Three-seal integrated box plate hydraulic lifting and overturning trolley device and test method

Abstract

The present application belongs to the technical field of high and low temperature vibration test, and particularly relates to a three-combined sealing box plate hydraulic lifting and overturning trolley device and a test method; comprising a trolley base, a folding and lengthening wheel frame, a hydraulic lifting mechanism, a hydraulic rotating mechanism and a bearing working frame; the present application avoids the function that cannot be realized when the existing trolley is used to install and test the sealing box plate, can easily achieve the purpose of installing the three-combined sealing box plate for test, saves manpower, greatly improves the convenience and safety of the sealing box plate installation; in the process of installing the sealing box plate by using the designed three-combined sealing box plate hydraulic lifting and overturning trolley test method, the problem of uncoordinated operation of the operator is avoided, and only one person can complete the installation and debugging, avoiding the safety hazard in operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of high and low temperature vibration testing, and in particular relates to a three-integrated sealed box plate hydraulic lifting and flipping trolley device and a testing method. Background Art

[0002] The two three-in-one high and low temperature test chambers installed at the test site can be used in conjunction with the horizontal and vertical states of the vibration table to conduct high and low temperature vibration tests, and can also run high and low temperature tests independently. Therefore, this high and low temperature chamber can conduct high and low temperature tests under three working conditions, including the horizontal state of the vibration table + temperature chamber test, the vertical state of the vibration table + temperature chamber test, and the independent temperature chamber test, a total of three high and low temperature test conditions. Each time a test is carried out under different high and low temperature test conditions, it is necessary to replace the sealing box plate 6 at the bottom of the temperature chamber to adapt to different working conditions. However, the sealing box plate 6 is large in size and heavy in weight. Its dimensions are 2640X1820X170, and its weight can reach 80kg. The installation height is within the space range of 800-1300mm from the ground. Therefore, each replacement requires the cooperation of at least four people, which is particularly time-consuming and labor-intensive. In addition, during installation, four people need to cooperate with each other to lift the sealing box plate 6 and push it into the fixed slide grooves on both sides, which poses certain work safety risks.

[0003] Most of the mobile trolleys currently used in the industry are horizontal mobile trolleys and horizontal lifting mobile trolleys. Their functions are relatively simple, and their shapes and sizes cannot meet the requirements for installing the three-in-one sealed box panel 6 for testing. If the existing sealed box panel 6 is to be installed, it must be able to achieve independent vertical lifting and horizontal flipping functions; and it must be adapted to the shape and size range of the sealed box panel 6 and the installation process requirements, and it must be able to meet the requirements of fixing and installing the sealed box panel 6 without interfering with the box body installation part during the installation and fixing process. However, the current mobile trolleys cannot achieve this. Summary of the Invention

[0004] In order to overcome the above problems, the present invention provides a three-integrated sealed box panel hydraulic lifting and flipping trolley device and testing method; during the test process, it can not only improve work efficiency and save manpower, but also avoid the risk of incoordination among workers during the installation process and improve work safety.

[0005] A three-integrated sealed box panel hydraulic lifting and flipping trolley device, including a trolley base 1, a folding and extending wheel frame 2, a hydraulic lifting mechanism 3, a hydraulic rotating mechanism 4, and a load-bearing working frame 5, wherein the trolley base 1 is respectively provided with a folding and extending wheel frame 2 at the four corners, and the trolley base 1 is respectively provided with a hydraulic lifting mechanism 3 at the front and rear ends. The hydraulic lifting mechanism 3 includes a lifting hydraulic cylinder 31, an extension column 34, a guide diagonal brace 35, and a guide clamp 36, wherein the lifting hydraulic cylinder 31 is fixed to the trolley base 1, and an extension column 34 is fixed to the movable end of the lifting hydraulic cylinder 31, one end of the guide diagonal brace 35 is connected to the trolley base 1, and the other end is connected to the guide clamp 36, and the other end of the guide clamp 36 is sleeved outside the extension column 34;

[0006] The hydraulic rotating mechanism 4 includes a rotating hydraulic cylinder 41, a rotating support cylinder connecting seat 42, a rotating shaft seat 45, and a rotating shaft frame 46, wherein one end of the rotating shaft seat 45 is fixed to the extended column 34, and the other end is provided with a bearing 451, and the rotating shaft frame 46 is a U-shaped square groove frame, and a rotating shaft 461 is provided on the outer side of one end of the U-shaped square groove frame, and the rotating shaft 461 is fitted and connected to the bearing 451 at the other end of the rotating shaft seat 45; the movable end of the rotating hydraulic cylinder 41 is fixed to the rotating support cylinder connecting seat 42, and the other end is fixed to the trolley base 1;

[0007] The bearing working frame 5 includes a bearing frame body 51, a lower fixed frame 52, an upper fixed frame 53, and a rotating support cylinder connecting seat mounting beam 54, wherein a plurality of lower fixed frames 52 are fixed at the bottom of the bearing frame body 51, and a plurality of upper fixed frames 53 are fixed at the top. A rotating support cylinder connecting seat mounting beam 54 is provided at the lower part of the bearing frame body 51, and the rotating support cylinder connecting seat mounting beam 54 is connected to the rotating support cylinder connecting seat 42 at the movable end of the rotating hydraulic cylinder 41; the connecting beams at both ends of the bearing frame body 51 are respectively fixed in the U-shaped square groove frame corresponding to the rotating shaft frame 46.

[0008] The trolley base 1 includes a primary base frame 11, a steel plate 12, a universal wheel 13 and an extended trolley handle 14, wherein the steel plate 12 is fixed on the primary base frame 11, and the primary base frame 11 is provided with a universal wheel 13 at the bottom, and an extended trolley handle 14 is provided on one side of the steel plate 12.

[0009] The primary base frame 11 is a rectangular frame, wherein a foldable extension wheel frame 2 is respectively provided at the four corners of the rectangular frame.

[0010] The folding extension wheel frame 2 comprises an extension frame body 21, a rotating positioning frame 22, a counterbore folding page 23, a same-side positioning frame 24, a positioning frame 25, a same-side positioning pin 26 and a positioning pin 27, wherein the rotating positioning frame 22 is fixed at one end of the extension frame body 21, and same-side positioning frames 24 and positioning frames 25 are respectively arranged on the upper two sides of the rotating positioning frame 22, the extension frame body 21 is connected with the long side of the first base frame 11 through the counterbore folding page 23, when the folding extension wheel frame 2 is in the unfolded state, the same-side positioning pin 26 is sequentially inserted into the positioning holes on the long side of the first base frame 11 after passing through the same-side positioning frame 24 and the rotating positioning frame 22, when the folding extension wheel frame 2 is in the folded state, the positioning pin 27 is sequentially inserted into the positioning holes on the long side of the first base frame 11 after passing through the positioning frame 25 and the rotating positioning frame 22, and a universal wheel 13 is arranged on the bottom outer side of the extension frame body 21.

[0011] The rotating positioning frame 22 is an L-shaped frame body.

[0012] The hydraulic lifting mechanism 3 further comprises a first pedal hydraulic pump 32 and a first manual pressure relief handle 33, wherein the oil inlet of the lifting hydraulic cylinder 31 is connected with the oil outlet of the first pedal hydraulic pump 32 through an oil pipe, and the oil return port of the lifting hydraulic cylinder 31 is connected with the oil inlet of the first pedal hydraulic pump 32 through an oil pipe; the first pedal hydraulic pump 32 is fixed on the left side of the trolley base 1, and the pressure relief valve of the first pedal hydraulic pump 32 is connected with the first manual pressure relief handle 33 fixed on the trolley base 1 through a pull wire.

[0013] The rotating shaft seat 45 is internally provided with a stand 47, the U-shaped square groove frame sidewall of the rotating shaft frame 46 below the rotating shaft 461 is provided with a semicircular stop limiting plate 462, the semicircular stop limiting plate 462 is provided with an arc-shaped groove 452, and the stand 47 is fitted in the arc-shaped groove 452.

[0014] The rotating shaft seat 45 is provided with three semicircular grooves 452 on the other end, wherein the grooves 452 at the two ends are respectively provided with bearings 451, the bearings 451 are fixed on the rotating shaft seat 45 through bearing bushes 453, and the rotating shaft 461 on the rotating shaft frame 46 is fitted and connected in the bearings 451 in the first groove 452, the second groove 452 and the third groove 452.

[0015] The hydraulic rotating mechanism 4 further comprises a second pedal hydraulic pump 43 and a second manual pressure relief handle 44, wherein the oil inlet of the rotating hydraulic cylinder 41 is connected with the oil outlet of the second pedal hydraulic pump 43 through an oil pipe, and the oil return port of the rotating hydraulic cylinder 41 is connected with the oil inlet of the second pedal hydraulic pump 43 through an oil pipe; the second pedal hydraulic pump 43 is fixed on the right side of the trolley base 1, and the pressure relief valve of the second pedal hydraulic pump 43 is connected with the second manual pressure relief handle 44 fixed on the trolley base 1 through a pull wire.

[0016] The upper fixing frame 53 includes a stop rod 531, a stop rod handle 532, a stop plate 533, and a fixed plate 534, wherein the fixed plate 534 is provided with an L-shaped groove 535, one end of the stop rod 531 is fixed with the stop plate 533, and the other end passes through the horizontal groove above the L-shaped groove 535 and is connected to the stop rod handle 532, and the end of the stop rod handle 532 is provided with a spring mounting hole 5321, and the spring mounting hole 5321 is connected to the spring fixing column 536 on the fixed plate 534 through a spring. Under the action of the spring, the stop plate 533 at the front end of the stop rod 531 is in a horizontal state at this time.

[0017] The ends of the lower fixing frame 52 and the upper fixing frame 53 that are not fixed to the supporting frame body 51 are provided with ridge-shaped protrusions.

[0018] A method for using a hydraulic lifting and turning trolley device for a three-integrated sealed box panel, including the following contents:

[0019] Step 1: Extend the trolley handle 14 to push the trolley device into the bottom of the sealed box plate 6 placed vertically on the shelf; make the lower fixing frame 52 of the supporting working frame 5 stuck on the lower edge of the sealed box plate 6,

[0020] Step 2: Use the stopper handle 532 to drive the stopper rod 531 to slide into the vertical groove at the lower end of the L-shaped groove 535 on the fixing plate 534. Under the action of the spring, the stopper plate 533 at the front end of the stopper rod 531 changes to a vertical direction, clamping the sealing box plate 6; fix the sealing box plate 6 on the supporting frame body 51, ensuring that the sealing box plate 6 can be turned over together with the supporting frame body 51;

[0021] Step 3: Pinch the second manual pressure relief handle 44 of the hydraulic rotating mechanism 4 by hand to put the rotating hydraulic cylinder 41 in the pressure relief state, and at the same time, step on the first foot hydraulic pump 32 reciprocatingly with your foot to extend the telescopic end of the lifting hydraulic cylinder 31 upward, thereby causing the supporting frame body 51 to drive the sealing box plate 6 to rise, so that the sealing box plate 6 moves away from its original position to reach the desired height;

[0022] Step 4: Move the trolley device by extending the trolley handle 14. After the trolley device moves to a spacious position, unfold the foldable extension wheel frame 2, that is, pull out the positioning pin 27 from the positioning hole on the long side of the primary base frame 11, and pass the ipsilateral positioning pin 26 through the ipsilateral positioning frame 24 and the rotating positioning frame 22 in sequence, and then fit it into the positioning hole on the long side of the primary base frame 11;

[0023] Step five: Use your foot to reciprocately step on the second foot hydraulic pump 43, and the movable end of the rotary hydraulic cylinder 41 will retract downward, so that the supporting frame body 51 will rotate into a horizontal state, so that the sealed box plate 6 is aligned with the sealing box plate mounting groove position of the three-in-one high and low temperature test chamber, and by pushing the trolley device, the sealed box plate 6 is pushed into the sealing box plate mounting groove of the three-in-one high and low temperature test chamber, the sealed box plate 6 is fixed, the hatch of the three-in-one high and low temperature test chamber is closed, and the test is started.

[0024] In step three, if the height of the sealed box plate 6 needs to be lowered, the first manual pressure relief handle 33 is pressed to relieve the pressure of the lifting hydraulic cylinder 31, and its telescopic end moves downward, thereby adjusting the height of the sealed box plate 6 to be lowered.

[0025] Beneficial effects of the present invention:

[0026] The present invention avoids the functions that cannot be realized by the existing trolley during the installation test of the sealed box panel, and can easily achieve the purpose of installing the three-in-one sealed box panel for testing, saving manpower and greatly improving the convenience and safety of the installation of the sealed box panel.

[0027] In the process of installing the sealed box panels using the designed three-in-one sealed box panel hydraulic lifting and flipping trolley test method, the problem of uncoordinated cooperation among operators is avoided. Only one person is needed to complete the installation and debugging, avoiding safety hazards in operation and saving human resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings used in the description of the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 The figure is a schematic structural diagram of the device of the present invention without the supporting working frame.

[0030] Figure 2 It is a schematic diagram of the load-bearing working frame structure of the device of the present invention.

[0031] Figure 3 This is a schematic structural diagram of the hydraulic lifting mechanism of the device of the present invention.

[0032] Figure 4 This is a schematic diagram of the foldable and extended wheel frame structure of the device of the present invention.

[0033] Figure 5 It is a partial structural diagram of the hydraulic rotating mechanism of the device of the present invention.

[0034] Figure 6 Fig. 2 is a schematic view of another part of the structure of the device. Figure 5

[0035] Figure 7 Fig. 3 is a schematic view of another part of the structure of the device. Figure 5

[0036] Figure 8 Fig. 4 is a schematic view of the structure of the carrying work frame of the device.

[0037] Figure 9 Fig. 5 is a schematic view of the structure of the trolley base of the device.

[0038] Figure 10 Fig. 6 is a schematic view of the use state of the device.

[0039] Fig. 6 is a schematic view of the use state of the device. Wherein: trolley base 1, first level base frame 11, steel plate 12, universal wheel 13, extended trolley handle 14, folding extended wheel frame 2, extended frame body 21, rotating positioning frame 22, counterbore folding page 23, same side positioning frame 24, positioning frame 25, same side positioning pin 26, positioning pin 27, hydraulic lifting mechanism 3, lifting hydraulic cylinder 31, first foot hydraulic pump 32, first manual pressure release handle 33, lengthened stand 34, guide inclined strut 35, guide clamp 36, hydraulic rotating mechanism 4, rotating hydraulic cylinder 41, rotating support cylinder connecting seat 42, second foot hydraulic pump 43, second manual pressure release handle 44, rotating shaft seat 45, bearing 451, groove 452, bearing bush 453, rotating shaft frame 46, rotating shaft 461, semicircular stop limiting plate 462, stand 47, carrying work frame 5, carrying frame body 51, lower fixing frame 52, upper fixing frame 53, stop rod 531, stop rod handle 532, spring mounting hole 5321, stop plate 533, fixing plate 534, L-shaped sliding groove 535, rotating support cylinder connecting seat mounting cross beam 54. DETAILED DESCRIPTION

[0040] The application will be further described below in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the application, and are not a limitation of the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0041] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.​​

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0044] Example 1

[0045] A three-integrated sealed box plate hydraulic lifting and turning trolley device, such as Figure 1-9 As shown, it includes a trolley base 1, a folding and extending wheel frame 2, a hydraulic lifting mechanism 3, a hydraulic rotating mechanism 4, and a load-bearing working frame 5, wherein the folding and extending wheel frames 2 are respectively provided at the four corners of the trolley base 1, and the front and rear ends of the trolley base 1 are respectively provided with hydraulic lifting mechanisms 3, the hydraulic lifting mechanism 3 includes a lifting hydraulic cylinder 31, an extension column 34, a guide diagonal brace 35, and a guide clamp 36, wherein the lifting hydraulic cylinder 31 is fixed to the steel plate 12 of the trolley base 1, and the extension column 34 is fixed to the movable end of the lifting hydraulic cylinder 31, one end of the guide diagonal brace 35 is connected to the steel plate 12 of the trolley base 1, and the other end is connected to the guide clamp 36, and the other end of the guide clamp 36 is sleeved outside the extension column 34;

[0046] The hydraulic rotating mechanism 4 includes a rotating hydraulic cylinder 41, a rotating support cylinder connecting seat 42, a rotating shaft seat 45, and a rotating shaft frame 46, wherein one end of the rotating shaft seat 45 is fixed to the extended column 34, and the other end is provided with a bearing 451, and the rotating shaft frame 46 is a U-shaped square groove frame, and a rotating shaft 461 is provided on the outer side of one end of the U-shaped square groove frame, and the rotating shaft 461 is fitted and connected to the bearing 451 at the other end of the rotating shaft seat 45; a rotating support cylinder connecting seat 42 is fixed to the movable end of the rotating hydraulic cylinder 41, and the other end is fixed to the steel plate 12 of the trolley base 1 through the rotating support cylinder connecting seat 42;

[0047] The bearing working frame 5 includes a bearing frame body 51, a lower fixed frame 52, an upper fixed frame 53, and a rotating support cylinder connecting seat mounting beam 54, wherein a plurality of lower fixed frames 52 are fixed at the bottom of the bearing frame body 51, and a plurality of upper fixed frames 53 are fixed at the top. A rotating support cylinder connecting seat mounting beam 54 is provided at the lower part of the bearing frame body 51, and the rotating support cylinder connecting seat mounting beam 54 is connected to the rotating support cylinder connecting seat 42 on the movable end of the rotating hydraulic cylinder 41; the connecting beams at both ends of the bearing frame body 51 are respectively fixed in the U-shaped square groove frame corresponding to the rotating shaft frame 46.

[0048] The trolley base 1 includes a primary base frame 11, a steel plate 12, universal wheels 13 and an extended trolley handle 14, wherein the steel plate 12 is fixed on the primary base frame 11, and universal wheels 13 are respectively provided at the four corners of the bottom of the primary base frame 11, and an extended trolley handle 14 is provided on one side of the steel plate 12.

[0049] The primary base frame 11 is a rectangular frame, wherein a foldable extension wheel frame 2 is respectively provided at the four corners of the rectangular frame.

[0050] The folding extension wheel frame 2 includes an extension frame body 21, a rotating positioning frame 22, a countersunk hinge 23, a same-side positioning frame 24, a positioning frame 25, a same-side positioning pin 26 and a positioning pin 27, wherein the rotating positioning frame 22 is fixed to the end of the extension frame body 21, and the same-side positioning frame 24 and the positioning frame 25 are respectively provided on both sides above it. The inner side of the extension frame body 21 is connected to the long side end of the primary base frame 11 through the countersunk hinge 23. When the folding extension wheel frame 2 is in the unfolded state, the same-side positioning pin 26 passes through the same-side positioning frame 24 and the rotating positioning frame 22 in sequence and then fits into the positioning hole on the long side of the primary base frame 11. When the folding extension wheel frame 2 is in the folded state, the positioning pin 27 passes through the positioning frame 25 and the rotating positioning frame 22 in sequence and then fits into the positioning hole on the long side of the primary base frame 11; and the outer side of the bottom of the extension frame 21 is also provided with a universal wheel 13.

[0051] The rotating positioning frame 22 is an L-shaped frame.

[0052] The hydraulic lifting mechanism 3 also includes a first foot-operated hydraulic pump 32 and a first manual pressure relief handle 33. The oil inlet of the lifting hydraulic cylinder 31 is connected to the oil outlet of the first foot-operated hydraulic pump 32 via an oil pipe. When the first foot-operated hydraulic pump 32 discharges oil, the lifting hydraulic cylinder 31 receives oil, and the lifting hydraulic cylinder 31 begins to extend, achieving a lifting action and raising the height of the table. The oil return port of the lifting hydraulic cylinder 31 is connected to the oil inlet of the first foot-operated hydraulic pump 32 via an oil pipe. When the first foot-operated hydraulic pump 32 releases pressure, the lifting hydraulic cylinder 31 returns oil, and the lifting hydraulic cylinder 31 begins to retract, achieving a lowering action and lowering the height of the table. The first foot-operated hydraulic pump 32 is fixed to the left side of the steel plate 12 of the trolley base 1, and the pressure relief valve of the first foot-operated hydraulic pump 32 is connected to the first manual pressure relief handle 33 fixed to the extended trolley handle 14 of the trolley base 1 via a pull wire.

[0053] A column 47 is provided on the inner side of the rotating shaft seat 45, and a semicircular stop plate 462 is provided on the side wall of the U-shaped square groove frame of the rotating shaft frame 46 below the rotating shaft 461. An arc-shaped groove 452 is provided on the semicircular stop plate 462, and the column 47 fits in the arc-shaped groove 452.

[0054] The other end of the rotating shaft seat 45 is provided with three semicircular grooves 452, wherein bearings 451 are respectively provided in the grooves 452 at the two ends, and the bearings 451 are fixed to the rotating shaft seat 45 through bearing shells 453. The rotating shaft 461 on the rotating shaft frame 46 is fitted and connected to the bearings 451 in the first groove 452, the second groove 452 and the third groove 452.

[0055] The hydraulic rotating mechanism 4 also includes a second foot-operated hydraulic pump 43 and a second manual pressure relief handle 44, wherein the oil inlet of the rotating hydraulic cylinder 41 and the oil outlet of the second foot-operated hydraulic pump 43 are connected by an oil pipe. When the second foot-operated hydraulic pump 43 discharges oil, the rotating hydraulic cylinder 41 takes in oil, and the rotating hydraulic cylinder 41 starts to extend, realizing a lifting action and adjusting the angle between the table and the horizontal plane; the oil return port of the rotating hydraulic cylinder 41 and the oil inlet of the second foot-operated hydraulic pump 43 are connected by an oil pipe. When the second foot-operated hydraulic pump 43 releases pressure, the rotating hydraulic cylinder 41 returns oil, and the rotating hydraulic cylinder 41 starts to contract, realizing a lowering action and increasing the angle between the table and the horizontal plane; the second foot-operated hydraulic pump 43 is fixed to the right side of the steel plate 12 of the trolley base 1, and the pressure relief valve of the second foot-operated hydraulic pump 43 is connected to the second manual pressure relief handle 44 fixed at the extended trolley handle 14 of the trolley base 1 through a pull wire.

[0056] The upper fixed frame 53 includes a stop rod 531, a stop rod handle 532, a stop plate 533, and a fixed plate 534, wherein the fixed plate 534 is provided with an L-shaped groove 535, one end of the stop rod 531 is fixed with the stop plate 533, and the other end passes through the horizontal groove above the L-shaped groove 535 and is connected to the stop rod handle 532, and the end of the stop rod handle 532 (the stop rod handle 532 is located on the fixed plate 534 on the other side of the stop rod 531) is provided with a spring mounting hole 5321, and the spring mounting hole 5321 is connected to the spring fixing column 536 on the fixed plate 534 through a spring. Under the action of the spring, the stop plate 533 at the front end of the stop rod 531 is in a horizontal state at this time.

[0057] The ends of the lower fixing frame 52 and the upper fixing frame 53 that are not fixed to the supporting frame body 51 are provided with ridge-shaped protrusions.

[0058] A method for using a three-integrated sealed box panel hydraulic lifting and turning trolley device, such as Figure 10 As shown, including the following:

[0059] Step 1: Extend the trolley handle 14 to push the trolley device into the bottom of the sealed box plate 6 placed vertically on the shelf; make the lower fixing frame 52 of the supporting working frame 5 stuck on the lower edge of the sealed box plate 6,

[0060] Step 2: Use the stopper handle 532 to drive the stopper rod 531 to slide into the vertical groove at the lower end of the L-shaped groove 535 on the fixing plate 534. Under the action of the spring, the stopper plate 533 at the front end of the stopper rod 531 changes to a vertical direction, clamping the sealing box plate 6; fix the sealing box plate 6 on the supporting frame body 51, ensuring that the sealing box plate 6 can be turned over together with the supporting frame body 51;

[0061] Step 3: Pinch the second manual pressure relief handle 44 of the hydraulic rotating mechanism 4 by hand to put the rotating hydraulic cylinder 41 in the pressure relief state, and at the same time, step back and forth on the first foot hydraulic pump 32 of the hydraulic lifting mechanism 3 with your foot. The telescopic end of the lifting hydraulic cylinder 31 extends upward, thereby causing the supporting frame body 51 to drive the sealing box plate 6 to rise, so that the sealing box plate 6 moves away from its original position to the desired height;

[0062] Step 4: Move the trolley device by extending the trolley handle 14. After the trolley device moves to a spacious position, unfold the foldable extension wheel frame 2, that is, pull out the positioning pin 27 from the positioning hole on the long side of the primary base frame 11, and pass the ipsilateral positioning pin 26 through the ipsilateral positioning frame 24 and the rotating positioning frame 22 in sequence, and then fit it into the positioning hole on the long side of the primary base frame 11;

[0063] Step five: Use your feet to reciprocately step on the second foot hydraulic pump 43 of the hydraulic rotating mechanism 4, and the movable end of the rotating hydraulic cylinder 41 will retract downward, so that the supporting frame body 51 will rotate to a horizontal state, so that the sealed box plate 6 is aligned with the sealing box plate mounting groove position of the three-in-one high and low temperature test chamber, and by pushing the trolley device, the sealed box plate 6 is pushed into the sealing box plate mounting groove of the three-in-one high and low temperature test chamber, the sealed box plate 6 is fixed, the hatch of the three-in-one high and low temperature test chamber is closed, and the test is started.

[0064] In step three, if the height of the sealed box plate 6 needs to be lowered, the first manual pressure relief handle 33 is pressed to relieve the pressure of the lifting hydraulic cylinder 31, and the telescopic end thereof moves downward, thereby adjusting the height of the sealed box plate 6.

[0065] Example 2

[0066] Trolley base 1: The trolley base 1 is made of 80X80 aluminum profile or square steel, and can also be made of other load-bearing objects. The first-level size of the base meets 2 / 3 of the length and width of the sealed box plate 6 in both the length and width directions, ensuring the stability of the trolley when it is stationary and load-bearing when the folding wheel frame is not opened. It is defined as a first-level base in this article. The trolley running wheels use universal wheels 13 to ensure the flexibility of the trolley. Four folding and extending wheel frames 2 are installed in the front and rear directions of the basic size of the trolley base 1, that is, the first-level base. The length of the folding and extending wheel frame 2 is designed to be equal to or slightly larger than the width of the sealed box plate 6 based on the overall size of the wheel frame when it is unfolded, ensuring the stability of the trolley during the load-bearing movement of the trolley. The folding and extending wheel frame 2 adopts the design concept of right-angle rotation and positioning pin 27 for cooperation, and is defined as a rotating positioning frame 2522. When the folding and extending wheel frame 2 is in the unfolded position, the positioning pin 27 on the same side as the folding and extending wheel frame 2 is inserted into the positioning hole; when the folding and extending wheel frame 2 is in the folded position, another positioning pin 27 is inserted into the positioning hole, and the folding and extending wheel frame 2 is locked in the folded position. The two positioning pins 27 of the rotating positioning frame 2522 share a positioning hole. Through the principle of equal axial rotation radius, the two positioning pins 27 can be inserted into this positioning hole under different working conditions of the folding and extending wheel frame 2. The folding and extending wheel frame 2 is connected to the first-level base frame 11 through the countersunk hinge 23. A steel plate 12 is added to the first-level base frame 11. The steel plate 12 serves as the installation and bearing of some components above the base and the aesthetics. An extended trolley handle 14 is installed on one side frame in the length direction of the first-level base frame 11 for use in moving the trolley and subsequent installation of a manual hydraulic unloading handle.

[0067] Hydraulic lifting mechanism 3: The hydraulic lifting mechanism 3 consists of a lifting hydraulic cylinder 31, a first foot-operated hydraulic pump 32, a first manual pressure relief handle 33, connecting oil pipes, an extended column 34, and a guide brace 35. The base of the lifting hydraulic cylinder 31 is connected to the trolley base 1 and fixed in the middle of the first-level base width. The lifting hydraulic cylinder 31 must have a telescopic stroke sufficient to allow the space for the sealed box panel 6 to rise and fall, and a load-bearing capacity greater than or equal to the weight of the sealed box panel 6. Two lifting hydraulic cylinders 31 are installed on the two end frames of the trolley base 1. The lifting and lowering oil pressure of the lifting hydraulic cylinders 31 is connected to the same first foot-operated hydraulic pump 32 via a pipeline, ensuring synchronized lifting of the two lifting hydraulic cylinders 31. The first foot-operated hydraulic pump 32 is installed on the left side of the trolley handle for ease of use. The pressure relief valve of the first foot-operated hydraulic pump 32 is connected to the first manual pressure relief handle 33 fixed to the trolley handle via a pull cable, increasing the convenience of pressure relief. An 80x80 aluminum profile extension column 34 is fixed to the top of the lifting hydraulic cylinder 31. The purpose is to ensure that the length of the aluminum profile plus the length of the lifting hydraulic cylinder 31 is slightly greater than 1 / 2 of the width of the sealing box plate 6 when the lifting hydraulic cylinder 31 is at the lowest end. The size difference between the aluminum profile and the sealing box plate 61 / 2 can be controlled between 50-100mm. This ensures that the load-bearing working surface does not interfere with the trolley base 1 when flipping, while lowering the center of gravity as much as possible to improve the stability of the trolley. A guide brace 35 is installed on the extension column 34. One end of the guide brace 35 is connected to the first-level trolley base 1, and the other end is connected to the aluminum profile guide clamp 36. The guide brace 35 is installed on the trolley handle side to avoid interference with the sealing box plate 6. The guide clamp 36 is sleeved on the aluminum profile and plays an auxiliary guiding role in the lifting and lowering of the aluminum profile. Its installation height must exceed the maximum stroke height of the lifting hydraulic cylinder 31. The function of the guide brace 35 is to guide and strengthen.

[0068] Hydraulic rotating mechanism 4: The hydraulic rotating mechanism 4 is composed of a rotating hydraulic cylinder 41, a rotating support cylinder connecting seat 42, a second foot-operated hydraulic pump 43, a second manual pressure relief handle 44, a connecting oil pipe, a rotating shaft seat 45, a rotating shaft frame 46, etc. One end of the rotating shaft seat 45 is connected to the extended column 34, and the other end is made into three semicircular grooves 452. The front and rear grooves 452 are used to place bearings 451 and are fixed with bearing shells 453. At the same time, a 2cm high M10 column 47 is machined on the inner side of the rotating shaft seat 45. The middle position of the axis side of the rotating shaft frame 46 is machined into a protrusion that matches the middle groove 452 of the rotating shaft seat 45, so that there is a gap of 0.5-1mm in the middle when the two are matched. When matched with the rotating shaft seat 45, it plays a role in preventing the rotating shaft frame 46 from moving laterally. The other end of the rotating shaft frame 46 is processed into a U-shaped square groove structure so that the U-shaped square groove can be matched with the 80X80 aluminum profile to install the load-bearing working surface. The center position of the U-shaped square groove should be slightly higher than the center position of the rotating shaft 461 to prevent the load-bearing working surface from interfering with the vertical part of the hydraulic lifting mechanism 3 when the load is in a vertical state.

[0069] The rotation centerline is the centerline of the rotating shaft 461. The center of the U-shaped square channel is defined as the center of the welded surface of the U-shaped square channel frame and the rotating shaft 461. The rotating shaft 461 is welded to the rotating shaft seat 45. This defines the vertical fixed position of the U-shaped square channel frame and the rotating shaft 461 when the U-shaped square channel frame's U-shaped opening is facing upward. This means that the center point of the U-shaped square channel frame should be slightly higher than the centerline of the rotating shaft 461.

[0070] A quarter-circular stop plate 462 is machined into the axial side of the U-shaped square groove at its base. This allows the device to mate with the inner column 47 of the rotating shaft seat 45, ensuring that the load-bearing working surface's trajectory ranges from vertical to horizontal. The rotating hydraulic cylinder 41 is a multi-section cylinder. One end of the cylinder is connected to the rotating support cylinder connector 42, fixed to the center of the back side of the load-bearing working surface. The other end is connected to the rotating support cylinder connector 42 and fixed to the primary base of the hydraulic lift and tilting trolley. The rotating hydraulic cylinder 41 is installed to ensure that the load-bearing working surface is vertical when retracted and horizontal when fully extended. A second foot-operated hydraulic pump 43 is mounted to the right of the trolley handle and is connected to the rotating hydraulic cylinder 41 via a connecting oil pipe. The pressure relief valve of the second foot-operated hydraulic pump 43 is connected by a cable to a second manual pressure relief handle 44 fixed to the trolley handle, enhancing the convenience of pressure relief.

[0071] Load-bearing working frame 5: The load-bearing working frame 5 consists of a load-bearing frame body 51, a lower fixed frame 52, an upper fixed frame 53, a rotating support cylinder connecting seat mounting crossbeam 54, etc. The load-bearing frame body 51 is made of 80X80 aluminum profile to ensure sufficient strength. The width of the load-bearing frame body 51 is adapted to the installation position width of the rotating shaft frame 46, and the length is the same as the width of the sealing box plate 6. There are three lower fixed frames 52, which are evenly installed at the lower end of the load-bearing frame body 51. The length of the load-bearing part of the lower fixed frame 52 meets the width of the sealing box plate 6. One end of the lower fixed frame 52 is connected to the load-bearing frame body 51, and the other end is processed into a ridge-like protrusion to prevent the sealing box plate 6 from falling off. There are two upper fixed frames 53, which are installed on the top of the load-bearing frame body 51. The upper fixed frame 53 is designed as an L-shaped groove-shaped stop slide rod, which consists of a stop rod 531, a stop rod handle 532, a stop plate 533, a fixed plate 534, and a spring. One end of the stop rod 531 is machined into a horizontal stop plate 533. The other end of the stop rod 531 passes through the L-shaped groove on the fixed plate 534 and is connected to the stop rod handle 532. A spring mounting hole 5321 is machined at the base of the stop rod handle 532. The mounting hole is connected to the spring fixing column on the fixed plate 534 via a spring. The requirements for the spring are that the spring must provide sufficient pulling force on the stop rod 531 at both ends of the L-shaped groove, and the distance from both ends of the L-shaped groove to the spring fixing plate 534 must be the shortest distance, ensuring that the stop rod 531 will not easily slide at both ends of the L-shaped groove without external interference. At the same time, the stop rod handle 532 should be able to slide in the L-shaped groove by hand. The height of the horizontal groove of the L-shaped groove and the upper end of the supporting frame should be greater than 1 / 2 the horizontal width of the stop plate 533 to ensure that the stop rod 531 will not interfere with the sealing box plate 6 when the stop plate 533 at the upper end of the L-shaped groove becomes horizontal. When the stop rod 531 is at the upper end of the L-shaped slot 535, the spring force causes the stop plate 533 at the front end of the stop rod 531 to shift horizontally, reaching a height greater than the upper end of the support beam. When the stop rod 531 is at the lower end of the L-shaped slot 535, the spring force also causes the stop plate 533 at the front end of the stop rod 531 to shift vertically, securing and clamping the sealing box panel 6. At the same time, when the stop plate 533 is at its uppermost position, the distance between the lower fixing frame 52 and the upper fixing frame 53 must be sufficient to accommodate the sealing box panel 6. A crossbeam is installed in the lower half of the support frame body 51 to facilitate the installation of the rotary support cylinder connector 42. The support frame body 51 can be a frame structure, or a flat tabletop can be added to the frame.

[0072] When in use, manually extend the trolley handle 14 to push the trolley device into the bottom of the sealed box plate 6 placed vertically on the shelf, ensuring that the middle position of the sealed box plate 6 is basically aligned with the middle position of the trolley device; make the lower fixing frame 52 of the load-bearing working surface clamp the lower edge of the sealed box plate 6, fit the sealed box plate 6 with the load-bearing working surface, and use the upper fixing frame 53 of the load-bearing working surface to fix the sealed box plate 6 on the load-bearing working surface, ensuring that the sealed box plate 6 can be turned over together with the load-bearing working surface; pinch the pressure relief handle 2 of the hydraulic rotating mechanism 4 by hand to put the rotating hydraulic cylinder in the pressure relief state, and at the same time use the foot to reciprocate the hydraulic oil pump 1 of the hydraulic lifting device. The load-bearing working surface will rise simultaneously with the sealed box plate 6, allowing the sealed box plate 6 to be separated from the placement bracket; the trolley can be moved to a spacious position and the support wheel frame can be opened; the hydraulic oil pump 2 of the hydraulic rotation mechanism 4 can be stepped on reciprocally with the foot to rotate the load-bearing working surface to a horizontal state; during installation, the height of the load-bearing working surface can be adjusted by the hydraulic oil pump 1 and the pressure relief handle 1, and the horizontal state of the working surface can be adjusted by the hydraulic oil pump 2 and the pressure relief handle 2; when the position and angle are adjusted to the position of the sealing box plate 6 installation slot, the sealing box plate 6 can be pushed in together with the trolley, adjusted to the installation position, the sealing box plate 6 is fixed, the hatch is closed, and the test begins. The reverse process is the disassembly test process of the sealing box plate 6.

[0073] The design and use test method of this trolley is based on the test use requirements and usage conditions. The design and test method requirements of the designed three-in-one sealed box panel 6 hydraulic lifting and flipping trolley are as follows: first, it can meet the requirements of carrying the three-in-one sealed box panel 6 to move within a certain distance on the ground, that is, load-bearing mobility; secondly, since the sealed box panel 6 is usually placed vertically, the trolley should have the function of transforming the sealed box panel 6 from a vertical state to a horizontal state, ensuring the horizontal installation, disassembly and vertical placement functional requirements of the sealed box panel 6; finally, since the three-in-one environmental chamber has a lifting function, it will stay at a different test height after each test is completed, so the height of each installation of the sealed box panel 6 is different, so the trolley is required to have a lifting function to lift the sealed box panel 6 to ensure that the lifting and installation capabilities within a certain range can be achieved.

[0074] According to the degree of satisfaction of the requirements for the use of the trolley test, the use method of the hydraulic lifting and flipping trolley test is designed to be divided into four parts, namely the trolley base 1, the hydraulic lifting mechanism 3, the hydraulic rotating mechanism 4, and the load-bearing working frame 5. Its design and use scheme is that the trolley base 1 plays the function of bearing and moving. At the same time, in order to reduce the space occupied when empty and improve the flexibility of the trolley and the stability when carrying, the trolley base 1 is designed with a folding extension wheel frame 2; the hydraulic lifting mechanism 3 can lift the load-bearing working frame 5 on the upper part of the trolley that carries the sealed box plate 6 vertically and horizontally; the hydraulic rotating mechanism 4 can convert the load-bearing working frame 5 into a horizontal and vertical state; the load-bearing working frame 5 is mainly used to grab the sealed box plate 6 to prevent the sealed box plate 6 from falling off during movement and to achieve the installation effect. The load-bearing working frame 5 is designed to bear the sealed box plate 6 in the wide direction, thus avoiding interference with the three integrated environmental chambers during installation. When in use, the four parts cooperate with each other. The process is to push the trolley into the bottom gap of the sealed box plate 6 placed vertically on the shelf, ensuring that the middle position of the sealed box plate 6 is basically aligned with the middle position of the trolley, to prevent the sealed box plate 6 from tilting and falling off during the movement; when the supporting working frame 5 grabs the sealed box plate 6, the lower fixing frame 52 designed for the supporting working frame 5 is clamped on the lower edge of the sealed box plate 6, so that the sealed box plate 6 fits the supporting working frame 5, and at the same time, the upper fixing frame 53 designed for the supporting working frame 5 is used to fix the sealed box plate 6 on the supporting working frame 5, ensuring that the sealed box plate 6 can be turned over together with the supporting working frame 5; at this time, the second manual pressure relief handle 44 of the rotating hydraulic cylinder 41 is opened to put the rotating hydraulic cylinder 41 in a pressure relief state, and the rotating hydraulic cylinder 41 is in a stress-free state. At this time, the hydraulic lifting mechanism 3 can be used to lift the supporting working frame 5 and the sealed box plate 6 vertically. When the sealing box plate 6 is raised and lowered to the approximate installation position, the second manual pressure relief handle 44 is closed, and the hydraulic flipping mechanism is used to rotate the supporting working frame 5 until it is rotated to a horizontal position. A limit device can be set at the horizontal position to prevent the flipping angle from being too large.

[0075] During the test, the trolley is fixed to the sealing box plate 6 and the sealing box plate 6 is adjusted to a horizontal state. The trolley is pushed to the installation position of the sealing box plate 6. The hydraulic lifting mechanism 3 and the hydraulic rotating mechanism 4 cooperate with each other to adjust the sealing box plate 6 to the installation height. Finally, the sealing box plate 6 is pushed into the three-integrated sealing box plate 6 installation slot to complete the installation of the sealing box plate 6. Under the three high and low temperature test conditions of the horizontal state of the vibration table + warm chamber test, the vertical state of the vibration table + warm chamber test, and the independent warm chamber test, it is only necessary to adapt to different three-integrated sealing box plates 6 and complete the installation of the sealing box plate 6 in the test process according to the above method. After the installation of the sealing box plate 6 is completed, install the test sample on the vibration table or place the sample into the test chamber, close the hatch, set the high and low temperature conditions of the test conditions, and start the test process. When it is necessary to disassemble the three-integrated sealing box plate 6, the installation steps can be reversed.

[0076] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention. These simple variations all fall within the scope of protection of the present invention.

[0077] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0078] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A three-integrated sealed box panel hydraulic lifting and turning trolley device, characterized in that: The invention comprises a trolley base (1), a folding extension wheel frame (2), a hydraulic lifting mechanism (3), a hydraulic rotating mechanism (4), and a load-bearing working frame (5), wherein the folding extension wheel frames (2) are respectively provided at the four corners of the trolley base (1), and the front and rear ends of the trolley base (1) are respectively provided with hydraulic lifting mechanisms (3), and the hydraulic lifting mechanism (3) comprises a lifting hydraulic cylinder (31), an extension column (34), a guide diagonal brace (35), and a guide clamp (36), wherein the lifting hydraulic cylinder (31) is fixed on the trolley base (1), and the extension column (34) is fixed on the movable end of the lifting hydraulic cylinder (31), one end of the guide diagonal brace (35) is connected to the trolley base (1), and the other end is connected to the guide clamp (36), and the other end of the guide clamp (36) is sleeved outside the extension column (34); The hydraulic rotating mechanism (4) comprises a rotating hydraulic cylinder (41), a rotating support cylinder connecting seat (42), a rotating shaft seat (45), and a rotating shaft frame (46), wherein one end of the rotating shaft seat (45) is fixed on the extended column (34), and the other end is provided with a bearing (451); the rotating shaft frame (46) is a U-shaped square groove frame, and a rotating shaft (461) is provided on the outer side of one end of the U-shaped square groove frame, and the rotating shaft (461) is matched and connected in the bearing (451) at the other end of the rotating shaft seat (45); the movable end of the rotating hydraulic cylinder (41) is fixed with the rotating support cylinder connecting seat (42), and the other end is fixed on the trolley base (1); The load-bearing working frame (5) comprises a load-bearing frame body (51), a lower fixed frame (52), an upper fixed frame (53), and a rotating support cylinder connecting seat mounting beam (54), wherein a plurality of lower fixed frames (52) are fixed at the bottom of the load-bearing frame body (51), and a plurality of upper fixed frames (53) are fixed at the top; a rotating support cylinder connecting seat mounting beam (54) is provided at the lower part of the load-bearing frame body (51), and the rotating support cylinder connecting seat mounting beam (54) is connected to the rotating support cylinder connecting seat (42) at the movable end of the rotating hydraulic cylinder (41); and the connecting beams at both ends of the load-bearing frame body (51) are respectively fixed in the U-shaped square groove frame of the corresponding rotating shaft frame (46).

2. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 1 is characterized in that: The trolley base (1) comprises a primary base frame (11), a steel plate (12), a universal wheel (13) and an extended trolley handle (14), wherein the steel plate (12) is fixed on the primary base frame (11), the universal wheel (13) is provided at the bottom of the primary base frame (11), and the extended trolley handle (14) is provided on one side of the steel plate (12).

3. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 2 is characterized in that: The primary base frame (11) is a rectangular frame, wherein a folding extension wheel frame (2) is provided at each of the four corners of the rectangular frame.

4. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 2 is characterized in that: The folding extension wheel frame (2) comprises an extension frame body (21), a rotating positioning frame (22), a countersunk folding leaf (23), a same-side positioning frame (24), a positioning frame (25), a same-side positioning pin (26) and a positioning pin (27), wherein the rotating positioning frame (22) is fixed to one end of the extension frame body (21), and the same-side positioning frame (24) and the positioning frame (25) are respectively provided on both sides above the rotation positioning frame (22), and the inner side of the extension frame body (21) is connected to the long side of the primary base frame (11) through the countersunk folding leaf (23). Together, when the folding extension wheel frame (2) is in the unfolded state, the same-side positioning pin (26) sequentially passes through the same-side positioning frame (24) and the rotating positioning frame (22) and then fits into the positioning hole on the long side of the primary base frame (11); when the folding extension wheel frame (2) is in the folded state, the positioning pin (27) sequentially passes through the positioning frame (25) and the rotating positioning frame (22) and then fits into the positioning hole on the long side of the primary base frame (11); and the outer side of the bottom of the extension frame body (21) is also provided with a universal wheel (13).

5. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 4 is characterized in that: The rotating positioning frame (22) is an L-shaped frame.

6. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 1 is characterized in that: The hydraulic lifting mechanism (3) further comprises a first foot-operated hydraulic pump (32) and a first manual pressure relief handle (33), wherein the oil inlet of the lifting hydraulic cylinder (31) is connected to the oil outlet of the first foot-operated hydraulic pump (32) via an oil pipe, and the oil return port of the lifting hydraulic cylinder (31) is connected to the oil inlet of the first foot-operated hydraulic pump (32) via an oil pipe; the first foot-operated hydraulic pump (32) is fixed to the left side of the trolley base (1), and the pressure relief valve of the first foot-operated hydraulic pump (32) is connected to the first manual pressure relief handle (33) fixed to the trolley base (1) via a pull line.

7. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 1 is characterized in that: A column (47) is provided on the inner side of the rotating shaft seat (45); a semicircular stop plate (462) is provided on the side wall of the U-shaped square groove frame of the rotating shaft frame (46) below the rotating shaft (461); an arc-shaped groove (452) is provided on the semicircular stop plate (462); and the column (47) is fitted in the arc-shaped groove (452).

8. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 1 is characterized in that: The other end of the rotating shaft seat (45) is provided with three semicircular grooves (452), wherein bearings (451) are respectively provided in the grooves (452) at the two ends, and the bearings (451) are fixed on the rotating shaft seat (45) through bearing bushes (453). The rotating shaft (461) on the rotating shaft frame (46) is matched and connected to the bearings (451) in the first groove (452), the second groove (452), and the third groove (452).

9. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 1 is characterized in that: The hydraulic rotating mechanism (4) further comprises a second foot-operated hydraulic pump (43) and a second manual pressure relief handle (44), wherein the oil inlet of the rotating hydraulic cylinder (41) and the oil outlet of the second foot-operated hydraulic pump (43) are connected via an oil pipe, and the oil return port of the rotating hydraulic cylinder (41) and the oil inlet of the second foot-operated hydraulic pump (43) are connected via an oil pipe; the second foot-operated hydraulic pump (43) is fixed on the right side of the trolley base (1), and the pressure relief valve of the second foot-operated hydraulic pump (43) is connected to the second manual pressure relief handle (44) fixed on the trolley base (1) via a pull line.

10. The three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 1 is characterized in that: The upper fixing frame (53) includes a stop rod (531), a stop rod handle (532), a stop plate (533), and a fixed plate (534), wherein the fixed plate (534) is provided with an L-shaped slot (535), one end of the stop rod (531) is fixed with the stop plate (533), and the other end passes through the transverse slot above the L-shaped slot (535) and is connected to the stop rod handle (532), and the end of the stop rod handle (532) is provided with a spring mounting hole (5321), and the spring mounting hole (5321) is connected to the spring fixing column (536) on the fixed plate (534) through a spring. Under the action of the spring, the stop plate (533) at the front end of the stop rod (531) is in a horizontal state at this time.

11. A method for using the three-integrated sealed box panel hydraulic lifting and turning trolley device according to any one of claims 1 to 10, characterized in that: Includes the following: Step 1: Push the trolley device into the bottom of the sealed box plate (6) placed vertically on the shelf by extending the trolley handle (14); make the lower fixing frame (52) of the supporting working frame (5) stuck on the lower edge of the sealed box plate (6), Step 2: Use the stopper handle (532) to drive the stopper rod (531) to slide into the vertical groove at the lower end of the L-shaped slide groove (535) on the fixed plate (534). Under the action of the spring, the stopper plate (533) at the front end of the stopper rod (531) changes to a vertical direction to clamp the sealing box plate (6); fix the sealing box plate (6) on the supporting frame body (51) to ensure that the sealing box plate (6) can be turned over together with the supporting frame body (51); Step 3: pinch the second manual pressure relief handle (44) of the hydraulic rotating mechanism (4) with your hand to put the rotating hydraulic cylinder (41) in a pressure relief state, and at the same time, step on the first foot hydraulic pump (32) reciprocatingly with your foot to extend the telescopic end of the lifting hydraulic cylinder (31) upward, thereby causing the supporting frame body (51) to drive the sealing box plate (6) to rise, so that the sealing box plate (6) is separated from the original position to reach the desired height; Step 4: Move the trolley device by extending the trolley handle (14). After the trolley device is moved to a spacious position, unfold the folding extension wheel frame (2), that is, pull out the positioning pin (27) from the positioning hole on the long side of the primary base frame (11), and pass the same-side positioning pin (26) through the same-side positioning frame (24) and the rotating positioning frame (22) in sequence, and then fit it into the positioning hole on the long side of the primary base frame (11); Step 5: Use your foot to reciprocately step on the second foot hydraulic pump (43), and the movable end of the rotary hydraulic cylinder (41) will shrink downward, so that the supporting frame body (51) will rotate into a horizontal state, so that the sealing box plate (6) is aligned with the sealing box plate installation groove position of the three-in-one high and low temperature test box. By pushing the trolley device, the sealing box plate (6) is pushed into the sealing box plate installation groove of the three-in-one high and low temperature test box, the sealing box plate (6) is fixed, and the hatch of the three-in-one high and low temperature test box is closed to start the test.

12. The method for using the three-comprehensive sealed box panel hydraulic lifting and turning trolley device according to claim 11 is characterized in that: In step three, if the height of the sealed box plate (6) needs to be lowered, the first manual pressure relief handle (33) is pressed to release the pressure of the lifting hydraulic cylinder (31), and its telescopic end moves downward, thereby adjusting the height of the sealed box plate (6) to be lowered.

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