Press fitting structure for detecting air tightness of pipe orifice of thermolator seat of diesel engine

Abstract

The utility model discloses a press-fitting structure for detecting air tightness of a diesel engine thermolator seat pipe orifice, which comprises a sleeve main body, a first sealing washer and a second sealing washer, the first sealing washer is arranged on the outer surface of the bottom of the sleeve main body and used for contacting with the inner wall of the pipe orifice, and the second sealing washer is arranged on the outer surface of the top of the sleeve main body and used for contacting with the inner wall of the pipe orifice. The inner wall of the pipe opening is contacted; by arranging the sleeve body, the first sealing washer, the second sealing washer and other structures, the press-fitting structure is placed in a thermolator base pipe opening, the first sealing washer or the second sealing washer arranged outside the sleeve body can be connected to the inner wall of the pipe opening in a clamped mode, and when hydraulic equipment pushes a connected sealing pressing block to be pressed downwards, the sealing pressing block is pressed downwards. If the inner wall of the pipe orifice of the thermolator seat has casting defects such as shrinkage cavities, the problem of air tightness leakage can be caused. Through the press-fitting structure, the air tightness of the product can be better checked, and problems of the product caused by the air tightness problem of the pipe orifice are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe orifice detection, and more specifically, the utility model relates to a pressing structure for detecting the air tightness of the pipe orifice of a diesel engine thermostat seat. Background Technique

[0002] A thermostat, also known as a temperature control valve, is a valve that controls the flow path of the coolant. As an automatic temperature control device, it usually contains a temperature sensing component, which opens and closes the flow of air, gas or liquid by expanding or contracting. Its function is to automatically adjust the amount of water entering the radiator according to the high and low temperature of the diesel engine cooling water, change the circulation range of the water, so as to adjust the heat dissipation capacity of the cooling system and ensure that the diesel engine works within a suitable temperature range;

[0003] Since the air tightness of the connecting pipe orifice of the diesel engine thermostat seat has a great influence on its normal operation, it is necessary to detect the air tightness of the pipe orifice. The commonly used detection method is the water immersion method. By completely immersing the component to be tested in water and then applying internal pressure, observing whether bubbles are generated on the water surface to judge whether the pipe orifice leaks air, which can quickly and effectively evaluate the sealing performance of the pipe orifice.

[0004] However, in the actual use process, there are still some disadvantages. For example, some existing pressing structures such as plugs for the connecting pipe of the thermostat seat are usually columnar blocks that closely fit the inner wall of the connecting pipe of the thermostat seat. However, in the actual water immersion method air tightness detection, this structure may not be able to effectively detect problems such as shrinkage holes or sand holes that may exist in the pipe orifice. Due to the function of the plug block that fits the inner wall of the pipe orifice, these problems are covered up, affecting the accurate judgment of the air tightness of the connecting pipe of the thermostat seat, and thus may affect the safe and reliable use of the equipment. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pressing structure for detecting the air tightness of the pipe orifice of a diesel engine thermostat seat, so as to solve the problem that in the prior art, some pressing structures such as plugs that fit the inner wall of the connecting pipe of the thermostat seat are likely to cover up problems such as shrinkage holes or sand holes, affecting the accurate judgment of the air tightness of the connecting pipe of the thermostat seat.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: A pressing structure for detecting the air tightness of the pipe orifice of a diesel engine thermostat seat, comprising

[0007] A sleeve body;

[0008] A first sealing washer, which is arranged on the outer surface of the bottom of the sleeve body and is used to contact the inner wall of the pipe orifice;

[0009] The second sealing washer is arranged on the outer surface of the top of the sleeve body and is used to contact the inner wall of the pipe orifice.

[0010] Among them, it further includes a first lower fastening ring, a second lower fastening ring, a first upper fastening ring, and a second upper fastening ring. The surface of the middle part of the first lower fastening ring is fixedly installed on the outer surface of the bottom of the sleeve body. The second lower fastening ring is arranged parallel to the first lower fastening ring and below it, and the middle part of the second lower fastening ring is fixedly installed on the outer surface of the sleeve body. The middle part of the first upper fastening ring is fixedly installed on the outer surface of the top of the sleeve body. The second upper fastening ring is arranged parallel to the first upper fastening ring and below it, and the middle part of the second upper fastening ring is fixedly installed on the outer surface of the sleeve body.

[0011] Among them, the first sealing washer is snap-fitted and installed in the middle of the first lower fastening ring and the second lower fastening ring, and the second sealing washer is snap-fitted and installed in the middle of the first upper fastening ring and the second upper fastening ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] In the above solution, by setting structures such as the sleeve body, the first sealing washer, and the second sealing washer, the press-fitting structure is placed into the pipe orifice of the thermostat seat. One end of the first sealing washer arranged at the bottom of the sleeve body or the second sealing washer arranged at the top of the sleeve body will be snap-fitted on the inner wall of the pipe orifice. The externally connected sealing press block is pressed on the top of the sleeve body. When the hydraulic equipment pushes the connected sealing press block to press downwards, it will push the sealing washer of the press-fitting structure to touch the inner wall of the pipe orifice. During the above process, if there are casting defects such as shrinkage holes on the inner wall of the thermostat seat pipe orifice, it will cause the first sealing washer or the second sealing washer arranged on the surface of the press-fitting structure not to fit with the pipe wall of the thermostat seat pipe orifice. Furthermore, during the water immersion detection process, there will be an airtightness leakage problem. Through this press-fitting structure, the airtightness of the product can be better checked, reducing problems of the product caused by the airtightness problem of the pipe orifice. In addition, not only can the airtightness of the product be detected, but also the airtightness of the inner wall of the pipe orifice can be detected. Since this press-fitting structure uses a sealing washer to contact the inner wall of the pipe orifice, the inner cavity can be well protected from being bruised. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the front view structural schematic diagram of the present utility model.

[0016] [Reference Numerals]

[0017] 1. Sleeve body; 20. First lower fastening ring; 21. Second lower fastening ring; 22. First upper fastening ring; 23. Second upper fastening ring; 3. First sealing washer; 4. Second sealing washer. Detailed implementation manner

[0018] To make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] As shown in the attached Figure 1 to the attached Figure 2 An embodiment of the present utility model provides a pressing structure for detecting the airtightness of the nozzle of a diesel engine thermostat seat pipe, including

[0020] Sleeve body 1;

[0021] First sealing washer 3, the first sealing washer 3 is arranged on the outer surface of the bottom of the sleeve body 1 for contacting the inner wall of the nozzle;

[0022] Second sealing washer 4, the second sealing washer 4 is arranged on the outer surface of the top of the sleeve body 1 for contacting the inner wall of the nozzle.

[0023] Among them, it further includes a first lower fastening ring 20, a second lower fastening ring 21, a first upper fastening ring 22, and a second upper fastening ring 23. The surface of the middle part of the first lower fastening ring 20 is fixedly installed on the outer surface of the bottom of the sleeve body 1. The second lower fastening ring 21 is arranged in parallel below the first lower fastening ring 20, and the middle part of the second lower fastening ring 21 is fixedly installed on the outer surface of the sleeve body 1. The middle part of the first upper fastening ring 22 is fixedly installed on the outer surface of the top of the sleeve body 1. The second upper fastening ring 23 is arranged in parallel below the first upper fastening ring 22, and the middle part of the second upper fastening ring 23 is fixedly installed on the outer surface of the sleeve body 1.

[0024] Among them, the first sealing washer 3 is snap-fitted and installed in the middle of the first lower fastening ring 20 and the second lower fastening ring 21, and the second sealing washer 4 is snap-fitted and installed in the middle of the first upper fastening ring 22 and the second upper fastening ring 23.

[0025] The working process of the present utility model is as follows:

[0026] Place the press-fitting structure into the thermostat seat pipe orifice. One end of the first sealing washer 3 provided at the bottom of the sleeve body 1 or the second sealing washer 4 provided at the top of the sleeve body 1 will be clamped to the inner wall of the pipe orifice. The externally connected sealing press block is pressed on the top of the sleeve body 1. When the hydraulic equipment pushes the connected sealing press block downward, it will push the sealing washer of the press-fitting structure to touch the inner wall of the pipe orifice. During the above process, if there are casting defects such as shrinkage holes on the inner wall of the thermostat seat pipe orifice, it will cause the first sealing washer 3 or the second sealing washer 4 provided on the surface of the press-fitting structure not to fit the pipe wall of the thermostat seat pipe orifice. Furthermore, during the water immersion detection process, there will be an airtightness leakage problem. Through this press-fitting structure, the airtightness of the product can be better checked, reducing problems caused by the airtightness problem of the pipe orifice. In addition, not only can the airtightness of the product be detected, but also the airtightness of the inner wall of the pipe orifice can be detected. Since the press-fitting structure uses a sealing washer to contact the inner wall of the pipe orifice, the inner cavity can be well protected from being bruised.

[0027] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0028] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A press-fit structure for detecting the air tightness of a diesel engine thermostat seat pipe port, characterized in that: It comprises a sleeve body (1); A first sealing gasket (3), the first sealing gasket (3) being arranged on the outer surface of the bottom of the sleeve body (1) and being used for contacting the inner wall of the pipe opening; A No. 2 sealing gasket (4), which is arranged on the outer surface of the top of the sleeve body (1) and is used to contact the inner wall of the pipe mouth.

2. A press-fit structure for detecting the air tightness of a diesel engine thermostat seat pipe port according to claim 1, characterized in that: It also includes a No. 1 lower fastening ring (20), a No. 2 lower fastening ring (21), a No. 1 upper fastening ring (22), and a No. 2 upper fastening ring (23), wherein the surface of the middle portion of the No. 1 lower fastening ring (20) is fixedly mounted to the outer surface of the bottom of the sleeve body (1), the No. 2 lower fastening ring (21) is arranged in parallel below the No. 1 lower fastening ring (20), and the middle portion of the No. 2 lower fastening ring (21) is fixedly mounted to the outer surface of the sleeve body (1), the middle portion of the No. 1 upper fastening ring (22) is fixedly mounted to the outer surface of the top of the sleeve body (1), and the No. 2 upper fastening ring (23) is arranged in parallel below the No. 1 upper fastening ring (22), and the middle portion of the No. 2 upper fastening ring (23) is fixedly mounted to the outer surface of the sleeve body (1).

3. A press-fit structure for detecting the air tightness of a diesel engine thermostat seat pipe port according to claim 1, characterized in that: The No. 1 sealing gasket (3) is mounted in the middle of the No. 1 lower fastening ring (20) and the No. 2 lower fastening ring (21), and the No. 2 sealing gasket (4) is mounted in the middle of the No. 1 upper fastening ring (22) and the No. 2 upper fastening ring (23).

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