Travel backpack load testing device

Abstract

The utility model relates to the technical field of testing devices, and discloses a packsack load testing device which comprises an operation table, an L-shaped frame fixedly connected to the top of the operation table, a motor fixedly connected to the top of the L-shaped frame, a same supporting plate fixedly connected to the top ends of two weighing sensors, and a supporting mechanism arranged on the top of the supporting plate and used for supporting a placing plate. Two mounting grooves are symmetrically formed in the surfaces of the sides, close to the two supporting plates, of the supporting frame, adjusting plates are rotationally connected to the interiors of the two mounting grooves, restraining plates are hinged to the ends of the sides, away from the placing plate, of the two adjusting plates, and adjusting mechanisms used for adjusting the restraining plates are arranged at the other ends of the two adjusting plates. Through the arrangement of the restraint plate, the strap can be restrained, and the restraint plate is mounted at the other end of the adjusting plate, so that the restraint plate can move upwards along with continuous downward movement of the pressing plate, and the restraint plate can restrain the strap after moving upwards so as to avoid the phenomenon that the strap falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a load testing device for travel backpacks. Background Art

[0002] A load testing device for travel backpacks is a device used to test and measure the load capacity of travel backpacks. It usually consists of a weighing sensor and a display screen. The weighing sensor can be installed on the shoulder strap or other appropriate positions of the travel backpack to measure the weight borne by the backpack. By connecting to the display screen, users can monitor the weight of the backpack in real time and ensure that it does not exceed the load capacity limit of the backpack. This device can help travelers arrange their luggage reasonably, avoid overweight or overloading, and improve the comfort and convenience of travel.

[0003] When some existing load testing devices for travel backpacks are in use, in order to improve the working efficiency of the device, the shoulder straps of the travel backpack are usually directly placed on the surface of the weighing sensor. Because there is a lack of a fixing structure, the shoulder straps of the travel backpack may fall off during the test of the travel backpack. Therefore, this problem needs to be solved. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and propose a load testing device for travel backpacks.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A load testing device for travel backpacks includes an operating table. A support frame is fixedly connected to the top of the operating table. A motor is fixedly connected to the top of the support frame. A testing mechanism for testing the backpack is provided on the output shaft of the motor. A support frame is fixedly connected to one side of the support frame. Two weighing sensors are fixedly connected to both ends of the support frame. The tops of the two weighing sensors are fixedly connected to the same support plate. A placement plate is arranged on the top of the support plate. A support mechanism for supporting the placement plate is provided on the top of the support plate. Two mounting grooves are symmetrically opened on the surface of the support frame close to both sides of the two support plates. An adjusting plate is rotatably connected to the inside of each of the two mounting grooves. A restraint plate is hinged to the end of each of the two adjusting plates away from the placement plate. An adjusting mechanism for adjusting the restraint plate is provided at the other end of each of the two adjusting plates. By setting the restraint plate, the shoulder straps can be restrained.

[0007] As a further solution of the utility model, the testing mechanism includes a first gear, which is fixedly connected to the output shaft of the motor. A second gear is fitted on the surface of the first gear. A lead screw is sleeved at the bottom of the second gear. The lead screw is rotatably connected to the bottom of the L-shaped frame. Two second limiting rods are fixedly connected to the bottom of the L-shaped frame close to the lead screw. The same sleeve is sleeved on the surfaces of the two second limiting rods and the lead screw. A lead screw nut is installed at the top of the sleeve close to the lead screw. The lead screw nut is arranged in mutual cooperation with the lead screw. A pressing block is fixedly connected to the bottom of the sleeve. Through the arrangement of the pressing block, the backpack can be tested.

[0008] As a further solution of the utility model, the supporting mechanism includes two receiving grooves, which are symmetrically arranged on the top of the supporting plate. Two first limiting rods are slidably connected to the inside of the two receiving grooves respectively. The two first limiting rods are fixedly connected to the bottom of the placing plate. The same bottom plate is fixedly connected to the bottoms of the two first limiting rods. First springs are sleeved on the surfaces of the two first limiting rods respectively. The bottom ends of the two first springs are fixedly connected to the inner surfaces of the receiving grooves. The top ends of the two first springs are fixedly connected to the bottom of the placing plate. Through the arrangement of the first springs, the placing plate can be supported.

[0009] As a further solution of the utility model, the adjusting mechanism includes a pressing plate, which is hinged to the other end of the adjusting plate. The pressing plate and the restraining plate are both slidably connected to the inside of the installation groove, and the bottom plate is arranged in mutual cooperation with the pressing plate. Two telescopic cylinders are symmetrically and fixedly connected to the bottom of the bottom plate. The bottom ends of the two telescopic cylinders are fixedly connected to the inner surface of the installation groove. Second springs are sleeved on the surfaces of the two telescopic cylinders respectively. The bottom ends of the two second springs are fixedly connected to the inner surface of the installation groove. The top ends of the two second springs are fixedly connected to the bottom of the pressing plate. A display screen is installed on one side of the operating table. Through the arrangement of the pressing plate, the restraining plate can be adjusted.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. Through the arrangement of the bottom plate, the adjusting plate can be adjusted. The placing plate will drive the bottom plate to move downward. A pressing plate is arranged at the bottom of the bottom plate, and the pressing plate is installed at one end of the adjusting plate. Since the center of the adjusting plate is rotatably connected, when the bottom plate drives the bottom plate to move downward, the other end of the adjusting plate can move upward.

[0012] 2. Through the arrangement of the restraining plate, the shoulder straps can be restrained. The restraining plate is installed at the other end of the adjusting plate. Thus, as the pressing plate continues to move downward, the restraining plate can move upward accordingly. The upward-moved restraining plate can restrain the shoulder straps to prevent the shoulder straps from falling off. Description of the Drawings

[0013] Figure 1 The overall structural schematic diagram of a load testing device for a travel backpack proposed by the present utility model;

[0014] Figure 2 The partial structural schematic diagram of a load testing device for a travel backpack proposed by the present utility model;

[0015] Figure 3 is Figure 2 the enlarged structural schematic diagram at position A in

[0016] Figure 4 The schematic diagram of the testing mechanism of a load testing device for a travel backpack proposed by the present utility model.

[0017] In the figure: 1, operating platform; 2, placing plate; 3, motor; 101, display screen; 103, L-shaped frame; 104, support frame; 105, installation groove; 201, first limiting rod; 202, first spring; 203, bottom plate; 204, adjusting plate; 205, restraining plate; 206, pressing plate; 207, telescopic cylinder; 208, second spring; 209, support plate; 210, storage groove; 211, weighing sensor; 301, first gear; 302, second gear; 303, lead screw; 304, second limiting rod; 305, sleeve; 306, lead screw nut; 307, pressing block. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Next, the present utility model will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0020] Refer to Figures 1-4, a travel backpack load testing device, including an operating table 1. A L-shaped frame 103 is fixedly connected to the top of the operating table 1. A motor 3 is fixedly connected to the top of the L-shaped frame 103. A testing mechanism for testing the backpack is provided on the output shaft of the motor 3. A support frame 104 is fixedly connected to one side of the L-shaped frame 103. Two weighing sensors 211 are fixedly connected to both ends of the support frame 104. The tops of the two weighing sensors 211 are fixedly connected to the same support plate 209. A placement plate 2 is arranged on the top of the support plate 209. A support mechanism for supporting the placement plate 2 is provided on the top of the support plate 209. Two installation slots 105 are symmetrically opened on the surface of the support frame 104 close to the two support plates 209. Two adjusting plates 204 are rotatably connected to the interiors of the two installation slots 105. Constraint plates 205 are hinged to the ends of the two adjusting plates 204 away from the placement plate 2. An adjusting mechanism for adjusting the constraint plates 205 is provided at the other ends of the two adjusting plates 204. Through the arrangement of the constraint plates 205, the backpack straps can be constrained.

[0021] Refer to Figure 2 and Figure 4 , in a preferred embodiment, the testing mechanism includes a first gear 301, the first gear 301 is fixedly connected to the output shaft of the motor 3. A second gear 302 is engaged with the surface of the first gear 301. A lead screw 303 is sleeved at the bottom of the second gear 302. The lead screw 303 is rotatably connected to the bottom of the L-shaped frame 103. Two second limiting rods 304 are fixedly connected to the bottom of the L-shaped frame 103 close to the lead screw 303. The same sleeve 305 is sleeved on the surfaces of the two second limiting rods 304 and the lead screw 303. A lead screw nut 306 is installed at the top of the sleeve 305 close to the lead screw 303. The lead screw nut 306 is arranged in mutual cooperation with the lead screw 303. A pressing block 307 is fixedly connected to the bottom of the sleeve 305. Through the arrangement of the pressing block 307, the backpack can be tested.

[0022] Refer to Figure 2 and Figure 3 , in a preferred embodiment, the support mechanism includes two storage grooves 210, the two storage grooves 210 are symmetrically opened on the top of the support plate 209. Two first limiting rods 201 are slidably connected to the interiors of the two storage grooves 210. The two first limiting rods 201 are fixedly connected to the bottom of the placement plate 2. The same bottom plate 203 is fixedly connected to the bottoms of the two first limiting rods 201. First springs 202 are sleeved on the surfaces of the two first limiting rods 201. The bottom ends of the two first springs 202 are fixedly connected to the inner surfaces of the storage grooves 210. The top ends of the two first springs 202 are fixedly connected to the bottom of the placement plate 2. Through the arrangement of the first springs 202, the placement plate 2 can be supported.

[0023] Refer to Figure 2 and Figure 3, in a preferred embodiment, the adjusting mechanism includes a pressing plate 206, which is hinged to the other end of the adjusting plate 204. Both the pressing plate 206 and the restraining plate 205 are slidably connected to the inside of the installation groove 105, and the bottom plate 203 is arranged in cooperation with the pressing plate 206. Two telescopic cylinders 207 are symmetrically and fixedly connected to the bottom of the bottom plate 203. The bottom ends of the two telescopic cylinders 207 are fixedly connected to the inner surface of the installation groove 105. A second spring 208 is sleeved on the surface of each of the two telescopic cylinders 207. The bottom ends of the two second springs 208 are fixedly connected to the inner surface of the installation groove 105, and the top ends of the two second springs 208 are fixedly connected to the bottom of the pressing plate 206. A display screen 101 is installed on one side of the operating table 1. Through the arrangement of the pressing plate 206, the restraining plate 205 can be adjusted.

[0024] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: When in use, place the straps of the travel backpack on the top of the placement plate 2, then put the pressing block 307 into the travel backpack, and then start the motor 3. A first gear 301 is installed on the output shaft of the motor 3, and the first gear 301 is engaged with the second gear 302 on the surface of the lead screw 303. Thus, when the motor 3 is started, the lead screw 303 will rotate accordingly. A sleeve 305 is sleeved on the surface of the lead screw 303, and the lead screw 303 is engaged with the lead screw nut 306 at the top of the sleeve 305. Thus, when the lead screw 303 rotates, the sleeve 305 can be moved downward. The pressing block 307 is installed at the bottom of the sleeve 305. Thus, when the sleeve 305 moves downward, the pressing block 307 can press the backpack to achieve the purpose of load testing. A bottom plate 203 is installed at the bottom of the placement plate 2. Thus, when the pressing block 307 presses the backpack, the placement plate 2 will drive the bottom plate 203 to move downward. The bottom plate 203 is matched with the pressing plate 206 at the bottom, and the pressing plate 206 is installed at one end of the adjusting plate 204. Since the center of the adjusting plate 204 is rotatably connected, when the bottom plate 203 drives the bottom plate 203 to move downward, the other end of the adjusting plate 204 can move upward. A restraining plate 205 is installed at the other end of the adjusting plate 204. Thus, as the pressing plate 206 continues to move downward, the restraining plate 205 can move upward accordingly. The restraining plate 205 after moving upward can restrain the straps to prevent the straps from falling off. When the restraining plate 205 moves upward to a certain height, the placement plate 2 will contact the support plate 209. A weighing sensor 211 is installed at the bottom of the support plate 209. Thus, when the placement plate 2 contacts the support plate 209, the load of the backpack can be tested.

[0025] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0026] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components and / or their combinations.

[0027] It should be noted that the terms "first", "second", etc. in the description, claims and the above drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented, for example, in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, product or device.

[0028] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A travel backpack load testing device, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixedly connected to an L frame (103), the top of the L frame (103) is fixedly connected to a motor (3), the output shaft of the motor (3) is provided with a testing mechanism for testing a backpack, one side of the L frame (103) is fixedly connected to a support frame (104), both ends of the support frame (104) are fixedly connected to two weighing sensors (211), the tops of the two weighing sensors (211) are fixedly connected to the same support plate (209), and the top of the support plate (209) is provided with a placement plate (2 ), a support mechanism for supporting the placement plate (2) is provided on the top of the support plate (209), two mounting grooves (105) are symmetrically provided on the surface of one side of the support frame (104) close to the two support plates (209), and an adjustment plate (204) is rotatably connected inside the two mounting grooves (105), and a restraining plate (205) is hingedly connected to the end of the two adjustment plates (204) away from the placement plate (2), and an adjustment mechanism for adjusting the restraining plate (205) is provided at the other end of the two adjustment plates (204).

2. The travel backpack load testing device according to claim 1, characterized in that: The testing mechanism comprises a first gear (301), the first gear (301) is fixedly connected to the output shaft of the motor (3), a second gear (302) is matched on the surface of the first gear (301), a screw rod (303) is sleeved on the bottom of the second gear (302), the screw rod (303) is rotatably connected to the bottom of the L frame (103), and two second limiting rods (304) are fixedly connected to the bottom of the L frame (103) near the screw rod (303).

3. The travel backpack load testing device according to claim 2, characterized in that: The surfaces of the two second limit rods (304) and the screw rod (303) are sleeved with a same sleeve (305), a screw nut (306) is installed on the top of the sleeve (305) close to the screw rod (303), the screw nut (306) and the screw rod (303) are arranged to cooperate with each other, and a pressure block (307) is fixedly connected to the bottom of the sleeve (305).

4. The travel backpack load testing device according to claim 3, characterized in that: The support mechanism comprises two receiving grooves (210), the two receiving grooves (210) are symmetrically arranged on the top of the support plate (209), two first limiting rods (201) are slidably connected inside the two receiving grooves (210), the two first limiting rods (201) are fixedly connected to the bottom of the placement plate (2), the bottoms of the two first limiting rods (201) are fixedly connected to the same bottom plate (203), the surfaces of the two first limiting rods (201) are sleeved with first springs (202), the bottom ends of the two first springs (202) are fixedly connected to the inner surface of the receiving grooves (210), and the top ends of the two first springs (202) are fixedly connected to the bottom of the placement plate (2).

5. The travel backpack load testing device according to claim 4, characterized in that: The adjustment mechanism comprises a pressing plate (206), wherein the pressing plate (206) is hinged to the other end of the adjustment plate (204), the pressing plate (206) and the restraining plate (205) are both slidably connected to the inside of the mounting groove (105), and the bottom plate (203) and the pressing plate (206) are arranged to cooperate with each other, and two telescopic cylinders (207) are symmetrically fixedly connected to the bottom of the bottom plate (203), and the bottom ends of the two telescopic cylinders (207) are fixedly connected to the inner surface of the mounting groove (105).

6. The travel backpack load testing device according to claim 5, characterized in that: The surfaces of the two telescopic cylinders (207) are sleeved with second springs (208), the bottom ends of the two second springs (208) are fixedly connected to the inner surface of the mounting groove (105), the top ends of the two second springs (208) are fixedly connected to the bottom of the pressure plate (206), and a display screen (101) is installed on one side of the operating table (1).

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