Temperature detection device for cold chain transportation

Abstract

The utility model discloses a temperature detection device for cold chain transportation, which relates to the technical field of temperature detection for cold chain transportation and comprises a protective cover, a servo motor is arranged on the side wall of the protective cover, the output end of the servo motor is fixedly connected with a threaded rod, and one end, far away from the servo motor, of the threaded rod is positioned in the protective cover. The side wall of the threaded rod is fixedly connected with a first gear, the side wall of the first gear is connected with a toothed belt in a meshed mode, the end, away from the first gear, of the toothed belt is connected with a second gear in a meshed mode, the side wall of the second gear is fixedly connected with a rotating shaft, the side wall of the rotating shaft is fixedly connected with a half gear, and the half gear is connected with a rack in a meshed mode. The half gear extrudes the spring, then the spring drives the push block to impact the elastic filter screen in a reciprocating mode, frost or ice on the elastic filter screen is removed, the accuracy of the detection result of the temperature monitor is improved, the half gear is driven through rotation of the threaded rod, a driving source does not need to be additionally arranged, the structure is simple, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature for cold chain transportation, and in particular to a temperature detection device for cold chain transportation. Background Art

[0002] Cold chain transportation generally refers to a systematic project in which refrigerated and frozen foods are kept in a specified low-temperature environment during production, storage, transportation, sales, and before consumption, in order to ensure food quality and reduce food loss. Cold chain transportation was established with the advancement of science and technology and the development of refrigeration technology. It is a low-temperature logistics process based on freezing technology and refrigeration technology. When transporting food materials, the requirements for the environment are relatively high. Refrigeration can be said to be the most important step in the entire transportation process. Different goods have different requirements for the temperature of the cargo box. During transportation, the temperature inside the cargo box must also be paid attention to at all times. Therefore, a special temperature measuring device is required to measure the temperature inside the transport cargo box at all times.

[0003] Chinese patent document CN214650484U discloses a temperature measuring device for cold chain logistics transportation, including a protective cover and a temperature measuring instrument, the temperature measuring instrument is arranged inside the protective cover, a range adjustment mechanism is arranged inside the protective cover, the adjustment mechanism includes a first motor, the first motor is fixedly arranged on one side of the protective cover, a screw rod is arranged inside the protective cover, one end of the screw rod is movably connected to a side wall of the inner wall of the protective cover through a bearing, the other end of the screw rod extends to the outer end of the protective cover and is fixedly connected to the output shaft of the first motor, a nut seat is sleeved on the outer end of the screw rod, a fixed base is fixedly arranged on one side of the nut seat, a protective box is fixedly arranged on the bottom end of the fixed base, a second motor is fixedly arranged on the top end of the protective box, a rotating shaft is fixedly arranged on the bottom end of the output shaft of the second motor, a fixed disk is fixedly arranged on the outer end of the rotating shaft, a bamboo-joint electric push rod is fixedly arranged on one side of the fixed disk, and the temperature measuring instrument is fixedly arranged on the moving end of the bamboo-joint electric push rod. The above-mentioned temperature measuring device for cold chain logistics transportation has shortcomings. Although the device can adjust the temperature measurement range, it has limitations. The setting uses a filter to separate and prevent the goods from hitting the temperature monitor. However, the filter is often accompanied by frost during use. If it is not processed, the frost will turn into ice, causing the accuracy of the temperature monitor's detection results to be greatly reduced, which is not conducive to detecting the temperature inside the box. In severe cases, it will cause huge economic losses.

[0004] Therefore, in order to solve such problems, we proposed a temperature detection device for cold chain transportation. Utility Model Content

[0005] The purpose of the utility model is to provide a temperature detection device for cold chain transportation, aiming to solve the problem in the above-mentioned background technology that the existing temperature measurement device for cold chain logistics transportation cannot remove frost or ice on the filter during use, resulting in a decrease in the accuracy of the detection result.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temperature detection device for cold chain transportation, comprising a protective cover, a workbench is arranged at the lower end of the protective cover, a servo motor is arranged at the side wall of the protective cover, a threaded rod is fixedly connected to the output end of the servo motor, the end of the threaded rod away from the servo motor is located in the protective cover, a first gear is fixedly connected to the side wall of the threaded rod, a toothed belt is meshedly connected to the side wall of the first gear, the end of the toothed belt away from the first gear is meshedly connected to the second gear, a rotating shaft is fixedly connected to the side wall of the second gear, the rotating shaft is located in the workbench, a half gear is fixedly connected to the side wall of the rotating shaft, the half gear is meshedly connected to the rack, a sliding column is fixedly connected to the upper end of the rack, a spring is arranged on the side wall of the sliding column, the spring is located at the upper end of the workbench, and a push block is arranged at the end of the sliding column away from the rack.

[0007] Preferably, the side wall of the threaded rod is threadedly connected with a slider, a mounting seat is provided at the lower end of the slider, a stepper motor is provided inside the mounting seat, a rotating disk is provided at the output end of the stepper motor, a bamboo-joint electric push rod is provided on the side wall of the rotating disk, a temperature measuring instrument is provided at the end of the bamboo-joint electric push rod away from the rotating disk, and an elastic filter is provided at the lower end of the protective cover.

[0008] Preferably, there are four half gears on the side wall of the rotating shaft, and four push blocks on the upper end of the workbench.

[0009] Preferably, a guide plate is provided on the upper end of the workbench.

[0010] Preferably, a slide groove is provided in the inner top wall of the protective cover, and a limit block is provided at the upper end of the sliding block. The limit block is located in the slide groove, and the limit block is slidably connected to the slide groove.

[0011] Preferably, the rotating disk is rotatably connected to the mounting seat.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, a first gear, a toothed belt, a second gear, a rotating shaft, a half gear, a rack, a sliding column, a spring and a push block are arranged. The half gear is used to squeeze the spring, and then the spring is used to drive the push block to reciprocate and hit the elastic filter screen, thereby removing frost or ice on the elastic filter screen, increasing the accuracy of the detection result of the temperature monitor, and avoiding economic losses caused by inaccurate temperature detection results. Secondly, the half gear is driven by the rotation of the threaded rod, and there is no need to add an additional driving source. The structure is simple and easy to operate, which increases practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of a temperature detection device for cold chain transportation proposed by the utility model Figure 1 ;

[0015] Figure 2 A three-dimensional schematic diagram of a temperature detection device for cold chain transportation proposed by the utility model Figure 2 ;

[0016] Figure 3 This is a three-dimensional schematic diagram of the internal structure of a temperature detection device for cold chain transportation proposed by the utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram of a workbench in a temperature detection device for cold chain transportation proposed by the utility model;

[0018] Figure 5 This is a three-dimensional exploded schematic diagram of a workbench in a temperature detection device for cold chain transportation proposed by the utility model.

[0019] Legend:

[0020] 1. Protective cover; 101. Slide; 11. Servo motor; 12. Threaded rod; 13. First gear; 131. Toothed belt; 132. Second gear; 133. Rotating shaft; 134. Half gear; 135. Rack; 136. Sliding column; 137. Spring; 138. Push block; 14. Sliding block; 141. Limit block; 15. Mounting seat; 16. Stepping motor; 17. Rotating disk; 18. Bamboo electric push rod; 19. Temperature measuring instrument; 2. Workbench; 21. Guide plate; 3. Elastic filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Reference Figure 1-5 The utility model provides an embodiment: a temperature detection device for cold chain transportation, comprising a protective cover 1, a workbench 2 is arranged at the lower end of the protective cover 1, a servo motor 11 is arranged on the side wall of the protective cover 1, a threaded rod 12 is fixedly connected to the output end of the servo motor 11, an end of the threaded rod 12 away from the servo motor 11 is located in the protective cover 1, a first gear 13 is fixedly connected to the side wall of the threaded rod 12, a toothed belt 131 is meshed with the side wall of the first gear 13, and the toothed belt 131 is away from the first gear 13 One end of the gear 132 is meshedly connected with the second gear 132, and the side wall of the second gear 132 is fixedly connected with a rotating shaft 133, the rotating shaft 133 is located in the workbench 2, the side wall of the rotating shaft 133 is fixedly connected with a half gear 134, the half gear 134 is meshedly connected with a rack 135, the upper end of the rack 135 is fixedly connected with a sliding column 136, the side wall of the sliding column 136 is provided with a spring 137, the spring 137 is located at the upper end of the workbench 2, and the end of the sliding column 136 away from the rack 135 is provided with a push block 138.

[0024] This arrangement drives the servo motor 11 to rotate, so that the servo motor 11 drives the threaded rod 12 to rotate, so that the threaded rod 12 drives the first gear 13 to rotate, so that the first gear 13 drives the toothed belt 131 to rotate, so that the toothed belt 131 drives the second gear 132 to rotate, so that the second gear 132 drives the rotating shaft 133 to rotate, so that the rotating shaft 133 drives the half gear 134 to rotate, so that the half gear 134 drives the rack 135 to move vertically and linearly, so that the rack 135 drives the sliding column 136 to move vertically and linearly, so that the sliding column 136 drives the push block 138 to move vertically and linearly, so that the push block 138 squeezes the spring 137, and then after the half gear 134 releases the rack 135, the elastic force of the spring 137 is used to drive the push block 138 to reciprocate and impact the elastic filter 3, thereby removing ice on the surface of the elastic filter 3 and increasing the measurement accuracy of the temperature measuring instrument 19.

[0025] The side wall of the threaded rod 12 is threadedly connected with a slider 14, and a mounting seat 15 is arranged at the lower end of the slider 14. A stepper motor 16 is arranged inside the mounting seat 15, and a rotating disk 17 is arranged at the output end of the stepper motor 16. A bamboo-jointed electric push rod 18 is arranged on the side wall of the rotating disk 17, and a temperature measuring instrument 19 is arranged at the end of the bamboo-jointed electric push rod 18 away from the rotating disk 17. An elastic filter screen 3 is arranged at the lower end of the protective cover 1. By driving the servo motor 11 to rotate, the servo motor 11 drives the threaded rod 12 to rotate, so that the threaded rod 12 drives the slider 14 to move horizontally and linearly, so that the slider 14 drives the mounting seat 15 to move horizontally and linearly, so that the mounting seat 15 drives the temperature measuring instrument 19 to move horizontally and linearly, and secondly, by starting the stepper motor 16 to drive the rotating disk 17 to rotate, the rotating disk 17 drives the bamboo-jointed electric push rod 18 to rotate, so that the bamboo-jointed electric push rod 18 drives the temperature measuring instrument 19 to rotate, and the position of the temperature measuring instrument 19 can be further adjusted by adjusting the bamboo-jointed electric push rod 18 to increase the detection range.

[0026] There are four half gears 134 on the side wall of the rotating shaft 133, and four push blocks 138 on the upper end of the workbench 2, which are used to increase the effect of removing ice on the surface of the elastic filter 3 by simultaneously using the four push blocks 138 to impact the elastic filter 3.

[0027] A guide plate 21 is provided at the upper end of the workbench 2 for guiding the cleaned ice to avoid accumulation at the upper end of the workbench 2 and to prevent the accumulated ice from affecting the extrusion of the spring 137 .

[0028] A slide groove 101 is provided on the inner top wall of the protective cover 1, and a limit block 141 is provided on the upper end of the slider 14. The limit block 141 is located in the slide groove 101, and the limit block 141 is slidably connected to the slide groove 101 to limit the limit block 141 and prevent the limit block 141 from sliding.

[0029] The rotating disk 17 is rotatably connected to the mounting base 15, and is used to drive the rotating disk 17 through a stepper motor 16 fixed in the mounting base 15, thereby realizing the rotation of the temperature measuring instrument 19, increasing the detection range of the temperature monitor and increasing practicality.

[0030] Working principle: First, the servo motor 11 is driven to rotate, the servo motor 11 drives the threaded rod 12 to rotate, the threaded rod 12 drives the first gear 13 to rotate, the first gear 13 drives the toothed belt 131 to rotate, the toothed belt 131 drives the second gear 132 to rotate, the second gear 132 drives the rotating shaft 133 to rotate, the rotating shaft 133 drives the half gear 134 to rotate, the half gear 134 drives the rack 135 to move vertically and linearly, the rack 135 drives the sliding column 136 to move vertically and linearly, the sliding column 136 drives the push block 138 to move vertically and linearly, the push block 138 squeezes the spring 137, and the half gear 134 releases the rack 135 Finally, the elastic force of the spring 137 is used to drive the push block 138 to reciprocate and impact the elastic filter 3 to remove the ice on the surface of the elastic filter 3. Secondly, the rotation of the threaded rod 12 simultaneously drives the slider 14 to move horizontally and linearly, the slider 14 drives the mounting seat 15 to move horizontally and linearly, the mounting seat 15 drives the temperature measuring instrument 19 to move horizontally and linearly, and then the stepping motor 16 is started to drive the rotating disk 17 to rotate, the rotating disk 17 drives the bamboo-joint electric push rod 18 to rotate, and the bamboo-joint electric push rod 18 drives the temperature measuring instrument 19 to rotate, and the position of the temperature measuring instrument 19 can be further adjusted by adjusting the bamboo-joint electric push rod 18. The structure is simple and easy to operate, which increases practicality.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature detection device for cold chain transportation, comprising a protective cover (1), characterized in that: A workbench (2) is arranged at the lower end of the protective cover (1), a servo motor (11) is arranged on the side wall of the protective cover (1), a threaded rod (12) is fixedly connected to the output end of the servo motor (11), one end of the threaded rod (12) away from the servo motor (11) is located inside the protective cover (1), a first gear (13) is fixedly connected to the side wall of the threaded rod (12), a toothed belt (131) is meshedly connected to the side wall of the first gear (13), one end of the toothed belt (131) away from the first gear (13) is meshedly connected to the second gear (132), and the second gear (132) is meshedly connected to the side wall of the first gear (13). A rotating shaft (133) is fixedly connected to the side wall of the gear (132), the rotating shaft (133) is located inside the workbench (2), a half gear (134) is fixedly connected to the side wall of the rotating shaft (133), the half gear (134) is meshingly connected to a rack (135), a sliding column (136) is fixedly connected to the upper end of the rack (135), a spring (137) is arranged on the side wall of the sliding column (136), the spring (137) is located at the upper end of the workbench (2), and a push block (138) is arranged at one end of the sliding column (136) away from the rack (135).

2. A temperature detection device for cold chain transportation according to claim 1, characterized in that: The side wall of the threaded rod (12) is threadedly connected with a slider (14), the lower end of the slider (14) is provided with a mounting seat (15), a stepping motor (16) is arranged inside the mounting seat (15), the output end of the stepping motor (16) is provided with a rotating disk (17), the side wall of the rotating disk (17) is provided with a bamboo-jointed electric push rod (18), the end of the bamboo-jointed electric push rod (18) away from the rotating disk (17) is provided with a temperature measuring instrument (19), and the lower end of the protective cover (1) is provided with an elastic filter screen (3).

3. A temperature detection device for cold chain transportation according to claim 1, characterized in that: There are four half gears (134) on the side wall of the rotating shaft (133), and there are four push blocks (138) on the upper end of the workbench (2).

4. A temperature detection device for cold chain transportation according to claim 1, characterized in that: A guide plate (21) is provided at the upper end of the workbench (2).

5. A temperature detection device for cold chain transportation according to claim 2, characterized in that: The inner top wall of the protective cover (1) is provided with a slide groove (101), and a limit block (141) is provided at the upper end of the sliding block (14). The limit block (141) is located in the slide groove (101), and the limit block (141) is slidably connected to the slide groove (101).

6. A temperature detection device for cold chain transportation according to claim 2, characterized in that: The rotating disk (17) is rotatably connected to the mounting seat (15).

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