Tubular product external impact resistance testing machine

Abstract

The utility model relates to the technical field of pipe testing, and particularly discloses a pipe external impact resistance testing machine which comprises a supporting mechanism, an impact mechanism used for adjusting impact force is arranged on the supporting mechanism, and a force unloading mechanism used for supporting and protecting the damaged pipe due to the impact force is arranged on the lower side of the impact mechanism. The force unloading mechanism comprises a guide column fixed to the supporting mechanism, the two sides of the guide column are oppositely arranged, sliding rods are arranged on the guide column in a front-back sleeving mode, connecting rods are arranged on the sliding rods, bearing plates are connected to the connecting rods, and springs are arranged on the guide column and located on the outer sides of the sliding rods in a sleeving mode. According to the utility model, through the arrangement of the force unloading mechanism, when the impact mechanism detects a pipe and after the pipe is damaged, the impact mechanism continues to move downwards and is in contact with the bearing plate on the lower side, the bearing plate presses the connecting rod downwards to push the sliding rod, the sliding rod extrudes the spring under the limit of the guide column, and the spring converts and buffers the downward impact force; and the impact damage to the support on the lower side is avoided, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe testing, in particular to a pipe external impact resistance testing machine. Background Art

[0002] With the rapid expansion of urban and rural areas, the huge demand for plastic pipes in municipal infrastructure and military and civil construction has put forward higher requirements for the performance of plastic pipes and products mainly made of polyvinyl chloride, such as high strength, high impact resistance and weather resistance. As a polymer matrix material, rigid polyvinyl chloride (PVC) has the advantages of high hardness, high strength, excellent flame retardancy and good aging resistance. In the production process of pipes, it is necessary to test the impact strength of plastic pipes. At present, during the test, heavy objects are dropped from a high place to perform impact tests on the pipes. After the pipes are damaged by impact, the heavy objects continue to move downwards, which will continue to impact the supports on the lower side, which is easy to cause damage to the supports. Utility Model Content

[0003] The purpose of the utility model is to provide a pipe external impact resistance testing machine in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A pipe external impact resistance testing machine comprises a supporting mechanism, an impact mechanism for adjusting the impact force is arranged on the supporting mechanism, a force unloading mechanism for supporting and protecting the pipe after the impact force damages the pipe is arranged at the lower side of the impact mechanism; the force unloading mechanism comprises a guide column fixed on the supporting mechanism, the two sides of the guide column are arranged opposite to each other, sliding rods are sleeved on the front and back of the guide column, a connecting rod is arranged on the sliding rod, a pressure plate is connected to the connecting rod, and a spring is sleeved on the guide column and located outside the sliding rod.

[0006] Further configuration: the supporting mechanism includes a base, two columns are vertically arranged on the upper end of the base, a top plate is fixed on the upper end of the columns, a protective cover is fixed on the base, and a V-shaped support is arranged on the upper end of the base between the columns.

[0007] Further configuration: the impact mechanism includes an impact plate arranged on the column, counterweight blocks are movably installed on both sides of the upper end of the impact plate, a winch is installed on the top plate, a pulley is arranged on one side of the winch, a lifting ring is fixed on the upper end of the impact plate, and the lifting ring is connected to a steel wire rope that passes through the pulley and is wound around the winch.

[0008] Further configuration: the impact plate is slidably connected to the column, the counterweight block is penetrated on the impact plate through a screw rod, and the pulley is rotatably connected to the top plate.

[0009] Further configuration: the height of the pipe placed on the V-shaped support is greater than the height of the pressure plate in a natural state.

[0010] It is further arranged that the sliding rod is slidably connected to the guide column, and the connecting rod is rotatably connected to the sliding rod and the pressure plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] Through the setting of the unloading mechanism, when the impact mechanism is testing the pipe, after the pipe is damaged, the impact mechanism continues to move downward and contacts with the pressure plate on the lower side. The pressure plate presses down the connecting rod to push the sliding rod, so that the sliding rod squeezes the spring under the limit of the guide column. The spring converts and buffers the downward impact force to avoid impact damage to the lower support, thereby improving safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is an axonometric diagram of a pipe external impact resistance testing machine described in the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of a pipe external impact resistance testing machine described in the utility model;

[0016] Figure 3 It is a schematic structural diagram of a pipe external impact resistance testing machine of the utility model after removing the protective cover;

[0017] Figure 4 It is a partial structural schematic diagram of a force unloading mechanism of a pipe external impact resistance testing machine described in the utility model.

[0018] The following are the descriptions of the reference numerals:

[0019] 1. Support mechanism; 11. Base; 12. Protective cover; 13. Column; 14. Top plate; 15. V-shaped support; 2. Impact mechanism; 21. Impact plate; 22. Lifting ring; 23. Counterweight; 24. Pulley; 25. Winch; 3. Unloading mechanism; 31. Guide column; 32. Sliding rod; 33. Spring; 34. Connecting rod; 35. Pressure plate. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1-Figure 4 As shown, a pipe external impact resistance testing machine comprises a support mechanism 1, an impact mechanism 2 for adjusting the impact force is arranged on the support mechanism 1, and a force unloading mechanism 3 for supporting and protecting the pipe after the impact force damages the pipe is arranged at the lower side of the impact mechanism 2;

[0024] In this embodiment: the support mechanism 1 includes a base 11, two columns 13 are vertically arranged on the upper end of the base 11, a top plate 14 is fixed on the upper end of the column 13, and a protective cover 12 is fixed on the base 11 to prevent the pipe from breaking and flying out during the impact force detection process. A V-shaped support 15 is arranged on the upper end of the base 11 between the columns 13 for placing the detection pipe.

[0025] In this embodiment: the impact mechanism 2 includes an impact plate 21 arranged on the column 13, and counterweights 23 are movably installed on both sides of the upper end of the impact plate 21 to facilitate the adjustment of the impact force. A winch 25 is installed on the top plate 14, and a pulley 24 is arranged on one side of the winch 25. A lifting ring 22 is fixed to the upper end of the impact plate 21, and a steel wire rope that passes around the pulley 24 and is wound on the winch 25 is connected to the lifting ring 22. The impact plate 21 is slidably connected to the column 13, and the counterweight 23 is penetrated on the impact plate 21 by a screw, and the pulley 24 is rotatably connected to the top plate 14. The winch 25 works to pull the impact plate 21 as a whole to move upward under the limit of the column 13. When the set height is reached, the winch 25 stops working, and the impact plate 21 falls downward under the action of gravity, and the pipe placed on the V-shaped support 15 is impact tested.

[0026] In this embodiment: the unloading mechanism 3 includes a guide column 31 fixed on the supporting mechanism 1, and the two sides of the guide column 31 are arranged opposite to each other. A sliding rod 32 is sleeved on the front and rear of the guide column 31, and a connecting rod 34 is arranged on the sliding rod 32. A pressure plate 35 is connected to the connecting rod 34. A spring 33 is sleeved on the guide column 31 on the outer side of the sliding rod 32. The height of the pipe placed on the V-shaped support 15 is greater than the height of the pressure plate 35 in the natural state. The sliding rod 32 is slidably connected to the guide column 31, and the connecting rod 34 is rotatably connected to the sliding rod 32 and the pressure plate 35. When the pipe is damaged, the impact plate 21 continues to move downward and contacts the pressure plate 35 on the lower side. The pressure plate 35 presses down the connecting rod 34 to push the sliding rod 32, so that the sliding rod 32 squeezes the spring 33 under the limit of the guide column 31, and the spring 33 converts and buffers the downward impact force to avoid impact damage to the lower side by the impact plate 21.

[0027] The working principle and use process of the utility model are as follows: the pipe is placed on the V-shaped support 15, and a suitable counterweight block 23 is fixed on the impact plate 21. The winch 25 is used to pull the impact plate 21 as a whole to move upward under the limit of the column 13. When the set height is reached, the winch 25 stops working, and the impact plate 21 falls downward under the action of gravity to impact the pipe placed on the V-shaped support 15. When the pipe is damaged, the impact plate 21 continues to move downward and contacts the pressure plate 35 on the lower side. The pressure plate 35 presses down the connecting rod 34 to push the sliding rod 32, so that the sliding rod 32 squeezes the spring 33 under the limit of the guide column 31. The spring 33 converts and buffers the downward impact force to avoid damage to the lower side caused by the impact of the impact plate 21, thereby improving the safety of use.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A pipe external impact tester, characterized in that: The invention comprises a support mechanism (1), wherein an impact mechanism (2) for adjusting the impact force is arranged on the support mechanism (1), and a force unloading mechanism (3) for supporting and protecting the impact force after damaging the pipe is arranged on the lower side of the impact mechanism (2); the force unloading mechanism (3) comprises a guide column (31) fixed on the support mechanism (1), the two sides of the guide column (31) are arranged opposite to each other, a sliding rod (32) is sleeved on the front and rear of the guide column (31), a connecting rod (34) is arranged on the sliding rod (32), a pressure plate (35) is connected to the connecting rod (34), and a spring (33) is sleeved on the guide column (31) and located outside the sliding rod (32).

2. The pipe external impact tester according to claim 1, characterized in that: The support mechanism (1) comprises a base (11), two columns (13) are vertically arranged at the upper end of the base (11), a top plate (14) is fixed to the upper end of the columns (13), a protective cover (12) is fixed to the base (11), and a V-shaped support (15) is arranged at the upper end of the base (11) between the columns (13).

3. The pipe external impact tester according to claim 2, characterized in that: The impact mechanism (2) comprises an impact plate (21) arranged on the column (13), counterweights (23) are movably installed on both sides of the upper end of the impact plate (21), a winch (25) is installed on the top plate (14), a pulley (24) is arranged on one side of the winch (25), a lifting ring (22) is fixed on the upper end of the impact plate (21), and a steel wire rope is connected to the lifting ring (22) and bypasses the pulley (24) and is wound around the winch (25).

4. The pipe external impact tester according to claim 3, characterized in that: The impact plate (21) is slidably connected to the column (13), the counterweight (23) is inserted through the impact plate (21) via a screw, and the pulley (24) is rotationally connected to the top plate (14).

5. The pipe external impact tester according to claim 2, characterized in that: The height of the pipe placed on the V-shaped support (15) is greater than the height of the pressure plate (35) in a natural state.

6. The pipe external impact tester according to claim 5, characterized in that: The sliding rod (32) is slidably connected to the guide column (31), and the connecting rod (34) is rotationally connected to the sliding rod (32) and the pressure plate (35).

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