Air tightness detection device for cylinder body of motorcycle

Abstract

The utility model discloses an air tightness detection device for a motorcycle cylinder block, and belongs to the technical field of cylinder detection. Comprising a detection platform, a moving plate and a support frame, a mounting groove is formed in the moving plate, and a cylinder body to be tested is clamped and fixed in the mounting groove; a driving motor is fixed to the supporting frame, the output end of the driving motor is connected with a telescopic rod, and the other end of the telescopic rod is connected with a sealing port piece through a universal shaft. The sealing port piece is composed of a supporting circular ring and an inflation bag, a ventilation circular channel is arranged in the middle of the inner ring face of the supporting circular ring, the inner side and the outer side of the ventilation circular channel are horizontally connected with an air inlet channel and an inflation channel respectively, and the other end of the inflation channel is communicated with the inflation bag. According to the utility model, the sealing port piece is formed by the supporting circular ring and the inflatable bag, the inflatable bag can realize a sealing effect in the process of sealing connection with the cylinder body opening, and can adapt to different cylinder opening sizes within a certain expansion range, so that the universality of the detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cylinder detection technical field, concretely relates to a motorcycle cylinder body air tightness detection device. BACKGROUND

[0002] The cylinder body is the main body of the engine, which connects each cylinder and the crankcase into a whole, and is the supporting framework for installing the piston, the crankshaft and other parts and accessories. In order to improve product quality, the cylinder body needs to be air tightness detected before it is shipped out, and only the qualified cylinder body can be used. For its sealing detection, the conventional means is to use waterway sealing detection and cylinder sleeve sealing detection, which needs 2-3 clamping and detection respectively, resulting in complicated air tightness test steps, low detection efficiency, high cost and influence on production progress.

[0003] At present, in order to improve the detection efficiency, a structure for detecting the air tightness of the cylinder by using the cylinder intake is designed, for example, a cylinder air tightness detection device disclosed in CN 107727334 A and a motorcycle cylinder body air tightness detection device disclosed in CN 210375575 U, but the sealing plate or sealing element connected with the opening of the cylinder body of the detection device needs to be replaced with sealing elements of different sizes according to the opening size of the cylinder of different types, which makes the detection device not universal and limits its wide application to different types of cylinders.

[0004] Therefore, it is urgent to design a cylinder air tightness measuring device, which can realize the function of closing the opening of different types of cylinders and improve the use range of the device. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiencies in the prior art, providing a motorcycle cylinder body air tightness detection device, which comprises a sealing port element composed of a supporting ring and an inflation bag. The inflation bag can realize sealing function during the sealing connection with the opening of the cylinder body, and can adapt to different cylinder opening sizes within a certain inflation range, improving the universality of the detection device.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a motorcycle cylinder body air tightness detection device, comprising a detection platform, two parallelly arranged through grooves are movably connected with a moving plate above the detection platform, an installation groove is arranged in the upper end surface of the moving plate, and a cylinder body to be measured is clamped and fixed in the installation groove;

[0007] A support frame is further arranged on the middle part of the detection platform in the direction perpendicular to the through groove, the support frame is composed of a support plate connected by two side support columns, a driving motor is fixed on the upper side of the support plate, an extension rod is connected to the output end of the driving motor and penetrates through the support plate downward, and a sealing port piece is connected to the other end of the extension rod through a universal shaft;

[0008] The sealing port piece is composed of a support ring and an inflation bag fixedly connected to the outer circumference of the support ring, a mounting hole for connecting the universal shaft is arranged in the center of the support ring, an air passage is arranged in the middle of the inner ring surface of the support ring, an air inlet channel and an inflation channel are horizontally connected to the inner and outer sides of the air passage respectively, the other end of the inflation channel is communicated with the inflation bag, and the other end of the air inlet channel is communicated with a bag inflation hole vertically arranged on the upper end surface of the support ring;

[0009] A gas measurement hole is further arranged on the end surface of the support ring between the air passage, the inflation channel and the air inlet channel, a gas measurement pipeline is connected in the gas measurement hole, the gas inlet end of the gas measurement pipeline is connected with a gas pump, and a gas pressure sensor is arranged at the gas outlet end.

[0010] Further, a support rod and a roller are sequentially connected to the lower end surface of the moving plate above the through groove, and the moving plate is movably connected in the through groove through the roller.

[0011] Further, the mounting groove is a circular groove, a plurality of clamping blocks are uniformly distributed on the groove side wall in the circumferential direction, the clamping blocks and the mounting groove side wall are connected through elastic members, and the contact surface of the clamping block and the cylinder body to be detected is arranged as an arc surface.

[0012] Further, an elastic layer is attached to the arc surface, the elastic layer is made of silica gel or rubber material, and the elastic member is made of a spring member or an elastic spring sheet.

[0013] Further, the clamping blocks and the elastic members are provided with at least four groups, and the clamping blocks are arranged in pairs.

[0014] Further, the inflation channel is provided with at least one, and two or more inflation channels are evenly communicated on the outer side of the air passage.

[0015] Further, except that the outer end of the inflation channel is communicated with the inside of the inflation bag, the inside of the inflation bag is tightly connected with the outer wall surface of the support ring.

[0016] The beneficial effects of the utility model are:

[0017] 1) In the device, the sealing port piece is composed of a support ring and an inflation bag, the inflation bag can realize sealing effect in the process of sealing connection with the opening of the cylinder body, can adapt to different cylinder opening sizes within a certain inflation range, and improves the universality of the detection device.

[0018] 2) The utility model discloses a mounting groove is through setting up clamping block and elastic piece to the measured cylinder body is fixed, can realize the clamping force of the measured cylinder body, can also adapt to the measured cylinder body of different appearance size again, and the contact surface of clamping block and the measured cylinder body is set as cambered surface, and the elastic layer is pasted on the cambered surface, can further avoid the damage to the surface of the measured cylinder body in the clamping process.

[0019] 3) The utility model discloses the detection platform and mobile plate between through the mode of cooperation of mounting groove and gyro wheel movable connection, can conveniently detect the in and out of the measured cylinder body before and after, and this kind of movement mode is more smooth, improves the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the utility model;

[0021] Figure 2 It is Figure 1 The sectional view of sealed port piece in it;

[0022] Figure 3 It is Figure 1 The enlarged structure schematic diagram of sealed port piece in it;

[0023] Figure 4 It is Figure 1 The plane structure diagram of mobile plate in it.

[0024] In the drawing, 1-detection platform, 2-tunnel, 3-mobile plate, 301-supporting rod, 302-roller, 4-mounting groove, 401-elastic piece, 402-clamping block, 403-elastic layer, 5-measured cylinder body, 6-supporting frame, 7-driving motor, 8-telescopic rod, 9-gimbal shaft, 10-sealed port piece, 11-supporting ring, 1101-mounting hole, 1102-ventilation annular channel, 1103-inflation channel, 1104-gas inlet channel, 1105-bag inflation hole, 12-inflatable bag, 13-gas measuring hole, 14-gas measuring pipeline. DETAILED DESCRIPTION

[0025] The utility model will be explained further in combination with the drawings and specific embodiment.

[0026] Embodiment: as Figure 1 The utility model discloses a motorcycle cylinder body air tightness detection device, including detection platform 1, the upper side of detection platform 1 is movablely connected with mobile plate 3 through two parallel tunnels 2 of setting, the lower end surface of mobile plate 3 above tunnel 2 is connected with supporting rod 301 and gyro wheel 302 in proper order, and mobile plate 3 is movablely connected in tunnel 2 through gyro wheel 302, the upper end surface middle part of mobile plate 3 is seted up with mounting groove 4, and the measured cylinder body 5 is clamped and fixed in mounting groove 4.

[0027] A support frame 6 is fixedly connected to the middle part of the detection platform 1 in the direction perpendicular to the through groove 2, and the support frame 6 is composed of a support plate connected to the upper part of two side support columns, and a driving motor 7 is fixed to the upper part of the support plate, and a telescopic rod 8 is connected to the output end of the driving motor 7 and penetrates through the support plate downward, and the other end of the telescopic rod 8 is connected to a sealing port piece 10 through a universal shaft 9.

[0028] As shown in Figure 2 and Figure 3 , the sealing port piece 10 is composed of a support ring 11 and an inflation bag 12 fixedly connected to the outer circumference thereof, wherein a mounting hole 1101 for connecting the universal shaft 9 is formed in the center of the support ring 11, an air passage 1102 is formed in the middle of the inner ring surface of the support ring 11, an air inlet channel 1104 and an inflation channel 1103 are horizontally connected to the inner and outer sides of the air passage 1102 respectively, the other end of the inflation channel 1103 is communicated with the inflation bag 12, and the other end of the air inlet channel 1104 is communicated with a bag inflation hole 1105 vertically arranged on the upper end surface of the support ring 11.

[0029] The inflation channel 1103 is at least one, and two or more inflation channels 1103 are evenly communicated on the outer side of the air passage 1102; except that the outer port of the inflation channel 1103 is communicated with the inside of the inflation bag 12, the rest of the inner side of the inflation bag 12 is tightly connected with the outer wall surface of the support ring 11.

[0030] A gas measurement hole 13 is also formed through the end surface of the support ring 11 between the gaps of the air passage 1102, the inflation channel 1103 and the air inlet channel 1104, and a gas measurement pipeline 14 is connected in the gas measurement hole 13, the gas inlet end of the gas measurement pipeline 14 is connected with a gas pump, and a gas pressure sensor is installed at the gas outlet end.

[0031] As shown in Figure 3 , the mounting groove 4 is a circular groove, and a plurality of clamping blocks 402 are uniformly distributed on the groove side wall in the circumferential direction, the clamping blocks 402 and the groove side wall are connected through elastic members 401, and at least four sets of clamping blocks 402 and elastic members 401 are installed, and the clamping blocks 402 are arranged in pairs.

[0032] The contact surface of the clamping block 402 and the cylinder body 5 to be measured is arranged as an arc surface, and an elastic layer 403 is attached to the arc surface, and the elastic layer 403 is made of silicone or rubber material; the elastic member 401 is made of spring member or elastic spring sheet.

[0033] Working process:

[0034] Firstly, the to-be-tested cylinder body 5 is clamped and fixed through the mounting groove 4 in the moving plate 3, the moving plate 3 is pushed to the position directly below the support frame 6, the driving motor 7 is turned on, the height and angle are adjusted through the telescopic rod 8 and the universal shaft 9, and the sealing port piece 10 is directly opposite the opening of the to-be-tested cylinder body 5.

[0035] By inflating the air bag 12 into the opening hole 1105, the air bag 12 is inflated and tightly sealed with the opening of the to-be-tested cylinder body 5, and the air bag 12 can adapt to different opening sizes of the to-be-tested cylinder body 5 within a certain inflation range during the inflation process, so that the sealing port piece 10 does not need to be frequently replaced, and different opening sizes of the to-be-tested cylinder body can be connected in turn, and the convenience and work efficiency of detection are improved.

[0036] Then, the detection gas is introduced into the sealed to-be-tested cylinder body 5 through the gas measuring hole 13 and the gas measuring pipeline 14, and the numerical result output by the air pressure sensor is observed, so that the air pressure change in the sealed cylinder is tested, and the air tightness of the cylinder is detected. Specifically, after continuously inputting the gas into the cylinder, the air pressure of the cylinder is maintained at a high state, and if the air pressure sensor detects that the air pressure in the cylinder is obviously reduced after standing for a period of time, it indicates that the air tightness of the cylinder is poor, and if the air pressure sensor does not detect that the air pressure in the cylinder is obviously changed after a period of time, it indicates that the air tightness of the cylinder is good.

[0037] In the device, the sealing port piece is composed of the supporting ring and the air bag, the air bag can realize sealing effect during sealing connection with the opening of the cylinder body, can adapt to different opening sizes of the cylinder within a certain inflation range, and the universality of the detection device is improved.

[0038] The above description is only used to explain the technical scheme of the utility model and is not limited, and other modifications or equivalent replacements of the technical scheme of the utility model made by those skilled in the art should be covered in the claim range of the utility model.

Claims

1. A motorcycle cylinder block air tightness testing device, characterized by: Including detection platform (1), the upper of detection platform (1) is movably connected with moving plate (3) through two parallelly arranged through slots (2), the upper end surface of moving plate (3) is provided with installation slot (4), and the to-be-tested cylinder body (5) is clamped and fixed in installation slot (4); The middle part of the detection platform (1) in the direction perpendicular to the through slot (2) is also provided with a support frame (6), which is composed of a support plate connected by two side support columns. The upper end of the support plate is fixedly connected with a driving motor (7). The output end of the driving motor (7) penetrates through the support plate and is connected with a telescopic rod (8) downward. The other end of the telescopic rod (8) is connected with a sealed port piece (10) through a universal shaft (9). The sealed port piece (10) is composed of a support ring (11) and an air inflation bag (12) fixedly connected to the outer circumference of the support ring (11). The center of the support ring (11) is provided with a mounting hole (1101) for connecting the universal shaft (9). The inner ring surface of the support ring (11) is provided with an air passage (1102) in the middle. The inner and outer sides of the air passage (1102) are respectively connected with an air inlet channel (1104) and an air inflation channel (1103) horizontally. The other end of the air inflation channel (1103) is in communication with the air inflation bag (12). The other end of the air inlet channel (1104) is in communication with a bag inflation hole (1105) vertically arranged on the upper end surface of the support ring (11). The end surface of the support ring (11) between the gaps of the air passage (1102), the air inflation channel (1103) and the air inlet channel (1104) is also provided with a gas measurement hole (13). The gas measurement hole (13) is connected with a gas measurement pipeline (14). The gas inlet end of the gas measurement pipeline (14) is connected with a gas pump, and the gas outlet end is provided with a gas pressure sensor.

2. The motorcycle cylinder block air tightness detection device according to claim 1, characterized in that: The lower end surface of the moving plate (3) corresponding to the upper side of the through slot (2) is sequentially connected with a support rod (301) and a roller (302). The moving plate (3) is movably connected in the through slot (2) through the roller (302).

3. The motorcycle cylinder block air tightness detection device according to claim 1, characterized in that: The installation slot (4) is a circular groove. A plurality of clamping blocks (402) are uniformly distributed on the groove side wall in the circumferential direction. The clamping blocks (402) and the side wall of the installation slot (4) are connected by elastic members (401). The contact surface of the clamping block (402) and the to-be-tested cylinder body (5) is an arc surface.

4. A motorcycle cylinder block air tightness testing device according to claim 3, characterized in that: An elastic layer (403) is attached to the arc surface. The elastic layer (403) is made of silicone or rubber material. The elastic member (401) is made of spring member or elastic spring sheet.

5. A motorcycle cylinder block air tightness testing device according to claim 3, characterized in that: The clamping block (402) and the elastic member (401) are provided with at least four groups, and the clamping blocks (402) are arranged in pairs.

6. The apparatus for detecting the air tightness of a motorcycle cylinder block according to claim 1, characterized in that: The air inflation channel (1103) is provided with at least one. Two or more air inflation channels (1103) are evenly connected on the outside of the air passage (1102).

7. The motorcycle cylinder head air tightness detection device according to claim 1, characterized in that: Except that the outer end of the air inflation channel (1103) is in communication with the inside of the air inflation bag (12), the inside of the air inflation bag (12) is tightly connected with the outer wall surface of the support ring (11).

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