Movable quick-opening blind plate maintenance transfer trolley

Abstract

The utility model relates to the field of manual vehicles, in particular to a movable quick-opening blind plate maintenance transfer trolley. The movable quick-opening blind plate maintenance transfer trolley comprises a walking chassis, a lifting platform is arranged on the walking chassis, a supporting stand column is installed on the lifting platform, and a blind plate bearing table capable of rising to the blind plate loading and unloading position along with rising of the lifting platform to bear a blind plate is installed on the supporting stand column. The supporting stand column has a set height so as to prevent the lifting platform from interfering with objects near the blind plate when the blind plate bearing table bears the blind plate, and the blind plate bearing table is connected with a blind plate fixing device. When the blind plate is transferred, the transfer trolley can be pushed to the position below the blind plate, the height of the blind plate bearing table is adjusted according to the height of the blind plate, the blind plate is detached and falls into the blind plate bearing table, then the blind plate fixing device is used for fixing the blind plate, and then the lifting platform descends and is pushed out of an operation site to complete transfer. The problem that in the maintenance and transfer process of the quick-opening blind plate, the operation space is limited, and transfer is inconvenient is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of manual vehicles, in particular to a mobile quick-opening blind plate maintenance and transfer vehicle. Background Art

[0002] During the cleaning operation of the gathering and transportation pipeline in the sour oil and gas field and the operation of the gathering and transportation / wellbore test pipe, the quick-opening blind plate of the ball barrel needs to be opened and closed. The quick-opening blind plate is at the end of the sending and receiving ball barrel, and its main function is to seal the pipeline. With the aging of the quick-opening blind plate components of the ball barrel, the frequency of quick-opening blind plate failures increases year by year. According to the actual operation of the gas field, the quick-opening blind plates of the sending and receiving ball barrels and the gathering and transportation / wellbore test barrels need to be dismantled and maintained regularly, and the maintenance workload of the quick-opening blind plates is large. The size of the quick-opening blind plate is between DN250 and DN600, weighing about 100KG-400KG, and the ball barrel is about 0.6-1.54m from the ground. Before repairing the quick-opening blind plate, it needs to be disassembled and transported outside the gas gathering station. At present, the method of transporting quick-opening blind plates is to transport them outside the gas gathering station by manual transportation by 3-10 people or by crane. However, during the transportation process, some quick-opening blind plates are blocked by equipment and facilities such as brackets, ladders, and high-pressure venting platforms. Due to site limitations, both manpower and cranes are very inconvenient, affecting maintenance efficiency. Personnel wear protective equipment such as masks and air respirators, and there are blind spots in their vision. They are prone to bumps when transporting the blind plates, and may be injured in serious cases. In addition, the cost of using cranes is high.

[0003] A Chinese utility model patent with authorization announcement number CN206069279U and authorization announcement date April 5, 2017 discloses a rotary liftable conveying cart, which includes a base, a roller installed at the bottom of the base, a scissor-type connecting rod mechanism installed on the base, one end of the bottom of the scissor-type connecting rod mechanism is hinged to the base, and a pulley is installed at the other end of the bottom. A slide groove is formed on each side of the base, and the pulley is embedded in the slide groove. A top plate is hinged at the top of the scissor-type connecting rod mechanism, a turntable is installed on the top plate, a material frame is fixed on the turntable, a plurality of driven rollers are installed in the material frame from left to right in sequence, a handle is fixed on the material frame, a cross bar is provided on the scissor-type connecting rod mechanism, a power mechanism is hinged on the cross bar, the bottom of the power mechanism is hinged on the base, a hand push rod is fixed on the base, a controller is installed on the hand push rod, and two cylinders arranged obliquely downward are fixed on one side of the hand push rod on the base, and a pressure plate is horizontally hinged at each end of the output shaft of the two cylinders. When in use, place the materials to be transported on the driven roller on the material frame, and then push the push rod. When arriving at the destination, the controller drives the power mechanism to lift the materials, bring the top plate close to and level with the container, and then, under the action of the cylinder, drive the pressure plate to press against the ground to make the cart stable. Then, according to the direction in which the goods need to be placed, rotate the handle to make the driven roller reach the required position angle, push the materials onto the container, and complete the transportation.

[0004] The rotary liftable transport trolley provided by the utility model can adjust the height and direction of the material frame according to the height and position of the goods to complete the cargo transfer, but if it is used for the transfer of quick-opening blind plates, it is still inconvenient to use due to limited operating space and has low operating efficiency. Utility Model Content

[0005] The utility model aims to provide a mobile quick-opening blind plate maintenance and transportation vehicle to solve the problem of inconvenience in transportation caused by limited operating space during the quick-opening blind plate maintenance and transportation process in the prior art.

[0006] In order to achieve the above purpose, the mobile quick-opening blind plate maintenance and transfer vehicle of the utility model adopts the following technical solutions:

[0007] A mobile quick-opening blind plate maintenance and transfer vehicle comprises a traveling chassis, a lifting platform is provided on the traveling chassis, a supporting column is installed on the lifting platform, a blind plate receiving platform is installed on the supporting column, and the blind plate receiving platform can be raised to a blind plate loading and unloading position to receive the blind plate as the lifting platform rises, the supporting column has a set height to avoid interference between the lifting platform and objects near the blind plate when the blind plate receiving platform receives the blind plate, and a blind plate fixing device is connected to the blind plate receiving platform.

[0008] Beneficial effects: The mobile quick-opening blind plate maintenance and transfer vehicle of the utility model is a pioneering invention. Specifically, by setting a lifting platform on the walking chassis, installing supporting columns on the lifting platform, and installing a blind plate receiving platform on the supporting columns, the blind plate receiving platform can rise to the blind plate loading and unloading position to receive the blind plate as the lifting platform rises, and the supporting columns have a set height, which can avoid the interference between the lifting platform and objects near the blind plate when the blind plate receiving platform receives the blind plate, and a blind plate fixing device is installed on the blind plate receiving platform. When transporting the blind plate, the transfer vehicle can be pushed under the blind plate, and the height of the blind plate receiving platform is adjusted according to the height of the blind plate. The blind plate is disassembled and dropped onto the blind plate receiving platform, and then fixed with the blind plate fixing device, and then the lifting platform is lowered and pushed out of the work site to complete the transfer. When installing the blind plate, the above steps can be operated in the reverse order, which effectively solves the problem of inconvenience in transportation caused by limited operating space during the quick-opening blind plate maintenance and transfer process.

[0009] Furthermore, the supporting column is rotatably matched with the blind plate receiving platform and / or the lifting platform.

[0010] Furthermore, a support frame is connected to the bottom of the blind plate receiving platform, and the support frame includes a support rod and a support sleeve. The support sleeve is mounted on the supporting column, and the support rod is connected to the blind plate receiving platform at an angle from bottom to top toward the periphery of the blind plate receiving platform.

[0011] Furthermore, an axle seat is installed on the lifting platform, and the axle seat includes a bearing sleeve. The bearing sleeve has a set height to install a straightening bearing at a set height of the supporting column, and the lower end of the supporting column is rotatably matched with the bearing sleeve through the straightening bearing.

[0012] Furthermore, a blind plate positioning groove is provided on the blind plate receiving platform.

[0013] Furthermore, the blind plate fixing device includes a column, a sliding sleeve, and a push rod. The column is connected to the blind plate receiving platform, the sliding sleeve guide sleeve is arranged on the column, the push rod guide is installed on the sliding sleeve, and the push rod can move in the horizontal direction relative to the sliding sleeve.

[0014] Furthermore, the push rod is locked by a locking bolt.

[0015] Furthermore, the lifting platform is a scissors-type lifting platform.

[0016] Furthermore, the lifting platform is connected to a hydraulic lifting rod, the hydraulic lifting rod is connected to a pressing device, and the pressing device is installed on the walking chassis.

[0017] Furthermore, the pressing device is a foot-operated hydraulic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific embodiment of the mobile quick-opening blind plate maintenance and transfer vehicle of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the connection structure of the middle blind plate receiving platform, the support frame and the blind plate fixing device;

[0020] Figure 3 for Figure 1 and Figure 2 Schematic diagram of the structure of the center blind plate fixing device;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the middle supporting column.

[0022] In the figure: 1. blind plate receiving platform; 101. blind plate positioning groove; 102. column; 103. sliding sleeve; 104. push rod; 31. locking bolt; 105. support rod; 106. support sleeve; 2. supporting column; 201. shaft head; 202. first shaft shoulder; 203. shaft body; 204. first shaft neck; 205. second shaft shoulder; 206. second shaft neck; 22. straightening bearing; 23. thrust bearing; 24. bearing sleeve; 25. fixing bolt; 26. support seat; 3. shaft seat; 301. slot; 4. lifting platform; 5. scissor-type lifting mechanism; 6. hydraulic lifting rod; 7. pressing device; 8. walking chassis; 9. wheels; 10. push rod; 11. handle; 12. blind plate fixing device; 13. support frame. DETAILED DESCRIPTION

[0023] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0024] The rotary liftable transport cart disclosed in the prior art can adjust the height and direction of the material frame according to the height and position of the goods to complete the cargo transfer, but if it is used for the transfer of quick-opening blind plates, it is still inconvenient to use due to the limited operating space and the operating efficiency is low. The core concept of the utility model is to set a lifting platform on the walking chassis, install supporting columns on the lifting platform, and install a blind plate receiving platform on the supporting columns. By controlling the size of the blind plate receiving platform, the blind plate receiving platform can be raised to the blind plate loading and unloading position with the lifting platform to receive the blind plate, and the supporting columns are set to a specified height to avoid interference between the lifting platform and objects near the blind plate when the blind plate receiving platform receives the blind plate, and a blind plate fixing device is installed on the blind plate receiving platform to ensure that the blind plate is not easy to fall during the transfer process, thereby completing the transfer of the blind plate.

[0025] Based on the above invention concept, Figure 1 and Figure 2 As shown, a mobile quick-opening blind plate maintenance and transfer vehicle of the utility model includes a walking chassis 8, a lifting platform 4 is provided on the walking chassis 8, a supporting column 2 is installed on the lifting platform 4, a blind plate receiving platform 1 is installed on the supporting column 2, which can rise to the blind plate loading and unloading position to receive the blind plate as the lifting platform 4 rises, the supporting column 2 has a set height to avoid interference between the lifting platform 4 and objects near the blind plate when the blind plate receiving platform 1 receives the blind plate, and a blind plate fixing device 12 is connected to the blind plate receiving platform 1.

[0026] Among the above components, Figure 1 and Figure 2In the embodiment shown, the blind plate receiving platform 1 is a rectangular platform, which can receive the blind plate as the lifting platform 4 rises. In some other embodiments, the blind plate receiving platform 1 can also be set as a square or circular platform. Considering the heavy weight of the quick-opening blind plate, the material of the blind plate receiving platform 1 is preferably a rigid material with high strength, good durability and good load-bearing capacity. In some other embodiments, high-strength manganese steel or aluminum alloy materials can also be selected. A blind plate positioning groove 101 is provided on the blind plate receiving platform 1. Considering the stability of the blind plate receiving platform 1, the blind plate positioning groove 101 is arranged at the center of the blind plate receiving platform 1. The shape of the blind plate positioning groove 101 is preferably a rectangular shape that matches the blind plate receiving platform 1. In some other embodiments, the shape of the blind plate positioning groove 101 can also be selected as other shapes that match the blind plate receiving platform 1, and it is also possible not to be located at the center of the blind plate receiving platform 1. In order to make the quick-opening blind plate fit more tightly in the blind plate positioning groove 101 and ensure that it does not shake up and down during transportation, the inner side surface of the blind plate positioning groove 101 is set to an arc-shaped inner side surface that matches the shape of the quick-opening blind plate. In some other embodiments, the shape of the inner side surface can also be set to a rectangular shape. A blind plate fixing device 12 is connected to the blind plate receiving platform. The blind plate fixing device 12 includes a column 102, a sliding sleeve 103, and a push rod 104. The column 102 is connected to the blind plate receiving platform 1. There are four columns 102 distributed around the blind plate receiving platform 1, and the stability is good. The connection between the column 102 and the blind plate receiving platform 1 is preferably a welding connection, which has better firmness. In some other embodiments, the number of columns 102 can also be set to more than four without special restrictions. The connection between the column 102 and the blind plate receiving platform 1 can also be selected as a bolt connection, an adhesive connection, etc. In such as Figure 2 and Figure 3 In the embodiment shown, the guide sleeve 103 is set on the column 102, and can be adjusted by sliding up and down according to the diameter of the quick-opening blind plate. The shape of the sleeve 103 is a rectangular parallelepiped, and it is locked on the column 102 by the locking bolt 31. The push rod 104 is guided and installed on the sleeve 103, and the length of the push rod 104 can be adjusted according to the thickness of the quick-opening blind plate. The push rod 104 is locked on the sleeve 103 by the locking bolt 31. In order to make the quick-opening blind plate firmly fixed on the blind plate receiving platform 1, the shape of the push rod 104 is preferably T-shaped. In some other embodiments, the shape of the push rod 104 can also be set to be straight. The locking method of the sleeve 103, the column 102 and the push rod 104 can also be locked by screws, studs and pins. The locking method of the push rod 104 can also be locked without using a locking piece, and can be locked in the form of threaded self-locking.

[0027] In such Figure 1 and Figure 2In the embodiment shown, the bottom of the blind plate receiving platform 1 is connected to a support frame 13, and the support frame 13 includes a support rod 105 and a support sleeve 106. In order to ensure the stability of the entire blind plate receiving platform 1 and prevent it from tilting, the support rod 105 is connected to the blind plate receiving platform 1 from bottom to top and tilted toward the outer periphery of the blind plate receiving platform 1. The connection method is preferably welding. The number of support rods 105 is set to four. In some other embodiments, the number of support rods 105 can also be set to six or eight, without special restrictions. The connection method can also be bolted, etc. The support sleeve 106 is sleeved on the support column 2. The support sleeve 106 is a spline sleeve, which is connected with the support column 2.

[0028] In such Figure 1 and Figure 4In the illustrated embodiment, the supporting column 2 is connected to the bottom center position of the blind plate receiving platform 1, and the supporting column 2 has a set height to prevent the lifting platform 4 from interfering with objects near the blind plate when the blind plate receiving platform 1 receives the blind plate. The supporting column 2 is a cylindrical rotating shaft, and the rotating shaft can rotate with the blind plate receiving platform 1 and / or the lifting platform 4. The rotating shaft is composed of a shaft head 201, a first shaft shoulder 202, a shaft body 203, a first shaft neck 204, a second shaft shoulder 205, and a second shaft neck 206 connected in sequence. The diameters of the shaft head 201, the first shaft shoulder 202, the shaft body 203, the first shaft neck 204, and the second shaft shoulder 205 increase in sequence, and the diameter of the second shaft neck 206 is smaller. The shaft head 201 is connected to the blind plate receiving platform 1, the shaft shoulder 202 can transmit the force and torque on the rotating shaft, the shaft body 203 is a spline shaft, connected to the support sleeve 106, this connection mode has good firmness and stability, small friction loss, and can effectively reduce the phenomenon of stress concentration. In some other embodiments, the support sleeve 106 can also be welded on the rotating shaft. The first shaft neck 201 is provided with a straightening bearing 22, which is a cylindrical roller bearing, which can withstand axial loads and radial loads, and also plays a certain supporting role for the rotating shaft 2, ensuring its stable operation without wear. In some other embodiments, the straightening bearing 22 can also be a tapered roller bearing, a ball bearing, etc. The second shaft shoulder 205 can enable the straightening bearing 22 to obtain axial positioning to prevent it from sliding. The second shaft neck 206 is provided with a thrust bearing 23, which is a thrust ball bearing, which can withstand axial loads. In some other embodiments, the thrust bearing 23 can also be a thrust roller bearing. The support column 2 is connected to the lifting platform 4 through the shaft seat 3. The shaft seat 3 includes a bearing sleeve 24 and a support seat 26. The bearing sleeve 24 has a set height to install the straightening bearing 22. The lower end of the rotating shaft is rotatably matched with the bearing sleeve 24 through the straightening bearing 22. The bearing sleeve 24 and the bottom of the rotating shaft are fixed on the support seat 26. The support seat 26 is rectangular in shape, with a slot 301 in the middle. The bottom of the rotating shaft is fixed in the slot 301. To match the rotating shaft, the slot 301 is cylindrical in shape. The bottom of the bearing sleeve 24 is fastened to the support seat 26 by a fixing bolt 25. In some other embodiments, screws and pins can also be used for fixing. The support seat 26 can also be set as a square shaft seat, or the support seat 26 can be omitted, and the rotating shaft can be directly installed on the lifting platform 4.

[0029] In such Figure 1In the embodiment shown, the lifting platform 4 is a rectangular platform. In some other embodiments, the lifting platform 4 can also be set as a square, circular or other quadrilateral platform. The lifting platform 4 is a scissor-type lifting platform. Considering that the height of the quick-opening blind plate is about 0.6-1.54m from the ground, the scissor-type lifting mechanism 5 adopts a double scissor-type lifting mechanism. In some other embodiments, the number of scissor-type lifting mechanisms 5 can be determined according to the height of the quick-opening blind plate. A hydraulic lifting rod 6 is connected to the middle of the scissor-type lifting mechanism 5, and a suppressing device 7 is connected to the hydraulic lifting rod 6. The bottom of the suppressing device 7 is connected to the walking chassis 8. Considering that the suppressing device 7 is easy to maintain, the suppressing device 7 adopts a foot-operated hydraulic pump, which controls the lifting and lowering of the hydraulic lifting rod 6 by the foot-operated hydraulic pump, thereby driving the lifting and lowering of the scissor-type lifting mechanism 5. In actual operation, its lifting height can be adjusted according to the height of the quick-opening blind plate. In some other embodiments, the suppressing device 7 can also adopt an electric hydraulic pump, a hydraulic cylinder, etc. The bottom of the scissor-type lifting mechanism 5 is fixed on the walking chassis 8. The walking chassis 8 is a rectangular frame with a hollowed-out middle. The hollowed-out part is also rectangular, and its size is consistent with that of the double scissor-type lifting mechanism 5 when it is contracted. When not in use, the scissor-type lifting mechanism 5 can be placed in the hollowed-out part. Considering the stability of the entire transfer vehicle, the size of the walking chassis 8 is consistent with that of the lifting platform 4. In some other embodiments, the size of the lifting platform 4 may also be inconsistent with that of the walking chassis 8. Wheels 9 are installed at the bottom of the walking chassis 8. There are 4 wheels 9. The wheels 9 are universal wheels. The tires are wear-resistant tires with good load-bearing properties. Wheel brackets are provided at the four corners of the walking chassis 8, and they are equipped with manual brakes, which can easily realize steering and braking. In some other embodiments, the wheels 9 can also be set to 2, or ordinary wheels can be selected. A push rod 10 is connected to the traveling chassis 8 and is an inverted U-shaped push rod fixed to one side of the traveling chassis 8. In some other embodiments, the push rod 10 can also be set to a straight line or other shapes to facilitate pulling the vehicle. A handle 11 is connected to the top of the push rod 10, and the handle 11 is a conical handle. In some other embodiments, it can also be set to a spherical, cylindrical, T-shaped handle, etc.

[0030] When the quick-opening blind plate is repaired and transported, the transfer vehicle is pushed to the bottom of the quick-opening blind plate. According to the height of the quick-opening blind plate, the hydraulic lifting rod 6 slowly rises by stepping on the pressing device 7, which will drive the scissor-type lifting mechanism 5 to rise to a reasonable height of the quick-opening blind plate and then stop pressing. The blind plate receiving platform 1 is rotated so that the blind plate positioning groove 101 on the blind plate receiving platform 1 is opposite to the quick-opening blind plate and stops rotating. The root of the quick-opening blind plate is disassembled so that the quick-opening blind plate is opposite to the blind plate positioning groove 101 and drops to its bottom. The positions of the four sliding sleeves 103 on the column 102 and the position of the push rod 104 on the sliding sleeve 103 are adjusted so that the quick-opening blind plate can be supported by the four push rods 104, and finally the quick-opening blind plate is lowered as a whole. After completing the above operations, the transfer vehicle can be pushed outside the gas gathering station to complete the transfer work. After the blind plate is repaired or maintained, the quick-opening blind plate is pushed to the site for installation.

Claims

1. A mobile quick-opening blind plate maintenance and transfer vehicle, characterized in that: It includes a walking chassis, a lifting platform is provided on the walking chassis, a supporting column is installed on the lifting platform, a blind plate receiving platform is installed on the supporting column, and the blind plate receiving platform can rise to the blind plate loading and unloading position to receive the blind plate as the lifting platform rises, the supporting column has a set height to avoid interference between the lifting platform and objects near the blind plate when the blind plate receiving platform receives the blind plate, and a blind plate fixing device is connected to the blind plate receiving platform.

2. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 1 is characterized in that: The supporting column is rotatably matched with the blind plate receiving platform and / or the lifting platform.

3. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 1 or 2, characterized in that: A support frame is connected to the bottom of the blind plate receiving platform, and the support frame includes a support rod and a support sleeve. The support sleeve is sleeved on the supporting column, and the support rod is connected to the blind plate receiving platform from bottom to top and tilted toward the outer periphery of the blind plate receiving platform.

4. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 2 is characterized in that: The lifting platform is provided with an axle seat, which includes a bearing sleeve. The bearing sleeve has a set height so as to install a centering bearing at a set height of the supporting column. The lower end of the supporting column is rotatably matched with the bearing sleeve through the centering bearing.

5. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 1 or 2, characterized in that: The blind plate receiving platform is provided with a blind plate positioning groove.

6. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 1 is characterized in that: The blind plate fixing device includes a column, a sliding sleeve, and a push rod. The column is connected to the blind plate receiving platform, the sliding sleeve guide sleeve is arranged on the column, the push rod guide is installed on the sliding sleeve, and the push rod can move in the horizontal direction relative to the sliding sleeve.

7. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 6 is characterized in that: The push rod is locked by a locking bolt.

8. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 1 is characterized in that: The lifting platform is a scissor-type lifting platform.

9. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 8 is characterized in that: The lifting platform is connected with a hydraulic lifting rod, the hydraulic lifting rod is connected with a pressing device, and the pressing device is installed on the walking chassis.

10. The mobile quick-opening blind plate maintenance and transfer vehicle according to claim 9 is characterized in that: The pressing device is a foot-operated hydraulic pump.

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