Movable portable fixed-proportion pneumatic liquid injection pump

Abstract

The utility model relates to a movable portable fixed-proportion pneumatic liquid injection pump which comprises a base frame and a shell arranged at the upper end of the base frame in a covering mode, and a main air pump and an emulsion pump are arranged on the base frame. An emulsion container is arranged on one side of the base frame; a lifting frame is longitudinally arranged at one end of the base frame; a telescopic rod is movably arranged on the lifting frame; a telescopic wheel set is arranged at the position, located at one end of the lifting frame, of the base frame, the telescopic wheel set comprises two telescopic wheel assemblies distributed on the two sides of the base frame, and each telescopic wheel assembly comprises a support plate, a roller, a connecting rod assembly, a telescopic pull rod, a guide seat and a limiting assembly; one end of the connecting rod assembly is hinged to the support plate, the other end of the connecting rod assembly is hinged to one end of the telescopic pull rod, the telescopic pull rod is guided through a guide seat arranged on the base frame, and the rolling wheels are driven by the connecting rod assembly to expand downwards or contract upwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic liquid injection devices, and particularly relates to a mobile portable proportional pneumatic liquid injection pump. Background Art

[0002] The pneumatic liquid injection pump for coal mines is mainly applicable to the liquid injection support of external injection type single hydraulic props and hydraulic supports in coal mines at any location, the injection of irregular small residual coal faces at the heading face, rescue and emergency repair, and rapid emergency column lifting support for roadway repair. Especially in the narrow heading face section of the mine shaft opening, it shows advantages that cannot be replaced by other liquid injection pumps. It can also be used as a hydraulic test bench for pressure testing during the maintenance of single hydraulic props. Therefore, the pneumatic liquid injection pump for coal mines is an important mining machinery component. The traditional pneumatic liquid injection pump has a bulky structure and is not convenient to carry underground. Chinese patent document: CN202322634275.8 discloses a proportional pneumatic liquid injection pump, which is carried only through the handle on the top of the casing. In actual use, there are problems of inconvenient movement and labor consumption; moreover, the emulsion liquid bottle is arranged outside the box body through a placement rack, which not only has an unattractive appearance, but also the emulsion liquid bottle is easily damaged due to external force. Summary of the Utility Model

[0003] In view of the above problems, the utility model discloses a mobile portable proportional pneumatic liquid injection pump, which designs the original external emulsion liquid container as an internal type, avoiding the problem of the emulsion liquid bottle being damaged due to external force during use. At the same time, a set of retractable wheel sets are adopted at the bottom of the box body, solving the problem of inconvenient movement of the pneumatic liquid injection pump in the prior art.

[0004] The specific technical solutions are as follows:

[0005] Mobile portable proportional pneumatic liquid injection pump, including a base frame and a housing covering the upper end of the base frame. A main air pump and an emulsion pump are arranged on the base frame. A detachable emulsion container is arranged on one side of the base frame, and the emulsion container is connected to the liquid suction end of the emulsion pump through a pipeline. A lifting frame is longitudinally arranged at one end of the base frame, and a telescopic rod is slidably connected to the lifting frame. The upper end of the telescopic rod extends to the outside of the housing. A set of retractable wheel sets are arranged at one end of the base frame where the lifting frame is located. The retractable wheel sets include two retractable wheel assemblies distributed on both sides of the base frame, and through openings for accommodating the retractable wheel assemblies are provided on both sides of the bottom end of the base frame. The retractable wheel assembly includes a support plate, rollers, a connecting rod assembly, a telescopic pull rod, a guide seat and a limiting assembly. The rollers are located in the through openings, and a pin is provided at the center of each roller. Both ends of the pin are respectively hinged to the middle of a connecting rod assembly. One end of the connecting rod assembly is hinged to the support plate arranged at one end of the base frame, and the other end of the connecting rod assembly is hinged to one end of the telescopic pull rod. The telescopic pull rod is guided by the guide seat arranged on the base frame, and the rollers are driven by the connecting rod assembly to expand downward or contract upward. The telescopic pull rod is limited by the limiting assembly, and the retractable wheel assembly is kept in a contracted state or an expanded state.

[0006] Further, the connecting rod assembly includes a first connecting rod, a second connecting rod and a connecting rod. The adjacent ends of the first connecting rod and the second connecting rod are both hinged to the pin. The other end of the first connecting rod is hinged to the support plate. The other ends of the two second connecting rods are connected by a horizontally arranged connecting rod. The connecting rod is hinged to one end of the telescopic pull rod.

[0007] Further, the guide seat is sleeved on the outside of the telescopic pull rod, and a horizontal sliding connection between the guide seat and the telescopic pull rod is realized. Two limiting holes for cooperating with the limiting assembly are horizontally opened at both ends of the telescopic pull rod.

[0008] Further, the limiting assembly includes a limiting rod, a movable seat and a spring. The movable seat is arranged on the base frame and on one side of the guide seat. The limiting rod is slidably arranged in the movable seat. One end of the limiting rod penetrates through the housing, and the other end of the limiting rod penetrates through one side of the guide seat and is embedded in the limiting hole. A retaining ring is provided at the other end of the limiting rod. The spring is sleeved on the limiting rod, and both ends of the spring are respectively pressed against the movable seat and the retaining ring, and one end of the limiting rod is kept in a limiting state for the telescopic pull rod under the action of the spring force.

[0009] Further, the edge of the limiting hole is chamfered.

[0010] Further, a replacement opening is provided on one side of the housing where the emulsion container is located, and a box door is hinged at the replacement opening.

[0011] Further, one end of the base frame away from the lifting frame is provided with a mounting plate, and a liquid suction pipe orifice, a liquid discharge pipe orifice and an air inlet pipe orifice are arranged on the mounting plate, and the liquid suction pipe orifice, the liquid discharge pipe orifice and the air inlet pipe orifice all penetrate through one end of the housing.

[0012] Further, a pressure gauge is installed on one side of the housing, and the pressure gauge is connected to the liquid discharge pipeline of the main air pump.

[0013] The beneficial effects of the present utility model are reflected in:

[0014] It has a beautiful appearance. The original external emulsion bottle is changed to an internal one, effectively avoiding the problem of the emulsion bottle being damaged by external force. And a box door is arranged on one side of the housing, making it more rapid and convenient to add emulsion.

[0015] The retractable wheel set is combined with a telescopic rod. When the wheel set is lowered, the rapid transfer of the grouting pump can be realized. After reaching the working site, the wheel set and the pull rod are retracted to minimize the working space and ensure the stability during work.

[0016] By arranging a mounting plate at one end of the base frame and concentrating various pipe orifices at one end of the pump body, the pipeline connection is ensured to be more concise and clear, avoiding errors when connecting pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is a schematic position structural diagram of the emulsion container in the present utility model.

[0019] Figure 3 is a schematic structural diagram when the telescopic wheel set in the present utility model is retracted.

[0020] Figure 4 is a side view after the lifting rod in the present utility model is unfolded.

[0021] Figure 5 is a schematic internal structural diagram of the pneumatic liquid injection pump in the present utility model.

[0022] Figure 6 is a schematic bottom structural diagram of the present utility model.

[0023] Figure 7 is an enlarged schematic diagram when the telescopic wheel assembly in the present utility model is unfolded.

[0024] Description of reference numerals: base frame 1, mounting plate 11, liquid suction nozzle 12, liquid discharge nozzle 13, air inlet nozzle 14, through port 15, housing 2, replacement port 21, cabinet door 22, pressure gauge 23, main air pump 3, emulsion pump 4, emulsion container 5, lifting frame 6, lifting rod 61, telescopic wheel assembly 7, support plate 71, roller 72, axle pin 721, first connecting rod 73, second connecting rod 74, connecting rod 75, telescopic pull rod 76, limiting hole 761, guiding seat 77, limiting rod 78, spring 781, retaining ring 782, movable seat 79. Detailed implementation manners

[0025] To make the technical solutions of the present utility model clearer and more definite, the present utility model will be further described below with reference to the accompanying drawings. Any technical solutions obtained by equivalent substitution of the technical features of the present utility model and through conventional reasoning fall within the protection scope of the present utility model. The fixed connections and fixed settings mentioned in the present utility model are all common connection methods in the mechanical field, and welding, bolt and nut connections, and screw connections are all applicable.

[0026] In the description of the present inventive concept, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present inventive concept and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Please refer to Figures 1-7 , this embodiment provides a mobile and portable pneumatic injection pump with a fixed ratio, which includes a base frame 1 and a housing 2 covering the upper end of the base frame 1. A handle is provided at the top of the housing 2, and feet are provided around the bottom of the base frame 1. A main air pump 3 is provided on the base frame 1. Suction and discharge valves are provided at both ends of the main air pump 3, and a liquid suction pipeline and a liquid discharge pipeline are respectively connected to the suction and discharge valves. An emulsion pump 4 is provided at one end of the main air pump 3. An emulsion container 5 is detachably provided on one side of the base frame 1. The emulsion container 5 is connected to the suction end of the emulsion pump 4 through a pipeline, and the discharge end of the emulsion pump 4 is connected to the liquid suction pipeline through a pipeline. A replacement port 21 is provided on one side of the housing 2 where the emulsion container 5 is located, and a cabinet door 22 is hinged at the replacement port 21. The emulsion container 5 can be disassembled and replaced through the replacement port 21.

[0028] One end of the base frame 1 is longitudinally provided with a lifting frame 6. A telescopic rod is slidably connected to the lifting frame 6, and the upper end of the telescopic rod extends to the outside of the housing 2. A set of retractable wheel sets is provided at one end of the base frame 1 where the lifting frame 6 is located. The retractable wheel set includes two retractable wheel assemblies 7 distributed on both sides of the base frame 1. Through openings 15 for accommodating the retractable wheel assemblies 7 are formed on both sides of the bottom end of the base frame 1, and the through openings 15 extend to one end of the housing 2. The retractable wheel assembly includes a support plate 71, a roller 72, a connecting rod assembly, a telescopic pull rod 76, a guide seat 77 and a limiting assembly. The roller 72 is located in the through opening 15, and a pin 721 is provided at the center of each roller 72. Both ends of the pin 721 are respectively hinged to the middle of a connecting rod assembly. One end of the connecting rod assembly is hinged to the support plate 71 longitudinally arranged at one end of the base frame 1, and the other end of the connecting rod assembly is hinged to one end of the telescopic pull rod 76. The telescopic pull rod 76 is guided by the guide seat 77 provided on the base frame 1, so that the roller 72 is driven by the connecting rod assembly to expand downward or contract upward. The guide seat 77 is sleeved outside the telescopic pull rod 76, and a horizontal sliding connection between the guide seat 77 and the telescopic pull rod 76 is realized. Two limiting holes 761 for cooperating with the limiting assembly are horizontally formed at both ends of the telescopic pull rod 76. The telescopic pull rod 76 is limited by the limiting assembly, so that the retractable wheel assembly 7 is kept in a contracted state or an expanded state.

[0029] In this embodiment, the connecting rod assembly includes a first connecting rod 73, a second connecting rod 74 and a connecting rod 75. The adjacent ends of the first connecting rod 73 and the second connecting rod 74 are both hinged to the pin 721. The other end of the first connecting rod 73 is hinged to the support plate 71. The other ends of the two second connecting rods 74 are connected by a horizontally arranged connecting rod 75. The connecting rod 75 is hinged to one end of the telescopic pull rod 76.

[0030] In this embodiment, the limiting assembly includes a limiting rod 78, a movable seat 79 and a spring 781. The movable seat 79 is arranged on the base frame 1 and is located on one side of the guide seat 77. The limiting rod 78 is slidably arranged in the movable seat 79. One end of the limiting rod 78 penetrates through the housing 2, and the other end of the limiting rod 78 penetrates through one side of the guide seat 77 and is embedded in the limiting hole 761. A retaining ring 782 is provided at the other end of the limiting rod 78. The spring 781 is sleeved on the limiting rod 78. Both ends of the spring 781 are respectively pressed against the movable seat 79 and the retaining ring 782, so that one end of the limiting rod 78 keeps limiting the telescopic pull rod 76 under the action of the force of the spring 781. Since one end of the limiting rod 78 extends outside the housing 2, by pulling the limiting rod 78, the limiting rod 78 can be disengaged from the limiting hole 761.

[0031] When expanding the telescopic wheel set, first lift the grouting pump, and then pull the limit rod 78 outwards to disengage the limit rod 78 from the limit hole 761. Under the action of gravity or with manual assistance, the roller 72 penetrates downward through the through hole 15, causing the connecting rod assembly to fold and drive the displacement of the telescopic pull rod 76. At this time, the position of the limit rod 78 corresponds to another limit hole 761 on the telescopic pull rod 76. Subsequently, release the limit rod 78, and under the action of the spring 781, the limit rod 78 is embedded into another limit hole 761 to keep the telescopic wheel assembly 7 fixed.

[0032] When storing the telescopic wheel set, pull the limit rods 78 on both sides outwards to disengage the limit rods 78 from the limit holes 761, so as not to limit the telescopic wheel set anymore. The whole grouting pump descends, causing the roller 72 to automatically retract into the through hole 15 or retract into the through hole 15 with manual assistance. The connecting rod assembly straightens and unfolds to drive the displacement of the telescopic pull rod 76. At this time, the position of the limit rod 78 corresponds to a limit hole 761 on the telescopic pull rod 76. Subsequently, release the limit rod 78, and under the action of the spring 781, the limit rod 78 is embedded into this limit hole 761, so as to keep the telescopic wheel assembly 7 fixed in the housing 2.

[0033] In this embodiment, the edge of the limit hole 761 is chamfered so that the limit rod 78 can be smoothly embedded into the limit hole 761.

[0034] In this embodiment, an installation plate 11 is longitudinally arranged at one end of the base frame 1 away from the lifting frame 6. A liquid suction pipe orifice 12, a liquid discharge pipe orifice 13, and an air inlet pipe orifice 14 are arranged on the installation plate 11. The liquid suction pipe orifice 12, the liquid discharge pipe orifice 13, and the air inlet pipe orifice 14 all penetrate through one end of the housing 2. The liquid suction pipe orifice 12 is connected to the liquid suction pipeline, the liquid discharge pipe orifice 13 is connected to the liquid discharge pipeline, and the air inlet pipe orifice 14 is connected to the air source triple unit arranged on the main air pump 3.

[0035] In this embodiment, a pressure gauge 23 is installed on one side of the housing 2. The pressure gauge 23 is connected to the liquid discharge pipeline of the main air pump 3 and is used to detect the pipeline hydraulic pressure.

[0036] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. Mobile portable fixed-ratio pneumatic liquid injection pump, comprising a base frame (1) and a housing (2) covering the upper end of the base frame, wherein a main air pump (3) and an emulsion pump (4) are arranged on the base frame (1); characterized in that, On one side of the base frame, an emulsion container (5) is detachably arranged, and the emulsion container (5) is connected to the liquid suction end of an emulsion pump (4) through a pipeline; at one end of the base frame (1), a lifting frame (6) is longitudinally arranged, and a telescopic rod is slidably connected to the lifting frame (6), and the upper end of the telescopic rod extends to the outside of the housing (2); at one end of the base frame (1) located at the lifting frame (6), a set of retractable wheel sets is provided, and the retractable wheel sets include two retractable wheel assemblies (7) distributed on both sides of the base frame (1), and through openings (15) for accommodating the retractable wheel assemblies (7) are formed on both sides of the bottom end of the base frame (1). The retractable wheel assembly (7) includes a support plate (71), a roller (72), a connecting rod assembly, a telescopic pull rod (76), a guide seat (77) and a limiting assembly. The roller (72) is located in the through opening (15), and a pin (721) is provided at the center of the roller (72). Both ends of the pin (721) are respectively hinged to the middle of a connecting rod assembly. One end of the connecting rod assembly is hinged to the support plate (71) arranged at one end of the base frame (1), and the other end of the connecting rod assembly is hinged to one end of the telescopic pull rod (76). The telescopic pull rod (76) is guided by the guide seat (77) arranged on the base frame (1), and the roller (72) is driven by the connecting rod assembly to expand downward or contract upward; the telescopic pull rod (76) is limited by the limiting assembly, and the retractable wheel assembly (7) is kept in a contracted state or an expanded state.

2. The mobile portable fixed-ratio pneumatic liquid injection pump according to claim 1, wherein, The connecting rod assembly includes a first connecting rod (73), a second connecting rod (74) and a connecting rod (75). The adjacent ends of the first connecting rod (73) and the second connecting rod (74) are both hinged to the pin (721). The other ends of the first connecting rods (73) are both hinged to the support plate (71). The other ends of the two second connecting rods (74) are connected by a horizontally arranged connecting rod (75). The connecting rod (75) is hinged to one end of the telescopic pull rod (76).

3. The mobile portable proportional pneumatic liquid injection pump according to claim 1, wherein The guide seat (77) is sleeved on the outside of the telescopic pull rod (76), and a horizontal sliding connection between the guide seat (77) and the telescopic pull rod (76) is realized. Two limiting holes (761) for cooperating with the limiting assembly are horizontally formed at both ends of the telescopic pull rod (76).

4. The mobile portable proportional pneumatic liquid injection pump according to claim 3, wherein, The limiting assembly includes a limiting rod (78), a movable seat (79) and a spring (781). The movable seat (79) is arranged on the base frame (1) and on one side of the guide seat (77). The limiting rod (78) is slidably arranged in the movable seat (79). One end of the limiting rod (78) penetrates through the housing (2). The other end of the limiting rod (78) penetrates through one side of the guide seat (77) and is embedded in the limiting hole (761). And a retaining ring (782) is provided at the other end of the limiting rod (78). The spring (781) is sleeved on the limiting rod (78), and both ends of the spring (781) are respectively pressed on the movable seat (79) and the retaining ring (782), and one end of the limiting rod (78) is kept in limiting the telescopic pull rod (76) under the action of the spring (781) force.

5. The mobile portable fixed-ratio pneumatic liquid injection pump according to claim 3, characterized in that, The edge of the limit hole (761) is chamfered.

6. The mobile portable proportional pneumatic liquid injection pump according to claim 1, wherein, On one side of the emulsion container (5), the housing (2) is provided with a replacement opening (21), and a box door (22) is hinged at the replacement opening (21).

7. The mobile portable proportional pneumatic liquid injection pump according to claim 1, characterized in that, One end of the base frame (1) away from the lifting frame (6) is provided with a mounting plate (11). A liquid suction pipe orifice (12), a liquid discharge pipe orifice (13) and an air inlet pipe orifice (14) are arranged on the mounting plate (11), and the liquid suction pipe orifice (12), the liquid discharge pipe orifice (13) and the air inlet pipe orifice (14) all penetrate through one end of the housing (2).

8. The mobile portable proportional pneumatic liquid injection pump according to claim 1, characterized in that, A pressure gauge (23) is installed on one side of the housing (2), and the pressure gauge (23) is connected to the liquid discharge pipeline of the main air pump (3).

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