A pump truck

Abstract

The application relates to a pump truck and relates to the technical field of pump body transfer equipment, which comprises a vehicle body, a pump unit arranged at the top of the vehicle body, a connecting handrail, wheels arranged at the bottom of the vehicle body, supporting legs arranged at the bottom of the vehicle body, sleeves fixed with the vehicle body and inner supporting rods sliding with the sleeves, a locking mechanism arranged between the inner supporting rods and the sleeves, the inner supporting rods extending out of the sleeves and being rotationally connected with supporting plates, spherical heads arranged at the top of the supporting plates and being rotationally matched with spherical holes arranged at the bottom of the inner supporting rods, taper rods arranged at the bottom of the supporting plates and being screw-connected with accommodating holes arranged at the middle of the supporting plates, the locking mechanism being in the form of locking rods or locking blocks and elastic elements, and air pressure balance holes arranged in the side walls of the sleeves. The application has the technical effects of improving the stability of the pump truck, facilitating the adjustment of the height of the supporting legs and adapting to different ground conditions.

Description

Technical Field

[0001] This application relates to the field of pump transfer tools, and in particular to a pump truck. Background Technology

[0002] Pump trucks belong to the field of pump transfer tools and are small tools used for transporting and moving pump sets. With the development of industries such as manufacturing and construction, the demand for flexible use of pump sets is increasing, and pump trucks are being used more and more widely in various scenarios. They can easily transport pump sets to different locations, meet diverse work needs, improve work efficiency, reduce labor costs, and play an important role in many fields such as chemical engineering, construction, and agricultural irrigation.

[0003] A Chinese patent with authorization announcement number CN206346976U discloses a small mobile pump truck, which includes a vehicle body, a pump unit, and pipelines. The pump unit is mounted on the top of the vehicle body, which includes a floor, wheels, and handles. The pump unit includes an oil pump and a coarse filter ball valve. The pipelines include a main pipeline, a first auxiliary pipeline, and a second auxiliary pipeline. The main pipeline is connected to the coarse filter ball valve, and multiple straight-through ball valves are installed on the main pipeline. This pump truck can be moved by pushing the handles, making it quite flexible to use.

[0004] The aforementioned technologies have the following drawbacks: the wheels installed at the bottom of the base plate are only suitable for use on flat ground. However, in some actual use cases, the vehicle needs to be used on uneven ground, such as slopes. When the base plate is not horizontal, it will cause the pump unit and other components to tilt, which can easily lead to tipping over. Therefore, improvements are needed. Utility Model Content

[0005] To achieve horizontal adjustment of the base plate, this application provides a pump truck.

[0006] A pump truck includes a vehicle body, a pump unit is installed on the top of the vehicle body, a handrail is connected to the vehicle body, wheels are installed at the bottom of the vehicle body, and a support foot is installed at the bottom of the vehicle body. The support foot includes a sleeve fixedly connected to the vehicle body and an inner support rod slidably connected to the sleeve. A locking mechanism is provided between the inner support rod and the sleeve. The bottom of the inner support rod extends out of the sleeve and is rotatably connected to a support plate.

[0007] By adopting the above technical solution, when the pump unit needs to be used on an inclined ground, the inner support rod is slid to extend the bottom of the inner support rod out of the sleeve and finally make the support plate fit against the inclined ground. Then, the locking mechanism is used to lock the positional relationship between the inner support rod and the sleeve, which can maintain the level of the vehicle body and reduce the occurrence of tipping.

[0008] Preferably, the top of the support plate is provided with a ball head, and the bottom of the inner support rod is provided with a ball socket, with the ball head located inside the ball socket and rotating in engagement.

[0009] By adopting the above technical solution, a support foot is set at the bottom of the vehicle body. The support foot includes a sleeve and an inner support rod. The inner support rod is slidably connected to the sleeve and extends out of the sleeve at the bottom to rotate and connect to the support plate. This allows the position of the inner support rod to be adjusted so that the support plate is as close to the ground as possible. Furthermore, the ball head at the top of the support plate and the ball socket at the bottom of the inner support rod rotate and cooperate, which can further improve the adaptability of the support plate to ground with different inclination angles and better achieve complete contact between the support plate and the ground, thereby further improving the overall stability of the pump truck.

[0010] Preferably, the bottom of the support plate is provided with a tapered rod, the tip of which faces downward.

[0011] By adopting the above technical solution, a cone-shaped rod with its tip pointing downwards is set at the bottom of the support plate, which can be embedded in the ground when the ground is soft soil or other structures, thereby making the support plate more stable on the ground and further improving the stability of the pump truck when placed on uneven ground.

[0012] Preferably, the support plate is provided with a receiving hole, and the middle part of the tapered rod is threadedly connected to the receiving hole.

[0013] By adopting the above technical solution, a receiving hole is provided through the support plate, and the middle part of the cone rod is threaded to the receiving hole, which allows for adjustment of the cone rod's position. By rotating the cone rod, its extension length can be adjusted to adapt to different ground conditions, further enhancing its adaptability. For example, the cone rod can be extended on soft ground and retracted on hard ground, making operation convenient.

[0014] Preferably, the locking mechanism is a locking rod, and a locking hole is provided through the side wall of the sleeve. The locking rod is threadedly connected to the locking hole, with one end abutting against the inner support rod and the other end extending out of the sleeve.

[0015] By adopting the above technical solution, the locking mechanism uses a locking rod and a locking hole threaded connection. One end of the locking rod abuts against the inner support rod, which can easily lock the positional relationship between the inner support rod and the sleeve, thereby maintaining the level of the vehicle body and reducing the occurrence of tipping over when the pump truck is used on sloping ground.

[0016] Preferably, a handwheel is provided at the end of the locking rod extending out of the sleeve.

[0017] By adopting the above technical solution, a handwheel is provided at the end of the locking rod extending from the sleeve, which makes it more convenient and less strenuous to manually adjust the locking rod, thus improving the ease of operation.

[0018] Preferably, the locking mechanism includes a locking block and an elastic element. The inner support rod has a sliding hole on its side wall. The locking block is slidably connected to the sliding hole, and the elastic element is connected between the locking block and the inner wall of the sliding hole to push the locking block out of the sliding hole. The inner side wall of the sleeve has a plurality of positioning holes, which are distributed along the axial direction of the sleeve. The locking block is located in one of the positioning holes, and an operating hole is also provided through the bottom of the positioning hole.

[0019] By adopting the above technical solution, the locking mechanism uses a locking block and an elastic element. Under the action of the elastic element, the locking block is pushed out of the sliding hole and inserted into the positioning holes axially distributed on the inner side wall of the sleeve, which can more accurately and conveniently fix the position of the inner support rod and the sleeve. In addition, an operating hole is provided through the bottom of the positioning hole to facilitate the unlocking operation. The locking block can be pushed by the rod-shaped structure after passing through the operating hole, thereby further improving the convenience of adjustment and fixing of the pump truck when used on uneven ground.

[0020] Preferably, a pressure balance hole is provided through the top of the sleeve sidewall.

[0021] By adopting the above technical solution, the air pressure balance hole through the top of the sleeve side wall can balance the air pressure inside and outside the sleeve, making it easier for the inner support rod to slide more smoothly inside the sleeve.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The inner support rod can be slid to make the support plate fit against the inclined ground, and then the locking mechanism can be used to lock the position of the inner support rod and the sleeve to maintain the vehicle body level and reduce the chance of tipping over;

[0024] 2. The ball joint at the top of the support plate and the ball socket at the bottom of the inner support rod rotate together, allowing the support plate to better adapt to ground with different inclination angles;

[0025] 3. The bottom of the support plate is equipped with a tapered rod with the tip pointing downwards, which can enhance the grip between the support plate and the ground and further improve the stability of the pump truck on uneven ground. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0027] Figure 2 This is a structural schematic diagram of Embodiment 1 of this application, illustrating the vehicle body's position on an inclined ground.

[0028] Figure 3 This is a schematic diagram illustrating the connection between the sleeve and the inner support rod in Embodiment 1 of this application;

[0029] Figure 4 This is a schematic diagram illustrating the connection relationship between the inner strut and the support plate in Embodiment 1 of this application;

[0030] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this application;

[0031] Figure 6 This is a schematic diagram illustrating the connection between the sleeve and the inner support rod in Embodiment 2 of this application.

[0032] In the picture:

[0033] 1. Vehicle body; 11. Pump unit; 12. Handrail; 13. Wheels;

[0034] 2. Support foot; 20. Air pressure balance hole; 21. Sleeve; 22. Inner support rod; 23. Support plate;

[0035] 31. Ball head; 32. Ball socket;

[0036] 4. Tapered rod; 41. Accommodating hole;

[0037] 5. Locking rod; 50. Locking hole; 51. Handwheel;

[0038] 6. Locking block; 61. Elastic element; 62. Sliding hole; 63. Positioning hole; 64. Operating hole. Detailed Implementation

[0039] The technical solutions in the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of this utility model, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are also within the protection scope of this utility model.

[0040] This application mainly adopts a scheme of adjusting the level by setting support feet at the bottom of the vehicle body, which enables the pump truck to be used stably on uneven ground and reduces the chance of tipping over. The following is a further detailed description of this application. Example

[0041] Reference Figure 1 and Figure 2 The pump truck provided in this application embodiment includes a vehicle body 1, a pump unit 11, a handrail 12, wheels 13, and support legs 2. The pump unit 11 is mounted on the top of the vehicle body 1 and equipped with related fixing and mounting components. The handrail 12 is connected to the side of the vehicle body 1, and the wheels 13 and support legs 2 are located at the bottom of the vehicle body 1. Specifically, in this embodiment, there are two wheels 13 and two support legs 2, with the wheels 13 and support legs 2 located at opposite ends of the vehicle body 1. This arrangement facilitates the movement of the pump truck, and the support legs 2 also provide support and leveling adjustment for the vehicle body 1.

[0042] Reference Figure 3Specifically, the support leg 2 includes a sleeve 21 and an inner support rod 22. The top of the sleeve 21 is fixedly connected to the vehicle body 1, for example, by welding or bolting. The sleeve 21 is generally made of metal, such as stainless steel or carbon steel, which has high strength and stability. The inner support rod 22 is slidably connected to the sleeve 21. The inner support rod 22 is also usually made of metal with a smooth surface to allow for smooth sliding within the sleeve 21. A locking mechanism is provided between the inner support rod 22 and the sleeve 21 to fix their relative positions.

[0043] Reference Figure 4 In addition, the inner support rod 22 extends out of the sleeve 21 and is rotatably connected to the support plate 23. The top of the support plate 23 is provided with a ball head 31, which is generally hemispherical and can be made of metal or hard plastic. The bottom of the inner support rod 22 is provided with a ball socket 32, the shape of which matches the ball head 31. The ball head 31 is located inside the ball socket 32 ​​and rotates in cooperation with it. This structure allows the support plate 23 to rotate flexibly at the bottom of the inner support rod 22, better adapting to ground with different inclination angles. The cooperation between the ball head 31 and the ball socket 32 ​​can also be replaced by a universal joint or other structure, which can still achieve multi-angle rotation of the support plate 23.

[0044] The support plate 23 is also connected to a cone rod 4, with the tip of the cone rod 4 pointing downwards. The cone rod 4 is generally made of high-strength metal, such as alloy steel. When the support plate 23 is placed on a flexible surface, the cone rod 4 can be inserted into the ground, increasing the friction and grip between the support plate 23 and the ground, and reducing the pump truck's slippage. The support plate 23 has a through-hole 41, the diameter of which matches the outer diameter of the middle part of the cone rod 4. The middle part of the cone rod 4 is threaded into the through-hole 41. This threaded connection allows for easy adjustment of the length of the cone rod 4 extending beyond the bottom of the support plate 23 to adapt to different ground hardness. For example, on a softer surface, the cone rod 4 can be screwed out a longer distance to better insert into the ground. On a harder surface, the bottom of the cone rod 4 can be retracted into the through-hole 41, allowing for flexible operation.

[0045] Reference Figure 3 In this embodiment 1, the locking mechanism is a locking rod 5. A locking hole 50 is provided through the side wall of the sleeve 21. The locking rod 5 is threadedly connected to the locking hole 50, with one end abutting against the inner support rod 22 and the other end extending out of the sleeve 21. The locking rod 5 is usually a metal rod with threads on its surface. By rotating the locking rod 5, its end is tightly pressed against the inner support rod 22, thereby fixing the positions of the inner support rod 22 and the sleeve 21. In addition, a handwheel 51 is provided at the end of the locking rod 5 extending out of the sleeve 21. The handwheel 51 is generally made of plastic or rubber, making it convenient for the operator to manually rotate the locking rod 5. The handwheel 51 can also be replaced with a knob or other structure, as long as it allows for convenient rotation of the locking rod 5.

[0046] A pressure balancing hole 20 is provided through the top of the side wall of the sleeve 21. The function of the pressure balancing hole 20 is to balance the air pressure inside and outside the sleeve 21, so that the inner support rod 22 can slide more smoothly inside the sleeve 21. The pressure balancing hole 20 is generally small to prevent dust, debris and other objects from entering the inside of the sleeve 21.

[0047] The implementation principle of this embodiment is as follows: When the pump truck needs to be used on uneven ground such as a slope, after pushing the pump truck to the designated position, the inner support rod 22 is slid according to the slope of the ground, so that the support plate 23 is in contact with the ground. If the ground is soft, the extension length of the cone rod 4 can be adjusted so that the cone rod 4 is inserted into the ground. Then, the position of the inner support rod 22 and the sleeve 21 is fixed by the locking mechanism. The support plate 23 can rotate flexibly through the cooperation of the ball head 31 and the ball socket 32 ​​to better adapt to the ground. The air pressure balance hole 20 ensures that the inner support rod 22 slides smoothly. In this way, the horizontal adjustment of the vehicle body 1 is realized, reducing the possibility of the pump truck tipping over on uneven ground. Compared with traditional pump trucks that can only be used on flat ground, this pump truck has a wider range of applications and greatly improves the practicality and stability of the pump truck. Example

[0048] Reference Figure 5 and Figure 6 The difference between this embodiment and Embodiment 1 is that the locking mechanism includes a locking block 6 and an elastic element 61. A sliding hole 62 is provided on the side wall of the inner support rod 22. The locking block 6 is slidably connected to the sliding hole 62. The elastic element 61 is connected between the locking block 6 and the inner wall of the sliding hole 62, used to push the locking block 6 out of the sliding hole 62. The elastic element 61 can be a spring with a certain elastic coefficient, providing appropriate elastic force to push the locking block 6 out. A plurality of positioning holes 63 are provided on the inner side wall of the sleeve 21, distributed along the axial direction of the sleeve 21. Part of the locking block 6 is located in the sliding hole 62, and another part is located in one of the positioning holes 63 to achieve locking. Furthermore, an operating hole 64 is also provided through the bottom of the positioning hole 63. When it is necessary to adjust the position of the locking block 6, a rod-shaped object, such as a screwdriver, can be used to push the locking block 6 out of the current positioning hole 63 through the operating hole 64.

[0049] The implementation principle of this embodiment is as follows: the inner support rod 22 is positioned by utilizing the elastic force of the elastic element 61 and the cooperation of the positioning hole 63. The elastic element 61 can continuously provide thrust, ensuring that the locking block 6 is stably locked in the positioning hole 63. Compared with the locking rod 5 method, it does not require frequent rotation of the locking rod 5, making it more suitable for scenarios requiring rapid adjustment. Moreover, the positioning holes 63 are distributed along the axial direction of the sleeve 21, providing multiple positioning positions, which can more accurately adjust the extension length of the inner support rod 22, enabling the pump truck to be used stably on ground with corresponding inclination levels, thus improving the adaptability and stability of the pump truck on uneven ground.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pump truck, comprising a vehicle body (1), a pump unit (11) disposed on the top of the vehicle body (1), a handrail (12) connected to the vehicle body (1), and wheels (13) disposed on the bottom of the vehicle body (1), characterized in that: The bottom of the vehicle body (1) is provided with a support foot (2). The support foot (2) includes a sleeve (21) fixedly connected to the vehicle body (1) and an inner support rod (22) slidably connected to the sleeve (21). A locking mechanism is provided between the inner support rod (22) and the sleeve (21). The bottom of the inner support rod (22) extends out of the sleeve (21) and is rotatably connected to a support plate (23).

2. A pump truck according to claim 1, characterized in that: The top of the support plate (23) is provided with a ball head (31), and the bottom of the inner support rod (22) is provided with a ball socket (32). The ball head (31) is located inside the ball socket (32) and rotates in cooperation with it.

3. A pump truck according to claim 1, characterized in that: The bottom of the support plate (23) is provided with a cone rod (4), the tip of which faces downward.

4. A pump truck according to claim 3, characterized in that: The support plate (23) is provided with a receiving hole (41) through it, and the middle part of the tapered rod (4) is threadedly connected to the receiving hole (41).

5. A pump truck according to claim 1, characterized in that: The locking mechanism is a locking rod (5), and a locking hole (50) is provided through the side wall of the sleeve (21). The locking rod (5) is threadedly connected to the locking hole (50), and one end abuts against the inner support rod (22) and the other end extends out of the sleeve (21).

6. A pump truck according to claim 5, characterized in that: A handwheel (51) is provided at the end of the locking rod (5) that extends out of the sleeve (21).

7. A pump truck according to claim 1, characterized in that: The locking mechanism includes a locking block (6) and an elastic element (61). The inner support rod (22) has a sliding hole (62) on its side wall. The locking block (6) is slidably connected to the sliding hole (62), and the elastic element (61) is connected between the locking block (6) and the inner wall of the sliding hole (62) to push the locking block (6) out of the sliding hole (62). The inner side wall of the sleeve (21) is provided with a plurality of positioning holes (63). The plurality of positioning holes (63) are distributed along the axial direction of the sleeve (21). The locking block (6) is located in one of the positioning holes (63). An operating hole (64) is also provided through the bottom of the positioning hole (63).

8. A pump truck according to claim 1, characterized in that: A pressure balance hole (20) is provided through the top of the side wall of the sleeve (21).

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