Backpack type portable hydraulic pump

Abstract

The utility model relates to a backpack type portable hydraulic pump which comprises a motor pump set, the motor pump set comprises a pump body and a gasoline engine, the hydraulic pump further comprises a bracket, the motor pump set is installed on the bracket, the bracket comprises a telescopic bracket frame and a foldable base, one end of the foldable base is detachably and fixedly connected with the bottom of the telescopic bracket frame, and the other end of the foldable base is detachably and fixedly connected with the telescopic bracket frame. Rubber wheels are installed at the bottom of the telescopic bracket frame, a transverse supporting plate is fixedly connected to the middle of the telescopic bracket frame, a vertical fixing plate and a horizontal fixing plate are arranged at the upper end and the lower end of the side, facing the foldable base, of the transverse supporting plate correspondingly, and fixing holes connected with a motor pump set are formed in the vertical fixing plate and the horizontal fixing plate correspondingly. A motorized pump strapping tape, an adjustable waistband and a strap are further arranged on the telescopic bracket frame; the pump body is provided with a carrying handle used in cooperation with a motor pump strapping tape. The utility model has the beneficial effects of greatly reduced weight, reduced volume, convenient operation, stable performance, strong adaptability and the like.

Description

Technical Field

[0001] This application relates to the field of hydraulic pump technology, and more particularly to a backpack-type portable hydraulic pump. Background Technology

[0002] In existing rescue and related operational scenarios, the existing mobile pumps have many drawbacks. They are typically large in size, weighing between 30-50 kg, classifying them as large or medium-sized mobile pumps. Due to their weight and size, they require two people to carry them during rescue operations. This not only consumes a significant amount of rescue manpower but is also extremely difficult to transport in complex rescue environments. For example, in the ruins after an earthquake, on narrow mountain paths, or in the complex terrain of a fire scene, moving large mobile pumps requires a great deal of physical exertion from rescue personnel, leaving them exhausted even before officially commencing rescue work.

[0003] From a rescue efficiency perspective, mobile transport is extremely inefficient, wasting a significant amount of time on equipment transfer and easily missing the optimal opportunity to rescue trapped individuals. Furthermore, the large size of the original motorized pump requires substantial space for storage and transportation, increasing additional storage and transportation costs, whether for loading onto rescue vehicles or storing in rescue warehouses. In addition, its operational convenience is poor; operators find it difficult to use flexibly in complex environments, further reducing rescue efficiency and failing to meet the urgent need for efficient and rapid rescue operations. Utility Model Content

[0004] This utility model addresses the problems of traditional motorized pumps being heavy, bulky, difficult to transport, inconvenient to operate, and having low rescue efficiency in the existing technology. It provides a backpack-type lightweight hydraulic pump to adapt to complex rescue sites, improve rescue efficiency, and save manpower and material costs.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A portable, backpack-type hydraulic pump includes a motorized pump assembly. The motorized pump assembly includes a pump body and a gasoline engine. The hydraulic pump also includes a bracket on which the motorized pump assembly is mounted. The bracket includes a retractable bracket frame and a foldable base. One end of the foldable base is detachably and fixedly connected to the bottom of the retractable bracket frame. Rubber wheels are installed at the bottom of the retractable bracket frame, and a horizontal support plate is fixedly connected to the middle of the retractable bracket frame. The upper and lower ends of the horizontal support plate facing the foldable base are respectively provided with a vertical fixing plate and a horizontal fixing plate. Both the vertical and horizontal fixing plates have fixing holes for connecting to the motorized pump assembly. The retractable bracket frame is also provided with a motorized pump strap, an adjustable waist belt, and a back strap. A carrying handle for use with the motorized pump strap is installed on the pump body.

[0007] Preferably, the retractable bracket frame includes two U-shaped support frames with opposite upper and lower openings. The lower end of the upper U-shaped support frame is inserted into the upper end of the lower U-shaped support frame. The side wall of the lower U-shaped support frame has multiple adjusting pin holes communicating with its interior. The side wall of the upper U-shaped support frame has through holes that cooperate with the adjusting pin holes. The upper and lower U-shaped support frames are fixed by adjusting pins passing through the adjusting pin holes and through holes.

[0008] Preferably, a bracket is installed at the lower part of the end of the foldable base away from the retractable bracket frame.

[0009] Preferably, the gasoline engine is a horizontal shaft gasoline engine.

[0010] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0011] (1) The motorized pump unit provided by this utility model can be used separately from the bracket, or carried on the back, or carried by hand. It can also be transported on flat ground. The multiple usage methods are suitable for different scenarios, and the operation is convenient and efficient.

[0012] (2) The bracket provided by this utility model adopts a telescopic structure and can be adjusted in length to accommodate different human bodies. Rescue personnel of different heights and body types can use it comfortably. It has a wide range of applications and improves the versatility of the equipment.

[0013] (3) This utility model adopts a horizontal axis gasoline engine, reduces the volume of each component, and reduces the weight of the whole machine. The weight of the backpack-type lightweight hydraulic pump is significantly reduced compared with the traditional motor pump, so that a single person can carry and transport it, saving the physical strength of personnel during use, changing the previous dilemma of needing multiple people to carry it, and improving the efficiency of manpower utilization.

[0014] (4) The motorized pump provided by this utility model has a small external volume and occupies a much smaller space when stored and transported. It can make more efficient use of both the loading space of rescue vehicles and the storage space of warehouses, reducing storage and transportation costs. Under the premise of ensuring the rescue effect, it realizes the rational use of resources and has significant economic and social benefits. It can win valuable time for rescuing trapped people in extremely complex areas such as rescue sites. It also plays a good role in flexibly entering the rescue site and improving rescue efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of the motorized pump unit in this utility model;

[0016] Figure 2 This is a side view of the motorized pump unit in this utility model;

[0017] Figure 3 This is a front view of the bracket in this utility model;

[0018] Figure 4 This is a side view of the bracket in this utility model;

[0019] Figure 5 This is the assembly drawing of the backpack-type lightweight hydraulic pump of this utility model.

[0020] Reference numerals: 1-Pump body, 2-Gasoline engine, 3-Oil filling hole, 4-Low-pressure plunger pump, 5-Vacuum filter, 6-Oil passage hole, 7-High-pressure plunger pump, 8-Oil window, 9-Female connector assembly, 10-Male connector assembly, 11-Handle, 12-Adjustable belt, 13-Horizontal support plate, 14-Retractable bracket frame, 15-Powered pump strapping, 16-Adjustable pin, 17-Adjustable pin hole, 18-Vertical fixing plate, 19-Horizontal fixing plate, 20-Bracket, 21-Foldable base, 22-Rubber wheel, 23-Shoulder strap, 24-Fixing screw. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0022] Example 1:

[0023] like Figure 1 , 3 As shown in Figure 4, this utility model discloses a technical solution: a backpack-type portable hydraulic pump, including a motorized pump assembly, which consists of a pump body 1 and a gasoline engine 2. The hydraulic pump also includes a bracket, and the motorized pump assembly can be detachably and fixedly installed on the bracket. The motorized pump assembly can be used separately from the bracket, or carried on the back, or carried by hand, and can also be transported by pulling on flat ground.

[0024] Specifically, the bracket includes a retractable bracket frame 14 made of stainless steel and a foldable base 21. One end of the foldable base 21 is detachably fixed to the bottom of the retractable bracket frame 14 by bolts. Rubber wheels 22 are rotatably installed at both ends of the bottom of the retractable bracket frame 14 via a pivot. Horizontal support plates 13 are welded to both sides of the middle of the retractable bracket frame 14. The upper and lower ends of the horizontal support plates 13 facing the foldable base 21 are respectively provided with an integrally bent vertical fixing plate 18 and a horizontal fixing plate 19. Fixing holes for connecting to the motorized pump unit are opened on both the vertical fixing plate 18 and the horizontal fixing plate 19. The retractable bracket frame 14 is also provided with a motorized pump strapping 15, an adjustable waist belt 12, and a back strap 23. A carrying handle 11 for use with the motorized pump strapping 15 is installed on the pump body 1.

[0025] Example 2:

[0026] like Figure 3 , 4 As shown, this utility model discloses another technical solution, a backpack-type lightweight hydraulic pump, which differs from embodiment 1 in that the above-mentioned telescopic bracket frame 14 includes two U-shaped support frames with opposite upper and lower openings, and the lower end of the upper U-shaped support frame is inserted into the upper end of the lower U-shaped support frame. The side wall of the lower U-shaped support frame is evenly provided with a plurality of adjusting pin holes 17 communicating with its interior, and the side wall of the upper U-shaped support frame is provided with through holes that cooperate with the adjusting pin holes 17. The upper and lower U-shaped support frames are fixed by adjusting pins 16 passing through the adjusting pin holes 17 and through holes. Different adjusting pins 17 are used to cooperate with the through holes to adapt to different usage requirements.

[0027] Specifically, a bracket 20 is movably mounted on the lower part of the end of the foldable base 21 away from the retractable bracket frame 14 via a pivot. Under the action of external force, the bracket 20 can be rotated to make it horizontal or vertical.

[0028] Example 3:

[0029] like Figure 1 , 2As shown, this utility model discloses another technical solution: a backpack-type lightweight hydraulic pump. The difference from embodiment 1 is that the gasoline engine 2 is a horizontal-shaft gasoline engine. In this embodiment, a Honda GXH50 horizontal-shaft gasoline engine is used. The specific structure of the pump body 1 is provided here: a low-pressure plunger pump 4 is connected in series with a high-pressure plunger pump 7. The two plunger pumps are respectively mounted on the upper and lower sides of the output shaft of the gasoline engine 2. The plunger rods of the two plunger pumps cooperate with cams on the output shaft of the gasoline engine 2. The two plunger pumps are sealed inside a die-cast aluminum vacuum filter 5. The oil passage holes 6 on the vacuum filter are... The position of the orifice is lowered below the horizontal position of the output shaft of the gasoline engine 2, which helps to reduce the amount of oil used and thus further reduces the weight of the whole machine. There is an oil filling hole 3 on the top of the pump body 1. The pump body 1 has no inner sidewall. The outer end face of the upper, lower and left and right sidewalls of the pump body is in close contact with the inner sidewall of the gasoline engine 2. The pump body 1, which is made of aluminum die casting, is provided with an oil window 8, a female port assembly 9 and a male port assembly 10 on the upper outer side. In this embodiment, the overall dimensions of the motorized pump assembly are: length 310mm, width 270mm and height 370mm; but it is not limited to the above structure. For example, a WICK-250A type motorized pump or an LD130 / 2.0 type motorized pump can be used.

[0030] This utility model provides a backpack-type lightweight hydraulic pump, such as Figure 5 As shown, the base of the motorized pump unit is placed flat on the foldable base 21 and is securely fixed with fixing screws 24 by the vertical fixing plate 18 and the horizontal fixing plate 19. The upper end is tied to the aluminum alloy carrying handle 11 with a strap 15. It can be carried and used by a single person, or dragged on flat ground, which improves rescue efficiency and wins valuable time for rescuing trapped people in extremely complex areas such as rescue sites, with significant social benefits.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A backpack-type portable hydraulic pump, comprising a motorized pump assembly, the motorized pump assembly including a pump body (1) and a gasoline engine (2), characterized in that: The hydraulic pump also includes a bracket, on which the motorized pump unit is mounted. The bracket includes a telescopic bracket frame (14) and a foldable base (21). One end of the foldable base (21) is detachably and fixedly connected to the bottom of the telescopic bracket frame (14). A rubber wheel (22) is installed at the bottom of the telescopic bracket frame (14), and a horizontal support plate (13) is fixedly connected to the middle of the telescopic bracket frame (14). The upper and lower ends of the horizontal support plate (13) facing the foldable base (21) are respectively provided with a vertical fixing plate (18) and a horizontal fixing plate (19). The vertical fixing plate (18) and the horizontal fixing plate (19) are both provided with fixing holes for connecting to the motorized pump unit. The telescopic bracket frame (14) is also provided with a motorized pump strap (15), an adjustable waist belt (12), and a back strap (23). The pump body (1) is equipped with a carrying handle (11) that works in conjunction with the motorized pump strap (15).

2. The backpack-type portable hydraulic pump according to claim 1, characterized in that: The retractable bracket frame (14) includes two U-shaped support frames with opposite openings at the top and bottom. The lower end of the upper U-shaped support frame is inserted into the upper end of the lower U-shaped support frame. The side wall of the lower U-shaped support frame is provided with multiple adjusting pin holes (17) that communicate with its interior. The side wall of the upper U-shaped support frame is provided with through holes that cooperate with the adjusting pin holes (17). The upper and lower U-shaped support frames are fixed by adjusting pins (16) that pass through the adjusting pin holes (17) and through holes.

3. A backpack-type portable hydraulic pump according to claim 2, characterized in that: The foldable base (21) has a bracket (20) installed at the lower part of the end away from the retractable bracket frame (14).

4. A backpack-type portable hydraulic pump according to claim 1, characterized in that: The gasoline engine (2) is a horizontal shaft gasoline engine.

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