Single-cylinder pumping airtight tool

Abstract

The utility model discloses a single-cylinder pump pressure airtight tool, and belongs to the technical field of single-cylinder pump pressure detection. Comprising a workbench, a fixed seat is fixedly arranged at the upper end of the workbench, a movable block is arranged on one side of the fixed seat, a single-cylinder pump is arranged in a mounting groove of the fixed seat, a piston rod on one side of the single-cylinder pump is fixedly connected with the movable block, and an extension part is arranged on the other side of the single-cylinder pump. According to the single-cylinder pump pressure airtight tool, the sealing performance of a pump core of a single-cylinder pump can be checked in the first time, assembling and disassembling are convenient, the movable block drives the piston rod to reciprocate in the single-cylinder pump in a screw transmission mode, and air pressure can be rapidly, reliably and continuously provided for the single-cylinder pump; and the detection head is communicated with the air outlet end of the single-cylinder pump, and finally, whether the air tightness of the pump core meets the requirement or not is judged according to data fed back by the pressure gauge, so that the accuracy and the reliability of a detection result are greatly ensured, and the production efficiency is improved on the basis of the accuracy and the reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of single-cylinder pump pressure detection, in particular to a single-cylinder pump pressure airtight tooling. Background Art

[0002] A single-acting cylinder pump is a pump that uses compressed air or liquid pressure to act on the piston to generate driving force. Its sealing is an important indicator to measure whether a single-cylinder pump is reliable.

[0003] Publication No. CN113984284A discloses a single-cylinder pump-pressure airtight tooling for an LGIP host. The gas adapter block is provided with multiple LPG interfaces, each of which includes an LPG channel and a ventilation channel. The pump-pressure airtight tooling is fixed to the LPG interface by connecting bolts, and comprises a body, a quick connector, a spring, a metal sealing ring and an O-ring. The body is provided with an inner tube channel and an outer tube channel, the inner short of the outer tube channel is sealingly connected to the ventilation duct, the metal sealing ring is sleeved on the outer periphery of the inner tube channel and clamped between the pump-pressure airtight tooling and the gas adapter block, and is used to seal the LPG channel. The spring surrounds the inner tube channel and limits the metal sealing ring. The O-ring is provided on the outer periphery of the body, and is used to seal the ventilation channel. The quick connector is connected to the outer ends of the inner tube channel and the outer tube channel. This patent is easy to operate and will not damage the sealing surface, meeting the requirements of separate pumping and testing of the LPG channel and the ventilation channel.

[0004] Based on the above problems, after the single-cylinder pump is fixed by the tooling, the inlet and outlet of the single-cylinder pump are pressurized by manually pinching the ear wash bulb. The entire test process relies entirely on observing the pressure gauge readings with the human eye, and at the same time, the strength of pinching the ear wash bulb must be controlled, which makes the operator very easy to fatigue and inefficient. Inaccurate operation may also occur, resulting in unsatisfactory test results, and is not suitable for mass production of products. Utility Model Content

[0005] The purpose of the utility model is to provide a single-cylinder pump pressure airtight tooling, which can check the sealing of the pump core of the single-cylinder pump at the first time and is easy to assemble and disassemble. On one hand, the movable block drives the piston rod to reciprocate in the single-cylinder pump through the screw transmission method, and can quickly, reliably and continuously provide air pressure to the single-cylinder pump. On the other hand, the air inlet end of the single-cylinder pump is sealed and closed by the sealing head, and the air outlet end of the single-cylinder pump is connected to the detection head. Finally, the data fed back by the pressure gauge is used to judge whether the air tightness of the pump core meets the requirements, thereby greatly ensuring the accuracy and reliability of the test results, and on this basis improving the production efficiency, solving the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-cylinder pump pressure airtight tooling, comprising a workbench, a fixed seat is fixedly provided on the upper end of the workbench, a movable block is provided on one side of the fixed seat, a single-cylinder pump is provided in the mounting groove of the fixed seat, the piston rod on one side of the single-cylinder pump is fixedly connected to the movable block, an extension portion is provided on the other side of the single-cylinder pump, a cover plate is provided on the upper end of the fixed seat, the cover plate is fixedly connected to the fixed seat by screws, a cylinder is provided on one side of the extension portion, a detection head is provided on the telescopic end of the cylinder, a pressure gauge is provided at the rear end of the cylinder, and the pressure gauge is electrically connected to the detection head.

[0007] Preferably, an air inlet end is provided at the upper end of the extension portion, an air outlet end is provided at the end of the extension portion away from the single-cylinder pump, and a sealing head is sealed on the air inlet end.

[0008] Preferably, a groove is provided inside the workbench, and sliding grooves are provided on both the front and rear sides of the groove.

[0009] Preferably, a screw is provided inside the groove, and one end of the screw extends to the outside of the workbench and is connected to a handle, and the movable block is transmission-connected to the screw through the moving block.

[0010] Preferably, a slider is provided at the bottom of the movable block, and the slider is slidably connected to the workbench through a sliding groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model discloses a single-cylinder pump pressure airtight tooling, which can immediately check the sealing of the pump core of the single-cylinder pump, and is easy to assemble and disassemble. On one hand, the movable block drives the piston rod to reciprocate in the single-cylinder pump by means of screw transmission, which can quickly, reliably and continuously provide air pressure to the single-cylinder pump. On the other hand, the sealing head seals the air inlet end of the single-cylinder pump, and the detection head is connected to the air outlet end of the single-cylinder pump.

[0013] The utility model relates to a single-cylinder pump pressure airtight tool, which determines whether the airtightness of the pump core meets the requirements through data fed back by a pressure gauge, thereby greatly ensuring the accuracy and reliability of the test results and improving production efficiency on this basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the cover plate and the fixing seat of the utility model;

[0016] Figure 3 This is a bottom view of the structure of the movable block of the present invention.

[0017] In the figure: 1. Workbench; 2. Fixed seat; 3. Movable block; 4. Cylinder; 5. Pressure gauge; 6. Single-cylinder pump; 7. Extension; 8. Cover plate; 101. Groove; 102. Slide; 103. Screw; 301. Moving block; 302. Slider; 401. Detection head; 601. Piston rod; 701. Air inlet end; 702. Sealing head; 703. Air outlet end. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 , this embodiment provides the following technical solutions:

[0020] A single-cylinder pump pressure airtight tooling, comprising a workbench 1, a fixed base 2 is fixedly provided on the upper end of the workbench 1, a movable block 3 is provided on one side of the fixed base 2, a single-cylinder pump 6 is provided in the mounting groove of the fixed base 2, a piston rod 601 on one side of the single-cylinder pump 6 is fixedly connected to the movable block 3, and the fixed connection method can be a threaded connection, an extension part 7 is provided on the other side of the single-cylinder pump 6, a cover plate 8 is provided on the upper end of the fixed base 2, and the cover plate 8 is fixedly connected to the fixed base 2 by screws, a cylinder 4 is provided on one side of the extension part 7, and the extension part of the cylinder 4 is fixedly connected to the fixed base 2 by screws, and a cylinder 4 is provided on one side of the extension part 7. A detection head 401 is provided on the retracted end, and a pressure gauge 5 is provided at the rear end of the cylinder 4, and the pressure gauge 5 is electrically connected to the detection head 401. The cooperation between the fixing seat 2 and the cover plate 8 has the function of lifting and tightening the single-cylinder pump 6. The telescopic end is driven to move by the cylinder 4, thereby driving the detection head 401 to connect to the air outlet end 703. The piston rod 601 is driven to reciprocate in the single-cylinder pump 6 through the movable block 3 to simulate the actual working conditions of the pump core. Finally, the data fed back by the pressure gauge 5 is used to judge whether the air tightness of the pump core meets the production requirements.

[0021] In this embodiment, an air inlet end 701 is provided at the upper end of the extension portion 7, and an air outlet end 703 is provided at the end of the extension portion 7 away from the single-cylinder pump 6. A sealing head 702 is sealed on the air inlet end 701. During inspection, the sealing head 702 needs to be connected to the air inlet end 701 to block the air inlet port to ensure smooth inspection.

[0022] In this embodiment, a groove 101 is provided inside the workbench 1, and a slide groove 102 is provided on the front and rear sides of the groove 101. A screw 103 is provided inside the groove 101, and one end of the screw 103 extends to the outside of the workbench 1 and is connected to a handle. The movable block 3 is transmission-connected to the screw 103 through the movable block 301. A slider 302 is provided at the bottom of the movable block 3. The slider 302 is slidingly connected to the workbench 1 through the slide groove 102. By rotating the handle of the screw 103, the screw 103 is driven to rotate. The movable block 3 reciprocates horizontally under the drive of the movable block 301, and can drive the piston rod 601 to move. The cooperation of the slide groove 102 and the slider 302 ensures the stability of the movable block 3 during movement.

[0023] Working principle: When in use, first connect the piston rod 601 of the single-cylinder pump 6 with the movable block 3, then lift and tighten the single-cylinder pump 6 through the fixing seat 2 in combination with the cover plate 8, then seal and close the air inlet end 701 of the single-cylinder pump 6 with the blocking head 702, and connect the air outlet end 703 of the single-cylinder pump 6 under the action of the cylinder 4 with the detection head 401. By rotating the handle of the screw 103, the screw 103 is driven to rotate, and the movable block 3 moves back and forth horizontally under the drive of the moving block 301, which can drive the piston rod 601 to reciprocate in the single-cylinder pump 6 to simulate the actual working conditions of the pump core. Finally, the data feedback from the pressure gauge 5 is used to judge whether the air tightness of the pump core meets the production requirements.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A single-cylinder pump pressure airtight tooling, comprising a workbench (1), characterized in that: A fixed base (2) is fixedly provided at the upper end of the workbench (1), a movable block (3) is provided on one side of the fixed base (2), a single-cylinder pump (6) is provided in the mounting groove of the fixed base (2), a piston rod (601) on one side of the single-cylinder pump (6) is fixedly connected to the movable block (3), an extension portion (7) is provided on the other side of the single-cylinder pump (6), a cover plate (8) is provided at the upper end of the fixed base (2), a cylinder (4) is provided on one side of the extension portion (7), a detection head (401) is provided on the telescopic end of the cylinder (4), and a pressure gauge (5) is provided at the rear end of the cylinder (4).

2. The single-cylinder pump pressure airtight tooling according to claim 1, characterized in that: An air inlet (701) is provided at the upper end of the extension portion (7), an air outlet (703) is provided at the end of the extension portion (7) away from the single-cylinder pump (6), and a sealing head (702) is sealed on the air inlet (701).

3. The single-cylinder pump pressure airtight tooling according to claim 1, characterized in that: A groove (101) is provided inside the workbench (1), and sliding grooves (102) are provided on both the front and rear sides of the groove (101).

4. The single-cylinder pump pressure airtight tooling according to claim 3, characterized in that: A screw rod (103) is provided inside the groove (101), and one end of the screw rod (103) extends to the outside of the workbench (1) and is connected to a handle. The movable block (3) is transmission-connected to the screw rod (103) via the moving block (301).

5. The single-cylinder pump pressure airtight tooling according to claim 1, characterized in that: A slider (302) is provided at the bottom of the movable block (3), and the slider (302) is slidably connected to the workbench (1) via a sliding groove (102).

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