Lubricating grease adding device of grease injection gun

Abstract

The utility model relates to the technical field of lubricating grease adding, in particular to a lubricating grease adding device of a grease injection gun. Filling is convenient, lubricating grease in the strip-shaped plastic packaging bag can be thoroughly extruded out, waste of the lubricating grease is reduced, and it is guaranteed that the site construction environment is clean; comprising two U-shaped frames, a hinged shaft and compression rollers rotationally installed on the two U-shaped frames, the two U-shaped frames are rotationally connected through the hinged shaft, the central axes of the two compression rollers are parallel to the central axis of the hinged shaft, and the distances from the central axes of the two compression rollers to the central axis of the hinged shaft are equal; rotary driving parts are fixedly mounted at the end parts of one group of pressing rollers; extrusion teeth and tooth grooves matched with the extrusion teeth are arranged on the two compression rollers, and the extrusion teeth on one group of compression rollers are meshed with the tooth grooves on the other compression roller; the extrusion teeth and the tooth grooves are parallel to the central axis of the compression roller; the device further comprises a tension spring, the two ends of the tension spring are hinged to the two U-shaped frames respectively, and the two U-shaped frames are elastically connected through the tension spring.

Description

Technical Field

[0001] This utility model relates to the technical field of lubricating grease addition, and in particular to a grease injection gun lubricating grease addition device. Background Technology

[0002] Currently, valve grease injection and maintenance operations mainly use manual grease guns and foot-operated grease guns. Both manual and foot-operated grease guns use grease in strip bags (i.e., grease packaged in strip plastic bags). Since the outer diameter of the grease in the strip bag is similar to the inner diameter of the grease gun barrel, the process of filling the grease is difficult. Each time it is filled, it is impossible to squeeze out all the grease in the strip plastic bag, resulting in waste. Moreover, the grease is very easy to adhere to gloves, tools, and skin and is difficult to clean, resulting in a poor working environment. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a grease filling device that is convenient to fill, can completely squeeze out the grease from the strip-shaped plastic packaging bag, reduces grease waste, and ensures a clean on-site construction environment.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grease injection gun lubricating grease filling device, comprising two U-shaped frames, a hinge shaft, and pressure rollers rotatably mounted on the two U-shaped frames. The two U-shaped frames are rotatably connected by the hinge shaft, and the central axes of the two pressure rollers are parallel to the central axis of the hinge shaft. The distances from the central axes of the two pressure rollers to the central axis of the hinge shaft are equal.

[0007] Preferably, a rotary drive component is fixedly installed at the end of one set of pressure rollers; further, the rotary drive component is preferably a wing nut, but other equivalent drive components that can drive the pressure rollers to rotate, such as a turntable or a throttle, can also be used.

[0008] Preferably, both pressure rollers are provided with extrusion teeth and tooth grooves that engage with the extrusion teeth, wherein the extrusion teeth on one set of pressure rollers engage with the tooth grooves on the other pressure roller; the extrusion teeth and tooth grooves are both arranged parallel to the central axis of the pressure rollers.

[0009] Preferably, it also includes a tension spring, the two ends of which are respectively hinged to the two U-shaped frames, and the two U-shaped frames are elastically connected by the tension spring; further, the tension spring is hinged to the U-shaped frame, and the hinge connection point of the tension spring and the U-shaped frame is far away from the hinge connection point of the two U-shaped frames.

[0010] Preferably, it further includes a positioning sleeve, the positioning sleeve having two ear seats, and a connector is hingedly mounted on the ear seats, the ear seats being hinged to the U-shaped frame via the connector; furthermore, one end of the connector is hinged to the ear seat, and the other end of the connector is hinged to the hinged connection of the two U-shaped frames.

[0011] Preferably, the positioning sleeve is screwed with a locking bolt.

[0012] Preferably, the locking bolt is a wing bolt.

[0013] Preferably, the extrusion teeth are made of flexible rubber.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a grease filling device for a grease gun, which has the following advantages: one end of a strip-shaped plastic bag containing grease is placed between two pressure rollers, and the other end of the strip-shaped plastic bag is inserted into the oil inlet of the equipment to be filled. The two U-shaped frames approach each other until the outer circumference of the two pressure rollers is in close contact with the strip-shaped plastic bag. When one pressure roller is rotated, the other pressure roller rotates synchronously. The strip-shaped plastic bag is squeezed and deformed and moves upward, while the grease in the strip-shaped plastic bag is squeezed into the oil inlet of the equipment to be filled. The filling is convenient and can completely squeeze out the grease in the strip-shaped plastic bag, reducing grease waste. At the same time, it effectively reduces the direct contact between the operator and the grease, ensuring a clean on-site construction environment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a top view schematic diagram of the structure of this utility model;

[0018] Figure 3 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 This is the utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0020] Figure 5 This is a schematic diagram of an embodiment of the extruded strip bagged lubricating grease of this utility model;

[0021] The following are labels in the attached diagram: 1. U-shaped frame; 2. Hinge shaft; 3. Pressure roller; 4. Rotary drive component; 5. Extrusion tooth; 6. Tooth groove; 7. Tension spring; 8. Positioning sleeve; 9. Ear seat; 10. Connecting component; 11. Locking bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As described in the background section, the process of filling grease is difficult. Each filling cannot completely squeeze out the grease from the strip plastic bag, resulting in waste. Moreover, grease is very easy to adhere to gloves, tools, and skin and is difficult to clean, leading to a poor working environment.

[0024] To solve this technical problem, this utility model provides a grease injection gun grease filling device, which is used to add grease from a grease bag into the equipment.

[0025] Please see Figure 1-5 The present invention relates to a grease injection gun lubricating device, comprising two U-shaped frames 1, a hinge shaft 2, and pressure rollers 3 rotatably mounted on the two U-shaped frames 1. The two U-shaped frames 1 are rotatably connected by the hinge shaft 2, and the central axes of the two pressure rollers 3 are parallel to the central axis of the hinge shaft 2. The distances from the central axes of the two pressure rollers 3 to the central axis of the hinge shaft 2 are equal.

[0026] The grease filling device provided by this utility model is convenient to fill and can completely squeeze out the grease from the strip plastic packaging bag, reducing grease waste. At the same time, it effectively reduces the direct contact between operators and grease, ensuring a clean on-site construction environment.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1

[0030] For details, please refer to Figure 1 It includes two U-shaped frames 1, a hinge shaft 2, and pressure rollers 3 rotatably mounted on the two U-shaped frames 1. The two U-shaped frames 1 are rotatably connected by the hinge shaft 2. The central axes of the two pressure rollers 3 are parallel to the central axis of the hinge shaft 2, and the distances from the central axes of the two pressure rollers 3 to the central axis of the hinge shaft 2 are equal.

[0031] One set of pressure rollers 3 has a rotary drive component 4 fixedly installed at its end; furthermore, the rotary drive component 4 is preferably a wing nut, but other equivalent drive components that can drive the pressure rollers 3 to rotate, such as a turntable or a throttle, can also be used.

[0032] For details, please refer to Figure 4 Both pressure rollers 3 are provided with extrusion teeth 5 and tooth grooves 6 that engage with the extrusion teeth 5. The extrusion teeth 5 on one set of pressure rollers 3 engage with the tooth grooves 6 on the other pressure roller 3. The extrusion teeth 5 and tooth grooves 6 are both arranged parallel to the central axis of the pressure rollers 3.

[0033] For details, please refer to Figure 1-3 It also includes a tension spring 7, the two ends of which are respectively hinged to the two U-shaped frames 1, and the two U-shaped frames 1 are elastically connected by the tension spring 7; furthermore, the tension spring 7 is hinged to the U-shaped frame 1, and the hinge connection between the tension spring 7 and the U-shaped frame 1 is far away from the hinge connection point of the two U-shaped frames 1.

[0034] Specifically, the extrusion tooth 5 is made of flexible rubber.

[0035] The grease filling device provided in this embodiment features a rotary drive 4 that allows for easier rotation of one set of pressure rollers 3, enhancing ease of use for operators. The extrusion teeth 5 and grooves 6 improve the contact tightness between the two pressure rollers 3, thereby enhancing the transmission effect. Under the action of the extrusion teeth 5 and grooves 6, the two pressure rollers 3 rotate synchronously in opposite directions, increasing the contact area and ensuring that the grease inside the strip-shaped plastic bag is completely squeezed out. This effectively prevents relative slippage between the strip-shaped plastic bag and the pressure rollers 3, ensuring smooth grease filling. The tension spring 7 ensures that the two pressure rollers 3 remain in close contact without external force, preventing the strip-shaped plastic bag from detaching from the two pressure rollers 3. Operators do not need to constantly apply force to the two U-shaped frames 1 to bring them closer together, further improving ease of use. The extrusion teeth 5, made of flexible rubber, effectively reduce the risk of damage to the strip-shaped plastic bag.

[0036] Example 2

[0037] The grease filling device for the grease gun provided in Example 1 has been further optimized; please refer to [link / reference]. Figure 3 Specifically, it also includes a positioning sleeve 8, which has two ear seats 9. A connector 10 is hinged to the ear seats 9, and the ear seats 9 are hinged to the U-shaped frame 1 through the connector 10. Furthermore, one end of the connector 10 is hinged to the ear seat 9, and the other end of the connector 10 is hinged to the hinged connection of the two U-shaped frames 1.

[0038] Specifically, the positioning sleeve 8 is screwed with a locking bolt 11.

[0039] Specifically, locking bolt 11 is a wing bolt.

[0040] The positioning sleeve 8 is fitted onto the oil injection pipe of the equipment to be oiled. The inner diameter of the positioning sleeve 8 is 0.5-1cm larger than the outer diameter of the oil injection pipe on the equipment. The two U-shaped frames 1 are straightened so that they are basically vertical. This effectively prevents the end of the strip plastic packaging bag that has been inserted into the oil injection pipe from moving out of the oil injection pipe. It also transfers the weight of the entire device and the grease bag to the oil injection pipe, allowing the operator to operate more effortlessly. With the help of the connecting piece 10, the two U-shaped frames 1 can rotate left and right to adjust for the addition of a new set of grease bags. Multiple grease bags can be continuously added without disassembling the device, improving the efficiency of grease addition. The locking bolt 11 locks the positioning sleeve 8 to the outer wall of the oil injection pipe, preventing the device from shifting during the oil injection operation and ensuring the smooth progress of the oil injection operation.

[0041] In use, one end of a strip-shaped plastic bag containing grease is placed between two pressure rollers 3, and the other end of the strip-shaped plastic bag is inserted into the oil inlet of the equipment to be oiled. The positioning sleeve 8 is fitted onto the outer wall of the oil inlet pipe and locked in place by the locking bolt 11. The two U-shaped frames 1 approach each other under the action of the tension spring 7 until the outer circumference of both pressure rollers 3 is in close contact with the strip-shaped plastic bag. The rotating drive 4 is rotated, which drives one of the pressure rollers 3 to rotate. After being driven by the extrusion teeth 5 and the tooth groove 6, the other pressure roller 3 rotates synchronously. The strip-shaped plastic bag is squeezed and deformed and gradually moves upward, while the grease inside the strip-shaped plastic bag is squeezed into the oil inlet of the equipment to be oiled. This is how grease is added without the need for a manual grease gun or a foot-operated grease gun.

[0042] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A grease filling device for a grease injection gun, characterized in that; It includes two U-shaped frames (1), a hinge shaft (2), and pressure rollers (3) rotatably mounted on the two U-shaped frames (1). The two U-shaped frames (1) are rotatably connected by the hinge shaft (2). The central axes of the two pressure rollers (3) are parallel to the central axis of the hinge shaft (2), and the distances from the central axes of the two pressure rollers (3) to the central axis of the hinge shaft (2) are equal.

2. The grease filling device for a grease gun according to claim 1, characterized in that, One of the pressure rollers (3) has a rotary drive component (4) fixedly installed at its end.

3. The grease filling device for a grease gun according to claim 2, characterized in that, Both pressure rollers (3) are provided with extrusion teeth (5) and tooth grooves (6) that engage with the extrusion teeth (5). The extrusion teeth (5) on one set of pressure rollers (3) mesh with the tooth grooves (6) on the other pressure roller (3). The extrusion teeth (5) and tooth grooves (6) are both arranged parallel to the central axis of the pressure rollers (3).

4. The grease filling device for a grease gun according to claim 1 or 3, characterized in that, It also includes a tension spring (7), the two ends of which are respectively hinged to the two U-shaped frames (1), and the two U-shaped frames (1) are elastically connected by the tension spring (7).

5. The grease filling device for a grease gun according to claim 1, characterized in that, It also includes a positioning sleeve (8), on which two ear seats (9) are provided, and a connector (10) is hinged on the ear seats (9). The ear seats (9) and the U-shaped frame (1) are hinged together by the connector (10).

6. The grease filling device for a grease gun according to claim 5, characterized in that, The positioning sleeve (8) is screwed with a locking bolt (11).

7. The grease filling device for a grease gun according to claim 6, characterized in that, The locking bolt (11) is a wing bolt.

8. The grease filling device for a grease gun according to claim 3, characterized in that, The extrusion teeth (5) are made of flexible rubber.

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