Flexible detection system for metal measuring vessel capacity comparison method

Abstract

The present invention discloses a flexible detection system for the capacity comparison method of a metal measuring instrument, which relates to the technical field of metal measuring instrument capacity detection equipment. The main purpose is to provide a flexible detection system for the capacity comparison method of a metal measuring instrument, which is easy to operate, convenient to carry, and can improve the calibration efficiency. The main technical scheme of the present invention is: a flexible detection system for the capacity comparison method of a metal measuring instrument, comprising: a mobile base; a lifting component, one end of the lifting component is connected to the mobile base, and the other end has a first support platform; a lifting and rotating component, the lifting mechanism is connected to the mobile base, and the other end is connected to the second support platform, the rotating mechanism is arranged on the second support platform, and a plurality of third support platforms are arranged on the rotating mechanism; a water supply component, the water supply component is arranged between the lifting component and the rotating component; a connecting component, the two ends of the connecting component are respectively connected to a standard metal measuring instrument and a metal measuring instrument to be tested. The present invention is mainly used to detect the capacity of a metal measuring instrument.

Description

Technical Field

[0001] The invention relates to the technical field of metal measuring vessel capacity detection equipment, and in particular to a metal measuring vessel capacity comparison method flexible detection system. Background Art

[0002] Metal measuring instruments are increasingly used in local metrology technical institutions, petroleum, petrochemical, oil depots, gas stations, oil product measurement departments, scientific research and enterprise production links, in order to ensure the accuracy of capacity measurement. However, the current domestic metal capacity verification work is mostly manual with the help of tap water. Department laboratories use water tanks, but they are not recycled. The reason is that metal measuring instruments are mostly used as standards, and fast dynamic measurement cannot be used, so the growth in quantity is far less than that of flow meters. The price of laboratory verification or calibration is far from matching the labor, so the research work of standard devices lags behind. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a flexible detection system for a metal measuring vessel capacity comparison method, the main purpose of which is to provide a flexible detection system for a metal measuring vessel capacity comparison method that is easy to operate, convenient to carry, and capable of improving the calibration efficiency.

[0004] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0005] An embodiment of the present invention provides a flexible detection system for a metal measuring instrument capacity comparison method, the system comprising:

[0006] Mobile base;

[0007] A lifting component, one end of which is connected to the movable base, and the other end of which has a first support platform for placing a standard metal measuring instrument;

[0008] A lifting and rotating component, the lifting and rotating component comprises a rotating mechanism, a lifting mechanism, a second supporting platform and a plurality of third supporting platforms, the lifting mechanism is connected to the mobile base, and the other end is connected to the second supporting platform, the rotating mechanism is arranged on the second supporting platform, and the plurality of third supporting platforms are arranged on the rotating mechanism, and are used to place the metal measuring instrument to be inspected;

[0009] a water supply component, the water supply component being disposed between the lifting component and the rotating component and being used for delivering water to the standard metal measuring vessel;

[0010] A connecting component, two ends of which are respectively connected to the standard metal measuring instrument and the metal measuring instrument to be tested.

[0011] Furthermore, a control component is connected to the lifting component, the rotating mechanism, the lifting mechanism and the water supply component.

[0012] Furthermore, the water supply component includes a water supply tank, a water supply pump and a water supply pipe. The water supply tank is arranged between the lifting component and the rotating component, the water supply pump is arranged in the water supply tank, one end of the water supply pipe is connected to the water supply pump, and the other end extends to the top of the standard metal measuring instrument.

[0013] Furthermore, the water supply component also includes a first water return pipe, one end of which is connected to the metal measuring instrument to be inspected, and the other end of which extends into the water supply tank.

[0014] Furthermore, a rubber-tipped dropper component is provided on the upper portion of the standard metal measuring vessel and is connected to the water supply pipe.

[0015] Furthermore, the lifting component includes a telescopic rod and a telescopic bracket, one end of the telescopic rod is rotatably connected to the mobile base, and the other end is rotatably connected to the middle part of the telescopic bracket, one end of the telescopic bracket is rotatably connected to the mobile base, and the other end is rotatably connected to the first support platform.

[0016] Furthermore, the surface of the first support platform has a fixing buckle.

[0017] Furthermore, the rotating mechanism includes a rotating disk and a plurality of supporting rods, the rotating disk is rotatably connected to the second supporting platform, and the plurality of supporting rods are fixedly connected to the rotating disk.

[0018] Furthermore, the connecting component is a connecting hose.

[0019] Furthermore, the mobile base includes a mobile frame, mobile wheels and a push-pull handrail, the push-pull handrail is arranged at one end of the mobile frame, and the mobile wheels are arranged at the bottom of the mobile frame.

[0020] Compared with the prior art, the present invention has the following technical effects:

[0021] In the technical solution provided by the embodiment of the present invention, the function of the mobile base is to facilitate the movement of other components; the function of the lifting component is to raise or lower the standard metal measuring instrument, one end of the lifting component is connected to the mobile base, and the other end has a first support platform for placing the standard metal measuring instrument; the function of the lifting and rotating component is to raise, lower or change the position of the metal measuring instrument to be inspected, and the lifting and rotating component includes a rotating mechanism, a lifting mechanism, a second support platform and a plurality of third support platforms, the lifting mechanism is connected to the mobile base, and the other end is connected to the second support platform, the rotating mechanism is arranged on the second support platform, and the plurality of third support platforms are arranged on the rotating mechanism for placing the metal measuring instrument to be inspected. Check the metal measuring instrument; the function of the water supply component is to supply water to the standard metal measuring instrument. The water supply component is arranged between the lifting component and the rotating component, and is used to transport water to the standard metal measuring instrument; the function of the connecting component is to transport the water of the standard metal measuring instrument to the metal measuring instrument to be checked. The two ends of the connecting component are respectively connected to the standard metal measuring instrument and the metal measuring instrument to be checked. Compared with the existing technology, most of the people use tap water to directly calibrate. The department laboratory uses a water tank, but it is not recycled. The reason is that the metal measuring instrument is used as a standard for many links after all, and it is impossible to use fast dynamic measurement work, so the growth of the number is far less than that of the flow meter, and the laboratory verification or calibration The price is far from matching the amount of labor, so the research work on the standard device lags behind. In this technical solution, by setting a lifting component and a lifting and rotating component at both ends of the water supply component, the lifting component can raise or lower the standard metal measuring vessel, and multiple metal measuring vessels to be tested can be placed on the lifting and rotating component. The water supply component transports water to the standard metal measuring vessel, and then a connecting component is set between the standard metal measuring vessel and the metal measuring vessel to be tested, and the lifting component and the lifting mechanism are started to make the position of the standard metal measuring vessel higher than the position of the metal measuring vessel to be tested, so that the water in the standard metal measuring vessel flows into the metal measuring vessel to be tested, and then the valve of the metal measuring vessel to be tested is closed to disconnect the connection. The connecting component is connected, and then the liquid level height of the metal measuring instrument to be tested is read and the data is recorded. Then the lifting mechanism and the lifting component are started, and a connecting component is set between the standard metal measuring instrument and the metal measuring instrument to be tested, so that the position of the metal measuring instrument to be tested is higher than that of the standard metal measuring instrument. Then the valve of the metal measuring instrument to be tested is opened to allow the water in the metal measuring instrument to flow back to the standard metal measuring instrument. Then the liquid level height of the standard metal measuring instrument is adjusted, and the rotating mechanism is started at the same time to rotate the next metal measuring instrument to be tested to the calibration position. This can not only improve the efficiency of the calibration, but also improve the utilization efficiency of water resources, thereby achieving the technical effect of saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a flexible detection system for a metal measuring instrument capacity comparison method provided by an embodiment of the present invention;

[0023] Figure 2A schematic diagram of the structure of the usage status of a flexible detection system for a metal measuring instrument capacity comparison method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a flexible detection system for a metal measuring device capacity comparison method, the system comprising:

[0026] Mobile base 1;

[0027] A lifting component 2, one end of which is connected to the movable base 1, and the other end of which has a first support platform 23 for placing a standard metal measuring instrument 91;

[0028] The lifting and rotating component includes a rotating mechanism 31, a lifting mechanism 32, a second support platform 33 and a plurality of third support platforms 34. The lifting mechanism 32 is connected to the mobile base 1, and the other end is connected to the second support platform 33. The rotating mechanism 31 is arranged on the second support platform 33, and the plurality of third support platforms 34 are arranged on the rotating mechanism 31, and are used to place the metal measuring device 92 to be inspected;

[0029] A water supply component, which is arranged between the lifting component 2 and the rotating component and is used to deliver water to the standard metal measuring vessel 91;

[0030] The connecting component 5 has two ends connected to a standard metal measuring instrument 91 and a metal measuring instrument 92 to be tested, respectively.

[0031] In the technical solution provided by the embodiment of the present invention, the function of the mobile base 1 is to facilitate the movement of other components; the function of the lifting component 2 is to raise or lower the standard metal measuring instrument 91, one end of the lifting component 2 is connected to the mobile base 1, and the other end has a first support platform 23 for placing the standard metal measuring instrument 91; the function of the lifting and rotating component is to raise, lower or change the position of the metal measuring instrument 92 to be tested, and the lifting and rotating component includes a rotating mechanism 31, a lifting mechanism 32, a second support platform 33 and a plurality of third support platforms 34, the lifting mechanism 32 is connected to the mobile base 1, and the other end is connected to the second support platform 33, the rotating mechanism 31 is arranged on the second support platform 33, and the plurality of third support platforms 34 are arranged on the rotating mechanism 3 1, for placing the metal measuring instrument 92 to be tested; the function of the water supply component is to supply water to the standard metal measuring instrument 91, and the water supply component is arranged between the lifting component 2 and the rotating component, and is used to transport water to the standard metal measuring instrument 91; the function of the connecting component 5 is to transport the water of the standard metal measuring instrument 91 to the metal measuring instrument 92 to be tested, and the two ends of the connecting component 5 are respectively connected to the standard metal measuring instrument 91 and the metal measuring instrument 92 to be tested. Compared with the prior art, most of the people use tap water for direct verification, and the department laboratory uses a water tank, but it is not recycled. The reason is that the metal measuring instrument is used as a standard for many links after all, and it is impossible to use fast dynamic measurement work, so the growth of the number is far less than that of the flow meter, and the price of laboratory verification or calibration is high. The price is far from matching the labor, so the research work of the standard device lags behind. In this technical solution, by setting a lifting component 2 and a lifting and rotating component at both ends of the water supply component, the lifting component 2 can raise or lower the standard metal measuring vessel 91, and a plurality of metal measuring vessels 92 to be tested can be placed on the lifting and rotating component. The water supply component transports water to the standard metal measuring vessel 91, and then a connecting component 5 is set between the standard metal measuring vessel 91 and the metal measuring vessel 92 to be tested, and the lifting component 2 and the lifting mechanism 32 are started to make the position of the standard metal measuring vessel 91 higher than the position of the metal measuring vessel 92 to be tested, so that the water in the standard metal measuring vessel 91 flows into the metal measuring vessel 92 to be tested, and then the valve of the metal measuring vessel 92 to be tested is closed to disconnect the connecting component 5. Component 5, then read the liquid level height of the metal measuring instrument 92 to be tested and record the data, then start the lifting mechanism 32 and the lifting component 2, set the connecting component 5 between the standard metal measuring instrument 91 and the metal measuring instrument 92 to be tested, so that the position of the metal measuring instrument 92 to be tested is higher than the position of the standard metal measuring instrument 91, and then open the valve of the metal measuring instrument 92 to allow the water in the metal measuring instrument 92 to flow back to the standard metal measuring instrument 91, and then adjust the liquid level height of the standard metal measuring instrument 91, and at the same time start the rotating mechanism 31 to rotate the next metal measuring instrument 92 to be tested to the calibration position, which can not only improve the efficiency of calibration, but also improve the utilization efficiency of water resources, thereby achieving the technical effect of saving water resources.

[0032] The function of the mobile base 1 is to facilitate the movement of other components. The mobile base 1 also has the function of supporting other components. Optionally, the mobile base 1 includes a mobile frame, mobile wheels and a push-pull handrail. The push-pull handrail is arranged at one end of the mobile frame, and the mobile wheel is arranged at the bottom of the mobile frame, so that the mobile frame can be moved. The mobile wheel can adopt multiple universal wheels. The push-pull handrail can push the mobile frame to move, thereby achieving the function of facilitating the movement of the mobile base 1; the function of the lifting component 2 is to raise or lower the standard metal measuring instrument 91. One end of the lifting component 2 is connected to the mobile base 1, and the other end has a first support platform 23 for placing the standard metal measuring instrument 91. The first support platform 23 is usually The first support platform 23 is placed horizontally so that the standard metal measuring instrument 91 can remain stable. Optionally, the surface of the first support platform 23 has a fixing buckle, which can fix the standard metal measuring instrument 91, thereby improving the stability and support of the standard metal measuring instrument 91; the lifting and rotating component is used to raise, lower or change the position of the metal measuring instrument 92 to be tested. The lifting and rotating component includes a rotating mechanism 31, a lifting mechanism 32, a second support platform 33 and a plurality of third support platforms 34. The lifting mechanism 32 is connected to the mobile base 1, and the other end is connected to the second support platform 33. The rotating mechanism 31 is arranged on the second support platform 33, and the plurality of third support platforms 34 are arranged on the rotating mechanism 31 for placing the metal measuring instrument 92 to be tested. The metal measuring instrument 92, the lifting mechanism 32 has the same structure as the lifting component 2, and the purpose is to enable the second support platform 33 to move up and down. The function of the rotating mechanism 31 is to enable multiple third support platforms 34 to rotate horizontally. A metal measuring instrument 92 to be tested is placed on each support platform. When the rotating mechanism 31 rotates, the metal measuring instrument 92 to be tested can be moved to a position closer to the standard metal measuring instrument 91, thereby improving the efficiency of detection; the function of the water supply component is to supply water to the standard metal measuring instrument 91. The water supply component is arranged between the lifting component 2 and the rotating component, and is used to transport water to the standard metal measuring instrument 91. Optionally, the water supply component includes a water supply tank 41, a water supply pump 42 and a water supply pipe 43. The pool 41 is arranged between the lifting component 2 and the rotating component, the water supply pump 42 is arranged in the water supply pool 41, one end of the water supply pipe 43 is connected to the water supply pump 42, and the other end extends to the top of the standard metal measuring vessel 91. Water is placed in the water supply pool 41, and the water supply pump 42 can pump out the water in the water supply pool 41 and transport it to the upper part of the standard metal measuring vessel 91 through the water supply pipe 43, and then flow into the standard metal measuring vessel 91. The start and stop of the water supply pump 42 can be controlled manually or by a flow control device, or, when the water in the standard metal measuring vessel 91 is close to the water level line, the water supply pump 42 is turned off, and then the water level line is leveled by a rubber-tipped dropper, thereby improving the accuracy of the detection;The function of the connecting component 5 is to transport the water of the standard metal measuring vessel 91 to the metal measuring vessel 92 to be tested. The two ends of the connecting component 5 are respectively connected to the standard metal measuring vessel 91 and the metal measuring vessel 92 to be tested. The connecting component 5 usually adopts a connecting hose, so that water can flow from the standard metal measuring vessel 91 to the metal measuring vessel 92 to be tested under the action of gravity. In this technical solution, by arranging a lifting component 2 and a lifting and rotating component at both ends of the water supply component, the lifting component 2 can raise or lower the standard metal measuring vessel 91, and a plurality of metal measuring vessels 92 to be tested can be placed on the lifting and rotating component. The water supply component transports water to the standard metal measuring vessel 91, and then the connecting component 5 is arranged between the standard metal measuring vessel 91 and the metal measuring vessel 92 to be tested, and the lifting component 2 and the lifting mechanism 32 are started to make the position of the standard metal measuring vessel 91 higher than the position of the metal measuring vessel 92 to be tested, thereby making the standard metal measuring vessel 91 The water in the measuring vessel 91 flows into the metal measuring vessel 92 to be inspected, and then the valve of the metal measuring vessel 92 to be inspected is closed, the connecting component 5 is disconnected, and then the liquid level height of the metal measuring vessel 92 to be inspected is read and recorded, and then the lifting mechanism 32 and the lifting component 2 are started, and the connecting component 5 is set between the standard metal measuring vessel 91 and the metal measuring vessel 92 to be inspected, so that the position of the metal measuring vessel 92 to be inspected is higher than that of the standard metal measuring vessel 91, and then the valve of the metal measuring vessel 92 to be inspected is opened, so that the water in the metal measuring vessel 92 to be inspected flows back to the standard metal measuring vessel 91, and then the liquid level height of the standard metal measuring vessel 91 is adjusted, and at the same time the rotating mechanism 31 is started, and the next metal measuring vessel 92 to be inspected is rotated to the inspection position, and then the connecting component 5 is installed, which can not only improve the efficiency of inspection, but also improve the utilization efficiency of water resources, thereby achieving the technical effect of saving water resources. ;

[0033] Further, the control component 6 is connected to the lifting component 2, the rotating mechanism 31, the lifting mechanism 32 and the water supply component. In this embodiment, the control component 6 is added, and the control component 6 can be controlled by an automatic control system or a manual control device. The control component 6 is connected to the lifting component 2, and the control component 6 can control the start and stop of the lifting component 2, so that the height of the standard metal measuring instrument 91 can be adjusted by the control component 6. The control component 6 is connected to the rotating mechanism 31, and is used to control the start or stop of the rotating mechanism 31, so that the rotating mechanism 31 can be rotated around its axis manually or automatically, so as to achieve the effect of adjusting the position of the metal measuring instrument 92 to be inspected. The control component 6 is connected to the lifting mechanism 32, and the control component 6 can control the start and stop of the lifting mechanism 32, so that the height of the second support platform 33 and the metal measuring instrument 92 to be inspected can be adjusted by the control component 6. The control component 6 is connected to the water supply component, and is used to control the start or stop of the water supply pump 42, so as to achieve the technical effect of adjusting the amount of water in the standard metal measuring instrument 91.

[0034] Furthermore, the water supply component also includes a first water return pipe, one end of which is connected to the metal measuring instrument 92 to be inspected, and the other end extends into the water supply tank 41. In this embodiment, the first water return pipe is added to guide the water in the metal measuring instrument 92 to be inspected into the water supply tank 41 in an emergency, thereby achieving the technical effect of protecting the detection equipment.

[0035] Furthermore, a rubber-tipped dropper component is provided on the upper part of the standard metal measuring vessel 91 and is connected to the water supply pipe 43. In this embodiment, a rubber-tipped dropper component is added, and the rubber-tipped dropper component is installed on the side of one end of the water supply pipe 43. When the amount of water provided by the water supply pipe 43 does not reach the specified liquid level scale of the standard metal measuring vessel 91, the water in the standard metal measuring vessel 91 is increased by manually squeezing the rubber-tipped dropper component, so that the amount of water in the standard metal measuring vessel 91 reaches the specified liquid level scale, thereby improving the accuracy of the detection.

[0036] Furthermore, the lifting component 2 includes a telescopic rod 21 and a telescopic bracket 22, one end of the telescopic rod 21 is rotatably connected to the mobile base 1, and the other end is rotatably connected to the middle of the telescopic bracket 22, one end of the telescopic bracket 22 is rotatably connected to the mobile base 1, and the other end is rotatably connected to the first support platform 23. In this embodiment, the lifting component 2 is further defined, one end of the telescopic rod 21 is rotatably connected to the mobile base 1, and the other end is rotatably connected to the middle of the telescopic bracket 22, the telescopic rod 21 adopts a pneumatic telescopic rod 21 or a hydraulic telescopic rod 21, as long as it can be extended and support the telescopic bracket 22, one end of the telescopic bracket 22 is rotatably connected to the mobile base 1, and the other end is rotatably connected to the first support platform 23, and the telescopic bracket 22 adopts a cross structure, which can reduce the space occupied by the telescopic bracket 22, thereby achieving the technical effect of facilitating the lifting or lowering of the standard metal measuring instrument 91.

[0037] Furthermore, the rotating mechanism 31 includes a rotating disk 311 and a plurality of support rods 311, the rotating disk 311 is rotatably connected to the second support platform 33, and the plurality of support rods 311 are fixedly connected to the rotating disk 311. In this embodiment, the rotating mechanism 31 is further defined, the rotating disk 311 is rotatably connected to the second support platform 33, and the plurality of support rods 311 are fixedly connected to the rotating disk 311, so that the support rods 311 can rotate with the rotation of the rotating disk 311, and optionally, a motor can be provided on the rotating disk 311, and the rotating disk 311 can be driven by the motor to rotate, thereby achieving the technical effect of facilitating the rotation of the rotating disk 311; the support rods 311 can also adopt pneumatic rods or hydraulic rods, thereby achieving the technical effect of adjusting the height of the third support platform 34.

[0038] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A flexible detection system for metal measuring instrument capacity comparison method, characterized in that: include: Mobile base; A lifting component, one end of which is connected to the movable base, and the other end of which has a first support platform for placing a standard metal measuring instrument; A lifting and rotating component, the lifting and rotating component comprises a rotating mechanism, a lifting mechanism, a second support platform and a plurality of third support platforms, the lifting mechanism is connected to the mobile base, and the other end is connected to the second support platform, the rotating mechanism is arranged on the second support platform, and is used to adjust the position of the metal measuring instrument to be inspected, and the plurality of third support platforms are arranged on the rotating mechanism, and are used to place the metal measuring instrument to be inspected, the rotating mechanism comprises a rotating disk and a plurality of support rods, the rotating disk is rotatably connected to the second support platform, and the plurality of support rods are fixedly connected to the rotating disk; a water supply component, the water supply component being disposed between the lifting component and the lifting and rotating component and being used for delivering water to the standard metal measuring vessel; A connecting component, the two ends of which are respectively connected to the standard metal measuring vessel and the metal measuring vessel to be tested, and is used to make water flow from the standard metal measuring vessel to the metal measuring vessel to be tested, or from the metal measuring vessel to be tested, under the action of gravity; A control component, the control component is connected to the lifting component and is used to control the start and stop of the lifting component. The control component is connected to the rotating mechanism and is used to control the start or stop of the rotating mechanism so that the rotating mechanism rotates around its axis. The control component is connected to the lifting mechanism and is used to control the start and stop of the lifting mechanism so that the height of the second support platform and the metal measuring instrument to be inspected is adjusted. The control component is connected to the water supply component and is used to control the start or stop of the water supply component.

2. The flexible detection system of the metal measuring instrument capacity comparison method according to claim 1 is characterized in that: The water supply component includes a water supply tank, a water supply pump and a water supply pipe. The water supply tank is arranged between the lifting component and the lifting and rotating component. The water supply pump is arranged in the water supply tank. One end of the water supply pipe is connected to the water supply pump, and the other end extends to the top of the standard metal measuring instrument.

3. The flexible detection system of the metal measuring instrument capacity comparison method according to claim 2 is characterized in that: The water supply component further comprises a first water return pipe, one end of which is connected to the metal measuring instrument to be inspected, and the other end of which extends into the water supply pool.

4. The flexible detection system of the metal measuring instrument capacity comparison method according to claim 2 is characterized in that: Also includes: A rubber-tipped dropper component is arranged on the upper part of the standard metal measuring vessel and is connected to the water supply pipe.

5. The flexible detection system of metal measuring instrument capacity comparison method according to claim 1 is characterized in that: The lifting component includes a telescopic rod and a telescopic bracket, one end of the telescopic rod is rotatably connected to the mobile base, and the other end is rotatably connected to the middle part of the telescopic bracket, one end of the telescopic bracket is rotatably connected to the mobile base, and the other end is rotatably connected to the first support platform.

6. The flexible detection system for metal measuring vessel capacity comparison method according to claim 5 is characterized in that: The surface of the first support platform has a fixing buckle.

7. The flexible detection system for metal measuring instruments by capacity comparison method according to any one of claims 1 to 6, characterized in that: The connecting component is a connecting hose.

8. The flexible detection system for metal measuring instruments by capacity comparison method according to any one of claims 1 to 6, characterized in that: The mobile base comprises a mobile frame, mobile wheels and a push-pull handrail, wherein the push-pull handrail is arranged at one end of the mobile frame, and the mobile wheels are arranged at the bottom of the mobile frame.

Images