Cylinder pressure gauge for cylinder pressure test

Abstract

The utility model relates to the technical field of cylinder pressure gauges, and discloses a cylinder pressure gauge for cylinder pressure testing, which comprises a gauge body, a gauge cover is sleeved at the top end of the gauge body, slots are arranged on two sides of the top end of the gauge body, insertion rods are arranged on two sides of the inner wall of the gauge cover, each group of insertion rods are inserted into the slots, and the insertion rods are inserted into the slots. The two sides of the gauge body are provided with dismounting assemblies used for limiting and fixing the insertion rods in the insertion grooves in a central symmetry mode, and the side end of the gauge body is provided with a positioning assembly used for locking the dismounting assemblies. The device can replace the mode that most meter covers are installed through threads in the prior art, the meter covers are installed more stably, the situations such as thread slipping are not prone to occurring, operation is easy, meanwhile, the rubber pad is matched, the sealing performance of installation of the meter covers and the meter body can be improved, and therefore the testing accuracy of the device is not prone to being affected.

Description

Technical Field

[0001] This utility model relates to the field of cylinder pressure gauge technology, specifically to a cylinder pressure gauge for cylinder pressure testing. Background Technology

[0002] Cylinder pressure testing is a core method for detecting cylinder sealing in engine fault diagnosis. By measuring the pressure value inside the cylinder during the piston compression stroke, it is possible to determine whether the working condition of internal mechanical components (such as piston rings, valves, cylinder head gaskets, etc.) is normal. At this time, a cylinder pressure gauge is required, which is a special tool for detecting the compression pressure inside the engine cylinder.

[0003] Currently, most cylinder pressure gauges use threaded covers for installation. Repeated tightening can cause thread wear, leading to issues like stripped threads and poor sealing during installation. This negatively impacts both the accuracy of the cover installation and the gauge's performance. To address these problems, we provide a cylinder pressure gauge specifically designed for cylinder pressure testing. Utility Model Content

[0004] The purpose of this utility model is to provide a cylinder pressure gauge for cylinder pressure testing, which solves the problem in the prior art that the threads are prone to wear, leading to stripping of the gauge cover and poor sealing, thus affecting the use of the pressure gauge.

[0005] This utility model provides the following technical solution: a cylinder pressure gauge for cylinder pressure testing, including a gauge body, a gauge cover fitted on the top of the gauge body, slots on both sides of the top of the gauge body, and insert rods installed on both sides of the inner wall of the gauge cover. Each set of insert rods is inserted into the slot. Disassembly and assembly components for limiting and fixing the insert rods in the slots are centrally symmetrically arranged on both sides of the gauge body. A positioning component for locking the disassembly and assembly components is provided on the side end of the gauge body.

[0006] As a preferred embodiment of the above technical solution, each set of disassembly and assembly components includes a slide groove, each set of slide grooves is formed on the inner wall of the slot, each set of slide grooves is equipped with a spring on the inner side, each set of slide grooves is slidably installed with a limit rod at the opening, and the inner end of the limit rod is connected to the spring, each set of insertion rods has a limit groove formed at the end near the limit rod, and each set of limit rods is inserted into the limit groove.

[0007] The above technical solution enables the insertion rod to be limited and fixed, thus completing the installation of the watch cover. This replaces most of the existing technologies that use threaded installation, making the watch cover installation more stable, simple to operate, and less likely to affect the accuracy of the device's testing, greatly increasing the practicality of the device.

[0008] As a preferred embodiment of the above technical solution, each set of limiting rods has a lever connected to its surface, and each set of sliding grooves has a guide opening through one side of its inner wall, with each set of levers slidably installed in the guide opening.

[0009] The above technical solution allows the limiting position of the insert rod to be released, making the watch cover easy and convenient to remove.

[0010] As a preferred embodiment of the above technical solution, a connecting plate is installed at the end of the two sets of levers away from the limiting rod, the positioning component is located on the side of the watch body near the connecting plate, and protrusions are equidistantly connected to the surface of the connecting plate.

[0011] The above technical solution allows the connecting plate to slide along the side of the watch body, thus enabling the connecting plate to simultaneously drive two sets of levers to slide within the guide opening, making operation more convenient.

[0012] As a preferred embodiment of the above technical solution, a rubber pad is installed at the contact point between the inner wall of the watch cover and the top of the watch body.

[0013] The above technical solution increases the sealing between the watch cover and the watch body, and the elasticity of the rubber gasket makes the connection between the watch cover and the watch body more stable.

[0014] As a preferred embodiment of the above technical solution, the positioning component includes a positioning pin and a connecting strip. A positioning groove is provided on the side of the watch body near the connecting plate. A through hole is provided on the surface of the connecting plate at the position corresponding to the positioning groove. The positioning pin passes through the through hole and is inserted into the positioning groove.

[0015] The above technical solution allows the connecting plate to be locked, making it less likely that accidental contact with the connecting plate will affect the stability of the watch cover installation.

[0016] As a preferred embodiment of the above technical solution, one end of the connecting strap is connected to the side of the watch body, and the end of the connecting strap away from the watch body is installed and connected to the outer end of the positioning pin.

[0017] The above technical solution allows the positioning pin to be connected to the watch body via a connecting strap, thus preventing the positioning pin from being lost when it is pulled out.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention, by incorporating a disassembly and assembly component, replaces the threaded installation method commonly used in existing technologies for watch covers, resulting in a more secure installation that is less prone to stripping. It also simplifies operation. Furthermore, the addition of a rubber gasket enhances the seal between the watch cover and the watch body, reducing the likelihood of compromised testing accuracy. Additionally, the positioning component prevents accidental contact with the connecting plate, thus minimizing disruption to the watch cover's stability and significantly increasing the device's practicality. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a cylinder pressure gauge for cylinder pressure testing;

[0021] Figure 2 This is a schematic cross-sectional view of a cylinder pressure gauge for cylinder pressure testing.

[0022] Figure 3 for Figure 2 Enlarged diagram of A in the middle;

[0023] Figure 4 This is a schematic diagram showing the disassembled structure of a cylinder pressure gauge for cylinder pressure testing.

[0024] Figure 5 This is a schematic diagram of the cover structure of a cylinder pressure gauge for cylinder pressure testing, viewed from below.

[0025] In the diagram: 1. Watch body; 11. Slot; 12. Positioning groove; 2. Watch cover; 21. Insert rod; 22. Limiting groove; 23. Rubber pad; 3. Assembly / disassembly assembly; 31. Slide groove; 32. Spring; 33. Limiting rod; 34. Toggle lever; 35. Guide opening; 36. Connecting plate; 37. Protrusion; 38. Through hole; 4. Positioning assembly; 41. Positioning pin; 42. Connecting strap. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figures 1-5As shown, this utility model provides a technical solution: a cylinder pressure gauge for cylinder pressure testing, including a gauge body 1, a gauge cover 2 fitted onto the top of the gauge body 1, and a rubber gasket 23 installed at the contact point between the inner wall of the gauge cover 2 and the top of the gauge body 1, which increases the sealing between the gauge cover 2 and the gauge body 1. Simultaneously, the elasticity of the rubber gasket 23 makes the engagement between the gauge cover 2 and the gauge body 1 more stable. Slots 11 are provided on both sides of the top of the gauge body 1, and slots 11 are provided on both sides of the inner wall of the gauge cover 2. Each side is equipped with a plug rod 21, and each set of plug rods 21 is inserted into a slot 11. The two sides of the watch body 1 are centrally symmetrically equipped with disassembly and assembly components 3 for limiting and fixing the plug rods 21 within the slot 11. Each disassembly and assembly component 3 includes a slide groove 31, and each slide groove 31 is formed on the inner wall of the slot 11. A spring 32 is installed on the inner side of each slide groove 31. A limit rod 33 is slidably installed at the opening of each slide groove 31, and the inner end of the limit rod 33 is connected to the spring 32. Each insertion rod 21 has a limiting groove 22 at one end near the limiting rod 33. Each set of limiting rods 33 is inserted into the limiting groove 22. This structure allows the watch cover 2 to be fitted onto the top of the watch body 1, while the watch cover 2 drives the two sets of insertion rods 21 to align with the slot 11 and insert them. At this time, the inclined end of the insertion rod 21 will first touch the limiting rod 33. If it continues to be inserted, it can push and squeeze the limiting rod 33, pushing the limiting rod 33 into the slide groove 31 to compress the spring 32, until the insertion rod 21 is completely inserted into the slot 11. This causes the insertion rod 21 to drive the limiting groove 22 to correspond with the limiting rod 33. In this way, the limiting rod 33 can be pushed into the limiting groove 22 by the spring force of the spring 32. This can limit and fix the insertion rod 21, completing the installation of the watch cover 2. This can replace most of the existing technologies that use threaded installation, making the watch cover 2 installed more securely. Moreover, the operation is simple and does not easily affect the accuracy of the device test, greatly increasing the practicality of the device.

[0028] As one implementation method in this embodiment, such as Figure 3 and Figure 4As shown, each set of limiting rods 33 is connected to a lever 34 on its surface. Each set of slide grooves 31 has a guide opening 35 through one side of its inner wall. Each set of levers 34 is slidably installed in the guide opening 35. This structure allows the levers 34 to slide within the guide opening 35, and the levers 34 drive the limiting rods 33 to slide until the limiting rods 33 move out of the limiting groove 22 and move into the slide groove 31 to compress the spring 32. This allows the watch cover 2 to be pulled upwards and disassembled and opened. The operation is simple and convenient. A connecting plate 36 is installed at the end of each set of levers 34 away from the limiting rods 33. The positioning component 4 is located on the side of the watch body 1 near the connecting plate 36. Pushing the connecting plate 36 causes it to slide along the side of the watch body 1. This allows the connecting plate 36 to simultaneously drive the two sets of levers 34 to slide within the guide opening 35, making the operation more convenient. The surface of the connecting plate 36 is equidistantly connected with protrusions 37, which increases the friction between the connecting plate 36 and the surface.

[0029] It should be noted that both sets of limiting rods 33 and connecting plates 36 are arc-shaped, and the two sets of limiting rods 33 are centrally symmetrically arranged. In this way, the two sets of limiting rods 33 and connecting plates 36 can rotate synchronously around the center point of the dial body 1, which makes operation easier.

[0030] As one implementation method in this embodiment, such as Figure 2 and Figure 4 As shown, a positioning component 4 for locking the disassembly assembly 3 is provided on the side of the watch body 1. The positioning component 4 includes a positioning pin 41 and a connecting strap 42. A positioning groove 12 is provided on the side of the watch body 1 near the connecting plate 36. A through hole 38 is provided on the surface of the connecting plate 36 at the position corresponding to the positioning groove 12. The positioning pin 41 passes through the through hole 38 and is inserted into the positioning groove 12. This structure allows the connecting plate 36 to be locked by aligning the positioning pin 41 with the through hole 38 and passing it through until it is inserted into the positioning groove 12. This makes it less likely that the connection plate 36 will be accidentally touched, thus affecting the stability of the watch cover 2 installation. One end of the connecting strap 42 is connected to the side of the watch body 1, and the end of the connecting strap 42 away from the watch body 1 is connected to the outer end of the positioning pin 41. This allows the positioning pin 41 to be connected to the watch body 1 through the connecting strap 42. This makes it less likely that the positioning pin 41 will be lost when it is pulled out.

[0031] Working principle: To open the watch cover 2, simply pull the positioning pin 41 out of the positioning groove 12 and the through hole 38, and then push the connecting plate 36 so that the connecting plate 36 slides along the side of the watch body 1. In this way, the connecting plate 36 can simultaneously drive the two sets of levers 34 to slide in the guide opening 35, which makes the operation more convenient. Each set of levers 34 drives the limiting rod 33 to slide until the limiting rod 33 moves out of the limiting groove 22 and moves into the slide groove 31 to compress the spring 32. In this way, the watch cover 2 can be pulled upward, so that the watch cover 2 drives the insert 21 to be pulled out of the slot 11, thus completing the disassembly and opening of the watch cover 2. The operation is simple and convenient.

[0032] To install the watch cover 2, simply slip the watch cover 2 onto the top of the watch body 1, simultaneously aligning the two sets of insert rods 21 with the slots 11 and inserting them. The inclined ends of the insert rods 21 will first contact the limiting rod 33. Continuing insertion will push and compress the limiting rod 33, pushing it into the groove 31 to compress the spring 32, until the insert rod 21 is fully inserted into the slot 11. This causes the limiting groove 22 to align with the limiting rod 33, allowing the limiting rod 33 to be retracted by the spring force of the spring 32. The rod 21 is pushed into the limiting groove 22, which limits and fixes the rod 21, thus completing the installation of the cover 2. This can replace most of the existing technologies that use threaded installation, making the cover 2 more securely installed and simple to operate, greatly increasing the practicality of the device. Finally, the positioning pin 41 is aligned with the through hole 38 and passed through until it is inserted into the positioning groove 12, which locks the connecting plate 36, making it less likely to be accidentally touched and affect the stability of the cover 2 installation.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A cylinder pressure gauge for cylinder pressure testing, comprising a gauge body (1), a gauge cover (2) is sleeved on the top end of the gauge body (1), characterized in that: The top end of the table body (1) is provided with a slot (11) on both sides, the inner wall of the table cover (2) is provided with a plug rod (21) on both sides, each group of plug rods (21) is inserted into the slot (11), the both sides of the table body (1) are provided with a disassembly assembly (3) for limiting and fixing the plug rod (21) in the slot (11) in a center-symmetrical manner, and the side end of the table body (1) is provided with a positioning assembly (4) for locking the disassembly assembly (3).

2. A cylinder pressure gauge for testing a cylinder pressure according to claim 1, characterized in that: Each group of disassembly assemblies (3) comprises a sliding groove (31), each group of sliding grooves (31) is provided on the inner wall of the slot (11), the inner side of each group of sliding grooves (31) is provided with a spring (32), the opening of each group of sliding grooves (31) is provided with a limiting rod (33) which is connected with the spring (32), and the end of each group of plug rods (21) close to the limiting rod (33) is provided with a limiting slot (22), and each group of limiting rods (33) is inserted into the limiting slot (22).

3. A cylinder pressure gauge for testing a cylinder pressure according to claim 2, characterized in that: The surface of each group of limiting rods (33) is connected with a push rod (34), the inner wall of each group of sliding grooves (31) is provided with a guide opening (35) on one side, and each group of push rods (34) is slidingly installed in the guide opening (35).

4. A cylinder pressure gauge for testing a cylinder pressure according to claim 3, characterized in that: The end of the two groups of push rods (34) away from the limiting rod (33) is provided with a connecting plate (36), the positioning assembly (4) is arranged on the side of the table body (1) close to the connecting plate (36), and the surface of the connecting plate (36) is connected with a protruding block (37) at equal intervals.

5. The cylinder pressure gauge for testing cylinder pressure according to claim 1, characterized in that: The inner wall of the table cover (2) and the top end of the table body (1) are provided with a rubber pad (23).

6. A cylinder pressure gauge for testing a cylinder pressure according to claim 1, characterized in that: The positioning assembly (4) comprises a positioning pin (41) and a connecting belt (42), the side of the table body (1) close to the connecting plate (36) is provided with a positioning slot (12), the surface of the connecting plate (36) is provided with a through hole (38) corresponding to the positioning slot (12), and the positioning pin (41) passes through the through hole (38) and is inserted into the positioning slot (12).

7. A cylinder pressure gauge for testing a cylinder pressure according to claim 6, characterized in that: One end of the connecting belt (42) is connected to the side end of the table body (1), and the end of the connecting belt (42) away from the table body (1) is connected with the outer end of the positioning pin (41).

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