Stone strength testing device

Abstract

The utility model relates to the technical field of stone strength testing, in particular to a stone strength testing device which comprises a main pipe, an impact rod and a spring I. The impact rod sequentially comprises a heavy rod, an extension rod and a baffle from bottom to top, the lower end of the heavy rod is pointed, and the diameter of the extension rod is smaller than that of the heavy rod and that of the baffle. The diameter of the inner cavity of the main pipe and the diameter of the opening in the lower end of the main pipe are larger than that of the heavy rod, and the diameter of the opening in the upper end of the main pipe is smaller than that of the baffle and larger than that of the extension rod; the lower end of the extension rod is connected with the heavy rod, and the upper end of the extension rod extends out of an upper end opening of the main pipe and then is connected with the baffle; the spring I is arranged on the extension rod between the upper end opening of the main pipe and the heavy rod. The testing device does not need power supply, can be carried about, and can be used for conveniently carrying out on-site strength testing on the large-size stone.

Description

Technical Field

[0001] The utility model relates to the technical field of stone strength testing, in particular to a stone strength testing device. Background Technique

[0002] Stones such as marble and granite can be used not only for architectural decoration but also for manufacturing the bases and beds of machine tools. The bed made of stone has higher stability compared with the traditional metal bed, will not deform or corrode due to temperature and humidity changes, has low requirements for the working environment, and reduces the use cost. However, the texture of the stone is uneven. When selecting stones, it is necessary to conduct a comprehensive inspection of the stones, and among them, strength testing is one of the most important items.

[0003] In the prior art, the invention patent with the authorization announcement number CN116296827B discloses a marble tile compressive strength testing device, including a device main body and a control console. One end of the device main body is provided with a first groove, and a plurality of lifting sliding grooves are arranged in the first groove. An elevating platform is arranged between the two lifting sliding grooves. One end of the elevating platform close to the control console is provided with a pressing mechanism. The inner wall of the first groove far from the elevating platform is provided with a plurality of guiding sliding rails, and a moving slider is arranged on the guiding sliding rails. One end of the moving slider close to the elevating platform is provided with a tile placing plate, and a rotating shutter is arranged at one end of the first groove close to the control console, which can apply axial pressure to the length and width of the tile without changing the test environment and conditions, and improve the accuracy of the compressive strength test.

[0004] In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art: most of the existing patented technologies are used to test small-volume stone samples and cannot test large-volume stones; the existing testing equipment is large in size and requires power supply, cannot be carried around, and is not convenient for on-site testing of stones. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present utility model develops a stone strength testing device, which does not require power supply, can be carried around, and can conveniently conduct on-site strength testing on large-volume stones.

[0006] The technical solution for the present utility model to solve the technical problem is as follows: An embodiment of the present utility model provides a stone strength testing device, which includes a main pipe, an impact rod, and a first spring. The impact rod sequentially includes a heavy rod, an extension rod, and a baffle from bottom to top. The lower end of the heavy rod is pointed. The diameter of the extension rod is smaller than that of the heavy rod and the baffle. The main pipe is a circular pipe with both ends open. The inner cavity and the diameter of the lower end opening of the main pipe are larger than the diameter of the heavy rod. The diameter of the upper end opening of the main pipe is smaller than the diameter of the baffle and larger than the diameter of the extension rod. The impact rod is arranged in the main pipe. The lower end of the extension rod is connected to the heavy rod, and the upper end extends out of the upper end opening of the main pipe and is connected to the baffle. The first spring is arranged on the extension rod between the upper end opening of the main pipe and the heavy rod.

[0007] As an optimization, tread rods are arranged on both sides of the lower end of the main pipe, and handles are arranged on both sides of the top end of the main pipe.

[0008] As an optimization, the testing device further includes a fixator, which includes an L-shaped rod, a third spring, and a plug. The L-shaped rod includes a horizontal cross bar and a vertical vertical bar. An installation plate is arranged on the handle. The L-shaped rod is installed on the installation plate through a rotating shaft. A limiting hole is arranged at the bottom of the cross bar. One end of the third spring is arranged in the limiting hole and the other end contacts the handle. The plug is arranged at the outer top of the vertical bar. A fixing hole is horizontally arranged on the extension rod, and the size of the fixing hole corresponds to that of the plug.

[0009] As an optimization, a plurality of fixing holes are arranged. The impact rod at different heights can be fixed to realize the testing of different impact forces.

[0010] As an optimization, the fixing holes are evenly arranged. The intensity of the impact force formed by the impact rod is evenly distributed.

[0011] As an optimization, a mark is arranged on the extension rod. The mark is based on the top opening of the main pipe. The mark shows the impact force. As the impact rod rises, the mark value leaking out of the top opening of the main pipe gradually increases.

[0012] As an optimization, the testing device further includes a top head and a second spring. A guide sleeve is further arranged at the lower end of the main pipe. The guide sleeve and the top head are circular pipes. The top head is arranged in the guide sleeve. The inner diameter of the top head is larger than the outer diameter of the heavy rod. A shoulder is arranged in the middle of the top head. The diameter of the shoulder is larger than the diameter of the lower end opening of the guide sleeve. The second spring is arranged on the top head between the shoulder and the main pipe.

[0013] The effects provided in the utility model content are only the effects of the embodiments, rather than all the effects of the utility model. The above technical solutions have the following advantages or beneficial effects:

[0014] 1. Pulling the impact rod upwards can compress spring 1. After releasing the impact rod, the impact rod impacts the stone at the lower opening of the main pipe under the action of the elastic force of spring 1 and its own gravity. The strength of the stone can be judged according to the impact condition of the stone. The test device does not require power supply and can be carried with you. It can conveniently perform on-site strength tests on large-volume stones.

[0015] 2. By setting a pedal and a handle on the main pipe, it is convenient to straighten and tighten the main pipe to ensure the reliability of the test results.

[0016] 3. After pulling the impact rod to a certain height, insert the plug into the fixing hole to fix the impact rod. Spring 3 can ensure that the plug does not fall out of the fixing hole. Pressing down the cross bar can release the impact rod for stone strength test. By setting the fixer, the position of the impact rod is fixed, which facilitates the smooth progress of the test.

[0017] 4. By setting the ram, when using it, first press down the test device to make the ram enter the guide sleeve completely, and then release the impact rod. The pressing process creates a certain pressure between the test device and the stone, avoiding the situation where the test device is separated from the stone due to excessive impact force of the impact rod, resulting in inaccurate test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of an impact rod in a state ready to be released according to an embodiment of the utility model.

[0019] Figure 2 This is a front view of the impact rod in a state ready to be released according to an embodiment of the utility model.

[0020] Figure 3 This is a front view of an impact rod in an embodiment of the utility model.

[0021] Figure 4 It is a left side view of the impact rod in a state ready to be released according to an embodiment of the utility model.

[0022] Figure 5 for Figure 4 Cross-sectional view along the AA direction.

[0023] Figure 6 for Figure 5 A partial enlarged view of the middle C area.

[0024] Figure 7 for Figure 5 A partial enlarged view of the D area in the middle.

[0025] Figure 8 This is a front view of the impact rod in a released state according to an embodiment of the utility model.

[0026] Figure 9Left view of the impact rod in the released state in one embodiment of the present utility model.

[0027] Figure 10 is Figure 9 A sectional view taken along the B-B direction.

[0028] Figure 11 is Figure 10 A partial enlarged view of region E in

[0029] Figure 12 is Figure 10 A partial enlarged view of region F in

[0030] Wherein: main pipe 1, impact rod 2, top head 3, retainer 4, first spring 5, second spring 6, tread rod 11, handle 12, guide sleeve 13, heavy rod 21, extension rod 22, baffle 23, fixing hole 24, L-shaped rod 41, third spring 43, plug 44. Specific embodiments

[0031] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific embodiments and in conjunction with its accompanying drawings.

[0032] Figures 1 to 12 One embodiment of the present utility model, as Figure 1 shown, a stone strength testing device, including main pipe 1, impact rod 2, first spring 5, as Figure 3 shown, the impact rod 2 from bottom to top is successively a heavy rod 21, an extension rod 22, and a baffle 23. The lower end of the heavy rod 21 is pointed, and the diameter of the extension rod 22 is smaller than the diameters of the heavy rod 21 and the baffle 23. The main pipe 1 is a circular pipe with both ends open. The inner cavity and the diameter of the lower end opening of the main pipe 1 are larger than the diameter of the heavy rod 21. The diameter of the upper end opening of the main pipe 1 is smaller than the diameter of the baffle 23 and larger than the diameter of the extension rod 22. The impact rod 2 is arranged in the main pipe 1. The lower end of the extension rod 22 is connected to the heavy rod 21, and the upper end extends out from the upper end opening of the main pipe 1 and is connected to the baffle 23. The first spring 5 is arranged on the extension rod 22 between the upper end opening of the main pipe 1 and the heavy rod 21.

[0033] Tread rods 11 are arranged on both sides of the lower end of the main pipe 1, and handles 12 are arranged on both sides of the top end of the main pipe 1. By arranging the tread rods 11 and the handles 12 on the main pipe 1, it is convenient to straighten and press the main pipe 1, ensuring the reliability of the test results.

[0034] As Figure 2 , Figure 6As shown, the test device also includes a fixture 4, which includes an L-shaped rod 41, a spring 3 43, and a plug 44. The L-shaped rod 41 includes a horizontal crossbar and a vertical vertical rod. The handle 12 is provided with a mounting plate, and the L-shaped rod 41 is mounted on the mounting plate through a rotating shaft. A limit hole is provided at the bottom of the crossbar, one end of the spring 3 43 is provided in the limit hole, and the other end is in contact with the handle 12. The plug 44 is provided at the outer top of the vertical rod, and a fixing hole 24 is transversely provided on the extension rod 22, and the size of the fixing hole 24 corresponds to the plug 44. After pulling the impact rod 2 to a certain height, the plug 44 is inserted into the fixing hole 24 to fix the impact rod 2, and the spring 3 43 can ensure that the plug 44 does not separate from the fixing hole 24. Pressing down the crossbar can release the impact rod 2 to perform a stone strength test. By providing the fixture 4, the position of the impact rod 2 is fixed, which facilitates the smooth progress of the test work. A plurality of fixing holes 24 are provided. Impact rods 2 of different heights can be fixed to achieve tests of different impact forces. The fixing holes 24 are evenly arranged. The impact force generated by the impact rod 2 is evenly distributed. The extension rod 22 is provided with a mark. The mark is based on the top opening of the main pipe 1, and the mark shows the impact force. As the impact rod 2 rises, the mark value leaking out of the top opening of the main pipe 1 gradually increases.

[0035] like Figure 7 As shown, the testing device also includes a plug 3 and a spring 6. A guide sleeve 13 is also provided at the lower end of the main pipe 1. The guide sleeve 13 and the plug 3 are in a circular tubular shape. The plug 3 is arranged in the guide sleeve 13. The inner diameter of the plug 3 is larger than the outer diameter of the weight rod 21. A shoulder is provided in the middle of the plug 3. The diameter of the shoulder is larger than the diameter of the opening at the lower end of the guide sleeve 13. The spring 6 is provided on the plug 3 between the shoulder and the main pipe 1.

[0036] like Figure 11 , Figure 12 As shown, when in use, the test device is first pressed down to allow the plunger 3 to enter the guide sleeve 13 completely, and then the cross bar is pressed down to release the impact rod 2. During the process of the plunger 3 entering the guide sleeve 13, a certain pressure is generated between the test device and the stone, which avoids the situation where the test device is separated from the stone due to excessive impact force of the impact rod 2, resulting in inaccurate test results.

[0037] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A stone strength testing device, characterized in that: It includes a main pipe (1), an impact rod (2), and a first spring (5). The impact rod (2) from bottom to top is successively a heavy rod (21), an extension rod (22), and a baffle (23). The lower end of the heavy rod (21) is pointed. The diameter of the extension rod (22) is smaller than the diameters of the heavy rod (21) and the baffle (23). The main pipe (1) is a round pipe with both ends open. The inner cavity and the diameter of the lower end opening of the main pipe (1) are larger than the diameter of the heavy rod (21). The diameter of the upper end opening of the main pipe (1) is smaller than the diameter of the baffle (23) and larger than the diameter of the extension rod (22). The impact rod (2) is arranged in the main pipe (1). The lower end of the extension rod (22) is connected to the heavy rod (21), and the upper end extends out of the upper end opening of the main pipe (1) and is then connected to the baffle (23). The first spring (5) is arranged on the extension rod (22) between the upper end opening of the main pipe (1) and the heavy rod (21).

2. The stone strength testing device according to claim 1, characterized in that, Footrests (11) are arranged on both sides of the lower end of the main pipe (1), and handles (12) are arranged on both sides of the top end of the main pipe (1).

3. The stone strength testing device according to claim 2, characterized in that, The testing device further includes a fixator (4). The fixator (4) includes an L-shaped rod (41), a third spring (43), and a plug (44). The L-shaped rod (41) includes a horizontal cross bar and a vertical vertical bar. A mounting plate is arranged on the handle (12). The L-shaped rod (41) is installed on the mounting plate through a rotating shaft. A limiting hole is arranged at the bottom of the cross bar. One end of the third spring (43) is arranged in the limiting hole and the other end contacts the handle (12). The plug (44) is arranged at the outer top of the vertical bar. A fixing hole (24) is horizontally arranged on the extension rod (22), and the size of the fixing hole (24) corresponds to that of the plug (44).

4. The stone strength testing device according to claim 3, characterized in that, A plurality of the fixing holes (24) are arranged.

5. The stone strength testing device according to claim 4, characterized in that, The fixing holes (24) are evenly arranged.

6. The stone strength testing device according to claim 4, characterized in that, Identifications are arranged on the extension rod (22).

7. The stone strength testing device according to claim 1, characterized in that, The testing device further includes a top head (3) and a second spring (6). A guide sleeve (13) is further arranged at the lower end of the main pipe (1). The guide sleeve (13) and the top head (3) are round pipes. The top head (3) is arranged in the guide sleeve (13). The inner diameter of the top head (3) is larger than the outer diameter of the heavy rod (21). A shoulder is arranged in the middle of the top head (3), and the diameter of the shoulder is larger than the diameter of the lower end opening of the guide sleeve (13). The second spring (6) is arranged on the top head (3) between the shoulder and the main pipe (1).

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