Field test device for rapidly testing peel strength of composite geomembrane

Abstract

The utility model provides a field test device for quickly testing the peel strength of a composite geomembrane, which relates to the technical field of composite geomembrane detection and comprises a test mechanism, the test mechanism comprises a digital display measurer, a connector is mounted at the connecting end of the digital display measurer, a rectangular hole is formed in the front surface of the connector, and the rectangular hole is communicated with the digital display measurer. A round rod is fixedly sleeved with the two-way worm, and two symmetrical clamps are slidably connected with the interior of the sliding groove. According to the utility model, the test mechanism is arranged, so that the peel strength of the composite civil engineering film can be detected on site, that is, the on-site construction progress is ensured to a certain extent, and the two clamps can move towards or opposite to each other under the cooperation of the two-way worm, the two auxiliary blocks, the connector, the rectangular hole, the round rod and the sliding chute, so that the peeling strength of the composite civil engineering film can be detected. Whether the composite geomembrane is qualified or not can be detected under the cooperation of the digital display measurer and a peel strength qualified value preset by the digital display measurer.

Description

Technical Field

[0001] The utility model relates to the technical field of composite geomembrane detection, in particular to a field test device for quickly testing the peeling strength of a composite geomembrane. Background Art

[0002] Composite geomembrane is a new type of geosynthetics made by combining geotextile and geomembrane through thermal bonding or adhesive bonding.

[0003] Existing composite geomembranes need to be tested for peel strength before use after production. Generally, the peel strength test of composite geomembranes requires sending samples to the laboratory for testing to determine whether their peel strength is qualified. Although this can tell the peel strength of the composite geomembrane and judge whether it is qualified, it affects the construction progress on site to a certain extent.

[0004] Therefore, it is necessary to propose a field test device for quickly testing the peeling strength of composite geomembrane. Utility Model Content

[0005] The utility model aims to solve the problem that the existing composite geomembrane peeling strength test in the prior art cannot be carried out on site, thus affecting the progress of on-site use to a certain extent, and proposes an on-site test device for quickly testing the peeling strength of the composite geomembrane.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a field test device for quickly testing the peeling strength of a composite geomembrane, comprising: a test mechanism, the test mechanism comprising a digital display measuring device, a connecting head is installed at the connecting end of the digital display measuring device, a rectangular hole is opened on the front surface of the connecting head, cylindrical holes are opened on both sides of the inner part of the rectangular hole, a bidirectional worm is arranged inside the rectangular hole, a slide groove is opened on the top of the connecting head, two symmetrical auxiliary blocks are slidably connected inside the slide groove, a round rod is fixedly sleeved inside the bidirectional worm, and two symmetrical clamps for clamping the test sample are slidably connected inside the slide groove.

[0007] Preferably, the bottom of the inner wall of the slide groove is connected to the top of the inner wall of the rectangular hole, and the teeth of the two auxiliary blocks are respectively meshed with the teeth at both ends of the bidirectional worm.

[0008] Preferably, the round rod is fixedly sleeved between the insides of the two cylindrical holes, and the bottoms of the two clips are respectively fixed to the surfaces of the two auxiliary blocks.

[0009] Preferably, a protective shell is provided on the outer surface of the digital display measuring device, and two sides of the inner wall of the protective shell are in contact with two sides of the digital display measuring device respectively.

[0010] Preferably, two clamping blocks are fixed on both sides of the inner wall of the protective shell, and clamping slots are provided on both sides of the digital display measuring device, and each of the clamping blocks is movably clamped in the inside of each clamping slot.

[0011] Preferably, the handle end of the digital measuring device is movably sleeved with an anti-slip sleeve, and the bottom of the anti-slip sleeve is on the same horizontal plane as the bottom of the handle end of the digital measuring device.

[0012] Preferably, a hand-tightening cover is threadedly connected to the bottom of the handle end of the digital display measuring instrument, and the upper side of the hand-tightening cover is in contact with the bottom of the anti-slip sleeve.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by setting up a test mechanism, the peeling strength of the composite geomembrane can be tested on site, that is, the construction progress on site is guaranteed to a certain extent. Through the cooperation of the bidirectional worm, two auxiliary blocks, the connecting head, the rectangular hole, the round rod and the slide groove, the two clamps can be moved in opposite directions or in opposite directions. Through the cooperation of the cylindrical hole and the round rod, the bidirectional worm can be stably rotated. Through the cooperation of the digital measuring device and the peeling strength qualified value set in advance by the digital measuring device, it can be detected whether the composite geomembrane is qualified.

[0015] 2. In the utility model, the protective shell can prevent the control button of the digital measuring instrument from being accidentally touched, thereby causing the digital measuring instrument to be accidentally started. The protective shell can be snap-fitted and fixed on the digital measuring instrument by the cooperation of the card slot and the card block. The anti-slip cover can be prevented from moving out of the handle end of the digital measuring instrument by the cooperation of the hand-tightening cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A stereoscopic diagram of a field test device for quickly testing the peeling strength of a composite geomembrane is provided for the utility model;

[0017] Figure 2 A partial stereogram of a field test device for quickly testing the peeling strength of a composite geomembrane proposed by the utility model;

[0018] Figure 3 The utility model provides a three-dimensional structural diagram of a bidirectional worm, a clamp, a round rod and an auxiliary block of an on-site test device for quickly testing the peeling strength of a composite geomembrane;

[0019] Figure 4 Another angle partial stereogram of a field test device for quickly testing the peeling strength of a composite geomembrane proposed by the utility model;

[0020] Figure 5A schematic diagram of the three-dimensional structure of a clamp and an auxiliary block of a field test device for quickly testing the peeling strength of a composite geomembrane is provided for the utility model;

[0021] Figure 6 The utility model provides a three-dimensional structural schematic diagram of a protective shell and a clamping block of an on-site test device for quickly testing the peeling strength of a composite geomembrane.

[0022] Legend: 1. Test mechanism; 101. Digital measuring device; 102. Connector; 103. Rectangular hole; 104. Cylindrical hole; 105. Bidirectional worm gear; 106. Slide groove; 107. Clip; 108. Round rod; 109. Auxiliary block; 2. Protective shell; 3. Block; 4. Slot; 5. Anti-slip sleeve; 6. Hand-tightened cover. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] like Figure 1-Figure 6As shown, the utility model provides a field test device for quickly testing the peeling strength of a composite geomembrane, comprising: a test mechanism 1, the test mechanism 1 comprises a digital display measuring device 101, a connecting head 102 is installed at the connecting end of the digital display measuring device 101, a rectangular hole 103 is provided on the front surface of the connecting head 102, cylindrical holes 104 are provided on both sides of the inner part of the rectangular hole 103, a bidirectional worm 105 is provided inside the rectangular hole 103, a slide groove 106 is provided on the top of the connecting head 102, two symmetrical auxiliary blocks 109 are slidably connected inside the slide groove 106, a round rod 108 is fixedly sleeved inside the bidirectional worm 105, two symmetrical clamps 107 for clamping the test sample are slidably connected inside the slide groove 106, the inner wall bottom of the slide groove 106 is connected to the inner wall top of the rectangular hole 103, and the two auxiliary blocks 109 are connected to the inner wall bottom of the slide groove 106. The teeth are respectively meshed with the teeth at both ends of the bidirectional worm 105, the round rod 108 is fixedly sleeved between the insides of the two cylindrical holes 104, the bottoms of the two clips 107 are respectively fixed to the surfaces of the two auxiliary blocks 109, the outer surface of the digital display measuring device 101 is provided with a protective shell 2, the inner wall sides of the protective shell 2 are respectively in contact with the two sides of the digital display measuring device 101, two clamping blocks 3 are fixed on both sides of the inner wall of the protective shell 2, both sides of the digital display measuring device 101 are provided with a clamping slot 4, each clamping block 3 is movably clamped in the inside of each clamping slot 4, the handle end of the digital display measuring device 101 is movably sleeved with an anti-slip sleeve 5, the bottom of the anti-slip sleeve 5 and the bottom of the handle end of the digital display measuring device 101 are on the same horizontal plane, the bottom of the handle end of the digital display measuring device 101 is threadedly connected with a hand-tightening cover 6, and the upper side of the hand-tightening cover 6 is in contact with the bottom of the anti-slip sleeve 5.

[0026] The effect achieved is that when it is necessary to conduct on-site testing of the peel strength of the composite geomembrane, the test device is first moved to the area where the composite geomembrane is placed, and then a representative composite geomembrane sample is selected according to relevant standards and specifications, and then one end of the selected composite geomembrane sample is first fixed, and then the two layers of material at the detection end of the composite geomembrane sample are first separated by a certain length, and then one of the layers of material at the detection end of the composite geomembrane is fixed again, and then the position of the fixed block 3 of the protective shell 2 is slightly bent and deformed, and at this time, the bent and deformed area of ​​the protective shell 2 will drive the block 3 connected thereto to move from the corresponding When all the card blocks 3 are completely removed from the corresponding card slots 4, the protective shell 2 can be removed from the digital display measuring device 101, and then the digital display measuring device 101 with the anti-slip cover 5 is held by hand to move the entire test device toward the other layer of material at the detection end of the composite geomembrane. When the two clips 107 of the test device are moved to the side of the other layer of material at the detection end of the composite geomembrane, the two cylindrical holes 104, the round rod 108 and the rectangular hole 103 are directly used to rotate the bidirectional worm 105. At this time, the rotating bidirectional worm 105 will directly rotate between the rectangular hole 103 and the slide slot 10 6, the two auxiliary blocks 109 meshing therewith move toward each other. At this time, the two auxiliary blocks 109 moving toward each other will directly drive the clamps 107 connected thereto to move. When the two clamps 107 moving toward each other fix the material on the other side of the detection end of the composite geomembrane sample, the rotation of the bidirectional worm 105 is stopped, and then the digital display measuring device 101 is turned on, and then the composite geomembrane peeling strength threshold (according to the qualified value of the composite geomembrane peeling strength) and the contact area value of the clamp 107 and the geomembrane are set, and then the entire test device is operated slowly and evenly to apply the peeling force, and then Observe the torque value displayed on the display screen of the digital measuring device 101 (the torque value at the moment when the two layers of materials begin to peel off). At the same time, the digital measuring device 101 will also obtain the peeling strength value of the composite geomembrane based on the recorded torque value, the contact area between the clamp 107 and the geomembrane and other parameters through the corresponding internal calculation formula or reference standard, and will also display it on the display screen of the digital measuring device 101. When the strength data of the peeling strength reaches the composite geomembrane peeling strength threshold value set in advance by the digital measuring device 101, and the two layers of material of the composite geomembrane are not completely separated, it means that the quality of the composite geomembrane is qualified, otherwise it is unqualified.

[0027] Working principle: When it is necessary to conduct on-site testing of the peel strength of the composite geomembrane, the test device is first moved to the area where the composite geomembrane is placed, and then a representative composite geomembrane sample is selected according to relevant standards and specifications. Then, one end of the selected composite geomembrane sample is fixed first, and then the two layers of material at the detection end of the composite geomembrane sample are separated by a certain length, and then one of the layers of material at the detection end of the composite geomembrane is fixed again, and then the position of the fixed block 3 of the protective shell 2 is slightly bent and deformed. At this time, the bent and deformed area of ​​the protective shell 2 will drive the block 3 connected to it from the corresponding card When all the blocks 3 are completely removed from the corresponding slots 4, the protective shell 2 can be removed from the digital measuring device 101, and then the digital measuring device 101 with the anti-slip cover 5 is held by hand to move the entire test device toward the other layer of material at the detection end of the composite geomembrane. When the two clips 107 of the test device are moved to the side of the other layer of material at the detection end of the composite geomembrane, the two cylindrical holes 104, the round rod 108 and the rectangular hole 103 are directly used to rotate the bidirectional worm 105. At this time, the rotating bidirectional worm 105 will directly rotate between the rectangular hole 103 and the slide slot 106. Under the cooperation of , the two auxiliary blocks 109 meshing with it move toward each other. At this time, the two auxiliary blocks 109 moving toward each other will directly drive the clamps 107 connected with them to move. When the two clamps 107 moving toward each other fix the material on the other side of the detection end of the composite geomembrane sample, the rotation of the two-way worm 105 is stopped, and then the digital display measuring device 101 is turned on, and then the composite geomembrane peeling strength threshold (according to the qualified value of the composite geomembrane peeling strength) and the contact area value of the clamp 107 and the geomembrane are set, and then the entire test device is operated slowly and evenly, the peeling force is applied, and then Observe the torque value displayed on the display screen of the digital measuring device 101 (the torque value at the moment when the two layers of materials begin to peel off). At the same time, the digital measuring device 101 will also obtain the peeling strength value of the composite geomembrane based on the recorded torque value, the contact area between the clamp 107 and the geomembrane and other parameters through the corresponding internal calculation formula or reference standard, and will also display it on the display screen of the digital measuring device 101. When the strength data of the peeling strength reaches the composite geomembrane peeling strength threshold value set in advance by the digital measuring device 101, and the two layers of material of the composite geomembrane are not completely separated, it means that the quality of the composite geomembrane is qualified, otherwise it is unqualified.

[0028] The digital display measuring device 101 is composed of the following parts:

[0029] Torque sensor: It is one of the core components of the digital display measuring instrument 101. It can detect the magnitude of the applied torque in real time and convert the torque signal into an electrical signal.

[0030] Data processing module: responsible for receiving and processing the electrical signals from the torque sensor and converting them into displayable torque values.

[0031] Display screen: It is used to intuitively display the current applied torque value and the corresponding peel strength value, so that the user can clearly understand the magnitude of the torque and the magnitude of the peel strength.

[0032] Power supply: provides the digital display measuring device 101 with the electric energy required for operation. Common power supplies include batteries or rechargeable batteries.

[0033] Control button: used to operate various functions of the digital display measuring instrument 101, such as power on, power off, unit switching, data clearing, etc.

[0034] Data storage module (available on some models): can store torque measurement data and peel strength data for subsequent query and analysis.

[0035] Among them, the protective shell 2 is made of plastic material, and the position of the connecting block 3 can be bent and deformed to a certain extent, that is, it is convenient for the block 3 to be moved out from the inside of the slot 4 or the block 3 and the slot 4 to be docked. At the same time, the bent and deformed protective shell 2 (the position of the connecting block 3) can automatically return to the initial position when no force is applied.

[0036] Among them, the digital display measuring device 101 is a prior art, and its working principle is a public technology. Its model can be selected according to actual conditions, and no further explanation is given here.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A field test device for quickly testing the peeling strength of composite geomembrane, characterized in that: include: A test mechanism (1), the test mechanism (1) comprising a digital display measuring device (101), a connecting head (102) being installed at a connecting end of the digital display measuring device (101), a rectangular hole (103) being provided on a front surface of the connecting head (102), cylindrical holes (104) being provided on both sides of the interior of the rectangular hole (103), a bidirectional worm (105) being provided inside the rectangular hole (103), a slide groove (106) being provided on the top of the connecting head (102), two symmetrical auxiliary blocks (109) being slidably connected inside the slide groove (106), a round rod (108) being fixedly sleeved inside the bidirectional worm (105), and two symmetrical clamps (107) for clamping a test sample being slidably connected inside the slide groove (106).

2. The field test device for rapid testing of composite geomembrane peeling strength according to claim 1 is characterized in that: The bottom of the inner wall of the slide groove (106) is connected to the top of the inner wall of the rectangular hole (103), and the teeth of the two auxiliary blocks (109) are respectively meshed with the teeth at both ends of the bidirectional worm (105).

3. The field test device for rapid testing of composite geomembrane peeling strength according to claim 1 is characterized in that: The round rod (108) is fixedly sleeved between the insides of the two cylindrical holes (104), and the bottoms of the two clamps (107) are respectively fixed to the surfaces of the two auxiliary blocks (109).

4. The field test device for rapid testing of composite geomembrane peeling strength according to claim 1 is characterized in that: The outer surface of the digital display measuring device (101) is provided with a protective shell (2), and two sides of the inner wall of the protective shell (2) are respectively in contact with two sides of the digital display measuring device (101).

5. The field test device for rapid testing of composite geomembrane peeling strength according to claim 4 is characterized in that: Two clamping blocks (3) are fixed on both sides of the inner wall of the protective shell (2), and clamping slots (4) are provided on both sides of the digital display measuring device (101), and each of the clamping blocks (3) is movably clamped in the interior of each clamping slot (4).

6. The field test device for rapid testing of composite geomembrane peeling strength according to claim 1 is characterized in that: The handle end of the digital display measuring device (101) is movably sleeved with an anti-slip sleeve (5), and the bottom of the anti-slip sleeve (5) is on the same horizontal plane as the bottom of the handle end of the digital display measuring device (101).

7. The field test device for rapid testing of composite geomembrane peeling strength according to claim 6 is characterized in that: The bottom of the handle end of the digital display measuring device (101) is threadedly connected with a hand-tightened cover (6), and the upper side of the hand-tightened cover (6) is in contact with the bottom of the anti-slip cover (5).

Images