Convenient water pressing tool for EGR (Exhaust Gas Recirculation) transition joint

Abstract

The utility model provides an EGR (Exhaust Gas Recirculation) transition joint convenient water pressing tool which comprises a tool plate comprising a transverse plate and a vertical plate, and an EGR transition joint top positioning and plugging module is arranged on one side, far away from the vertical plate, of the top end of the transverse plate in a threaded fit manner; eGR transition joint bottom positioning modules are connected to the left side and the right side of the center of the side, close to the EGR transition joint top positioning plugging module, of the vertical plate through bolts; the gas injection hole is formed in the middle of the vertical plate and located between the second pressing plates in the EGR transition connector bottom positioning module. The bottom of the ventilation pin is clamped in the air injection hole in an interference fit mode. The EGR transition joint bottom side hole plugging module is arranged at the top of one side, close to the transverse plate, of the vertical plate through bolt connection, and a to-be-tested EGR transition joint is plugged and limited through the EGR transition joint top positioning plugging module, the EGR transition joint bottom positioning module and the EGR transition joint bottom side hole plugging module; and the internal threads of the screw holes cannot be damaged while the peripheral holes of the EGR transition joint are quickly plugged.

Description

Technical Field

[0001] The utility model relates to the field of detection, especially to the field of pressure water detection technology, and specifically provides a convenient pressure water tooling for an EGR adapter joint. Background Art

[0002] The EGR adapter joint is formed by sand casting. After forming, it is necessary to detect the internal sealing performance of the EGR adapter joint. That is, an air vent pin needs to be inserted into one of the through holes of the EGR adapter joint, and then the remaining through holes or screw holes around the EGR adapter joint are blocked. While injecting gas into the internal cavity, the EGR adapter joint is immersed in a water tank, and it is observed whether there are bubbles to judge whether there are problems such as looseness and sand holes in the EGR adapter joint. The conventional method for blocking the screw holes around the EGR adapter joint is to install bolts in the screw holes. However, this method is time-consuming, and the screw thread is easily damaged during the disassembly and assembly of the bolts. It is necessary to design a tooling fixture to quickly block the holes around the EGR adapter joint without damaging the internal thread of the screw hole. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the utility model is to provide a convenient pressure water tooling for an EGR adapter joint to solve the difficulties of the prior art.

[0004] To achieve the above purpose and other related purposes, the utility model provides a convenient pressure water tooling for an EGR adapter joint, including:

[0005] A tooling plate 1, the tooling plate 1 is in an L shape, and the tooling plate 1 includes a horizontal plate 11 and a vertical plate 12. One side of the top of the horizontal plate 11 is provided with a vertical plate 12 by welding, and the horizontal plate 11 and the vertical plate 12 are perpendicular to each other;

[0006] An EGR adapter joint top positioning and blocking module 2, the EGR adapter joint top positioning and blocking module 2 is arranged on the top of the horizontal plate 11 on the side far from the vertical plate 12 through threaded cooperation;

[0007] An EGR adapter joint bottom positioning module 3, the EGR adapter joint bottom positioning module 3 is arranged on the left and right sides of the center of the side of the vertical plate 12 close to the EGR adapter joint top positioning and blocking module 2 through bolt connection;

[0008] An air injection hole 4, the air injection hole 4 is opened in the middle of the vertical plate 12 between the second pressing plates 32 at the 2 position in the EGR adapter joint bottom positioning module 3;

[0009] An air vent pin 41, the air vent pin 41 is arranged at the center of the side of the vertical plate 12 far from the EGR adapter joint top positioning and blocking module 2, and the bottom of the air vent pin 41 is press-fitted and clamped in the air injection hole 4;

[0010] The bottom side hole plugging module 5 of the EGR adapter is provided at the top of the vertical plate 12 near the horizontal plate 11 by bolt connection.

[0011] According to the preferred solution, the top positioning plugging module 2 of the EGR adapter includes:

[0012] A first double-headed screw rod 21, the bottom of the first double-headed screw rod 21 is arranged on the side of the top end of the horizontal plate 11 away from the vertical plate 12 by thread fit, and a first pressing plate 22 is arranged on the top of the first double-headed screw rod 21 by thread fit;

[0013] A first kidney-shaped hole 23 is opened on the side of the first pressing plate 22 close to the vertical plate 12;

[0014] A first screw rod 24 is arranged in the first kidney-shaped hole 23, and the bottom of the first screw rod 24 is vertically downward and connected to the horizontal plate 11 by thread fit;

[0015] A first adjusting nut 25 is sleeved on the top of the first screw rod 24, and the top end of the first adjusting nut 25 contacts the first pressing plate 22;

[0016] A first plug 26 is arranged at the bottom end of the side of the first pressing plate 22 close to the vertical plate 12 by welding. A chamfer is arranged on the outer side of the bottom end of the first plug 26. The first plug 26 is divided into three sections: top, middle and bottom. The outer diameter of the top section of the first plug 26 is larger than that of the bottom section. The outer diameter of the bottom section of the first plug 26 is larger than that of the middle section. A first sealing ring 27 is sleeved on the outer side of the middle section of the first plug 26;

[0017] A support column 28 is arranged on the top end of the horizontal plate 11 by bolt connection, and the support column 28 is located directly below the first plug 26.

[0018] According to the preferred solution, by using a wrench or manually rotating the first adjusting nut 25, the first adjusting nut 25 drives the first pressing plate 22 to move downward along the first screw rod 24.

[0019] According to the preferred solution, the bottom positioning module 3 of the EGR adapter includes:

[0020] The second double-headed screw rod 31, there are a pair of the second double-headed screw rods 31, and the bottoms of the pair of second double-headed screw rods 31 are respectively inserted through the left and right sides of the center of the vertical plate 12 by thread fit. The heights of the pair of second double-headed screw rods 31 are not on the same straight line. The top of the second double-headed screw rod 31 passes through the vertical plate 12 and extends towards the first screw rod 24. The top of the second double-headed screw rod 31 is connected with a second pressing plate 32 by thread fit. One side of the second pressing plate 32 extends vertically towards the center of the vertical plate 12;

[0021] The second waist-shaped hole 33, the second waist-shaped hole 33 is opened in the center of the second pressing plate 32;

[0022] The second screw rod 34, the second screw rod 34 is inserted into the second waist-shaped hole 33, and the bottom of the second screw rod 34 is connected with the vertical plate 12 by thread fit;

[0023] The second adjusting nut 35, the second adjusting nut 35 is sleeved on the top of the second screw rod 34, and the bottom end of the second adjusting nut 35 contacts the second pressing plate 32.

[0024] According to the preferred solution, the EGR transition joint bottom side hole plugging module 5 includes:

[0025] The T-shaped mounting bracket 51, the T-shaped mounting bracket 51 is arranged on one side of the top end of the vertical plate 12 close to the first plug 26 by bolt connection. A pressing threaded hole 52 is opened in the center of the side of the T-shaped mounting bracket 51 close to the first plug 26;

[0026] The plastic handle T-shaped threaded wrench 53, the center of the plastic handle T-shaped threaded wrench 53 is clamped in the pressing threaded hole 52 by thread fit. The bottom of the plastic handle T-shaped threaded wrench 53 is sleeved with a second plug 54 by interference fit. The second plug 54 is divided into three sections: top, middle and bottom. The outer diameters of the three sections of the second plug 54 decrease in sequence from top to bottom. A second sealing ring 55 is sleeved between the bottom section and the middle section of the second plug 54.

[0027] The utility model adopts: a tooling plate, a top positioning and plugging module for the EGR adapter, a bottom positioning module for the EGR adapter, a vent pin, and a bottom side hole plugging module for the EGR adapter. For the EGR adapter to be tested, one side interface of the adapter abuts against the vertical plate and sleeves outside the injection hole, and the other side of the EGR adapter is placed on the support column and is plugged and limited by the top positioning and plugging module for the EGR adapter. The EGR adapter is pressed against the vertical plate on both the left and right sides of the joint position by the bottom positioning module for the EGR adapter, and the bottom side holes of the EGR adapter are closed by the bottom side hole plugging module for the EGR adapter. The air pump connected to the vent pin is opened to inject air into the EGR adapter, and the entire tooling is immersed in water to observe whether there are bubbles, so as to judge whether there are problems such as loose internal structure and sand holes in the material of the EGR adapter. While quickly plugging the holes around the EGR adapter, the internal threads of the screw holes will not be damaged.

[0028] In the following, the optimal embodiments of implementing the utility model will be described in more detail with reference to the accompanying drawings, so that the features and advantages of the utility model can be easily understood. Brief Description of the Drawings

[0029] Figure 1 Shown is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 Shown is a three-dimensional structural schematic diagram of another perspective of the utility model;

[0031] Figure 3 Shown is an enlarged three-dimensional structural schematic diagram of the first plug and the second plug in the utility model;

[0032] Figure 4 Shown is a schematic diagram of the utility model with the EGR adapter installed;

[0033] Figure 5 Shown is an enlarged three-dimensional structural schematic diagram of the EGR adapter to be tested in the utility model;

[0034] Label Description

[0035] 1. Tooling plate; 11. Horizontal plate; 12. Vertical plate;

[0036] 2. Top positioning and plugging module for the EGR adapter; 21. First double-headed screw rod; 22. First pressing plate; 23. First waist-shaped hole; 24. First screw rod; 25. First adjusting nut; 26. First plug; 27. First sealing ring; 28. Support column;

[0037] 3. Bottom positioning module for the EGR adapter; 31. Second double-headed screw rod; 32. Second pressing plate; 33. Second waist-shaped hole; 34. Second screw rod; 35. Second adjusting nut;

[0038] 4. Air injection hole; 41. Vent pin

[0039] 5. EGR transition joint bottom side hole plugging module; 51. T-shaped mounting bracket; 52. Compression threaded hole; 53. Plastic handle T-shaped threaded wrench; 54. Second plug; 55. Second sealing ring Detailed implementation manners

[0040] In order to make the objectives, technical solutions and advantages of the technical solutions of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings of the specific embodiments of the present utility model. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0041] Compared with the embodiments shown in the drawings, the feasible implementation solutions within the protection scope of the present utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0042] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present utility model belongs. The "first", "second" and similar terms used in the description and claims of the patent application of the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not necessarily indicate a quantity limitation. The terms such as "include" or "comprise" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms such as "connect" or "be connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0043] The utility model provides a convenient water pressure tooling for an EGR adapter, which is used in the water pressure detection process of the EGR adapter. In the utility model, the tooling plate 1, the top positioning and plugging module 2 of the EGR adapter, the bottom positioning module 3 of the EGR adapter, the vent pin 41 and the bottom side hole plugging module 5 of the EGR adapter are structurally particularly suitable for quickly closing the screw holes or through holes in the EGR adapter to inject gas for water pressure detection.

[0044] Generally, the convenient water pressure tooling for the EGR adapter proposed by the utility model mainly includes: the tooling plate 1, the top positioning and plugging module 2 of the EGR adapter, the bottom positioning module 3 of the EGR adapter, the vent pin 41 and the bottom side hole plugging module 5 of the EGR adapter. Among them, reference can be made to Figure 1 , which shows the layout relationship of the tooling plate 1, the top positioning and plugging module 2 of the EGR adapter, the bottom positioning module 3 of the EGR adapter, the vent pin 41 and the bottom side hole plugging module 5 of the EGR adapter.

[0045] The utility model provides a convenient water pressure tooling for an EGR adapter. When in use, as Figure 3 shown, the EGR adapter to be tested is placed with one side interface of the adapter against the vertical plate 12 and sleeved outside the injection hole 4, and the other side of the EGR adapter is placed on the support column 28. The position of the EGR adapter is adjusted so that the top screw hole of the EGR adapter is aligned with the first plug 26. The first adjusting nut 25 is turned with a wrench to make the first pressing plate 22 move downward to block the top screw hole of the EGR adapter with the first plug 26, and an interference fit is formed between the first sealing ring 27 and the orifice of the top screw hole of the EGR adapter. The second adjusting nut 35 is turned with a wrench to press the left and right sides of the EGR adapter tightly against the vertical plate 12 through the second pressing plate 32. The plastic handle T-shaped threaded wrench 53 is rotated to make the second plug 54 enter the bottom side hole of the EGR adapter, so that the middle section of the second plug 54 presses on the top end of the bottom side hole of the EGR adapter, and an interference fit is formed between the second sealing ring 55 and the orifice of the bottom side hole of the EGR adapter. The air pump connected to the vent pin 41 is opened to inject gas into the EGR adapter, and the whole tooling is immersed in water to observe whether there are bubbles, so as to judge whether there are problems such as loose internal structure and sand holes in the material of the EGR adapter.

[0046] The above-mentioned top positioning and plugging module 2 of the EGR adapter is arranged on one side of the top of the cross plate 11 away from the vertical plate 12 through threaded cooperation. The top positioning and plugging module 2 of the EGR adapter includes: a first double-headed screw rod 21, a first kidney-shaped hole 23, a first screw rod 24, a first adjusting nut 25, a first plug 26 and a support column 28. Among them, the bottom of the first double-headed screw rod 21 is arranged on one side of the top of the cross plate 11 away from the vertical plate 12 through threaded cooperation. The top of the first double-headed screw rod 21 is provided with a first pressing plate 22 through threaded cooperation. A first kidney-shaped hole 23 is opened on one side of the first pressing plate 22 close to the vertical plate 12. The first kidney-shaped hole 23 enables the first screw rod 24 to be adjustable. The first screw rod 24 is arranged in the first kidney-shaped hole 23. The bottom of the first screw rod 24 is vertically downward and connected to the cross plate 11 through threaded cooperation. A first adjusting nut 25 is sleeved on the top of the first screw rod 24. The top of the first adjusting nut 25 contacts the first pressing plate 22. The first plug 26 is arranged at the bottom end of one side of the first pressing plate 22 close to the vertical plate 12 through welding. A chamfer is arranged on the outer side of the bottom end of the first plug 26. The first plug 26 is divided into three sections: top, middle and bottom. The outer diameter of the top section of the first plug 26 is larger than that of the bottom section. The outer diameter of the bottom section of the first plug 26 is larger than that of the middle section. A first sealing ring 27 is sleeved on the outer side of the middle section of the first plug 26. The support column 28 is arranged on the top of the cross plate 11 through bolt connection. The support column 28 is located directly below the first plug 26. The support column 28 plays a supporting role for the overall EGR adapter.

[0047] The above-mentioned bottom positioning module 3 of the EGR adapter is arranged on the left and right sides of the center of one side of the vertical plate 12 close to the top positioning and plugging module 2 of the EGR adapter through bolt connection. The bottom positioning module 3 of the EGR adapter includes: a second double-headed screw rod 31, a second kidney-shaped hole 33, a second screw rod 34 and a second adjusting nut 35. Among them, a pair of second double-headed screw rods 31 are provided. The bottoms of the pair of second double-headed screw rods 31 are respectively arranged on the left and right sides of the center of the vertical plate 12 through threaded cooperation. The tops of the second double-headed screw rods 31 pass through the vertical plate 12 and extend towards the direction of the first screw rod 24. The tops of the second double-headed screw rods 31 are connected with a second pressing plate 32 through threaded cooperation. One side of the second pressing plate 32 extends vertically towards the center of the vertical plate 12. A second kidney-shaped hole 33 is opened in the center of the second pressing plate 32. The second screw rod 34 is arranged in the second kidney-shaped hole 33. The bottom of the second screw rod 34 is connected to the vertical plate 12 through threaded cooperation. A second adjusting nut 35 is sleeved on the top of the second screw rod 34. The bottom end of the second adjusting nut 35 contacts the second pressing plate 32, realizing the limit of the bottom connection side of the EGR adapter to fix it on the vertical plate 12.

[0048] The above-mentioned EGR transition joint bottom side hole plugging module 5 is arranged at the top of the vertical plate 12 close to the horizontal plate 11 through bolt connection. The EGR transition joint bottom side hole plugging module 5 includes: a T-shaped mounting bracket 51, a plastic handle T-shaped threaded wrench 53 and a second sealing ring 55. Among them, the T-shaped mounting bracket 51 is arranged at the top of the vertical plate 12 close to the first plug 26 through bolt connection. A pressing threaded hole 52 is opened in the middle of the side of the T-shaped mounting bracket 51 close to the first plug 26. The middle of the plastic handle T-shaped threaded wrench 53 is clamped in the pressing threaded hole 52 through thread fitting. A second plug 54 is sleeved on the bottom of the plastic handle T-shaped threaded wrench 53 through interference fit. The second plug 54 is divided into three sections: top, middle and bottom. The outer diameters of the top, middle and bottom sections of the second plug 54 decrease in sequence. A second sealing ring 55 is sleeved between the bottom section and the middle section of the second plug 54.

[0049] The above embodiments merely illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A convenient water-pressing tool for an EGR transition joint, characterized in that: include: A tooling plate (1), the tooling plate (1) is L-shaped, and comprises: a horizontal plate (11) and a vertical plate (12), the vertical plate (12) being arranged on one side of the top end of the horizontal plate (11) by welding, and the horizontal plate (11) and the vertical plate (12) are perpendicular to each other; An EGR transition joint top positioning and plugging module (2), wherein the EGR transition joint top positioning and plugging module (2) is arranged on a side of the top of the horizontal plate (11) away from the vertical plate (12) through threaded engagement; An EGR transition joint bottom positioning module (3), the EGR transition joint bottom positioning module (3) being arranged on the left and right sides of the center of a vertical plate (12) close to a side of the EGR transition joint top positioning blocking module (2) through bolt connection; An air injection hole (4), the air injection hole (4) being provided in the middle of the vertical plate (12) and between the second pressure plates (32) at the 2nd position in the positioning module (3) at the bottom of the EGR transition joint; A vent pin (41), the vent pin (41) being arranged in the middle of a side of the vertical plate (12) away from the top positioning and plugging module (2) of the EGR transition joint, and the bottom of the vent pin (41) being interference-fitted and clamped in the air injection hole (4); The EGR transition joint bottom side hole sealing module (5) is arranged on the top of the vertical plate (12) close to the horizontal plate (11) through bolt connection.

2. The convenient water-pressing tool for the EGR transition joint according to claim 1 is characterized in that: The EGR transition joint top positioning and plugging module (2) comprises: A No. 1 double-headed screw rod (21), wherein the bottom of the No. 1 double-headed screw rod (21) is arranged on a side of the top of the horizontal plate (11) away from the vertical plate (12) through threaded engagement, and a No. 1 pressing plate (22) is arranged on the top of the No. 1 double-headed screw rod (21) through threaded engagement; A first waist-shaped hole (23), wherein the first waist-shaped hole (23) is provided on a side of the first pressing plate (22) close to the vertical plate (12); A No. 1 screw rod (24), the No. 1 screw rod (24) is inserted into the No. 1 waist-shaped hole (23), and the bottom of the No. 1 screw rod (24) is vertically downward and connected to the horizontal plate (11) through threaded engagement; A No. 1 adjusting nut (25), wherein the No. 1 adjusting nut (25) is sleeved on the top of the No. 1 screw rod (24), and the top of the No. 1 adjusting nut (25) is in contact with the No. 1 pressing plate (22); A No. 1 plug (26), the No. 1 plug (26) is arranged at the bottom end of the No. 1 pressure plate (22) close to the vertical plate (12) by welding, the bottom end of the No. 1 plug (26) is provided with a chamfer on the outside, the No. 1 plug (26) is divided into three sections: top, middle and bottom, the top section of the No. 1 plug (26) has an outer diameter greater than the outer diameter of the bottom section, the bottom section of the No. 1 plug (26) has an outer diameter greater than the outer diameter of the middle section, and the middle section of the No. 1 plug (26) is sleeved with a No. 1 sealing ring (27); A support column (28), wherein the support column (28) is arranged on the top of the horizontal plate (11) by bolt connection, and the support column (28) is located directly below the No. 1 plug (26).

3. The convenient water-pressing tool for the EGR transition joint according to claim 2 is characterized in that: The EGR transition joint bottom side hole plugging module (5) comprises: A T-shaped mounting frame (51), the T-shaped mounting frame (51) being arranged on a side of the top of the vertical plate (12) close to the No. 1 plug (26) by bolt connection, and a tightening threaded hole (52) is provided in the middle of the side of the T-shaped mounting frame (51) close to the No. 1 plug (26); A plastic-handled T-shaped threaded spanner (53) is provided, wherein the center of the plastic-handled T-shaped threaded spanner (53) is clamped in a tightening threaded hole (52) through threaded engagement, a No. 2 plug (54) is sleeved at the bottom of the plastic-handled T-shaped threaded spanner (53) through interference engagement, the No. 2 plug (54) is divided into three sections, namely, a top, a middle and a bottom, wherein the outer diameters of the top, a middle and a bottom sections of the No. 2 plug (54) decrease in sequence, and a No. 2 sealing ring (55) is sleeved between the bottom section and the middle section of the No. 2 plug (54).

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