Compression test tool for double-wall corrugated pipe

Abstract

The utility model discloses a compression test tool for a double-wall corrugated pipe, and relates to the related technical field of corrugated pipe processing. The device comprises a collection box, test assemblies and a magnetic bar, two groups of symmetrically distributed L-shaped supports are fixed at the upper end of an inner cavity of the collection box, and each group of L-shaped supports is provided with the test assembly; the test assembly comprises two symmetrical side plates, a bottom plate is arranged between the two side plates, and a sealing plate and a partition plate which are symmetrical and vertically distributed are inserted between the two side plates; a magnetic suction plate is embedded in the upper end face of the bottom plate, a corrugated pipe body is jointly inserted between all the partition plates and the sealing plate, and a magnetic rod is arranged in the corrugated pipe body. According to the utility model, through arranging the test assembly, the bottom plate, the magnetic suction plate and the magnetic bar, the problems that the contact area of the corrugated pipe is insufficient and the stress distribution is non-uniform in the conventional pressing plate type pressing and compression resistance test, so that the effective test cannot be obtained are solved; and an auxiliary fixing structure is lacked during a compression test of the corrugated pipe, so that position deviation is easy to generate during force application.

Description

Technical Field

[0001] The utility model belongs to the technical field related to bellows processing, in particular to a double-wall bellows compression test tool. Background Art

[0002] A corrugated pipe refers to a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and expansion direction. The types of corrugated pipes are roughly divided into: plastic bellows and metal bellows. Metal bellows are divided into galvanized and non-galvanized. Double-wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene. It has the characteristics of light weight, high pressure resistance, good toughness, fast construction, and long life. Its excellent pipe wall structure design greatly reduces the cost compared with pipes of other structures, and because of its convenient and reliable connection, it can replace concrete pipes and cast iron pipes in large quantities. Most large double-wall corrugated pipes need to be buried underground for use, so after production, their compressive performance needs to be tested to a certain extent, but there are still the following disadvantages in the use of related compressive test processes:

[0003] 1. The so-called compression test is to apply pressure on the bellows and observe its deformation to know its compression resistance. However, the current compression test method is mostly to use a pressure plate or other pressure holding parts to apply pressure to press down the bellows. This method can only contact a line at the top of the bellows, and the force is not uniform. Even if an arc plate is used to press down, the force application points are not consistent, and the force is not uniform enough. It is impossible to simulate the compression environment buried underground and obtain effective test results;

[0004] 2. The bellows is usually light and tough. If it is tested by direct pressure, it is easy to cause the position of the bellows to shift during the pressure application process, resulting in distortion and other phenomena, thus affecting the test results. Therefore, relevant auxiliary fixing equipment is required to facilitate the compression test. Utility Model Content

[0005] The purpose of the utility model is to provide a double-walled corrugated pipe compression test tool. By arranging a test component, a base plate, a magnetic suction plate, and a magnetic rod, the utility model solves the problems of insufficient contact area with the corrugated pipe and uneven force distribution in conventional pressure plate type compression test, which leads to ineffective testing; and the lack of auxiliary fixing structure during the compression test of the corrugated pipe, which easily causes positional deviation when force is applied.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a double-wall corrugated pipe compression test tool, comprising a collection box, a test assembly and a magnetic rod. Two groups of symmetrically distributed L-shaped brackets are fixed on the upper end of the inner cavity of the collection box, and each group of the L-shaped brackets is provided with a test assembly;

[0008] The test assembly includes two symmetrical side panels, a bottom plate is arranged between the two side panels, and reinforcing rib plates are fixed at the sides of the opposite surfaces of the two side panels, the bottom end of the reinforcing rib plate is fixedly connected to the upper end of the bottom plate, and symmetrical and vertically distributed sealing plates and partitions are inserted between the two side panels, and a plurality of partitions are located between the two sealing plates;

[0009] A magnetic attraction plate is embedded in the upper surface of the bottom plate, a bellows body is inserted between all the partitions and the sealing plate, and a magnetic rod is arranged in the bellows body.

[0010] Furthermore, a slot is provided between the opposite surfaces of the two side plates, and the sealing plate and the partition plate are both inserted into the corresponding slots. The two sealing plates are closer to the end surfaces of the side plates than the partition plates, and the bottom ends of the sealing plates and the partition plates contact the upper end surface of the bottom plate.

[0011] Furthermore, a through hole 1 is opened at the lower part of the sealing plate, a through hole 2 is opened at the lower part of the partition plate, the bellows body passes through all through holes 1 and 2, and the diameter of the bellows body is equal to the diameter of through hole 1, and the size of through hole 2 is larger than the cross-sectional size of the bellows body.

[0012] Furthermore, a connecting plate is fixed between the adjacent ends of the two side plates, and the connecting plate is located above the end of the corrugated pipe body.

[0013] Furthermore, a rotating plate is hingedly connected to both sides of the base plate, and pin holes 2 are provided at positions of both ends of the rotating plate away from the base plate, and pin hole 1 is provided on the collection box which is in the same straight line as pin hole 2, and a limiting pin is inserted into pin hole 1 and pin hole 2 which are in the same straight line and close to each other.

[0014] Furthermore, the magnetic bar is located at the inner bottom of the bellows body, handles are fixed at both ends of the magnetic bar, the length of the bellows body is greater than the length of the side plate, and the length of the magnetic bar is greater than the length of the bellows body.

[0015] Furthermore, the length of the side plate is smaller than the length of the L-shaped bracket, and the upper end surface of the bottom plate is flush with the upper end surfaces of the collection box and the L-shaped bracket.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model solves the problem of insufficient contact area of ​​the bellows and uneven force distribution in conventional pressure plate type compression test, which leads to failure of effective testing, by setting a test component; the test component is placed on an L-shaped bracket in a collection box, and the collection box can be of different sizes and can hold more test components, each test component can test the compression performance of a double-walled corrugated pipe, first all the partitions are inserted into the inner side of the side plate, then the bellows body is passed through all the partitions, and finally the sealing plate is inserted, the end of the bellows body passes through a through hole in the sealing plate, and then soil is poured into the area between the two side plates to directly simulate the effect of burial, so as to better obtain the intuitive display effect of compression resistance, directly pouring soil to achieve the effect of pre-buried, more comprehensive contact with the bellows body, so that the pressure distribution received by it is more uniform, and the compression effect of each section of the bellows can be observed through the separation of the partition, and all the partitions can be taken out after the soil is poured, and the overall compression effect of the bellows body is observed to obtain an effective compression test, and the side plates are made of transparent materials.

[0018] 2. The utility model solves the problem of lack of auxiliary fixing structure during the pressure test of the bellows, which is easy to cause position deviation when force is applied, by arranging a bottom plate, a magnetic attraction plate and a magnetic rod; after the bellows body is placed, the end of the bellows body is placed in the sealing plate for clamping, but the middle area of ​​the bellows body is relatively loose, so the magnetic rod is placed in the bellows body, and cooperates with the magnetic attraction plate to adsorb and fix each other, so that the bellows body cannot cause position deviation and does not affect the actual pressure test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 A three-dimensional diagram of a double-wall corrugated pipe compression test tool;

[0021] Figure 2 This is a structural diagram of the collection box;

[0022] Figure 3 It is the connection diagram between the test assembly and the bellows body;

[0023] Figure 4 A diagram of the structure after removing a side panel for the test assembly;

[0024] Figure 5 This is the structural diagram of the sealing plate;

[0025] Figure 6 The structural diagram of the partition;

[0026] Figure 7 It is the structural diagram of the magnetic bar;

[0027] Figure 8 A structural diagram of the test component;

[0028] Fig. 9 Diagram of the state when the soil is released for the test component;

[0029] Fig.10 Bottom view of the test assembly.

[0030] Reference numerals:

[0031] 1. Collection box; 101. L-shaped bracket; 102. Limit pin; 103. Pin hole one; 2. Test assembly; 201. Side panel; 2011. Card slot; 202. Closing plate; 2021. Through hole one; 203. Partition plate; 2031. Through hole two; 204. Connecting plate; 205. Bottom plate; 2051. Magnetic plate; 2052. Hinge; 206. Reinforcement plate; 207. Rotating plate; 2071. Pin hole two; 3. Bellows body; 4. Magnetic rod; 401. Handle. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] See also Figure 1-10 As shown, the utility model is a double-wall corrugated pipe compression test tool, comprising a collection box 1, a test assembly 2 and a magnetic rod 4. Two groups of symmetrically distributed L-shaped brackets 101 are fixed to the upper end of the inner cavity of the collection box 1, and each group of L-shaped brackets 101 is provided with a test assembly 2;

[0034] Each set of L-shaped brackets 101 has two and are symmetrically distributed to support the two side panels 201 in the test assembly 2 so that the whole is located above the collection box 1;

[0035] The test assembly 2 includes two symmetrical side panels 201, a bottom panel 205 is disposed between the two side panels 201, and reinforcing rib panels 206 are fixed to the sides of the opposite surfaces of the two side panels 201, the bottom end of the reinforcing rib panel 206 is fixedly connected to the upper end of the bottom panel 205, and a symmetrical and vertically distributed sealing panel 202 and a partition panel 203 are inserted between the two side panels 201, and a plurality of partition panels 203 are located between the two sealing panels 202;

[0036] The two side plates 201 are connected to each other as a whole through the reinforcing rib plate 206 and the bottom plate 205, and the connecting plate 204 is installed at the end of the side plate 201 to strengthen the structural strength. A plurality of sealing plates 202 and partition plates 203 are inserted between the two side plates 201 to separate the area between the two side plates 201, so that effective observation can be made during the subsequent compression test to observe the compression effect of each part of the bellows body 3;

[0037] A magnetic attraction plate 2051 is embedded on the upper end surface of the bottom plate 205, and a bellows body 3 is inserted between all the partitions 203 and the sealing plate 202, and a magnetic rod 4 is arranged inside the bellows body 3;

[0038] After the bellows body 3 is placed, the magnetic bar 4 is placed inside the bellows body 3 and cooperates with the magnetic plate 2051 to be adsorbed and fixed to each other, so that the bellows body 3 cannot be offset and does not affect the actual compression test effect.

[0039] A slot 2011 is provided between the opposite surfaces of the two side plates 201. The sealing plate 202 and the partition plate 203 are both inserted into the corresponding slots 2011. The two sealing plates 202 are closer to the end surfaces of the side plates 201 than the partition plates 203. The bottom ends of the sealing plates 202 and the partition plates 203 contact the upper end surface of the bottom plate 205.

[0040] A through hole 1 2021 is formed at the bottom of the sealing plate 202, a through hole 2031 is formed at the bottom of the partition plate 203, the bellows body 3 passes through all the through holes 1 2021 and the through holes 2031, and the diameter of the bellows body 3 is equal to the diameter of the through hole 1 2021, and the size of the through hole 2031 is larger than the cross-sectional size of the bellows body 3;

[0041] The sealing plate 202 and the partition plate 203 are both inserted between the two side plates 201 through the slot 2011. The through hole 2031 in the partition plate 203 is much larger than the cross-sectional size of the bellows main body 3, so that there is enough deformation space during the subsequent pressure resistance test to avoid the bellows main body 3 being unable to deform due to the limitation of the partition plate 203, and to avoid the inability to obtain intuitive test results. The sealing plate 202 and the through hole 1 2021 on its inner side are consistent with the diameter of the bellows main body 3. Because the ends of the bellows main body 3 are connected to another bellows through related connecting components, its pressure resistance is much greater than the bellows main body 3 itself. Therefore, the partition plate 203 and the sealing plate 202 are used to limit the bellows main body 3 to a certain extent and separate different areas, so as to facilitate the observation of the pressure resistance of different parts.

[0042] A connecting plate 204 is fixed between the adjacent ends of the two side plates 201, and the connecting plate 204 is located above the end of the bellows body 3;

[0043] The two side panels 201 are further connected by the connecting plate 204 to enhance the structural strength.

[0044] The two sides of the bottom plate 205 are hingedly connected with the rotating plate 207 through the hinge 2052, and the two ends of the rotating plate 207 are provided with a second pin hole 2071 at a position away from the bottom plate 205, and the collection box 1 which is in the same straight line with the second pin hole 2071 is provided with a first pin hole 103, and the first pin hole 103 and the second pin hole 2071 which are in the same straight line and close to each other are jointly inserted with the limit pin 102;

[0045] When the rotating plate 207 is horizontal, the limit pin 102 is inserted into the corresponding pin hole 103 and the pin hole 2071 to limit the rotating plate 207 from rotating. At this time, the two rotating plates 207 and the bottom plate 205 can complete the sealing of the bottom surface between the two side plates 201 to support the subsequent dumping of soil, simulating the effect of burial; when dumping soil, the limit pin 102 is pulled out, the rotating plate 207 rotates to a vertical state, and the soil falls into the collection box 1, which is convenient for next use;

[0046] The magnetic bar 4 is located at the inner bottom of the bellows body 3, and handles 401 are fixed at both ends of the magnetic bar 4. The length of the bellows body 3 is greater than the length of the side plate 201, and the length of the magnetic bar 4 is greater than the length of the bellows body 3;

[0047] The magnetic rod 4 is placed inside the bellows body 3 through the handle 401 , and the magnetic rod 4 cooperates with the magnetic attraction plate 2051 and is adsorbed and fixed to each other, so that the bellows body 3 cannot be deflected.

[0048] The length of the side plate 201 is smaller than that of the L-shaped bracket 101 , and the upper end surface of the bottom plate 205 is flush with the upper end surfaces of the collection box 1 and the L-shaped bracket 101 .

[0049] The specific working principle of the utility model is as follows: first, the test assembly 2 is placed on the corresponding L-shaped bracket 101, each group of L-shaped brackets 101 is two, used to support the two side plates 201 in the test assembly 2, then, first, all the partitions 203 are inserted into the inner side of the side plates 201, and then the bellows body 3 passes through all the partitions 203, and finally inserted into the sealing plate 202, and the end of the bellows body 3 passes through the through hole 1 2021 in the sealing plate 202; then, the rotating plate 207 is leveled, and the limit pin 102 is inserted into the corresponding pin hole 103 and pin hole 2071, so that the rotating plate 207 can be restricted from rotating. At this time, the two rotating plates 207 and the bottom plate 205 are The bottom surface between the two side plates 201 can be closed, and then soil can be poured into the area between the two side plates 201 to directly simulate the effect of burial. Directly pouring soil can achieve the effect of pre-burial, and the bellows body 3 can be more fully contacted, so that the pressure distribution it receives is more uniform, and the compression resistance of each part of the bellows can be observed through the separation of the partition 203. After the soil is poured, all the partitions 203 can be taken out, and the overall compression resistance effect of the bellows body 3 can be observed to obtain an effective compression test; finally, pull out the limit pin 102, rotate the rotating plate 207 to a vertical state, and the soil will fall into the collection box 1, which is convenient for the next test.

[0050] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A double-wall corrugated pipe compression test tool, comprising a collection box (1), a test assembly (2) and a magnetic rod (4), characterized in that: Two groups of symmetrically distributed L-shaped brackets (101) are fixed to the upper end of the inner cavity of the collection box (1), and a test component (2) is arranged on each group of the L-shaped brackets (101); The test assembly (2) comprises two symmetrical side panels (201), a bottom panel (205) is arranged between the two side panels (201), reinforcing rib panels (206) are fixed at the sides of the opposite surfaces of the two side panels (201), the bottom end of the reinforcing rib panel (206) is fixedly connected to the upper end of the bottom panel (205), and a symmetrical and vertically distributed sealing panel (202) and a partition panel (203) are inserted between the two side panels (201), and a plurality of partition panels (203) are located between the two sealing panels (202); A magnetic attraction plate (2051) is embedded in the upper end surface of the bottom plate (205), a bellows body (3) is inserted between all the partitions (203) and the sealing plate (202), and a magnetic rod (4) is arranged inside the bellows body (3).

2. A double-wall corrugated pipe compression test tool according to claim 1, characterized in that: A slot (2011) is provided between the opposite surfaces of the two side plates (201), and the sealing plate (202) and the partition plate (203) are both inserted into the corresponding slots (2011). The two sealing plates (202) are closer to the end surfaces of the side plates (201) than the partition plates (203), and the bottom ends of the sealing plates (202) and the partition plates (203) contact the upper end surface of the bottom plate (205).

3. A double-wall corrugated pipe compression test tool according to claim 1, characterized in that: The sealing plate (202) has a through hole 1 (2021) at the bottom, the partition plate (203) has a through hole 2 (2031) at the bottom, the bellows body (3) passes through all the through holes 1 (2021) and through holes 2 (2031), the diameter of the bellows body (3) is equal to the diameter of the through hole 1 (2021), and the size of the through hole 2 (2031) is larger than the cross-sectional size of the bellows body (3).

4. A double-wall corrugated pipe compression test tool according to claim 1, characterized in that: A connecting plate (204) is fixed between the adjacent ends of the two side plates (201), and the connecting plate (204) is located above the end of the corrugated pipe body (3).

5. The double-wall corrugated pipe compression test tool according to claim 1, characterized in that: The two sides of the bottom plate (205) are hingedly connected to the rotating plate (207) via hinges (2052), and the two ends of the rotating plate (207) are provided with a second pin hole (2071) at positions away from the bottom plate (205), and the collection box (1) which is on the same straight line as the second pin hole (2071) is provided with a first pin hole (103), and the first pin hole (103) and the second pin hole (2071) which are on the same straight line and close to each other are jointly inserted with a limiting pin (102).

6. A double-wall corrugated pipe compression test tool according to claim 1, characterized in that: The magnetic bar (4) is located at the inner bottom of the bellows body (3), handles (401) are fixed at both ends of the magnetic bar (4), the length of the bellows body (3) is greater than the length of the side plate (201), and the length of the magnetic bar (4) is greater than the length of the bellows body (3).

7. The double-wall corrugated pipe compression test tool according to claim 1, characterized in that: The length of the side plate (201) is less than the length of the L-shaped bracket (101), and the upper end surface of the bottom plate (205) is flush with the upper end surfaces of the collection box (1) and the L-shaped bracket (101).

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