Short single column test bed

Abstract

The utility model discloses a short single column test bed, which overcomes the defect that a short single column cannot be subjected to a pressurizing test by welding the short single column test bed, and can simulate the use environment of an underground single column without vertically placing the single column, so that the pressurizing test is more convenient and safer. The funnel at the bottom can recycle and reuse emulsified liquid used in the test, meanwhile, four clamping heads at the bottom of the single column are placed in clamping grooves, an L-shaped fixing plate and a protection plate are used in a matched mode, the single column can be effectively clamped and fixed, in addition, the auxiliary pressing device can further press the single column, the single column is prevented from bouncing in the test process, and the test efficiency is improved. The overall structure of the device is more stable, and the improvements are beneficial to reducing vibration and displacement of the test bed in the test process, so that the test precision and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of monomer column test bench equipment, in particular to a short monomer column test bench. Background Art

[0002] During the period when the comprehensive mining working face passes through the structure, short single columns are needed to manage the roof. Single columns with specifications of 3.8m-4.5m are usually used for support underground. However, according to the requirements of the underground team, special short single columns with lengths of 2.8-3m are needed for support. The size of the modified short single columns has become shorter, and the original test bench cannot meet the requirements of the modified single column test. At the same time, the original vertical test bench cannot effectively compress the single column, resulting in unstable data during the test. In addition, the lack of effective liquid collection design causes liquid to pollute the environment or cannot be effectively collected and treated. Utility Model Content

[0003] The purpose of the utility model is to provide a short single column test bench to solve the problem that the size of the short single column becomes shorter, the original test bench cannot meet the requirements of the modified single column test, and at the same time, the original vertical test bench cannot effectively compress the single column, resulting in unstable data during the test. In addition, the lack of effective liquid collection design causes the liquid to pollute the environment or cannot be effectively collected and treated.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a short single-column test bench, comprising a test bench, a protective plate, a placement groove and an auxiliary clamping device, wherein the four corners of the bottom end of the test bench are fixedly connected with support columns, the test bench is a rectangular groove body welded from I-beams, a baffle is fixedly connected with the top front end of the test bench, the baffle and the rectangular groove body constitute an end protection groove, a clamping groove is provided at the bottom of the rear end of the test bench for placing the bottom of the single column in the clamping groove, a reinforcing rib is welded with a reinforcing rib in the middle of the test bench, the reinforcing rib divides the test bench into two placement grooves, L-shaped fixing blocks are correspondingly fixedly connected to the two side walls of the placement groove, the two L-shaped fixing blocks constitute a slide groove, the protective plate is slidably connected to the slide groove, the protective plate is connected with an auxiliary clamping device, arc-shaped fixing plates are evenly distributed in the placement groove, and the two sides of the arc-shaped fixing plate are fixedly connected to the two side walls of the placement groove.

[0005] Preferably, a water collection hole is provided on the test bench.

[0006] Preferably, slide grooves are provided on the left and right sides of the bottom end of the test bench, and a water collecting box is fixedly connected to the slide grooves.

[0007] Preferably, the water collection box has a depth of 30 layers and is used to collect the emulsion in the monomer column after the test is completed.

[0008] Preferably, the auxiliary clamping device includes a shell, a knob, a gear, a rack and a clamping block. The shell is fixedly connected to the protective plate, a gear is fixedly connected inside the shell, a rack is meshed on one side of the gear, a knob is fixedly connected to the top of the gear, and a clamping block is fixedly connected under the rack for auxiliary clamping of the monomer column.

[0009] Preferably, bolt limiting plates are welded at the bottom ends of the rear side slots of the test bench respectively corresponding to the protective slots, and limiting slots are provided at the four corners of the bolt limiting plates.

[0010] Preferably, the distance between each arc-shaped fixing plate is 40 cm.

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

[0012] By welding a short single column test bench, the deficiency that short single columns cannot be used for pressure tests is filled, and the use environment of underground single columns can be simulated without placing the single columns upright, making the pressure test more convenient and safer. The funnel at the bottom can recycle and reuse the emulsion after the test. At the same time, the four clamps at the bottom of the single column are placed in the card slots, and the L-shaped fixing plates and protective plates are used in combination to effectively clamp and fix the single column. In addition, the auxiliary clamping device can further clamp the single column to prevent it from bouncing up during the test, making the overall structure of the device more stable. These improvements help to reduce the vibration and displacement of the test bench during the test, thereby improving the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall front structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the auxiliary pressing device of the utility model.

[0016] In the figure: 1. test bench; 201. support column; 202. reinforcing rib; 203. L-shaped fixing block; 204. protective plate; 205. auxiliary clamping device; 206. arc-shaped fixing plate; 3. bolt limit plate; 4. water collection hole; 5. water collection box. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 according to specific circumstances.

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1: Please refer to Figure 1-2The utility model provides an embodiment: a short single column test bench, including a test bench 1, a protective plate 204, a placement groove and an auxiliary clamping device 205. The four corners of the bottom end of the test bench 1 are fixedly connected with support columns 201. The support columns 201 are fixedly connected to the four corners of the bottom end of the test bench 1 to provide additional support and stability, increase the overall stability of the test bench 1, and the test bench 1 provides the basic structure and support of the entire test bench 1, so that it can stably carry the single column and related devices. The rectangular frame welded by I-beams has sufficient strength and stability and is suitable for bearing the requirements of pressure tests. The test bench 1 is a rectangular trough body welded by I-beams, and the rectangular frame is made of 11# I-beams. A 2*1m square frame is made. A baffle is fixedly connected to the front end of the top of the test bench 1. The baffle and the rectangular slot form an end protection slot. The single column is placed in the protection slot to prevent the single column from bouncing up. A slot is set at the bottom of the rear end of the test bench to place the bottom of the single column in the slot. The baffle and the slot are used to position and fix the single column. The reinforcing rib 202 and the placement slot enhance the structural stability. A reinforcing rib 202 is welded in the middle of the test bench 1. The reinforcing rib 202 strengthens the structure of the test bench 1 to form a placement slot to support the connection of the L-shaped fixing block. The reinforcing rib 202 divides the test bench 1 into two placement slots. The placement slot is used to reserve a test space for a single column. L-shaped fixing blocks are fixedly connected to the two side walls of the placement slot. 203, two L-shaped fixing blocks 203 form a slide groove, and the protective plate 204 is slidably connected to the slide groove. The L-shaped fixing block 203 is set up vertically, so that a slide groove is reserved at the bottom to cooperate with the protective plate 204, fix and support the top of the single column to provide a reliable fixing device to prevent the single column from moving or tilting during the test, and the protective plate 204 is connected to an auxiliary clamping device 205. The protective plate 204 provides fixed support to ensure the safety and stability of the single column during the test. Arc-shaped fixing plates 206 are evenly distributed in the placement groove. The arc-shaped fixing plates 206 are used to support the placement of the single column. The two sides of the arc-shaped fixing plates 206 are fixedly connected to the two side walls of the placement groove. A water collection hole 4 is opened on the test bench 1. The water collection hole 4 is used to flow the emulsion in the monomer column after the test is completed into the water collecting box 5. Slide grooves are provided on the left and right sides of the bottom end of the test bench 1. The water collecting box 5 is fixedly connected to the slide groove. The depth of the water collecting box 5 is 30 layers. It is used to collect the emulsion in the monomer column after the test is completed. Bolt limit plates 3 are welded at the bottom ends of the rear side grooves of the test bench 1 corresponding to the protective grooves. Limit holes are provided at the four corners of the bolt limit plates 3. During the test, after the monomer column is placed, a certain distance is left between the monomer column and the rear side slot of the test bench 1. After the monomer column inspection begins, the bottom end of the monomer column is stuck in the slot. After the support legs are extended, the four clamps at the bottom are fixed through the limit holes on the bolt limit plates 3. The spacing between each arc-shaped fixing plate 206 is 40cm.When in use, first place the single column on the arc-shaped fixing plate 206 on the placement groove, then slide the protective plate 204 and cooperate with the L-shaped fixing block 203 to clamp the single column. At the same time, the four clamps at the bottom of the single column are clamped in the clamping groove to prevent the single column from shaking during the test. At the same time, the single column support legs are extended outward, and after extending to the full support length, the single column is pressed and maintained for the test. At the same time, the pressure of the single column is measured to monitor changes during the test and provide real-time pressure information to help researchers better understand the test situation.

[0022] Example 2: Please refer to Figure 3 , based on Example 1, it also has the following structure:

[0023] The auxiliary clamping device 205 includes an outer shell, a knob, a gear, a rack and a clamping block. The outer shell is fixedly connected to the protective plate 204. A gear is fixedly connected inside the outer shell. A rack is meshed on one side of the gear. A knob is fixedly connected to the top of the gear. A clamping block is fixedly connected under the rack to assist in clamping the single column. When in use, the knob is turned, and the knob drives the gear to rotate, while the meshed rack is raised or pressed down, and the clamping block is pressed down to further clamp the single column.

[0024] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A short single column test bench, characterized in that: The invention comprises a test bench (1), a protective plate (204), a placement groove and an auxiliary clamping device (205), wherein the four corners of the bottom end of the test bench (1) are fixedly connected to support columns (201), the test bench (1) is a rectangular groove body welded from I-beams, a baffle is fixedly connected to the front end of the top of the test bench (1), the baffle and the rectangular groove body form an end protection groove, a clamping groove is arranged at the bottom of the rear end of the test bench (1) for placing the bottom of the single column in the clamping groove, a reinforcing rib (202) is welded to the middle of the test bench (1), the reinforcing rib (202) divides the test bench (1) into two placement grooves, L-shaped fixing blocks (203) are correspondingly fixedly connected to the two side walls of the placement groove, the two L-shaped fixing blocks (203) form a slide groove, the protective plate (204) is slidably connected to the slide groove, the protective plate (204) is connected to the auxiliary clamping device (205), arc-shaped fixing plates (206) are evenly distributed in the placement groove, and the two sides of the arc-shaped fixing plates (206) are fixedly connected to the two side walls of the placement groove.

2. A short single column test bench according to claim 1, characterized in that: A water collection hole (4) is provided on the bottom surface of the placement groove of the test bench (1).

3. A short single column test bench according to claim 1, characterized in that: The left and right sides of the bottom of the test bench (1) are provided with slide grooves, and a water collecting box (5) is fixedly connected to the slide grooves.

4. A short single column test bench according to claim 3, characterized in that: The water collection box (5) has a depth of 30 layers and is used to collect the emulsion in the monomer column after the test is completed.

5. The short single column test bench according to claim 1, characterized in that: The auxiliary pressing device (205) comprises a housing, a knob, a gear, a rack and a pressing block, wherein the housing is fixedly connected to the protective plate (204), a gear is fixedly connected inside the housing, a rack is meshed on one side of the gear, a knob is fixedly connected to the top of the gear, and a pressing block is fixedly connected below the rack, for auxiliary pressing of the monomer column.

6. The short single column test bench according to claim 1, characterized in that: Bolt limiting plates (3) are welded to the bottom ends of the rear side slots of the test bench (1) respectively corresponding to the protection slots, and limiting slots are provided at the four corners of the bolt limiting plates (3).

7. The short single column test bench according to claim 1, characterized in that: The distance between each arc-shaped fixing plate (206) is 40 cm.

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