Electrician casing compression resistance experiment device

Abstract

The utility model discloses an electrician casing compressive test device, which belongs to the technical field of compressive test equipment, and comprises a bottom plate, a test bed and a fixing plate, the top of the bottom plate is connected with a bearing column, the top of the bearing column is connected with a placing table, two sides of the bearing column are provided with sliding blocks, and the tops of the sliding blocks are fixedly connected with pipe clamps. A force application rod is installed at the top of the fixing plate, a pressure box is connected to the top of the force application rod, a pressing head is connected to the top of the force application rod, and a sand box is arranged above the pressure box. The sleeve penetrates through the pipe clamp and is placed on the placing table, and the sleeve can be effectively prevented from sliding due to compression due to the arrangement of the pipe clamp; sand uniformly flows into the pressure box from the sand box, the pressure box drives the force application rod to move downwards, the pressure head applies pressure to the casing pipe, finally, the weight of the sand and the weight of the force application rod, the pressure box and the pressure head are measured to obtain the bearing weight, the load can be uniformly increased by adding the sand at a constant speed, and therefore the pressure resistance of the casing pipe can be better reflected.

Description

Technical Field

[0001] The utility model relates to a compression test device, in particular to an electrical casing compression test device, belonging to the technical field of compression test equipment. Background Art

[0002] Electrical conduit, also known as threading tube, is a white hard PVC wire tube, mainly used for threading wires. It has the characteristics of corrosion resistance and leakage prevention, and is widely used in various occasions where wires need to be threaded. Before the electrical conduit leaves the factory, it needs to be pressure tested to ensure that its compressive strength meets the requirements. At this time, an electrical conduit compression test device is needed. The principle of the current electrical conduit pressure testing machine is to directly apply a certain amount of load on the conduit to test the deformation of the conduit. However, slowly and evenly increasing the load can better reflect the compression resistance of the conduit. At the same time, the existing pressure testing machine does not have a fixing device for the conduit, which will cause the conduit to slide laterally during the load application process. According to the Chinese Utility Model Patent (Application Number: 202122106320.3), a compression test device for electrical conduits is disclosed. The utility model belongs to the technical field of compression test devices, and discloses a compression performance test device for an electrical casing, wherein the left column and the right column are respectively vertically fixed on a base, the upper and lower pressure plates pass through the left column and the right column on both sides, and the upper pressure plate is arranged directly above the lower pressure plate, the force-applying component is fixed on the base, the power output end of the force-applying component faces the lower end face of the lower pressure plate, the steel block is placed on the upper end face of the lower pressure plate and is used to press the sample electrical casing, the pressing component is fixed on the lower end face of the upper pressure plate, the lower end face of the pressing component corresponds to the position of the upper end face of the steel block and a spacing is reserved, the compression test weight is arranged on the upper end face of the upper pressure plate, the limit component is arranged on the left column and the right column on the lower side of the upper pressure plate and the lower pressure plate, and the limit component is used to limit the lowest position of the upper pressure plate and the lower pressure plate.

[0003] However, the above device still has the following problems: the above device cannot increase the load evenly by using weights to increase the pressure, and therefore cannot well reflect the compression resistance of the casing; in addition, the device does not have a fixing device for the casing, which may cause the casing to slide sideways during the load application process.

[0004] The utility model proposes a new solution to the above problems. Utility Model Content

[0005] The main purpose of the utility model is to solve the deficiencies of the prior art and provide an electrical casing compression test device.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A compression test device for electrical conduits comprises a base plate, a test bench is arranged above the base plate, a fixed plate is arranged above the test bench, a bearing column passing through the test bench is fixedly connected to the top of the base plate, a placement table located at the top of the test bench is fixedly connected to the top of the bearing column, sliding blocks slidably mounted on the top of the test bench are arranged on both sides of the bearing column, a pipe clamp is fixedly connected to the top of the sliding block, a force rod is slidably mounted through the top of the fixed plate, a pressure box located above the fixed plate is fixedly connected to the top of the force rod, a pressure head located below the fixed plate is threadedly connected to the top of the force rod, and a sand box is arranged above the pressure box.

[0008] Preferably, a slide groove is provided on the top of the test bench, and a sliding block cooperating with the slide groove is fixedly connected to the bottom of the sliding block.

[0009] Preferably, the pipe clamp comprises a bearing ring fixedly connected to the top of the sliding block, a fixing ring is rotatably connected to the top of the bearing ring via a pin, and an elastic member is slidably mounted on the top of the fixing ring.

[0010] Preferably, one end of the carrying ring is rotatably connected to a locking piece, and one end of the fixing ring is provided with a locking groove that cooperates with the locking piece.

[0011] Preferably, a rubber block is connected to the top of the carrying ring.

[0012] Preferably, the elastic member includes a sliding rod passing through the fixing ring, the top of the sliding rod is threadedly connected to a mounting cap located above the fixing ring, the bottom of the sliding rod is fixedly connected to a pressure block located between the supporting ring and the fixing ring, and the outer side of the sliding rod is sleeved with a spring located between the pressure block and the fixing ring.

[0013] Preferably, a threaded hole is provided at the bottom of the force applying rod, and a stud threadedly connected to the threaded hole is fixedly connected to the top of the pressure head.

[0014] Preferably, the base plate and the test bench as well as the test bench and the fixing plate are all fixedly connected with support rods.

[0015] Preferably, the bottom of the sand box is fixedly connected with a sand discharge pipe located inside the pressure box, and a valve is installed on the sand discharge pipe.

[0016] Preferably, columns are fixedly connected on the same side of the test bench and the sand box, and handles are installed on both sides of the pressure box.

[0017] The beneficial technical effect of the utility model is as follows: according to the electrical casing compression test device of the utility model, the casing is passed through the pipe clamp and placed on the placement table through the setting of the force rod, the pressure box, the pressure head and the sand box. The setting of the pipe clamp can effectively prevent the casing from sliding under pressure; the sand flows evenly from the sand box into the pressure box, the pressure box drives the force rod downward, and the pressure head applies pressure to the casing. Finally, the weight of the sand plus the weight of the force rod, the pressure box and the pressure head is measured, which is the bearing weight. The load can be evenly increased by adding sand at a uniform speed, so the compression resistance of the casing can be better reflected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment provided by the utility model;

[0019] Figure 2 A schematic diagram of a bottom plate structure according to a preferred embodiment of the utility model;

[0020] Figure 3 A schematic diagram of a pipe clamp structure according to a preferred embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure of an elastic member according to a preferred embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the force application rod structure according to a preferred embodiment of the utility model;

[0023] Figure 6 The figure is a schematic diagram of the pressure head structure according to a preferred embodiment of the utility model.

[0024] In the figure: 1, bottom plate; 2, test bench; 3, fixed plate; 4, bearing column; 5, placement table; 6, sliding block; 7, pipe clamp; 8, force rod; 9, pressure box; 10, pressure head; 11, sand box; 201, slide groove; 601, slider; 701, bearing ring; 702, fixing ring; 703, locking piece; 704, locking groove; 705, rubber block; 12, elastic piece; 121, sliding rod; 122, mounting cap; 123, pressure block; 124, spring; 801, threaded hole; 101, stud; 13, support rod; 14, sand tube; 15, column; 901, handle. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0026] like Figure 1-Figure 6As shown, the electrical conduit compression test device provided in this embodiment includes a base plate 1, a test bench 2 is arranged above the base plate 1, a fixed plate 3 is arranged above the test bench 2, a bearing column 4 is fixedly connected to the top of the base plate 1 and passes through the test bench 2, the top of the bearing column 4 is fixedly connected to a placement table 5 located at the top of the test bench 2, sliding blocks 6 slidably installed on the top of the test bench 2 are arranged on both sides of the bearing column 4, a pipe clamp 7 is fixedly connected to the top of the sliding block 6, a force rod 8 is slidably installed through the top of the fixed plate 3, the top of the force rod 8 is fixedly connected to a pressure box 9 located above the fixed plate 3, the top of the force rod 8 is threadedly connected to a pressure head 10 located below the fixed plate 3, and a sand box 11 is arranged above the pressure box 9. Through the arrangement of the force-applying rod 8, the pressure box 9, the pressure head 10 and the sand box 11, the casing is passed through the pipe clamp 7 and placed on the placement table 5. The arrangement of the pipe clamp 7 can effectively prevent the casing from sliding under pressure; the sand flows evenly from the sand box 11 into the pressure box 9, the pressure box 9 drives the force-applying rod 8 downward, and the pressure head 10 applies pressure to the casing. Finally, the weight of the sand plus the weight of the force-applying rod 8, the pressure box 9 and the pressure head 10 is measured to be the bearing weight. The uniform addition of sand can evenly increase the load, so the compression resistance of the casing can be better reflected.

[0027] In this embodiment, if Figure 1 and Figure 2 As shown, a slide groove 201 is provided on the top of the test bench 2, and a slider 601 which cooperates with the slide groove 201 is fixedly connected to the bottom of the sliding block 6. Through the cooperation between the slide groove 201 and the slider 601, sleeves of different lengths can be tested.

[0028] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the pipe clamp 7 includes a bearing ring 701 fixedly connected to the top of the sliding block 6, a fixing ring 702 is rotatably connected to the top of the bearing ring 701 through a pin, an elastic member 12 is provided on the top of the fixing ring 702 for sliding installation, a locking member 703 is rotatably connected to one end of the bearing ring 701, a locking groove 704 is provided at one end of the fixing ring 702 for matching with the locking member 703, and a rubber block 705 is connected to the top of the bearing ring 701. Through the arrangement of the bearing ring 701, the fixing ring 702, the locking member 703 and the locking groove 704, the locking member 703 is loosened, the fixing ring 702 is rotated, and the sleeve is conveniently installed, and then the locking is conveniently and practically performed through the cooperation of the locking member 703 and the locking groove 704, and the rubber block 705 has an anti-slip effect.

[0029] In this embodiment, if Figure 1 , Figure 3 and Figure 4As shown, the elastic member 12 includes a slide bar 121 that passes through the fixing ring 702, the top of the slide bar 121 is threadedly connected with a mounting cap 122 located above the fixing ring 702, the bottom of the slide bar 121 is fixedly connected with a pressing block 123 located between the load ring 701 and the fixing ring 702, and the outer side of the slide bar 121 is sleeved with a spring 124 located between the pressing block 123 and the fixing ring 702. The installation of the mounting cap 122 facilitates the installation and removal of the elastic member 12, and the slide bar 121, the pressing block 123 and the spring 124 can cooperate with the compression sleeve to play a fixing role to prevent sliding due to pressure.

[0030] In this embodiment, if Figure 1 , Figure 5 and Figure 6 As shown, a threaded hole 801 is provided at the bottom of the force-applying rod 8, and a stud 101 threadedly connected to the threaded hole 801 is fixedly connected to the top of the pressure head 10. The arrangement of the threaded hole 801 and the stud 101 facilitates the replacement of pressure heads 10 of different sizes and the conduction of strength tests of different pressure areas.

[0031] In this embodiment, if Figure 1 and Figure 2 As shown, the bottom plate 1 and the test bench 2 as well as the test bench 2 and the fixed plate 3 are all fixedly connected with a support rod 13. The support rod 13 plays a supporting role. The bottom of the sand box 11 is fixedly connected with a sand discharge pipe 14 located inside the pressure box 9, and a valve is installed on the sand discharge pipe 14. The valve installed on the sand discharge pipe 14 is convenient for controlling the sand collection and release, and is convenient for weight control.

[0032] In this embodiment, if Figure 1 , Figure 2 and Figure 5 As shown, the test bench 2 and the sand box 11 are fixedly connected with a column 15 on the same side, and handles 901 are installed on both sides of the pressure box 9. The column 15 can fix the sand box 11, and the setting of the handle 901 can be used to lift the handle 901 to move the force rod 8 upward, so that the sleeve can be installed between the pressure head 10 and the placement table 5.

[0033] In this embodiment, if Figure 1-Figure 6 As shown, the working process of an electrical casing compression test device provided in this embodiment is as follows:

[0034] Step 1: Loosen the locking piece 703, rotate the fixing ring 702, use the carrying handle 901 to move the force rod 8 upward, install the sleeve between the pressing head 10 and the placing table 5, place both ends of the sleeve on the carrying ring 701, and then lock it through the cooperation of the locking piece 703 and the locking groove 704;

[0035] Step 2: Open the valve on the sand release pipe 14 to allow the sand to flow evenly from the sand box 11 into the pressure box 9. The pressure box 9 drives the force rod 8 downward, and the pressure head 10 applies pressure to the casing;

[0036] Step 3: Finally, the weight of the sand plus the weight of the force rod 8, the pressure box 9 and the pressure head 10 is measured to obtain the load-bearing weight.

[0037] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An electrical casing compression test device, characterized in that: The invention comprises a bottom plate (1), a test bench (2) is arranged above the bottom plate (1), a fixed plate (3) is arranged above the test bench (2), a bearing column (4) is fixedly connected to the top of the bottom plate (1) and passes through the test bench (2), a placement table (5) located at the top of the test bench (2) is fixedly connected to the top of the bearing column (4), sliding blocks (6) slidably mounted on the top of the test bench (2) are arranged on both sides of the bearing column (4), a pipe clamp (7) is fixedly connected to the top of the sliding block (6), a force rod (8) is slidably mounted through the top of the fixed plate (3), a pressure box (9) located above the fixed plate (3) is fixedly connected to the top of the force rod (8), a pressure head (10) located below the fixed plate (3) is threadedly connected to the top of the force rod (8), and a sand box (11) is arranged above the pressure box (9).

2. The electrical bushing compression test device according to claim 1, characterized in that: A slide groove (201) is provided on the top of the test bench (2), and a sliding block (601) which cooperates with the slide groove (201) is fixedly connected to the bottom of the sliding block (6).

3. The electrical bushing compression test device according to claim 1, characterized in that: The pipe clamp (7) comprises a bearing ring (701) fixedly connected to the top of the sliding block (6); a fixing ring (702) is rotatably connected to the top of the bearing ring (701) via a pin; and an elastic member (12) is slidably mounted on the top of the fixing ring (702).

4. The electrical bushing compression test device according to claim 3, characterized in that: One end of the carrying ring (701) is rotatably connected to a locking piece (703), and one end of the fixing ring (702) is provided with a locking groove (704) that cooperates with the locking piece (703).

5. The electrical bushing compression test device according to claim 3, characterized in that: The top of the carrying ring (701) is connected with a rubber block (705).

6. The electrical bushing compression test device according to claim 3, characterized in that: The elastic member (12) comprises a sliding rod (121) penetrating the fixing ring (702); the top of the sliding rod (121) is threadedly connected to a mounting cap (122) located above the fixing ring (702); the bottom of the sliding rod (121) is fixedly connected to a pressure block (123) located between the bearing ring (701) and the fixing ring (702); and the outer side of the sliding rod (121) is sleeved with a spring (124) located between the pressure block (123) and the fixing ring (702).

7. The electrical bushing compression test device according to claim 1, characterized in that: A threaded hole (801) is provided at the bottom of the force application rod (8), and a stud (101) threadedly connected to the threaded hole (801) is fixedly connected to the top of the pressure head (10).

8. The electrical bushing compression test device according to claim 1, characterized in that: The base plate (1) and the test bench (2), as well as the test bench (2) and the fixed plate (3) are all fixedly connected with support rods (13).

9. The electrical bushing compression test device according to claim 1, characterized in that: The bottom of the sand box (11) is fixedly connected to a sand discharge pipe (14) located inside the pressure box (9), and a valve is installed on the sand discharge pipe (14).

10. The electrical bushing compression test device according to claim 1, characterized in that: A column (15) is fixedly connected to the same side of the test bench (2) and the sand box (11), and handles (901) are installed on both sides of the pressure box (9).

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