Error-proof welding tool for installation of EGR water feeding pipe

Abstract

The utility model provides an EGR water supply pipe installation mistake-proofing welding tool. The welding tool comprises a manual-automatic integrated position adjusting module which is connected to the top of an installation frame through a bolt; the water pipe positioning sensing module is arranged in the center of the side, away from the mounting frame, of the manual-automatic integrated position adjusting module through bolt connection; the water pipe locking press-fitting module is arranged at the top end of the side, away from the mounting frame, of the manual-automatic integrated position adjusting module through bolt connection, the bottom of the water pipe locking press-fitting module makes contact with the water pipe positioning induction module, a pressing rod downwards drives a water pipe to move downwards, and the inserting side of the bottom of the water pipe is pressed into an opponent piece connecting hole of EGR. If the water pipe is installed reversely and the length of the end, where the water pipe is installed mistakenly, entering the connecting hole of the opponent piece of the EGR is small, the bottom end of the detection pressure head does not make contact with the induction head, and the inductor gives an alarm to remind an operator that the water pipe is installed reversely.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to the field of welding technology for connecting water pipes and EGRs, specifically a welding fixture for preventing errors when installing water pipes on an EGR. Background Technology

[0002] There is a need to insert a water pipe into the matching hole of an EGR. Because the two ends of the water pipe look similar, the outer diameter of the bottom of the correctly installed end of the water pipe is the same as that of the matching hole, and the top of the correctly installed end of the water pipe has a stop ring with an outer diameter larger than that of the insertion side. The bottom of the incorrectly installed end of the water pipe is tapered, and the minimum outer diameter of the incorrectly installed end of the water pipe is less than or equal to the diameter of the matching hole, so that the incorrectly installed end of the water pipe can also be inserted into the matching hole. In production, it is easy to install the water pipe and the matching hole backwards, resulting in unnecessary scrap. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an EGR water supply pipe installation anti-misalignment welding fixture to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, this utility model provides an anti-misalignment welding fixture for EGR water supply pipe installation, comprising:

[0005] Mounting bracket 1;

[0006] The manual / automatic integrated positioning module 2 is mounted on the top of the mounting frame 1 by bolt connection;

[0007] Water pipe positioning sensor module 3, which is bolted to the center of the side of the manual / automatic adjustment module 2 away from the mounting bracket 1;

[0008] The water pipe locking and pressing module 4 is bolted to the top of the manual / automatic positioning module 2 on the side away from the mounting bracket 1, and the bottom of the water pipe locking and pressing module 4 is in contact with the water pipe positioning sensing module 3.

[0009] According to the preferred embodiment, the manual / automatic integrated positioning module 2 includes:

[0010] Cylinder 21 is bolted to one side of the top of mounting bracket 1. Cylinder rod 22 is threaded through one side of cylinder 21. Push block 23 is provided on the top of cylinder rod 22.

[0011] Connecting seat 24, which is bolted to the side of push block 23 away from cylinder 21;

[0012] Adjustment block 25 is bolted to the side of mounting bracket 1 away from cylinder 21. Adjustment block 25 is located below cylinder 21. A square groove 26 is formed on the top of adjustment block 25. A rotating shaft 27 is inserted through the center of square groove 26.

[0013] T-shaped block 28, the T-shaped block 28 is bolted to the bottom of the connecting seat 24 near the adjusting block 25, and a driving column 29 is bolted to the center of the side of the T-shaped block 28 away from the connecting seat 24;

[0014] The handle 210 has its bottom sleeved on the first rotating shaft 27, and a first waist hole 211 is opened in the middle section of the handle 210. The first waist hole 211 is sleeved on the drive column 29.

[0015] According to the preferred embodiment, cylinder 21 drives cylinder rod 22 to move adjusting block 25 back and forth, and handle 210 pulls up and down to move adjusting block 25 to move cylinder rod 22 back and forth.

[0016] According to the preferred embodiment, the water pipe positioning sensing module 3 includes:

[0017] The detection seat 31 is bolted to the side of the connecting seat 24 away from the first cylinder 21, and the detection seat 31 is T-shaped.

[0018] Water pipe placement groove 32, the water pipe placement groove 32 is opened on the side of the detection seat 31 away from the connecting seat 24;

[0019] Sensor 33 is bolted to the left or right side of the detection seat 31 near the first cylinder 21, and the top of the sensor 33 is a sensing head 34.

[0020] A square groove 35 is provided, which is opened through the center of the side of the detection seat 31 away from the water pipe placement groove 32;

[0021] Cover plate 36, which is bolted to the bottom of the detection seat 31 at the bottom end of the square groove 35;

[0022] The detection head 37 is L-shaped. The bottom of the detection head 37 is stuck in the square groove 35. The left and right sides of the detection head 37 are located directly above the sensor 33 and the water pipe placement groove 32. A pair of semi-circular protrusions 38 are provided in the center of the top of the detection head 37. A second rotating shaft 39 passes through the pair of semi-circular protrusions 38.

[0023] The short connecting rod 310 is fitted at the bottom between a pair of semi-circular bosses 38, and the bottom of the short connecting rod 310 is sleeved on the second rotating shaft 39. The top of the short connecting rod 310 is provided with a second waist hole 311.

[0024] A shoulder screw 312 is provided, with its bottom positioned directly below the cover plate 36, and its top passing through the cover plate 36 and connected to the detection pressure head 37 via a threaded connection.

[0025] Spring 313 is sleeved on shoulder screw 312. The top of spring 313 abuts against cover plate 36, and the bottom of spring 313 abuts against bolt head in shoulder screw 312.

[0026] According to the preferred embodiment, the water pipe locking and pressing module 4 includes:

[0027] Cylinder seat 41, which is bolted to the top of one side of the connecting seat 24, is located directly above the detection seat 31 and is in the shape of an inverted Y.

[0028] Cylinder 42 is bolted to the top center of cylinder seat 41, and cylinder rod 43 is threaded through one side of cylinder 42.

[0029] The top of the pressure rod arm 44 is sleeved on the side of the second cylinder rod 43 away from the cylinder seat 41, and the bottom of the pressure rod arm 44 extends toward the water pipe placement groove 32.

[0030] The third rotating shaft 45 is mounted on the top of the second cylinder rod 43, and the third rotating shaft 45 extends straight through the left and right sides of the pressure rod arm 44.

[0031] The fourth rotating shaft 46 is installed on the left and right sides of the pressure arm 44 and is located directly below the third rotating shaft 45.

[0032] A pressure rod 47 is threaded through the bottom of the pressure rod arm 44, and the bottom of the pressure rod 47 extends into the water pipe placement groove 32.

[0033] The hinge seat 48 is bolted to one side of the connecting seat 24 and located at the center of the bottom of the cylinder seat 41. The hinge seat 48 is located between the cylinder seat 41 and the detection seat 31.

[0034] Fifth rotating shaft 49, which is locked on the top of hinge seat 48 near the side of cylinder rod 43;

[0035] Long connecting rod 410, the bottom of which is sleeved on the left and right sides of the fifth rotating shaft 49, and the top of which is sleeved on the left and right sides of the fourth rotating shaft 46;

[0036] The sixth rotating shaft 411 is fitted in the center of the second waist hole 311. The sixth rotating shaft 411 extends straight through the left and right sides of the long connecting rod 410. The sixth rotating shaft 411 is located between the fifth rotating shaft 49 and the fourth rotating shaft 46.

[0037] This utility model employs an installation frame, a manual / automatic integrated positioning module, a water pipe positioning sensor module, and a water pipe locking and pressing module. The water pipe is placed in the water pipe placement slot, with the top of the pipe abutting the detection pressure head. The second cylinder rod in the second cylinder is pushed forward, causing the pressure rod arm to swing downwards along the third rotating shaft as its rotation center. This allows the pressure rod to enter the water pipe placement slot and limit the water pipe within it. Simultaneously, the pressure rod arm swings downwards via the fourth rotating shaft with the fifth rotating shaft as its rotation center. This downward movement of the pressure rod pulls the water pipe downwards, pressing the bottom of the water pipe into the EGR's matching fitting connection hole until the bottom stop ring of the water pipe contacts the EGR's matching fitting. At this point, the bottom of the detection pressure head will contact the sensor head in the sensor. If the water pipe is installed backwards, the incorrectly installed end will have a shorter length entering the EGR's matching fitting connection hole. In this case, the bottom of the detection pressure head will not contact the sensor head, and the sensor will alarm, alerting the operator that the water pipe is installed backwards.

[0038] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0039] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0040] Figure 2 The diagram shown is an enlarged three-dimensional structural diagram of the water pipe in this utility model;

[0041] Figure 3 The diagram shown is an enlarged three-dimensional structural schematic of the manual / automatic integrated adjustment module of this utility model.

[0042] Figure 4 The diagram shown is an enlarged three-dimensional structural schematic of the water pipe positioning sensing module in this utility model.

[0043] Figure 5 The diagram shown is an enlarged three-dimensional structural schematic of the detection seat in this utility model;

[0044] Figure 6 The diagram shown is an enlarged three-dimensional structural diagram of the other side of the detection seat in this utility model;

[0045] Figure 7 The diagram shown is an enlarged three-dimensional structural schematic of the water pipe locking press-fit module in this utility model.

[0046] Figure 8 The diagram shown is an enlarged three-dimensional structural schematic of the hinge seat in this utility model.

[0047] Label Explanation

[0048] 1. Mounting bracket;

[0049] 2. Manual / automatic position adjustment module; 21. Cylinder No. 1; 22. Cylinder No. 1 rod; 23. Push block No. 1; 24. Connecting seat; 25. Adjusting block; 26. Square groove No. 1; 27. Rotating shaft No. 1; 28. T-block; 29. ​​Drive column; 210. Handle; 211. Waist hole No. 1;

[0050] 3. Water pipe positioning sensor module; 31. Detection seat; 32. Water pipe placement slot; 33. Sensor; 34. Sensor head; 35. Square slot; 36. Cover plate; 37. Detection pressure head; 38. Semi-circular boss; 39. No. 2 rotating shaft; 310. Short connecting rod; 311. No. 2 waist hole; 312. Shoulder screw; 313. Spring;

[0051] 4. Water pipe locking press-fit module; 41. Cylinder seat; 42. Cylinder No. 2; 43. Cylinder No. 2 rod; 44. Pressure rod arm; 45. No. 3 pivot; 46. No. 4 pivot; 47. Pressure rod; 48. Hinge seat; 49. No. 5 pivot; 410. Long connecting rod; 411. No. 6 pivot; Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0053] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown 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.

[0054] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0055] This utility model proposes an anti-misalignment welding fixture for EGR water pipe installation, used in the water pipe clamping and limiting process. This utility model does not restrict the type and position of the EGR to which the water pipe needs to be installed, but the structure of the mounting bracket 1, manual and automatic integrated adjustment module 2, water pipe positioning sensing module 3 and water pipe locking and pressing module 4 is particularly suitable for anti-misalignment and clamping and limiting installation of water pipes.

[0056] In general, the EGR water pipe installation anti-misalignment welding fixture proposed in this utility model mainly includes: mounting bracket 1, manual / automatic integrated adjustment module 2, water pipe positioning sensing module 3, and water pipe locking and pressing module 4. (See also...) Figure 1 It shows the arrangement of the mounting bracket 1, the manual / automatic adjustment module 2, the water pipe positioning sensing module 3, and the water pipe locking and pressing module 4.

[0057] The EGR water pipe installation anti-misalignment welding fixture proposed in this utility model activates cylinder 21 in the manual / automatic positioning module 2, moving the water pipe positioning sensing module 3 to the top of the already limited EGR. The water pipe is placed in the water pipe placement groove 32, with the top of the water pipe abutting the detection pressure head 37. The cylinder rod 43 in cylinder 42 of the water pipe locking and pressing module 4 is pushed forward. Under the push of cylinder rod 43, the pressure rod arm 44 swings downward along the rotation center of the third rotating shaft 45, causing the pressure rod 47 to enter the water pipe placement groove 32, limiting the water pipe within the groove. Simultaneously, the pressure rod arm 44 swings, and the pressure rod 47 swings downward via the fourth rotating shaft 46 with the fifth rotating shaft 49 as the rotation center. The downward movement of the pressure rod 47 drives the water pipe downward, inserting the bottom of the water pipe into the matching connection hole of the EGR until the bottom of the water pipe stops. When the moving convex ring contacts the EGR's mating part, the bottom of the detection head 37 will contact the sensing head 34 in the sensor 33. If the water pipe is installed backwards, the incorrectly installed end of the water pipe will be shorter than the length of the connection hole of the EGR's mating part. In this case, the bottom of the detection head 37 will not contact the sensing head 34, and the sensor 33 will alarm, prompting the operator that the water pipe is installed backwards. It should also be noted that when the EGR to be welded has a large dimensional tolerance or a large tolerance for the mating part connection hole, and the automatic pressing by cylinder 21 and cylinder 42 cannot accurately press the water pipe into the connection hole of the EGR's mating part, manual position calibration can be performed. Manually control the handle 210 in the manual-automatic integrated adjustment module 2 downwards, start cylinder 42 to press the water pipe against the outer surface of the EGR, and control the handle 210 to move up and down until the water pipe can be inserted into the connection hole of the EGR's mating part.

[0058] The aforementioned manual / automatic adjustment module 2 is bolted to the top of the mounting frame 1. The manual / automatic adjustment module 2 includes: a first cylinder 21, a connecting seat 24, an adjusting block 25, a T-shaped block 28, and a handle 210. The first cylinder 21 is bolted to one side of the top of the mounting frame 1. A first cylinder rod 22 passes through one side of the first cylinder 21, and a first push block 23 is located at the top of the first cylinder rod 22. The connecting seat 24 is bolted to the side of the first push block 23 away from the first cylinder 21. The adjusting block 25 is bolted to the side of the mounting frame 1 away from the first cylinder 21, and the adjusting block 25 is located at the position of the first cylinder 21. Below, a square groove 26 is provided on the top of the adjusting block 25. A rotating shaft 27 is inserted through the center of the square groove 26. A T-shaped block 28 is bolted to the bottom of the connecting seat 24 near the adjusting block 25. A drive column 29 is bolted to the center of the side of the T-shaped block 28 away from the connecting seat 24. The bottom of the handle 210 is fitted onto the rotating shaft 27. A waist hole 211 is provided in the middle section of the handle 210. The waist hole 211 is fitted onto the drive column 29. The drive handle 210 swings back and forth within the range formed by the drive column 29 and the waist hole 211, so that the adjusting block 25 drives the cylinder rod 22 to move back and forth.

[0059] The aforementioned water pipe positioning sensing module 3 is bolted to the center of the side of the manual / automatic positioning module 2 away from the mounting bracket 1. The water pipe positioning sensing module 3 includes: a detection seat 31, a water pipe placement groove 32, a sensor 33, a square groove 35, a cover plate 36, a detection pressure head 37, a short connecting rod 310, a shoulder screw 312, and a spring 313. The detection seat 31 is bolted to the side of the connecting seat 24 away from the first cylinder 21. The detection seat 31 is T-shaped. A water pipe placement groove 32 is formed on the side of the detection seat 31 away from the connecting seat 24. A sensor 33 is bolted to the left or right side of the detection seat 31 near the first cylinder 21. The top of the sensor 33 is a sensing head 34. A square groove 35 is formed through the center of the side of the detection seat 31 away from the water pipe placement groove 32. A cover plate 36 is bolted to the bottom of the detection seat 31 at the bottom end of the square groove 35. The detection pressure head 37 is L-shaped. The bottom is fitted into the square groove 35, providing space for the movement of the detection head 37 and guiding it. The left and right sides of the detection head 37 are directly above the sensor 33 and the water pipe placement groove 32. A pair of semi-circular protrusions 38 are provided at the center of the top of the detection head 37. A second rotating shaft 39 passes between the pair of semi-circular protrusions 38. The bottom of the short connecting rod 310 is fitted between the pair of semi-circular protrusions 38. The bottom of the short connecting rod 310 is fitted onto the second rotating shaft 39. The top of the short connecting rod 310... The part is provided with a second waist hole 311. The bottom of the shoulder screw 312 is located directly below the cover plate 36. The top of the shoulder screw 312 passes through the cover plate 36 and is connected to the detection head 37 through threaded engagement. A spring 313 is sleeved on the shoulder screw 312. The top of the spring 313 abuts against the cover plate 36, and the bottom of the spring 313 abuts against the bolt head in the shoulder screw 312. The spring 313 will give the detection head 37 a downward force, which, together with the detection head 37, is driven downward by the long connecting rod 410.

[0060] The aforementioned water pipe locking and pressing module 4 is bolted to the top of the manual / automatic positioning module 2 on the side away from the mounting bracket 1. The bottom of the water pipe locking and pressing module 4 contacts the water pipe positioning sensing module 3. The water pipe locking and pressing module 4 includes: cylinder seat 41, second cylinder 42, pressure rod arm 44, third rotating shaft 45, fourth rotating shaft 46, pressure rod 47, hinge seat 48, fifth rotating shaft 49, long connecting rod 410, and sixth rotating shaft 411. Among them, cylinder seat 41... The cylinder seat 41 is located directly above the detection seat 31 and is bolted to the top of the connecting seat 24. The cylinder seat 41 is in the shape of an inverted Y. A second cylinder 42 is bolted through the center of the top of the cylinder seat 41. A second cylinder rod 43 is threaded through one side of the second cylinder 42. The top of the pressure rod arm 44 is sleeved on the side of the second cylinder rod 43 away from the cylinder seat 41. The bottom of the pressure rod arm 44 extends towards the water pipe placement groove 32. Three... The first and third rotating shafts 45 extend straight through the left and right sides of the pressure rod arm 44. The fourth rotating shaft 46 is inserted directly below the pressure rod arm 44 on both sides. A pressure rod 47 is threaded through the bottom of the pressure rod arm 44, extending into the water pipe placement groove 32. A hinge seat 48 is bolted to the center of the bottom of the cylinder seat 41 on one side of the connecting seat 24. The hinge seat 48 is located between the cylinder seat 41 and the detection seat 3. Between 1, the No. 5 pivot 49 is fitted on the top of the hinge seat 48 near the side of the No. 2 cylinder rod 43. The bottom of the long connecting rod 410 is fitted on the left and right sides of the No. 5 pivot 49. The top of the long connecting rod 410 is fitted on the left and right sides of the No. 4 pivot 46. The No. 6 pivot 411 is fitted in the center of the No. 2 waist hole 311. The left and right sides of the No. 6 pivot 411 extend straight through the left and right sides of the long connecting rod 410. The No. 6 pivot 411 is located between the No. 5 pivot 49 and the No. 4 pivot 46.

[0061] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A welding fixture for preventing errors during EGR water supply pipe installation, characterized in that, include: Mounting bracket (1); The manual / automatic integrated adjustment module (2) is installed on the top of the mounting frame (1) by bolt connection; Water pipe positioning sensor module (3), the water pipe positioning sensor module (3) is set in the center of the side away from the mounting bracket (1) of the manual and automatic integrated adjustment module (2) by bolt connection; Water pipe locking and pressing module (4) is bolted to the top of the manual and automatic adjustment module (2) on the side away from the mounting bracket (1), and the bottom of the water pipe locking and pressing module (4) is in contact with the water pipe positioning sensing module (3).

2. The anti-misalignment welding fixture for EGR water supply pipe installation according to claim 1, characterized in that, The manual / automatic position adjustment module (2) includes: Cylinder No. 1 (21) is bolted to one side of the top of the mounting bracket (1). Cylinder No. 1 rod (22) is threaded through one side of Cylinder No. 1 (21). Cylinder No. 1 push block (23) is provided on the top of Cylinder No. 1 rod (22). A connecting seat (24) is bolted to the side of the first push block (23) away from the first cylinder (21); Adjustment block (25), the adjustment block (25) is bolted to the side of the mounting bracket (1) away from the first cylinder (21), the adjustment block (25) is located below the first cylinder (21), the top of the adjustment block (25) has a first square groove (26), and a first rotating shaft (27) is inserted through the center of the first square groove (26); T-shaped block (28), the T-shaped block (28) is bolted to the bottom of the connecting seat (24) near the adjusting block (25), and a driving column (29) is bolted to the center of the side of the T-shaped block (28) away from the connecting seat (24); The handle (210) is fitted at the bottom of the first rotating shaft (27), and the handle (210) has a first waist hole (211) in the middle section, which is fitted on the drive column (29).

3. The anti-misalignment welding fixture for EGR water supply pipe installation according to claim 2, characterized in that, The water pipe positioning sensing module (3) includes: The detection seat (31) is bolted to the side of the connecting seat (24) away from the first cylinder (21), and the detection seat (31) is T-shaped. Water pipe placement groove (32), the water pipe placement groove (32) is opened on the side of the detection seat (31) away from the connecting seat (24); Sensor (33) is bolted to the left or right side of the detection seat (31) near the first cylinder (21), and the top of the sensor (33) is a sensing head (34). A square groove (35) is provided, which extends through the center of the side of the detection seat (31) away from the water pipe placement groove (32); Cover plate (36), which is bolted to the bottom of the detection seat (31) at the bottom end of the square groove (35); The detection head (37) is L-shaped. The bottom of the detection head (37) is stuck in a square groove (35). The left and right sides of the detection head (37) are located directly above the sensor (33) and the water pipe placement groove (32). A pair of semi-circular protrusions (38) are provided in the center of the top of the detection head (37). A second rotating shaft (39) passes between the pair of semi-circular protrusions (38). A short connecting rod (310) is provided with its bottom being engaged between a pair of semi-circular bosses (38), and its bottom being sleeved on a second rotating shaft (39). A second waist hole (311) is provided on the top of the short connecting rod (310). A shoulder screw (312) is provided with its bottom positioned directly below the cover plate (36), and its top passes through the cover plate (36) and is connected to the detection pressure head (37) via a threaded connection. A spring (313) is fitted onto a shoulder screw (312), with the top of the spring (313) abutting against a cover plate (36) and the bottom of the spring (313) abutting against the bolt head in the shoulder screw (312).

4. The anti-misalignment welding fixture for EGR water supply pipe installation according to claim 3, characterized in that, The water pipe locking press-fit module (4) includes: Cylinder seat (41), the cylinder seat (41) is bolted to the top of the connecting seat (24) on one side, the cylinder seat (41) is located directly above the detection seat (31), the cylinder seat (41) is in the shape of an inverted Y; The second cylinder (42) is bolted to the center of the top of the cylinder seat (41), and a second cylinder rod (43) is threaded through one side of the second cylinder (42). A pressure rod arm (44) is fitted at the top of the second cylinder rod (43) on the side away from the cylinder seat (41), and the bottom of the pressure rod arm (44) extends toward the water pipe placement groove (32). The No. 3 rotating shaft (45) is mounted on the top of the No. 2 cylinder rod (43), and the No. 3 rotating shaft (45) extends straight through the left and right sides of the pressure rod arm (44). The fourth rotating shaft (46) is installed on the left and right sides of the pressure arm (44) directly below the third rotating shaft (45); A pressure rod (47) is threaded through the bottom of a pressure rod arm (44), and the bottom of the pressure rod (47) extends into the water pipe placement groove (32); The hinge seat (48) is bolted to one side of the connecting seat (24) and located at the center of the bottom of the cylinder seat (41). The hinge seat (48) is located between the cylinder seat (41) and the detection seat (31). Fifth pivot (49), which is mounted on the top of the hinge seat (48) near the side of the second cylinder rod (43); Long connecting rod (410), the bottom of the long connecting rod (410) is sleeved on the left and right sides of the fifth rotating shaft (49), and the top of the long connecting rod (410) is sleeved on the left and right sides of the fourth rotating shaft (46); The sixth pivot (411) is fitted in the center of the second waist hole (311). The sixth pivot (411) extends straight through the left and right sides of the long connecting rod (410). The sixth pivot (411) is located between the fifth pivot (49) and the fourth pivot (46).

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