A breathable test device for highly breathable multi-color fluororubber straps

Abstract

The present invention belongs to the technical field of watch strap testing equipment, and specifically is a breathability testing device for a highly breathable multi-color fluororubber watch strap, comprising an outer shell, a cross partition is fixedly installed inside the outer shell, the top of one side of the cross partition is set as a test high-pressure chamber, a test structure is fixedly connected in the test high-pressure chamber, the bottom of one side of the cross partition is set as a test low-pressure chamber, the top of the other side of the cross partition is set as a control high-pressure chamber, a control structure is fixedly connected in the control high-pressure chamber, a control low-pressure chamber is provided at the bottom of the other side of the cross partition, and the top and bottom ends of the outer shell are both sealed and clamped with covers; the present invention sets a control high-pressure chamber and a control low-pressure chamber as a reference to eliminate the influence of factors such as temperature on the test results, and when the transmission belt structure drives the chain stretching structure to move, the space occupied is unchanged, so it will not affect the air pressure, which is beneficial to improving the accuracy of the test results.

Description

Technical Field

[0001] The invention belongs to the technical field of watch strap testing equipment, and in particular relates to a breathability testing device for a highly breathable multi-color fluororubber watch strap. Background Art

[0002] Common fluororubber watch straps still have obvious deficiencies in air permeability, especially for multi-color fluororubber watch straps. In order to improve the air permeability and comfort of multi-color fluororubber watch straps, a highly breathable multi-color fluororubber watch strap has been developed. The high air permeability effect of the final product is used as the basic judgment to confirm whether its use effect can meet the requirements of market consumers. Therefore, it is necessary to test its air permeability.

[0003] Therefore, it is necessary to invent a highly breathable multi-color fluororubber strap breathable testing device to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention provides a highly breathable multi-color fluororubber watch strap air permeability testing device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a highly breathable multi-color fluororubber watchband air permeability testing device, comprising an outer shell, wherein a cross partition for dividing the interior of the outer shell into four cavities is fixedly installed inside the outer shell;

[0006] The four chambers include a test high-pressure chamber arranged at the top of one side of the cross partition, a test low-pressure chamber arranged at the bottom of one side of the cross partition, a control high-pressure chamber arranged at the top of the other side of the cross partition, and a control low-pressure chamber arranged at the bottom of the other side of the cross partition; a test structure is fixedly connected in the test high-pressure chamber, and a control structure is fixedly connected in the control high-pressure chamber;

[0007] The top and bottom ends of the outer shell are sealed with covers, and two high-precision air pressure sensors are fixedly installed on the inner walls of each cover. One high-precision air pressure sensor is arranged in each of the four cavities. An air pipe is fixedly plugged into the high-precision air pressure sensor. One end of the air pipe away from the high-precision air pressure sensor passes through the cover for connection with an external air pump device.

[0008] Optionally, the test structure comprises a test bench, on which a ventilation hole group is provided, and two ends of the ventilation hole group are respectively connected to the test high-pressure chamber and the test low-pressure chamber.

[0009] Optionally, two limit columns are fixedly provided at both ends of the test bench, two T-plates are symmetrically fixedly provided on the side of the limit columns away from the test bench, a transmission belt structure is fixedly installed between the two T-plates, the transmission belt structure is provided with an anti-slip transmission belt, a connecting groove is opened at the top of the anti-slip transmission belt, the anti-slip transmission belt is fixedly connected to a sleeve block through the connecting groove, and the sleeve block is fixedly connected to a chain stretching structure.

[0010] Optionally, the chain stretching structure includes a first pull rod fixedly connected to the sleeve block; two ends of the first pull rod respectively pass through two ends of the sleeve block and are fixedly connected to a first chain link, and a second pull rod is rotatably connected between the two first chain links; two ends of the second pull rod respectively pass through opposite sides of the two first chain links and are connected to a second chain link; a third pull rod is connected between the two second chain links, and the third pull rod is further connected to two third chain links between the two second chain links, and the two limiting posts are respectively arranged on the extension paths of the corresponding third chain links;

[0011] The two second chain links respectively interfere with the two T-plates.

[0012] Optionally, one end of the third chain link away from the third pull rod is fixedly connected to a clamping frame, and two clamping plates are provided on the clamping frame. A sliding groove is opened on one of the clamping plates close to the test bench, and a threaded barrel is slidably connected to the inner wall of the sliding groove. A fastening screw is connected to the inner thread of the threaded barrel, and the fastening screw can pass through the threaded barrel and abut against the other clamping plate.

[0013] Optionally, a camera facing the test bench is fixedly mounted on one side of the inner wall of the test high-pressure chamber, and a protective cover is provided on the outer side cover of the camera.

[0014] Optionally, wireless transmission components are provided inside the high-precision air pressure sensor and the camera.

[0015] Optionally, the control structure is composed of a plurality of model blocks that match the position, structure and volume of the test structure, wherein the model blocks that match the test bench do not have a ventilation hole group.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention uses the pressure difference method to perform air permeability test. During the test, the middle part of the unperforated watchband is fitted with the vent hole group on the test bench, and the two ends are clamped by two clamping frames respectively. When the transmission belt structure drives the chain stretching structure to slide in the direction close to the limit column by using the sleeve block, the chain link at one end of the chain stretching structure abuts the limit column and turns downward, thereby driving the clamping frame to follow the downward turn, thereby tightening the two ends of the unperforated watchband downward, so that the middle part of the unperforated watchband is tightly fitted with the top of the test bench, and then another unperforated watchband is placed in the control high-pressure chamber to complete the preliminary preparation work, and then the two covers are closed, and the test high-pressure chamber, the test low-pressure chamber, the control high-pressure chamber and the control low-pressure chamber are connected through the air pipe. After the pressure chambers are evacuated to vacuum, an equal amount of air is injected into the test high-pressure chamber and the control high-pressure chamber through the air pipe to make the air pressures of the two chambers equal. After waiting for a period of time, the air pressure readings in the test high-pressure chamber, the test low-pressure chamber, the control high-pressure chamber and the control low-pressure chamber are read out through a high-precision air pressure sensor, so as to calculate the air permeability of the unperforated watchband. The present invention sets the control high-pressure chamber and the control low-pressure chamber as a reference for the air pressure readings in the test high-pressure chamber and the test low-pressure chamber, thereby eliminating the influence of factors such as temperature on the test results. When the transmission belt structure drives the chain stretching structure to move, the space occupied is unchanged, so it will not affect the air pressure, which is conducive to improving the accuracy of the test results.

[0018] After testing the air permeability of the watch strap, the present invention starts the transmission belt structure, which drives the chain stretching structure to slide in a direction away from the limit column through the sleeve block, and then pulls the two ends of the watch strap through the clamping frame to stretch the watch strap to both sides, and captures the stretching or breaking image of the watch strap through the camera, so as to test the anti-pulling performance of the watch strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the test structure position of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross partition structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the chain stretching structure of the present invention;

[0024] Figure 5 The present invention Figure 4 A schematic diagram of the enlarged structure in the middle.

[0025] In the figure: 1. outer shell; 2. cross partition; 3. test high-pressure chamber; 4. test structure; 401. test bench; 402. air vent group; 403. limit column; 404. T-plate; 405. transmission belt structure; 406. anti-slip transmission belt; 407. sleeve block; 408. chain stretching structure; 409. clamping frame; 410. clamping plate; 411. slide groove; 412. threaded barrel; 413. fastening screw; 414. camera; 5. test low-pressure chamber; 6. control high-pressure chamber; 7. control structure; 701. model block; 8. control low-pressure chamber; 9. cover; 10. high-precision air pressure sensor; 11. air pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] The present invention provides Figure 1-5A breathability testing device for a highly breathable multi-color fluororubber strap is shown, comprising an outer shell 1, a cross partition 2 is fixedly installed inside the outer shell 1, the top of one side of the cross partition 2 is set as a test high-pressure chamber 3, a test structure 4 is fixedly connected to the test high-pressure chamber 3, the bottom of one side of the cross partition 2 is set as a test low-pressure chamber 5, the top of the other side of the cross partition 2 is set as a control high-pressure chamber 6, a control structure 7 is fixedly connected to the control high-pressure chamber 6, and a control low-pressure chamber 8 is provided at the bottom of the other side of the cross partition 2. The top and bottom ends of the outer shell 1 are both sealed and clamped with a cover 9, two high-precision air pressure sensors 10 are fixedly installed on the inner wall of the cover 9, an air pipe 11 is fixedly inserted on one side of the high-precision air pressure sensor 10, one end of the air pipe 11 passes through the cover 9, and its end matches the external air pump equipment.

[0030] The present invention utilizes the pressure difference method to test the air permeability of the watch strap. Specifically, after the preliminary preparation work is completed, the test high-pressure chamber 3, the test low-pressure chamber 5, the control high-pressure chamber 6 and the control low-pressure chamber 8 are evacuated through the air pipe 11, and then an equal amount of air is injected into the test high-pressure chamber 3 and the control high-pressure chamber 6 through the air pipe 11 to make the air pressures of the two chambers equal. After waiting for a period of time, the air pressure readings in the test high-pressure chamber 3, the test low-pressure chamber 5, the control high-pressure chamber 6 and the control low-pressure chamber 8 are read through the high-precision air pressure sensor 10, thereby calculating the air permeability of the unperforated watch strap.

[0031] Refer to the instruction manual Figure 2-3 The test structure 4 includes a test bench 401, on which a ventilation hole group 402 is opened, and two ends of the ventilation hole group 402 are connected to the test high-pressure chamber 3 and the test low-pressure chamber 5 respectively.

[0032] When testing the present invention, it is necessary to ensure that the middle part of the non-perforated watchband fits the test bench 401, and its surface covers the air hole group 402. To ensure the effect, vacuum grease can be applied to the sides of the bottom end of the non-perforated watchband to ensure that the non-perforated watchband fits tightly with the test bench 401.

[0033] Refer to the instruction manual Figure 3-5 Two limit columns 403 are fixedly provided at both ends of the test bench 401, a T-plate 404 is fixedly provided on one side of the limit column 403, a transmission belt structure 405 is fixedly installed between the two T-plates 404, an anti-slip transmission belt 406 is provided on the transmission belt structure 405, a connecting groove is opened at the top of the anti-slip transmission belt 406, the anti-slip transmission belt 406 is fixedly connected to a sleeve block 407 through the connecting groove, a chain stretching structure 408 is fixedly inserted at the top of the sleeve block 407, both sides of the chain stretching structure 408 are respectively slidably connected to the two T-plates 404, the chain stretching structure 408 is composed of a plurality of chain links, and the chain link at one end thereof extends out of the T-plate 404 to match the limit column 403.

[0034] When testing the air permeability of the non-perforated watchband, the present invention starts the transmission belt structure 405 to drive the sleeve block 407, and then drives the chain stretching structure 408 to slide in the direction close to the limiting column 403. At this time, the chain link at one end of the chain stretching structure 408 abuts the limiting column 403 and turns downward, thereby driving the clamping frame 409 to follow the downward turn, thereby tightening the two ends of the non-perforated watchband downward, so that the middle part of the non-perforated watchband is tightly fitted with the top of the test bench 401. Since the space occupied by the transmission belt structure 405 when driving the chain stretching structure 408 to move is unchanged, it will not affect the air pressure, which is conducive to improving the accuracy of the test result. When testing the stretchability of the non-perforated watchband, the transmission belt structure 405 is started to make the chain stretching structure 408 slide in the direction away from the limiting column 403, and then pull the two ends of the watchband through the clamping frame 409 to stretch the watchband to both sides, and capture the stretching picture or the broken picture of the watchband through the camera 414, so as to test the anti-pulling performance of the watchband.

[0035] Refer to the instruction manual Figure 2-5 One end of the chain stretching structure 408 is fixedly connected to a clamping frame 409, and two clamping plates 410 are provided on the clamping frame 409. A sliding groove 411 is opened on one of the clamping plates 410, and a threaded tube 412 is slidably connected to the inner wall of the sliding groove 411. A fastening screw 413 is connected to the inner thread of the threaded tube 412, and one end of the fastening screw 413 matches the other clamping plate 410.

[0036] When the present invention is in use, the two ends of the unperforated watchband are placed between the corresponding two clamping plates 410 respectively, and then the fastening screw 413 is rotated to make one end of the fastening screw 413 abut against the unperforated watchband to fix it. When in use, the slide groove 411 can be firstly slid to adjust the position of the screw fixing the watchband, so that it can adapt to watchbands of different widths.

[0037] Refer to the instruction manual Figure 2 A camera 414 is fixedly installed on one side of the inner wall of the test high-pressure chamber 3, the camera 414 faces the test bench 401, and a protective cover is provided on the outer side cover of the camera 414.

[0038] The present invention provides a protective cover to protect the camera 414, so as to prevent the camera 414 from being hit when the strap breaks.

[0039] Refer to the instruction manual Figure 2-3 The high-precision air pressure sensor 10 and the camera 414 are both equipped with wireless transmission components, which can transmit data to an external processing device. The model of the high-precision air pressure sensor 10 is HP303B.

[0040] Refer to the instruction manual Figure 2-3The control structure 7 is composed of a plurality of model blocks 701 that match the position, shape and volume of the test structure 4, wherein the model block 701 that matches the test bench 401 does not have a ventilation hole group 402.

[0041] When testing the air permeability of the watchband, the present invention places a piece of the same watchband into the control high-pressure chamber 6 so that the space occupied by the control structure 7 is as consistent as possible with that of the test structure 4, thereby reducing the impact on the test result.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A highly breathable multi-color fluororubber watchband air permeability testing device, comprising an outer shell (1), characterized in that: A cross partition (2) is fixedly installed inside the outer shell (1) for dividing the interior of the outer shell (1) into four cavities; The four chambers include a test high-pressure chamber (3) arranged at the top of one side of the cross partition (2), a test low-pressure chamber (5) arranged at the bottom of one side of the cross partition (2), a control high-pressure chamber (6) arranged at the top of the other side of the cross partition (2), and a control low-pressure chamber (8) arranged at the bottom of the other side of the cross partition (2); a test structure (4) is fixedly connected to the inside of the test high-pressure chamber (3), and a control structure (7) is fixedly connected to the inside of the control high-pressure chamber (6); The top and bottom ends of the outer shell (1) are respectively sealed with a cover (9), and two high-precision air pressure sensors (10) are respectively fixedly mounted on the inner wall of each of the covers (9), and each of the four cavities is provided with a high-precision air pressure sensor (10); an air pipe (11) is fixedly plugged into the high-precision air pressure sensor (10); an end of the air pipe (11) away from the high-precision air pressure sensor (10) passes through the outside of the cover (9) for connection with an external air pump device; The test structure (4) comprises a test bench (401), on which a ventilation hole group (402) is provided, and two ends of the ventilation hole group (402) are respectively connected to the test high-pressure chamber (3) and the test low-pressure chamber (5); Two limiting columns (403) are fixedly provided at both ends of the test bench (401); two T-shaped plates (404) are symmetrically fixedly provided on one side of the limiting columns (403) away from the test bench (401); a transmission belt structure (405) is fixedly installed between the two T-shaped plates (404); an anti-slip transmission belt (406) is provided on the transmission belt structure (405); a connecting groove is provided at the top end of the anti-slip transmission belt (406); the anti-slip transmission belt (406) is fixedly connected to a sleeve block (407) through the connecting groove; and the sleeve block (407) is fixedly connected to a chain tensioning structure (408).

2. A highly breathable multi-color fluororubber watchband air permeability testing device according to claim 1, characterized in that: The chain stretching structure (408) includes a first pull rod fixedly connected to the sleeve (407); two ends of the first pull rod respectively pass through two ends of the sleeve (407) and are fixedly connected to a first chain link, and a second pull rod is rotatably connected between the two first chain links; two ends of the second pull rod respectively pass through opposite sides of the two first chain links and are connected to a second chain link; a third pull rod is connected between the two second chain links, and the third pull rod is further connected to two third chain links between the two second chain links, and the two limiting posts (403) are respectively arranged on the extension paths of the corresponding third chain links; The two second chain links respectively contact with the two T-plates (404).

3. The air permeability testing device for a highly air permeable multi-color fluororubber watch strap according to claim 2, characterized in that: One end of the third chain link away from the third pull rod is fixedly connected to a clamping frame (409), and two clamping plates (410) are provided on the clamping frame (409). A sliding groove (411) is provided on one of the clamping plates (410) close to the test bench (401), and a threaded barrel (412) is slidably connected to the inner wall of the sliding groove (411). The inner thread of the threaded barrel (412) is connected to a fastening screw (413), and the fastening screw (413) can pass through the threaded barrel (412) and abut against the other clamping plate (410).

4. The air permeability testing device for a highly air permeable multi-color fluororubber watch strap according to claim 1, characterized in that: A camera (414) disposed toward the test bench (401) is fixedly mounted on one side of the inner wall of the test high-pressure chamber (3), and a protective cover is provided on the outer side cover of the camera (414).

5. The air permeability testing device for a highly air permeable multi-color fluororubber watch strap according to claim 4, characterized in that: The high-precision air pressure sensor (10) and the camera (414) are both provided with wireless transmission components inside.

6. The air permeability testing device for a highly air permeable multi-color fluororubber watch strap according to claim 1, characterized in that: The control structure (7) is composed of a plurality of model blocks (701) that match the position, structure and volume of the test structure (4), wherein the model blocks (701) that match the test bench (401) do not have a ventilation hole group (402).

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