicability.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an engine cylinder body air tightness detection screw, which solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an engine cylinder body gas tightness detects screw, includes the cylinder body main part, the screw hole has been seted up on the surface of cylinder body main part, and the surface threaded connection of screw hole has the detection screw main part, and test channel has been seted up on the surface of detection screw main part, and test channel's surface is provided with the trachea, and tracheal other end is connected with gas tightness test equipment, and the junction of trachea and detection screw main part upper surface is provided with the seal cover, and the lower surface of detection screw main part is seted up flutedly, and the surface sliding connection of recess has the movable block, and the lower fixed surface of movable block is connected with the lift post.

Optionally, the interior top surface fixedly connected with spring of recess, the other end fixedly connected with movable block of spring, the fixed surface of recess lower part is connected with the sealing block, and the surface sliding connection of sealing block has the lift post.

Optionally, a sliding groove is formed in the side face of the groove, a sliding block is fixedly connected to the side face of the moving block, and a sliding block is connected to the surface of the sliding groove in a sliding mode.

Optionally, the interior top surface fixedly connected with of recess goes up the base, and the lower surface mounting of going up the base has the contact, and the upper surface fixedly connected with of movable block is the base down, and the upper surface mounting of base has the contact down, and the position of contact and base down is in contrast.

Optionally, an alarm is installed on the upper surface of the detection screw main body, the alarm is powered by an external power supply, and the contact are arranged at the input end of a control circuit of the alarm.

Optionally, an air hole is formed in the upper surface of the detection screw main body, and the lower end of the air hole is communicated with the groove.

(III) beneficial effects

The utility model provides an engine cylinder body air tightness detection screw which has the following beneficial effects:

1. this engine cylinder body gas tightness detects screw, through the recess, the sealing block, the movable block, the contact, alarm and setting up of gas pocket, make this engine cylinder body gas tightness detect screw possess the effect of the too high automatic alarm of cylinder body internal air pressure, during the use, screw the screw hole on cylinder body surface with detecting the screw body, then be connected tracheal upper end and gas tightness check out test set, gas tightness check out test set is with gas injection into the cylinder body through the trachea, gas pressure enters into cylinder body inside, and then produce the pressure differential, whether the cylinder body has the gas tightness problem, change through the atmospheric pressure in the cylinder body is measured to gas tightness test set, if the air pressure change is less, then say that the gas tightness of going cylinder body is good, if the air pressure change is great, probably there is cylinder wall bad or cylinder gasket breakage scheduling problem, during the measuring, when the internal air pressure of cylinder body is too big, make the movable block slide at the surface of recess, upwards squeeze the spring, the base upwards moves down in the while driving, when the internal air pressure of cylinder body reaches a definite value, contact and the contact on the upper surface of base and the contact down, the contact and the contact of the contact, and the alarm is reached after the contact, the alarm is continued to the work, the alarm is closed, the purpose is reached, and the alarm is reached and the alarm is continued to the work is played to the alarm.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the front view of the present utility model;

FIG. 3 is a schematic view of the present utility model in elevation;

fig. 4 is a schematic diagram of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a cylinder body; 2. a threaded hole; 3. detecting a screw main body; 4. a test channel; 5. an air pipe; 51. sealing sleeve; 6. a groove; 7. a sealing block; 8. a moving block; 9. a spring; 10. a chute; 11. a slide block; 12. lifting columns; 13. an upper base; 14. a contact; 15. a lower base; 16. a contact; 17. an alarm; 18. and (5) air holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1 to 4, the present utility model provides the following technical solutions: the utility model provides an engine cylinder body gas tightness detects screw, including cylinder body 1, screw hole 2 has been seted up to cylinder body 1's surface, screw hole 2's surface threaded connection has detection screw body 3, test channel 4 has been seted up to detection screw body 3's surface, test channel 4's surface is provided with trachea 5, trachea 5's the other end and gas tightness test equipment are connected, trachea 5 and detection screw body 3 upper surface's junction is provided with seal cover 51, detection screw body 3's lower surface has seted up recess 6, recess 6's interior top surface fixedly connected with spring 9, spring 9's the other end fixedly connected with movable block 8, the surface fixedly connected with sealing block 7 of recess 6 lower part, sealing block 7's surface sliding connection has lifting column 12, spout 10 has been seted up to recess 6's side fixedly connected with slider 11, sliding connection of spout 10 has slider 11, recess 6's interior top surface fixedly connected with upper base 13, upper base 13's lower surface mounting has contact 14, movable block 8's upper surface fixedly connected with lower base 15, lower base 15's upper surface mounting contact 16, contact 14 and lower base 15's position contrast recess 6, the air hole detector 17 is connected with the air vent hole detector 18 at the surface of the detector of recess 3, the air vent, the detector 18 is connected with the air vent 17, the tip is connected with the air vent of alarm device is connected with at the surface 17 at the surface of the detector 3, the air vent.

In order to achieve the purpose of improving the practicality of detecting the screw, during the use, screw the screw body 3 to the screw hole 2 on cylinder body 1 surface, then with the upper end and the gas tightness check out test set of trachea 5, gas tightness check out test set is through trachea 5 with gas injection to cylinder body 1 in, gas pressure enters into cylinder body 1 inside, and then produce the pressure differential, judge whether cylinder body 1 has the gas tightness problem, measure the change of the atmospheric pressure in the cylinder body 1 through gas tightness test set, if the atmospheric pressure change is less, then go out cylinder body 1's gas tightness is good, if the atmospheric pressure change is great, probably there is the problem such as cylinder wall sealing failure or cylinder gasket breakage, during the measuring process, the atmospheric pressure is pushed lifting column 12 at the surface of sealing block 7 upwards slides, make the surface sliding of movable block 8 at recess 6, upwards squeeze spring 9, drive down base 15 upwards simultaneously, when the atmospheric pressure in cylinder body 1 reaches a definite value, contact 16 and the contact 14 of upper surface of upper base 15, contact 16 and contact 14 contact, after the atmospheric pressure change is less than the contact, then, go out cylinder body 17's gas tightness, the closed circuit that makes the alarm 17 starts to send out in time, and the warning signal is sent out to the alarm, and the warning signal is played in time, and the warning signal is sent out to the personnel and is stopped in time, and the warning signal is sent out to the alarm is used to the alarm, and the warning device is finished.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides an engine cylinder body gas tightness detects screw, includes cylinder body main part, its characterized in that: threaded holes are formed in the surface of the cylinder body main body, detection screw main bodies are connected to the surface threads of the threaded holes, test channels are formed in the surfaces of the detection screw main bodies, air pipes are arranged on the surfaces of the test channels, the other ends of the air pipes are connected with air tightness test equipment, sealing sleeves are arranged at the connecting positions of the air pipes and the upper surfaces of the detection screw main bodies, grooves are formed in the lower surfaces of the detection screw main bodies, moving blocks are connected to the surfaces of the grooves in a sliding mode, and lifting columns are fixedly connected to the lower surfaces of the moving blocks.

2. The engine block air tightness detection screw according to claim 1, wherein: the inner top surface of the groove is fixedly connected with a spring, the other end of the spring is fixedly connected with a moving block, the surface of the lower part of the groove is fixedly connected with a sealing block, and the surface of the sealing block is slidably connected with a lifting column.

3. The engine block air tightness detection screw according to claim 1, wherein: a sliding groove is formed in the side face of the groove, a sliding block is fixedly connected to the side face of the moving block, and the sliding block is connected to the surface of the sliding groove in a sliding mode.

4. The engine block air tightness detection screw according to claim 1, wherein: the inner top surface of the groove is fixedly connected with an upper base, the lower surface of the upper base is provided with a contact, the upper surface of the moving block is fixedly connected with a lower base, the upper surface of the lower base is provided with a contact, and the positions of the contact and the lower base are compared.

5. The engine block air tightness detection screw according to claim 4, wherein: the upper surface of the detection screw main body is provided with an alarm, the alarm is powered by an external power supply, and a contact are arranged at the input end of a control circuit of the alarm.

6. The engine block air tightness detection screw according to claim 1, wherein: and the upper surface of the detection screw main body is provided with air holes, and the lower ends of the air holes are communicated with the grooves.