Auxiliary pressing device of reciprocating type manual pump

Abstract

The utility model relates to the technical field of general manual tools, in particular to an auxiliary pressing device of a reciprocating type manual pump. The reciprocating type manual pump auxiliary pressing device comprises a base frame, the base frame is an L-shaped base frame comprising a first long side and a first short side which are perpendicular to each other, the first long side forms a handrail, and a restraining sleeve used for being arranged on an outer sheath of an adjusting rod in a sleeving mode is installed on the first short side in the direction parallel to the first long side. A downward pressing handle is hinged to the base frame, a push rod coaxial with the restraining sleeve is movably installed on the base frame in a guiding mode, and the downward pressing handle is matched with the push rod and drives the push rod to move to push the adjusting rod during downward pressing. Compared with the technical scheme that a piston cylinder with a complex structure is matched with a piston in the prior art, the structure formed by hinging the rod-shaped structures occupies smaller space and is more convenient to use in a narrow space area where the oil injector manual pump is closely arranged.

Description

TECHNICAL FIELD

[0001] The utility model relates to general hand tool technical field especially relates to a reciprocating type hand pump auxiliary pressing device. BACKGROUND

[0002] Before starting, reciprocating compressor must deliver the lubricating oil in the oiler to each lubricating point of the compressor through the oil injection pump, and the oil injection pump adjusting rod needs to be continuously pressed, which aims to fully lubricate the cylinder, piston ring, support ring, packing and other oil injection parts, and form a continuous lubricating oil circulation channel to establish a good lubricating oil circulation system for the cylinder packing and other parts. The adjusting rod of the oil injection pump protrudes from the upper surface of the oil injection pump, and a protective outer sleeve is sleeved on the protruding part. During use, no special tool is needed, and the adjusting rod top is generally continuously pressed by fingers with a vertical downward force to pump lubricating oil to each position of the compressor. However, due to the close arrangement of the oil injection pump manual pump and the small space, the finger pressing method is prone to cause personal injury and low efficiency.

[0003] Currently, an open wrench or a flat-bladed screwdriver is generally used as a lever fulcrum by clamping the oil injection pump locking nut at the front end, and the handle of the open wrench or flat-bladed screwdriver is pressed down to make the adjusting rod reciprocate. However, when using this method, the force exerted by the open wrench or flat-bladed screwdriver on the adjusting rod is not vertical downward, which is easy to damage the oil injection pump. At the same time, during the use of the tool, there are risks of tool slipping, equipment damage, and personal injury.

[0004] To overcome the above technical problems, a compressor oiler oil injection pump manual pump oil tool is disclosed in the Chinese patent document with the authorization publication number CN206636731U. The tool is composed of a piston cylinder, a fixed bracket fixed on the piston cylinder, an inverted T-shaped piston, a gland installed on the piston cylinder, and a pressure rod. The inverted T-shaped piston is installed in the piston cylinder, the piston rod passes out from the gland, and the part of the piston rod passing out of the gland is provided with a pin shaft. The one end of the pressure rod is hinged to the fixed bracket on the side wall of the piston cylinder, and the middle part has a through hole for the pin shaft on the piston rod to pass through. In use, the piston cylinder is sleeved on the oil injection pump adjusting rod, the pressure rod is pressed through the piston to press the oil injection pump adjusting rod to drive the plunger in the oil injection pump to reciprocate up and down, and the lubricating oil is delivered to each lubricating point of the compressor. If there are multiple oil injection pumps on the compressor, the above operation can be repeated to meet the starting requirements.

[0005] However, this tool has a fixed bracket inclinedly connected with the piston cylinder, and the fixed bracket extends to one side of the piston cylinder in an inclined manner, which occupies a large space in the horizontal direction. Moreover, the size of the sleeve piston structure itself is relatively large, which is not convenient to carry and use due to the close arrangement of the oil injection pump manual pump and the small space. SUMMARY

[0006] The purpose of this utility model is to provide a reciprocating manual pump auxiliary pressing device to solve the problem that the existing manual oil pump device occupies a large space in the horizontal direction and is inconvenient to use in a small space.

[0007] To achieve the above objectives, the technical solution of this utility model for a reciprocating manual pump auxiliary pressing device is as follows: A reciprocating manual pump auxiliary pressing device includes a base frame, which is an L-shaped base frame including a first long side and a first short side that are perpendicular to each other. The first long side forms a handrail. A constraint sleeve for fitting onto the outer sheath of the adjusting rod is installed on the first short side in a direction parallel to the first long side. A pressing handle is hinged to the base frame. A push rod coaxial with the constraint sleeve is also guided and movably installed on the base frame. The pressing handle cooperates with the push rod and drives the push rod to move and push the adjusting rod when pressing down.

[0008] Furthermore, a cam is provided on the pressing handle, and the cam and the push rod constitute a cam push rod mechanism.

[0009] Furthermore, the push rod engages with the outer contour surface of the cam, and the push rod is equipped with a return spring.

[0010] Furthermore, a guide constraint is connected to the first long side on the side of the first short side away from the constraint sleeve. The push rod guide is inserted into the guide constraint, and one end of the push rod on one side of the guide constraint engages with the cam push. The other end of the push rod on the other side of the guide constraint extends into the constraint sleeve. A spring seat is provided on the push rod on the side of the guide constraint near the first short side. The spring seat blocks the guide constraint. A reset spring is fitted on the push rod and is located between the spring seat and the first short side.

[0011] Furthermore, the position of the guide constraint is adjustable along the length of the first long side.

[0012] Furthermore, a second short side is provided at the end of the first short side that is away from the first long side. The first long side and the second short side are provided with elongated holes. The two ends of the guide constraint member are installed on the elongated holes by connecting bolts. The elongated holes are provided with multiple connecting holes arranged in the vertical direction.

[0013] Furthermore, the end of the push rod that mates with the cam has a mating groove, the cam is disc-shaped, and its edge is located within the mating groove.

[0014] Furthermore, the sleeve has set screws screwed onto its wall to tighten the outer sheath of the adjusting rod.

[0015] Furthermore, a balancing support leg is provided on the side of the first short side of the constraint sleeve located at the free end of the pressing handle.

[0016] Furthermore, the ends of the balancing outriggers are flush with the ends of the constraint sleeves.

[0017] The utility model discloses a kind of reciprocating manual pump auxiliary pressing devices, when using, it is sleeved on the adjusting rod outer sheath by constraint sleeve, using down handle makes push rod downward movement and drives adjusting rod downward displacement, by unloading force to down handle, push rod is displaced upward by spring elastic force, adjusting rod also runs upward, so form first reciprocating motion and complete pump oil device, repeat this operation can complete the pump oil work of this pump.This device is used, constraint sleeve is sleeved on the adjusting rod outer sheath, first long side and first short side are L-shaped, first long side is vertically upward, horizontal direction occupies less space, it is more convenient to use in narrow space, and reset spring can make push rod reset, make operator work more relaxed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of reciprocating manual pump auxiliary pressing device of the utility model;

[0019] Figure 2 It is the left view of overall structure of reciprocating manual pump auxiliary pressing device of the utility model;

[0020] Figure 3 It is the push rod structure schematic diagram of reciprocating manual pump auxiliary pressing device of the utility model;

[0021] Figure 4 It is the left view of push rod structure of reciprocating manual pump auxiliary pressing device of the utility model;

[0022] Figure 5 It is the guiding constraint piece structure schematic diagram of reciprocating manual pump auxiliary pressing device of the utility model;

[0023] Figure 6 It is the guiding constraint piece structure plan view of reciprocating manual pump auxiliary pressing device of the utility model.

[0024] In the drawing: 1, base frame;11, first long side;12, first short side;121, second short side;122, balance leg;13, constraint sleeve;131, jackscrew;14, mounting long hole;15, limit hole;2, cam push rod mechanism;21, push rod;211, reset spring;212, spring seat;213, guiding constraint piece;214, matching groove;22, cam;3, pin;4, rubber protective sleeve. DETAILED DESCRIPTION

[0025] The features and performance of the utility model are further described in detail in connection with embodiments.

[0026] The utility model discloses a reciprocating manual pump auxiliary pressing device mainly aims at setting up the auxiliary pressing device on the basis of not changing the compressor oil injection pump, and the sleeve of the bottom of the auxiliary pressing device is sleeved on the outer sheath of the compressor oil injection pump adjusting rod, and the reciprocating motion is formed by the manual pressing handle to complete the oil injection, and the space occupation is small, and it is more convenient to use in the narrow space.

[0027] Based on the above main idea, different embodiments are provided below for illustration.

[0028] In example 1, as Figure 1 , the reciprocating manual pump auxiliary pressing device comprises a base frame 1, the base frame 1 is an L-shaped base frame comprising a first long side 11 and a first short side 12 perpendicular to each other, the first long side 11 constitutes a handrail, a constraint sleeve 13 for sleeving on the outer sheath of the adjusting rod is mounted on the first short side 12 in the direction parallel to the first long side 11, a pressing handle 23 is hinged on the base frame 1, and a push rod 21 coaxial with the constraint sleeve 13 is movably mounted on the base frame 1, the pressing handle 23 cooperates with the push rod 21 and drives the push rod 21 to move and push the adjusting rod when pressed.

[0029] On the basis of the above-mentioned embodiments, in one embodiment, the middle part of the pressing handle 23 has a through hole, the upper end of the push rod 21 passes through the pin shaft and is fixed in the middle through hole of the pressing handle 23, and the connection mode of the piston rod and the pressurizing rod in the manual oil injection tool of the compressor oil injection device disclosed in the authorized announcement No. CN206636731U is the same. In a preferred embodiment, in order to make the structure simpler and the installation more convenient, a cam 22 is arranged on the pressing handle 23, the cam 22 and the push rod 21 constitute a cam push rod mechanism 2, the push rod 21 and the outer contour surface of the cam 22 are in push fitting, and the push rod 21 is provided with a return spring 211. When the pressing handle 23 is unloaded and runs upward, the return spring 211 can make the push rod 21 displace upward. In another embodiment, the cam 22 is a slot cam with a cam slot opened on the end face of the disc-shaped wheel body, the slot wall of the cam slot constitutes the cam contour, the upper end of the push rod 21 extends into the cam slot through the matching head perpendicular to the push rod 21, and the cam 22 constitutes a cam push rod structure, and at this time, the return spring 211 is no longer needed.

[0030] On the basis of the above-mentioned embodiments, in one embodiment, the constraint sleeve 13 has a protruding sleeve part towards the direction of the push rod 21, the push rod 21 extends into the constraint sleeve 13 from the part, and the push rod 21 can move in the constraint sleeve 13 in a guided manner. In a preferred embodiment, in order to make the structure more stable, as Figure 1The first long side 11 is connected with a guide constraint 213 on the side away from the first short side 12, the push rod 21 is guided and installed in the guide constraint 213, and the end on the side of the guide constraint 213 is in top pushing cooperation with the cam 22, and the end on the other side of the guide constraint 213 extends into the constraint sleeve 13. The push rod 21 is provided with a spring seat 212 on the side of the guide constraint 213 close to the first short side 12, the spring seat 212 is blocked with the guide constraint 213, and the reset spring 211 is sleeved on the push rod 21 and between the spring seat 212 and the first short side 12.

[0031] On the basis of the above-mentioned embodiments, in one embodiment, the first short side 12 is provided with a second short side 121 on the end away from the first long side 11, and the guide constraint 213 is welded on the first long side 11 and the second short side 121. In a preferred embodiment, in order to better maintain the device, such as Figure 2 and Figure 6 The guide constraint 213 is installed on the first long side 11 and the second short side 121 by connecting bolts.

[0032] On the basis of the above-mentioned embodiments, in one embodiment, the first long side 11 and the second short side 121 are respectively provided with an adjusting long hole extending along the length direction of the first long side 11, and the through direction of the adjusting long hole is consistent with the extension direction of the rotation shaft of the down handle 23, such as Figure 5 and Figure 6 The both ends of the guide constraint 213 can be installed on the adjusting long hole by bolts. The guide constraint 213 can be installed at different height positions of the adjusting long hole by adjusting the tightness of the bolts, so as to change the stroke of the up and down displacement of the push rod 21.

[0033] In a preferred embodiment, such as Figure 1 and Figure 2 The first long side 11 and the second short side 121 are provided with an installation long hole 14, the installation long hole 14 penetrates the first long side 11 and the second short side 121 in the extension direction of the first short side 12, the installation long hole 14 extends in the length direction of the first long side 11, a plurality of limiting holes 15 with different heights are arranged on the hole wall of the installation long hole 14, and the both ends of the guide constraint 213 extend into the installation long hole 14. The guide constraint 213 can be installed at different heights by locking screws installed in different limiting holes 15, so as to change the stroke of the up and down displacement of the push rod 21.

[0034] On the basis of the above-mentioned embodiments, in one embodiment, the push rod 21 is a solid cylinder, and the end of the push rod 21 cooperating with the cam 22 is a plane. In a preferred embodiment, in order to make the push rod 21 cooperate more closely with the cam 22, such as Figure 3 and Figure 4The end of the push rod 21, which cooperates with the cam 22, has a cooperating groove 214, and the cam 22 is disc-shaped and the edge is in the cooperating groove 214.

[0035] On the basis of the above-mentioned embodiments, in one embodiment, the constraint sleeve 13 is directly sleeved on the outer sheath of the adjusting rod. In a preferred embodiment, in order to make the push rod 21 work more stably with the adjusting rod during operation, a jacking screw 131 for jacking the outer sheath of the adjusting rod is screwed on the wall of the constraint sleeve 13.

[0036] In the above-mentioned embodiments, the base frame 1 only relies on the constraint sleeve 13 to be connected with the oil injection pump, without other fulcrums. In a preferred embodiment, in order to make the device work more stably, a balance leg 122 is arranged on the first short side 12 at a side of the constraint sleeve 13 which is at the free end of the pressing handle 23, and the end of the balance leg 122 is flush with the end of the constraint sleeve 13, which can cooperate to support the pressing device during work.

[0037] In other embodiments, the end of the balance leg 122 can not be flush with the end of the constraint sleeve 13, and after the constraint sleeve 13 is sleeved on the outer sheath of the adjusting rod and the jacking screw 131 is tightened, the balance leg 122 can just contact the upper end surface of the pump to support the device. In order to make the operator work more easily, the first long side 11 and the end of the pressing handle 23 are respectively sleeved with rubber sleeves 4.

[0038] The reciprocating manual pump auxiliary pressing device of the utility model in use, need first constraint sleeve is sleeved on the outer sheath of the adjusting rod of oil injection pump, tighten the jacking screw to make the constraint sleeve clamping outer sheath, again through the adjusting guide constraint piece is in the position of the limiting hole to set the required pressure stroke. Hold the pressing handle and handrail respectively with hand, to the pressing handle downward force, the pressing handle drives the push rod downward displacement and acts on the adjusting rod of oil injection pump, drives the adjusting rod to move downward, through hand holds the pressing handle and releases, the adjusting rod runs upward, the push rod resets under the elastic force of return spring, forms one-way motion, completes a pump oil, repeats the operation, completes the oil injection pump of the pump required, reaches the start machine condition.

[0039] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the utility model, and the patent protection scope of the utility model is subject to the claims, and equivalent structural changes made by applying the contents of the specification and drawings of the utility model should be included in the protection scope of the utility model.

Claims

1. A reciprocating manual pump auxiliary pressing device, characterized in that, The system includes a base frame, which is an L-shaped base frame with a first long side and a first short side that are perpendicular to each other. The first long side forms a handrail. A constraint sleeve for fitting onto the outer sheath of the adjusting rod is installed on the first short side in a direction parallel to the first long side. A pressing handle is hinged to the base frame. A push rod coaxial with the constraint sleeve is also movably installed on the base frame. The pressing handle cooperates with the push rod and drives the push rod to move and push the adjusting rod when pressed down.

2. The reciprocating manual pump auxiliary pressing device according to claim 1, characterized in that, The pressing handle is equipped with a cam, and the cam and the push rod form a cam push rod mechanism.

3. The reciprocating manual pump auxiliary pressing device according to claim 2, characterized in that, The push rod engages with the outer contour surface of the cam, and the push rod is equipped with a return spring.

4. The reciprocating manual pump auxiliary pressing device according to claim 3, characterized in that, A guide constraint is connected to the first long side on the side of the first short side away from the constraint sleeve. The push rod guide is inserted into the guide constraint, and one end of the push rod on one side of the guide constraint engages with the cam push. The other end of the push rod on the other side of the guide constraint extends into the constraint sleeve. A spring seat is provided on the push rod on the side of the guide constraint near the first short side. The spring seat blocks the guide constraint. A reset spring is fitted on the push rod and is located between the spring seat and the first short side.

5. The reciprocating manual pump auxiliary pressing device according to claim 4, characterized in that, The position of the guide constraint is adjustable along the length of the first long side.

6. The reciprocating manual pump auxiliary pressing device according to claim 5, characterized in that, A second short side is provided at the end of the first short side that is away from the first long side. The first long side and the second short side are provided with elongated holes. The two ends of the guide constraint are installed on the elongated holes by connecting bolts. The elongated holes are provided with multiple connecting holes arranged in the vertical direction.

7. The reciprocating manual pump auxiliary pressing device according to any one of claims 1-6, characterized in that, The end of the push rod that mates with the cam has a mating groove. The cam is disc-shaped, and its edge is located within the mating groove.

8. The reciprocating manual pump auxiliary pressing device according to any one of claims 1-6, characterized in that, The sleeve has set screws screwed onto its wall to tighten the outer sheath of the adjusting rod.

9. The reciprocating manual pump auxiliary pressing device according to any one of claims 1-6, characterized in that, On the first short side, a balancing support leg is provided on the side of the constraint sleeve located at the free end of the pressing handle.

10. The reciprocating manual pump auxiliary pressing device according to claim 9, characterized in that, The ends of the balancing outriggers are flush with the ends of the constraint sleeves.

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