Clamp for detecting cracking performance of PE (Poly Ethylene) soft belt

Abstract

The utility model discloses a clamp for detecting the cracking performance of a PE (Poly Ethylene) soft belt, and relates to the technical field of PE soft belt detection clamps. The device comprises a fixed support and a movable support, two first racks are arranged on the upper side of the fixed support, a transmission rod is rotatably matched in the movable support, and one ends of the first racks extending into the movable support are meshed with the transmission rod. After the fixed support is fixed, the soft belt is inserted between the fixed support and the movable support, the adjusting handle is rotated, the bolt adjusts the position of the limiting block, the second rack is pushed to slide to drive the transmission rod to rotate, and the transmission rod rolls on the first rack in a meshed mode to drive the movable support to move towards the fixed support to extrude the soft belt. When the positioning handle bolt slides to the positioning groove, the positioning handle bolt is rotated to be screwed into the lower part of the positioning groove, so that the gliding position of the movable bracket is conveniently positioned, the soft belt is continuously extruded, and the gliding position of the movable bracket is adjusted by adjusting the position of the limiting block, so that the extrusion detection of the soft belts with different specifications is conveniently adapted.

Description

Technical Field

[0001] This utility model belongs to the field of PE flexible strip testing fixtures, specifically, it relates to a fixture for testing the cracking performance of PE flexible strips. Background Technology

[0002] As an important component of water-saving irrigation pipe network systems, the performance of PE flexible tape for irrigation largely determines the effectiveness of water-saving irrigation and increased production and income.

[0003] Chinese patent CN218239589U discloses a fixture for testing the cracking performance of PE soft strip. The PE soft strip is placed between a fixed support and a movable support. Then, a rotating rod is rotated, which drives the extrusion plate to rotate. The extrusion plate extrudes the synchronous plate, which in turn drives the sliding rod to move. The sliding rod moves the extrusion block, which in turn extrudes the fixed block. This causes the fixed support and the movable support to move closer together to clamp the PE soft strip. After the test is completed, the fixture is used to test the cracking performance of PE soft strip.

[0004] However, the aforementioned fixture for testing the cracking performance of PE soft strip uses an extrusion disc to squeeze the fixed and moving supports closer together to squeeze the PE soft strip. The rear end face of the extrusion disc rotates and fits with the synchronous plate to position the extrusion disc after rotation. This results in the fixed and moving supports squeezing the same distance each time, causing the fixture to only be suitable for testing a single specification of PE soft strip, thus reducing the fixture's adaptability.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a fixture for testing the cracking performance of PE soft strip.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A fixture for testing the cracking performance of PE flexible strip includes a fixed support and a movable support. The fixed support has two first racks on its upper side. A transmission rod is rotatably fitted inside the movable support. One end of the first rack extends into the movable support and meshes with the transmission rod. A second rack that meshes with the transmission rod is slidably fitted inside the movable support. A positioning handle bolt is threadedly fitted on the upper side of the second rack. A limit block is slidably fitted inside the movable support. A positioning groove corresponding to the positioning handle bolt is provided on the upper side of the limit block. An adjustment handle bolt that is threadedly fitted to the limit block is rotatably fitted inside the movable support.

[0009] Optionally, the upper side of the moving bracket is provided with a guide hole corresponding to the first rack, the first rack is slidably fitted in the guide hole, the guide hole is provided with a flared groove on the inner wall, and the first rack is provided with a guide protrusion on the outer side, the guide protrusion is slidably fitted in the flared groove.

[0010] Optionally, the moving bracket is provided with two connecting plates, and the transmission rod is rotatably engaged with the two connecting plates. The transmission rod is provided with two first gears that mesh with the two first racks respectively, and the transmission rod is provided with a second gear that meshes with the second rack.

[0011] Optionally, a guide channel is provided on one side of the moving bracket, and the second rack is slidably engaged in the guide channel. The guide channel has a cross-shaped channel structure, the second rack has a cross-shaped rack structure, and a handle is provided at one end of the second rack.

[0012] Optionally, the bottom surface of the inner wall of the moving bracket is provided with a T-shaped guide slide, the limiting block is a T-shaped block structure, the limiting block slides in the T-shaped guide slide, a bearing is embedded on one side of the moving bracket, a smooth curved surface is provided on the outer side of one end of the adjusting handle bolt, and one end of the adjusting handle bolt is fixed in the bearing.

[0013] Optionally, the upper side of the limiting block is provided with a notch, which is connected to the upper part of the positioning groove.

[0014] Optionally, the bottom surface of the inner wall of the movable bracket is provided with a mounting groove, and a scale is provided in the mounting groove, with the limit block corresponding to the scale.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0016] After fixing the fixed bracket, the soft belt is inserted between the fixed bracket and the moving bracket. The position of the limiting block is adjusted by rotating the adjusting handle bolt, which pushes the second rack to slide and drive the transmission rod to rotate. The transmission rod meshes and rolls on the first rack, causing the moving bracket to move towards the fixed bracket and squeeze the soft belt. When the positioning handle bolt slides to the positioning groove, the positioning handle bolt is rotated and screwed into the lower part of the positioning groove to facilitate positioning the downward position of the moving bracket and continuously squeeze the soft belt. By adjusting the position of the limiting block, the downward position of the moving bracket is adjusted, thus facilitating the testing of soft belts of different specifications.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0021] Figure 3 This is a bottom view of an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the second rack structure according to an embodiment of the present invention;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] Fixed bracket 1, first rack 101, guide protrusion 102, movable bracket 2, adjusting handle bolt 200, transmission rod 201, second rack 202, positioning handle bolt 203, limit block 204, positioning groove 205, guide hole 206, flared groove 207, connecting plate 208, first gear 209, second gear 210, guide channel 211, handle 212, T-shaped guide slide 213, notch 214, scale 215.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-4 As shown, this embodiment provides a fixture for testing the cracking performance of PE soft strips, including a fixed support 1 and a movable support 2. Both the fixed support 1 and the movable support 2 are U-shaped strip structures. The fixed support 1 has two first racks 101 on its upper side. A transmission rod 201 is rotatably fitted inside the movable support 2. One end of the first rack 101 extends into the movable support 2 and meshes with the transmission rod 201. A second rack 202 that meshes with the transmission rod 201 is horizontally slidably fitted inside the movable support 2. A positioning handle bolt 203 is threadedly fitted on the upper side of the second rack 202. A limit block 204 is slidably fitted inside the movable support 2. A positioning groove 205 corresponding to the positioning handle bolt 203 is provided on the upper side of the limit block 204. An adjusting handle bolt 200 that is threadedly fitted to the limit block 204 is rotatably fitted inside the movable support 2.

[0028] After fixing the fixed bracket 1, the soft belt is inserted between the fixed bracket 1 and the moving bracket 2. The position of the limiting block 204 is adjusted by rotating the adjusting handle bolt 200, which pushes the second rack 202 to slide and drive the transmission rod 201 to rotate. The transmission rod 201 engages and rolls on the first rack 101, causing the moving bracket 2 to move towards the fixed bracket 1 and squeeze the soft belt. When the positioning handle bolt 203 slides to the positioning groove 205, the positioning handle bolt 203 is rotated and screwed into the lower part of the positioning groove 205 to facilitate positioning the downward position of the moving bracket 2 and continuously squeeze the soft belt. By adjusting the position of the limiting block 204, the downward position of the moving bracket 2 is adjusted, which facilitates the adaptation to the compression testing of soft belts of different specifications.

[0029] Please see Figure 1 As shown, the movable support 2 in this embodiment has a guide hole 206 on its upper side corresponding to the first rack 101. The first rack 101 is slidably fitted in the guide hole 206. The guide hole 206 has a flared groove 207 on its inner wall and a guide protrusion 102 on its outer side. The guide protrusion 102 is slidably fitted in the flared groove 207, which facilitates guiding the movable support 2 to slide on the first rack 101 through the guide hole 206, thereby improving the stability of the movable support 2 sliding down. By setting the flared groove 207 and the guide protrusion 102, the stability of the movable support 2 sliding down is further improved.

[0030] Please see Figure 1 As shown, the movable support 2 in this embodiment is provided with two connecting plates 208. The transmission rod 201 is rotatably engaged with the two connecting plates 208. The transmission rod 201 is provided with two first gears 209 that mesh with the two first racks 101 respectively. The transmission rod 201 is provided with a second gear 210 that meshes with the second rack 202, so that the second rack 202 can drive the second gear 210 to rotate, thereby driving the transmission rod 201 and the first gears 209 to rotate. The first gears 209 mesh and roll on the first racks 101, driving the movable support 2 to move towards the fixed support 1 to compress the soft belt.

[0031] Please see Figure 1-2 As shown, the movable bracket 2 in this embodiment is provided with a guide channel 211 on one side. The second rack 202 is slidably engaged in the guide channel 211. The guide channel 211 is a cross-shaped channel structure, and the second rack 202 is a cross-shaped strip structure. One end of the second rack 202 is provided with a handle 212, which facilitates pushing the second rack 202 to slide through the handle 212 and guiding the second rack 202 to slide through the guide channel 211.

[0032] Please see Figure 1-2As shown, the bottom surface of the inner wall of the movable bracket 2 in this embodiment is provided with a T-shaped guide slide 213. The limiting block 204 is a T-shaped block structure. The limiting block 204 is slidably fitted in the T-shaped guide slide 213. A bearing is embedded on one side of the movable bracket 2. A smooth curved surface is provided on the outer side of one end of the adjusting handle bolt 200. One end of the adjusting handle bolt 200 is fixed in the bearing, which facilitates the sliding of the limiting block 204 through the T-shaped guide slide 213. The bearing improves the stability of the rotation of the adjusting handle bolt 200.

[0033] Please see Figure 2 As shown, the upper side of the limiting block 204 in this embodiment is provided with a notch 214. The notch 214 is connected to the upper part of the positioning groove 205, so that the positioning handle bolt 203 can slide through the notch 214 into the positioning groove 205 and block the movement of the first rack 101, thus limiting the downward sliding distance of the moving bracket 2. The positioning handle bolt 203 is rotated and screwed into the lower part of the positioning groove 205 to facilitate the positioning of the downward sliding position of the moving bracket 2.

[0034] Please see Figure 1 As shown, the bottom surface of the inner wall of the movable bracket 2 in this embodiment is provided with an installation groove, and a scale 215 is provided in the installation groove. The limiting block 204 corresponds to the scale 215, so that the adjustment distance of the limiting block 204 can be viewed through the scale 215, thereby determining the distance of the movable bracket 2 sliding down.

[0035] Working principle: After fixing the fixed bracket 1, insert the soft belt between the fixed bracket 1 and the moving bracket 2. Rotate the adjusting handle bolt 200 to adjust the position of the limiting block 204. Push the second rack 202 to slide through the handle 212. The second rack 202 drives the second gear 210 to rotate, which in turn drives the transmission rod 201 and the first gear 209 to rotate. The first gear 209 meshes and rolls on the first rack 101, causing the moving bracket 2 to move towards the fixed bracket 1 and squeeze the soft belt. The positioning handle bolt 203 slides into the positioning groove 205 through the notch 214 and blocks the movement of the first rack 101, limiting the downward distance of the moving bracket 2. Rotate the positioning handle bolt 203 to screw it into the lower part of the positioning groove 205 to facilitate positioning the downward position of the moving bracket 2 and continuously squeeze the soft belt. By adjusting the position of the limiting block 204, the downward position of the moving bracket 2 can be adjusted, thus facilitating the testing of soft belts of different specifications.

[0036] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All electrical appliances in this utility model are powered by an external power source or a built-in battery. No restrictions are placed on the model or specific type of any electrical appliance in this utility model. Those skilled in the art can clearly identify the applicable electrical appliance model, specific type, and power supply method based on common knowledge in the field.

[0037] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A clamp for detecting a cracking property of a PE soft tape, characterized by, The utility model relates to a kind of adjustable support, including: Fixed support (1), movable support (2), the upper side of fixed support (1) is equipped with two first rack (101), movable support (2) is rotatably cooperated with transmission rod (201), first rack (101) is inserted into movable support (2) one end and is engaged with transmission rod (201), movable support (2) is slidably cooperated with the second rack (202) engaged with transmission rod (201) in, the upper side of second rack (202) is threadedly cooperated with positioning handle bolt (203), movable support (2) is slidably cooperated with limiting block (204) in, the upper side of limiting block (204) is equipped with the positioning slot (205) corresponding with positioning handle bolt (203), movable support (2) is rotatably cooperated with the adjusting handle bolt (200) threadedly cooperated with limiting block (204) in.

2. The clamp for detecting cracking performance of a PE soft belt according to claim 1, characterized in that, The upper side of movable support (2) is equipped with the guide hole (206) corresponding with first rack (101), and first rack (101) is slidably cooperated in guide hole (206).

3. The clamp for detecting cracking performance of a PE soft tape according to claim 2, characterized in that, The opposite inner wall of guide hole (206) is equipped with flared groove (207), and the opposite outer side of first rack (101) is equipped with guide protrusion (102), and guide protrusion (102) is slidably cooperated in flared groove (207).

4. The clamp for detecting cracking performance of a PE soft tape according to claim 1, wherein Movable support (2) is equipped with two connecting plates (208) in, transmission rod (201) is rotatably cooperated on two connecting plates (208), and transmission rod (201) is equipped with two first gears (209) engaged with two first rack (101) respectively on, and transmission rod (201) is equipped with the second gear (210) engaged with second rack (202) on.

5. The clamp for detecting cracking performance of a PE soft tape according to claim 1, wherein One side of movable support (2) is equipped with guide channel (211), and second rack (202) is slidably cooperated in guide channel (211), and guide channel (211) is cross-shaped channel structure, and second rack (202) is cross-shaped strip structure, and one end of second rack (202) is equipped with handle (212).

6. The clamp for detecting cracking performance of a PE soft tape according to claim 1, wherein The inner wall bottom surface of movable support (2) is equipped with T-shaped guide slide (213), and limiting block (204) is T-shaped block structure, and limiting block (204) is slidably cooperated in T-shaped guide slide (213), and one side of movable support (2) is embedded with bearing, and the outer side of one end of adjusting handle bolt (200) is equipped with smooth curved surface, and one end of adjusting handle bolt (200) is fixed in bearing.

7. The clamp for detecting cracking performance of a PE soft tape according to claim 1, wherein The upper side of limiting block (204) is equipped with notch (214), and notch (214) is communicated with the upper portion of positioning slot (205).

8. The clamp for detecting cracking performance of a PE soft tape according to claim 1, wherein The inner wall bottom surface of movable support (2) is equipped with mounting groove, and mounting groove is equipped with scale (215) in, and limiting block (204) corresponds with scale (215).

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