Limiting structure of touch screen impact testing machine

Abstract

The utility model discloses a limit structure of a touch screen impact testing machine, which comprises a testing machine body, a mounting groove with a U-shaped cross section is fixedly arranged on the top side of a base of the testing machine body, a limit component is arranged in the mounting groove, the limit component comprises a flow guide shell, and the flow guide shell is arranged in the mounting groove in a sliding manner. When the improved testing machine is used for limiting and fixing the touch screen, the air pump runs to continuously pump out air in the flow guide shell, so that a negative pressure cavity is formed in the flow guide shell, an operator attaches the touch screen to the supporting mechanism at the moment, the touch screen can be adsorbed and fixed to a specific position in the mounting groove, the limiting and fixing operation of the touch screen is simple, and the working efficiency is improved. The positions of all parts of the touch screen can be bent and deformed through deformation of the supporting mechanism, the positions of all the parts of the touch screen are hardly subjected to constraint force, and the accuracy of the impact test of the touch screen is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of touch screen impact testing machine, especially to a kind of limiting structure of touch screen impact testing machine. BACKGROUND

[0002] Impact testing machine refers to the material testing machine that impact test force is applied to sample, impact testing machine is divided into manual pendulum impact testing machine, semi-automatic impact testing machine and drop hammer impact testing machine etc., in the production process of touch screen, generally, touch screen is sampled by impact test, to ensure the quality of touch screen.

[0003] Such as the limiting structure of touch screen impact testing machine of the utility model discloses CN22023089292U, including testing machine body, the bottom of the testing machine body is fixedly connected with bottom block, the top of the bottom block is fixedly connected with fixed block, the inside of the fixed block is equipped with clamping groove, the inside of the fixed block is equipped with moving groove, the inside of the moving groove is slidably connected with limiting block, the left side of the limiting block is fixedly connected with moving plate, the left side of the moving plate is movably connected with screw rod through bearing, the screw rod is threadedly connected with fixed block, the left side of the screw rod is fixedly connected with rotating block, the inside of the fixed block is equipped with short groove, the inside of the short groove is movably connected with limiting plate.The utility model utilizes limiting assembly to limit and fix touch screen, does not need to use for a long time when limiting and fixing touch screen, does not waste a large amount of time of user, improves the test efficiency of touch screen.

[0004] In the above patent, the touch screen is fixed by the clamping of the elastic pad, so that a great friction force is generated between the two sides of the touch screen and the external object. During the impact process of the touch screen, the side edges of the touch screen are constrained, making the touch screen more prone to bending. Moreover, the large clamping force can also cause the touch screen to slightly bend and deform in advance, thereby affecting the impact test of the touch screen and reducing the accuracy of the touch screen impact test. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a limiting structure of touch screen impact testing machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides following technical scheme: A limiting structure of touch screen impact testing machine, including testing machine body, the top side fixedly equipped with the installation groove of the U shape of cross section shape setting of testing machine body base, be equipped with limiting assembly in installation groove, limiting assembly includes flow guide shell, flow guide shell is equipped with in installation groove, and the clearance fit between the bottom side of flow guide shell and the inner wall of installation groove, the fixedly equipped with air pump at the center position of flow guide shell left side, and the air inlet end of air pump is fixedly passed through the shell wall of flow guide shell, be equipped with support mechanism in flow guide shell, be connected through connecting mechanism between flow guide shell and installation groove, be equipped with adjusting mechanism in the shell wall of flow guide shell.

[0007] Preferably, the support mechanism includes a soft plate with a U-shaped cross section, the soft plate is arranged in the opening of the flow guide shell, and the side wall of the soft plate is fixedly connected with the inner wall of the flow guide shell, a plurality of adsorption holes are formed in the right side of the soft plate, and the distance between adjacent two adsorption holes is equal.

[0008] Preferably, the connecting mechanism includes two rotating shafts with a T-shaped cross section, the two rotating shafts are oppositely arranged at the middle positions of the front and rear sides of the flow guide shell, one end of each rotating shaft is inserted into the shell wall of the flow guide shell and rotationally connected with the flow guide shell, a guide groove is formed in the inner wall of the installation groove at the position corresponding to the rotating shaft, the other end of the rotating shaft is inserted into the corresponding guide groove and clearance-fitted with the inner wall of the corresponding guide groove, a sliding block is fixedly arranged at the other end of the rotating shaft and slidingly connected with the inner wall of the corresponding guide groove.

[0009] Preferably, a plurality of balls are rotationally arranged on the upper and lower sides of the sliding block, the distance between adjacent two balls is equal, a limiting groove is formed in the inner wall of the guide groove at the position corresponding to the ball, and the end of the ball close to the corresponding limiting groove is inserted into the corresponding limiting groove and in contact with the inner wall of the corresponding limiting groove.

[0010] Preferably, the adjusting mechanism includes two limiting rods, a plurality of positioning grooves are circumferentially arranged on the outer peripheral wall of one end of the rotating shaft, a circular groove is formed in the shell wall of the flow guide shell at the position corresponding to the positioning groove, and the limiting rod is slidingly arranged in the corresponding circular groove, the bottom end of the limiting rod is in a hemispherical shape and inserted into the corresponding positioning groove, a spring is arranged between the limiting rod and the inner wall of the corresponding circular groove, and the two ends of the spring are fixedly connected with the top end of the corresponding limiting rod and the inner wall of the corresponding circular groove, respectively.

[0011] Preferably, a threaded rod is arranged at the position corresponding to the limiting rod on the top side of the flow guide shell, the bottom end of the threaded rod is inserted into the inner hole of the spring and threadedly connected with the shell wall of the flow guide shell.

[0012] The utility model at least has following beneficial effect:

[0013] 1. The improved tester, when limiting and fixing the touch screen, the air pump continuously runs to extract the gas in the flow guide shell, so that a negative pressure chamber is formed in the flow guide shell, at this time the operator sticks the touch screen on the supporting mechanism, and the touch screen can be adsorbed and fixed at a specific position in the mounting groove, the limiting and fixing operation of the touch screen is simple, and the positions of each part of the touch screen can be bent and deformed through the deformation of the supporting mechanism, so that the positions of each part of the touch screen are hardly constrained, and the accuracy of the impact test of the touch screen is improved.

[0014] 2. When limiting and fixing the touch screen, the operator adjusts the angle of the flow guide shell by pushing the flow guide shell, and then locks the inclination angle of the flow guide shell through the adjusting mechanism, so that the touch screen is stably kept in a specific inclined state, and the device can perform impact test of the touch screen in different inclined states.

[0015] 3. When the improved tester performs impact test on the touch screen, the flow guide shell slides to the left through the connecting mechanism due to the pushing of the impact force on the touch screen after the touch screen is impacted, so that the touch screen is prevented from being in contact with external objects for a long time after being impacted, and the touch screen is further damaged, and the accuracy of the impact test of the touch screen is affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 It is a whole schematic view of the present application;

[0018] Figure 2 It is a schematic view of the internal structure of the flow guide shell of the present application;

[0019] Figure 3 It is a right view of the internal structure of the flow guide shell of the present application;

[0020] Figure 4 It is a schematic view of the present application Figure 3 It is an enlarged structure schematic view of A in the present application;

[0021] Figure 5 It is a right view of the mounting groove and the flow guide shell of the present application.

[0022] In the figure: 1, test machine body; 2, mounting groove; 3, limiting assembly; 31, flow guide shell; 32, air pump; 4, support mechanism; 41, soft plate; 42, adsorption hole; 5, connecting mechanism; 51, rotating shaft; 52, guide groove; 53, sliding block; 54, ball; 55, limiting groove; 6, adjusting mechanism; 61, positioning groove; 62, circular groove; 63, limiting rod; 64, spring; 65, threaded rod. DETAILED DESCRIPTION

[0023] In order to make the technical scheme and advantages of the utility model clearer, the utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0024] The utility model provides a technical scheme: Figure 1 Figure 5 The utility model discloses a limiting structure of touch screen impact testing machine, including test machine body 1, the top side fixedly equipped with the mounting groove 2 of the U-shaped setting of cross section shape of test machine body 1 base, be equipped with limiting assembly 3 in mounting groove 2, limiting assembly 3 includes flow guide shell 31, flow guide shell 31 slidingly equipped in mounting groove 2, and the bottom side of flow guide shell 31 and the inner wall clearance fit of mounting groove 2, the central position of flow guide shell 31 left side fixedly equipped with air pump 32, and the air inlet end of air pump 32 fixedly penetrates the shell wall of flow guide shell 31, be equipped with support mechanism 4 in flow guide shell 31, flow guide shell 31 and mounting groove 2 are connected through connecting mechanism 5, and the shell wall of flow guide shell 31 is equipped with adjusting mechanism 6.

[0025] In this embodiment, when the improved test machine is limiting and fixing the touch screen, first push the flow guide shell 31 to the left to leave space for the installation of the touch screen, then the operator adjusts the inclination angle of the flow guide shell 31 by pushing the flow guide shell 31 as needed, and locks the inclination angle of the flow guide shell 31 using the adjusting mechanism 6 after the inclination angle adjustment of the flow guide shell 31 is completed, then the air pump 32 operates to continuously exhaust the gas in the flow guide shell 31, thereby forming a negative pressure cavity in the flow guide shell 31. At this time, the operator can attach the touch screen to the support mechanism 4, and the touch screen can be adsorbed and fixed at a specific position in the mounting groove 2, and the touch screen can stably maintain the required inclination angle. Then the operator pushes the flow guide shell 31 in the opposite direction to reset the flow guide shell 31, and the limiting and fixing of the touch screen is completed.

[0026] After the limiting and fixing of the touch screen is completed, the test machine body 1 starts to perform the impact test of the touch screen. After the touch screen is impacted, the flow guide shell 31 slides to the left through the connecting mechanism 5 due to the pushing of the impact force on the touch screen, thereby avoiding the touch screen from being in contact with external objects for a long time after bearing the impact.

[0027] ​In further preferable embodiments of the present application, as shown in Figure 2 The support mechanism 4 includes a soft plate 41 arranged in a U-shaped cross section, which is arranged in the opening of the flow guide shell 31, and the side wall of the soft plate 41 is fixedly connected with the inner wall of the flow guide shell 31. A plurality of adsorption holes 42 are formed in the right side of the soft plate 41, and the distance between any two adjacent adsorption holes 42 is equal.

[0028] In the present embodiment, when the negative pressure cavity is formed in the flow guide shell 31, external gas continuously flows into the flow guide shell 31 through the adsorption holes 42 to supplement the lost gas in the flow guide shell 31. Then, the operator attaches the touch screen to the soft plate 41, and the touch screen is adsorbed and limited on the soft plate 41 through the adsorption holes 42, so that the touch screen will not be in contact with the relatively hard external object.

[0029] When the touch screen is impacted by an external object, the position of each part of the touch screen can be arbitrarily bent and deformed through the deformation of the soft plate 41, so that the touch screen is almost not constrained by external force.

[0030] In further preferable embodiments of the present application, as shown in Figure 2 and Figure 5 The connecting mechanism 5 includes two rotating shafts 51 arranged in a T-shaped cross section, which are arranged at the middle positions of the front and rear sides of the flow guide shell 31, and one end of each rotating shaft 51 is inserted into the shell wall of the flow guide shell 31 and rotationally connected with the flow guide shell 31. A guide groove 52 is formed in the inner wall of the mounting groove 2 at a position corresponding to the rotating shaft 51, and the other end of the rotating shaft 51 is inserted into the corresponding guide groove 52 and gap-fitted with the inner wall of the corresponding guide groove 52. The other end of the rotating shaft 51 is fixedly provided with a sliding block 53, and the sliding block 53 is slidingly connected with the inner wall of the corresponding guide groove 52.

[0031] In the present embodiment, when the flow guide shell 31 slides to the left, the sliding block 53 is in contact with the inner wall of the guide groove 52, so that the flow guide shell 31 stably maintains the original inclined state and slides in a linear trajectory, thereby avoiding the rotation of the flow guide shell 31 caused by the impact force, which leads to the secondary collision of the touch screen with the external object.

[0032] In further preferable embodiments of the present application, as shown in Figure 2 - Figure 5 The upper and lower sides of the sliding block 53 are rotationally provided with a plurality of rolling balls 54, and the distance between any two adjacent rolling balls 54 is equal. Limiting grooves 55 are formed in the inner wall of the guide groove 52 at positions corresponding to the rolling balls 54, and one end of the rolling ball 54 close to the corresponding limiting groove 55 is inserted into the corresponding limiting groove 55 and in contact with the inner wall of the corresponding limiting groove 55.

[0033] In the embodiment, the arrangement of the rolling ball 54 can greatly offset the friction between the sliding block 53 and the inner wall of the guide groove 52 through the rotation of the rolling ball 54 in the limiting groove 55, so that the touch screen can timely slide to the left after being impacted by external force.

[0034] In the further preferable embodiment of the utility model, as shown in Figure 2 Figure 4 The adjusting mechanism 6 comprises two limiting rods 63, the outer peripheral wall of one end of the rotating shaft 51 is provided with a plurality of positioning grooves 61 in a circumferential array, the shell wall of the flow guide shell 31 is provided with a circular groove 62 at a position corresponding to the positioning groove 61, and the limiting rod 63 is slidingly arranged in the corresponding circular groove 62; the bottom end of the limiting rod 63 is provided in a hemispherical shape and is inserted into the corresponding positioning groove 61; a spring 64 is arranged between the limiting rod 63 and the inner wall of the corresponding circular groove 62, and the two ends of the spring 64 are fixedly connected with the top end of the corresponding limiting rod 63 and the inner wall of the corresponding circular groove 62, respectively.

[0035] In the embodiment, when the operator pushes the flow guide shell 31, the hemispherical end of the limiting rod 63 can be extruded out of the positioning groove 61 along the arc-shaped wall of the limiting rod 63, so that the constraint and limiting state of the circular rod is automatically released, the flow guide shell 31 can be smoothly rotated to adjust the inclination angle of the flow guide shell 31; when the limiting rod 63 is aligned with the next positioning groove 61, the hemispherical end of the limiting rod 63 is automatically inserted into the positioning groove 61 due to the pushing of the spring 64, and the limiting rod 63 is automatically limited by the mutual extrusion of the limiting rod 63, the inner wall of the positioning groove 61 and the inner wall of the circular groove 62, so that the flow guide shell 31 is stably maintained at a specific inclination angle without the need for other operations of the operator, thereby facilitating the inclination angle adjustment of the flow guide shell 31.

[0036] In the further preferable embodiment of the utility model, as shown in Figure 3 Figure 4 The top side of the flow guide shell 31 is provided with a threaded rod 65 at a position corresponding to the limiting rod 63, and the bottom end of the threaded rod 65 is inserted into the inner hole of the spring 64 and is threadedly connected with the shell wall of the flow guide shell 31.

[0037] In the embodiment, after the inclination angle adjustment of the flow guide shell 31 is completed, the operator twists the threaded rod 65 until the threaded rod 65 is in contact with the limiting rod 63; at this time, due to the mutual extrusion of the threaded rod 65 and the limiting rod 63, the spherical end of the limiting rod 63 is stably inserted into the positioning groove 61, and due to the mutual extrusion of the spherical end of the limiting rod and the inner wall of the positioning groove 61, the position between the circular rod and the flow guide shell 31 remains unchanged, and the flow guide shell 31 is stably maintained at a specific inclination state.

[0038] ​​Working principle: when the improved tester fixes the limit of the touch screen, the operator first pushes the flow guide shell 31 to the left, then starts the air pump 32 to continuously extract the gas in the flow guide shell 31, so that a negative pressure cavity is continuously formed in the flow guide shell 31, and at the same time, the external gas continuously flows into the flow guide shell 31 through the adsorption hole 42 to supplement the lost gas in the flow guide shell 31, then the operator sticks the touch screen on the soft plate 41, adsorbs and limits the touch screen on the soft plate 41 through the adsorption hole 42, then the operator pushes the flow guide shell 31 to the right to reset the flow guide shell 31, and the limit fixing of the touch screen is completed, then the operator can perform the impact test of the touch screen through the tester body 1;

[0039] After the above-mentioned pushing the flow guide shell 31 to the left, the operator reversely twists the threaded rod 65 to screw out the threaded rod 65 from the circular groove 62, then the operator rotates the flow guide shell 31, at this time, due to the mutual resistance of the ball 54 and the inner wall of the limiting groove 55, the flow guide shell 31 rotates around the circular rod, so that the angle of the touch screen can be adjusted as needed, after the angle adjustment of the touch screen is completed, the operator twists the threaded rod 65 forward until the threaded rod 65 contacts with the limiting rod 63, at this time, due to the mutual resistance of the threaded rod 65 and the limiting rod 63, the spherical end of the limiting rod 63 is stably inserted into the positioning groove 61, and due to the mutual resistance of the spherical end of the positioning rod and the inner wall of the positioning groove 61, the position between the circular rod and the flow guide shell 31 remains unchanged, and the touch screen stably maintains a specific inclined state, so that the operator can perform the impact test of the touch screen in different angle inclined states;

[0040] When the above-mentioned touch screen is impacted, due to the deformation of the soft plate 41, each part of the touch screen can freely bend and deform, and at the same time, due to the impact on the touch screen, the flow guide shell 31 slides to the left with the rotation of the ball 54, so that the touch screen is prevented from being in contact with external objects for a long time after bearing the impact.

[0041] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A limiting structure of a touch screen impact tester, comprising a tester body (1), characterized in that: The top side of the base of the tester body (1) is fixedly provided with an installation groove (2) in U-shaped cross section, the installation groove (2) is provided with a limiting assembly (3), the limiting assembly (3) comprises a flow guide shell (31), the flow guide shell (31) is slidably arranged in the installation groove (2), and the bottom side of the flow guide shell (31) is in gap cooperation with the inner wall of the installation groove (2), a gas pump (32) is fixedly arranged at the center position of the left side of the flow guide shell (31), and the gas inlet end of the gas pump (32) penetrates the shell wall of the flow guide shell (31), the flow guide shell (31) is provided with a supporting mechanism (4), the flow guide shell (31) and the installation groove (2) are connected through a connecting mechanism (5), and the shell wall of the flow guide shell (31) is provided with an adjusting mechanism (6).

2. The limiting structure of the touch screen impact tester according to claim 1, characterized in that: The supporting mechanism (4) comprises a soft plate (41) in U-shaped cross section, the soft plate (41) is arranged in the opening of the flow guide shell (31), and the side wall of the soft plate (41) is fixedly connected with the inner wall of the flow guide shell (31), a plurality of adsorption holes (42) are formed in the right side of the soft plate (41), and the spacing between adjacent two adsorption holes (42) is equal.

3. The limiting structure of the touch screen impact tester according to claim 2, characterized in that: The connecting mechanism (5) comprises two rotating shafts (51) in T-shaped cross section, the two rotating shafts (51) are oppositely arranged at the middle positions of the front and rear sides of the flow guide shell (31), one end of each rotating shaft (51) is inserted into the shell wall of the flow guide shell (31) and is rotatably connected with the flow guide shell (31), a guide groove (52) is formed in the position of the inner wall of the installation groove (2) corresponding to the rotating shaft (51), the other end of the rotating shaft (51) is inserted into the corresponding guide groove (52) and is in gap cooperation with the inner wall of the corresponding guide groove (52), and a sliding block (53) is fixedly arranged at the other end of the rotating shaft (51) and is slidably connected with the inner wall of the corresponding guide groove (52).

4. The limiting structure of the touch screen impact tester according to claim 3, characterized in that: A plurality of rolling balls (54) are rotatably arranged on the upper and lower sides of the sliding block (53), and the spacing between adjacent two rolling balls (54) is equal, and a limiting groove (55) is arranged in the position of the inner wall of the guide groove (52) corresponding to the rolling ball (54), and one end of the rolling ball (54) close to the corresponding limiting groove (55) is inserted into the corresponding limiting groove (55) and is in contact with the inner wall of the corresponding limiting groove (55).

5. The limiting structure of the touch screen impact tester according to claim 4, characterized in that: The adjusting mechanism (6) comprises two limiting rods (63), a plurality of positioning grooves (61) are circumferentially arranged on the outer peripheral wall of one end of the rotating shaft (51), a circular groove (62) is formed in the position of the shell wall of the flow guide shell (31) corresponding to the positioning groove (61), and the limiting rod (63) is slidably arranged in the corresponding circular groove (62), the bottom end of the limiting rod (63) is in hemispherical shape and is inserted into the corresponding positioning groove (61), a spring (64) is arranged between the limiting rod (63) and the inner wall of the corresponding circular groove (62), and the two ends of the spring (64) are fixedly connected with the top end of the corresponding limiting rod (63) and the inner wall of the corresponding circular groove (62) respectively.

6. The limiting structure of the touch screen impact tester according to claim 5, characterized in that: The top side of the flow guide shell (31) is provided with a threaded rod (65) corresponding to the position of the limiting rod (63), and the bottom end of the threaded rod (65) is inserted into the inner hole of the spring (64) and is threadedly connected with the shell wall of the flow guide shell (31).

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