Auxiliary grease injection device for valve

By designing a quick-disassembly and replacement structure for the injection head and a device for precise control of the injection volume, the compatibility and quantitative issues of traditional grease injection devices have been solved, improving the practicality and efficiency of valve grease injection.

CN224108002UActive Publication Date: 2026-04-10SHANDONG NATURAL GAS PIPELINE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing valve-assisted grease injection devices are difficult to adapt to valves with different grease injection hole sizes, and it is also difficult to achieve precise quantitative grease injection.

Method used

An injection head mounting structure was designed, comprising a fixed base, a rectangular groove, a mounting plate, a sliding plate, a locking rod, a connecting rod, and a spring. The movement of the piston block is controlled by a push rod and a pressing plate, enabling quick disassembly and replacement of the injection head. The continuous and accurate grease injection is ensured by an observation window and an injection hopper.

Benefits of technology

It enables quick replacement of injection heads to adapt to different valves, ensuring the versatility and precise quantification of grease injection, improving the grease injection effect and quality, and reducing labor intensity and safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of grease injection devices, and discloses a valve auxiliary grease injection device which comprises an injection pipe, one side of the injection pipe is fixedly connected with a fixing seat, one side of the fixing seat is provided with a rectangular groove, the interior of the rectangular groove is slidably connected with an installation plate, one side of the installation plate is fixedly connected with an installation seat, and the installation seat is fixedly connected with a valve. An injection head is fixedly connected to one side of the mounting base, and a cavity is formed in the fixing base. According to the auxiliary grease injection device for the valve, through an injection head mounting structure composed of the fixing base, the rectangular groove, the mounting plate, the sliding plate, the clamping rod, the connecting rod and the spring, the injection head can be quickly and conveniently disassembled and replaced. Therefore, the valve auxiliary grease injection device can be easily matched with valves with grease injection holes of different sizes, the universality and practicability of the device are greatly improved, and the problem that a traditional integrated grease injection device is difficult to adjust according to changes of the valve grease injection holes is effectively solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to grease injection device technical field especially relates to a valve auxiliary grease injection device. BACKGROUND

[0002] With the continuous improvement of industrial automation degree, the performance and automation level of valve grease injection device are put forward higher requirement. Therefore, research and development a kind of efficient, reliable, automation degree high valve auxiliary grease injection device has important practical significance. The emergence of valve auxiliary grease injection device aims at solving the deficiency of traditional grease injection mode, improves grease injection efficiency and quality, reduces labour intensity and safety risk, ensures the normal operation and long-term reliable use of valve.

[0003] However, the existing valve auxiliary grease injection device has the following shortcomings:

[0004] (1) the common grease injection device is mostly integral, is difficult to disassemble and replace injection head, leads to the device difficult to grease injection according to the valve of different grease injection hole size, reduces the practicability of device;

[0005] (2) traditional mostly uses grease injection gun to grease injection, is difficult to accurately realize quantitative grease injection, possibly leads to too much or too little grease injection, lower grease injection effect.

[0006] Therefore, the utility model provides a valve auxiliary grease injection device. UTILITY MODEL CONTENT

[0007] (I) the technical problem solved

[0008] The utility model solves the technical problem to provide a kind of valve auxiliary grease injection device with higher practicability, and can be through simple operation, structure is relatively simple, solve the problem that the valve of different grease injection hole size is difficult to grease injection and is difficult to accurately realize quantitative grease injection in the background technique described above.

[0009] (II) technical scheme

[0010] In order to achieve the above object, the utility model discloses the following technical scheme to realize: a valve auxiliary grease injection device, including injection pipe, one side of injection pipe is fixedly connected with fixed seat, one side of fixed seat is opened with rectangular groove, the inside sliding connection of rectangular groove has mounting plate, one side of mounting plate is fixedly connected with mounting seat, one side of mounting seat is fixedly connected with injection head, the inside of fixed seat is opened with cavity, the inner side wall sliding connection of cavity has sliding plate, one side of sliding plate is fixedly connected with clamping rod, one end of clamping rod extends to the inside of rectangular groove, the other side of sliding plate is fixedly connected with connecting rod, one end of connecting rod extends to the outside of fixed seat, the inner side wall between sliding plate and cavity is connected with spring in common, the other side swing of injection pipe is inserted with push rod, one end of push rod is fixedly connected with piston block, the other end of push rod is fixedly connected with pressing plate.

[0011] Optionally, the surface of the injection pipe is provided with an observation window, the observation window is arranged in a rectangular shape, which facilitates the operator to observe the remaining amount of lubricating grease or sealing grease in the injection pipe during the grease injection process, so as to supplement the oil in time, avoid interruption due to insufficient oil during the grease injection process, and improve the continuity and accuracy of the grease injection.

[0012] Optionally, one end of the connecting rod is fixedly connected with a connecting block, the connecting block is arranged in a circular shape, which facilitates the operator to pull the connecting rod.

[0013] Optionally, the surface of the injection pipe is fixedly connected with two fixed ears, the two fixed ears are symmetrically arranged, and can be used to fix the injection pipe at a specific position or equipment, increase the stability of the device during use, prevent the injection pipe from shaking or shifting during the grease injection process, and ensure the accuracy of the grease injection operation.

[0014] Optionally, a liquid injection cup is fixedly penetrated in one side of the injection pipe, and a sealing cover is arranged at one end of the liquid injection cup, so that the oil can be more conveniently and quickly injected into the injection pipe, and the larger opening design is beneficial to the pouring of the oil, thereby improving the efficiency of adding the oil.

[0015] Optionally, the surface of the sealing cover is provided with an anti-skid groove, and the anti-skid grooves are arranged in a circular shape, so that the operator can more easily exert force when unscrewing or tightening the sealing cover, and the sealing cover is not easy to slip, the operation of the sealing cover is facilitated, and the convenience of use is improved.

[0016] (Three) beneficial effects

[0017] The utility model provides a kind of valve auxiliary grease injection device, with following beneficial effects:

[0018] 1、The valve auxiliary lubricating device, through the injection head mounting structure composed of the fixed seat, the rectangular groove, the mounting plate, the sliding plate, the clamping rod, the connecting rod and the spring, can quickly and conveniently disassemble and replace the injection head. This makes the valve auxiliary lubricating device can easily adapt to valves of different lubricating hole sizes, greatly improves the versatility and practicality of the device, effectively solves the problem that the traditional integral type lubricating device is difficult to adjust according to the change of the valve lubricating hole.

[0019] 2、The valve auxiliary lubricating device, the operator controls the moving distance of the push rod by pushing the pressing plate, and then accurately controls the amount of lubricating grease or sealing grease pushed out by the piston block. Compared with the traditional use of the lubricating gun, the device can realize quantitative lubrication according to the actual demand of the valve, avoid the situation that too much lubricating causes grease waste, or too little lubricating causes poor protection effect, and significantly improve the lubricating effect and quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a whole structure schematic view of the utility model;

[0021] Fig. 2 It is a whole side view structure schematic view of the utility model;

[0022] Fig. 3 It is a clamping block structure schematic view of the utility model;

[0023] Fig. 4 It is a spring structure schematic view of the utility model.

[0024] In the drawing: 1, injection pipe; 2, fixed seat; 3, mounting plate; 4, mounting seat; 5, sliding plate; 6, clamping rod; 7, connecting rod; 8, spring; 9, injection head; 10, pressing plate; 11, connecting block; 12, observation window; 13, fixed lug; 14, push rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figs. 1 to 4The utility model provides a technical scheme: a valve auxiliary grease injection device, including injection pipe 1, one side of injection pipe 1 is fixedly connected with fixed seat 2, the one side of fixed seat 2 is opened with rectangular groove, the inside of rectangular groove is slidably connected with mounting plate 3, the one side of mounting plate 3 is fixedly connected with mounting seat 4, the one side of mounting seat 4 is fixedly connected with injection head 9, the inside of fixed seat 2 is opened with cavity, the inside wall of cavity is slidably connected with sliding plate 5, the one side of sliding plate 5 is fixedly connected with clamping rod 6, and one end of clamping rod 6 extends to the inside of rectangular groove, the other side of sliding plate 5 is fixedly connected with connecting rod 7, and one end of connecting rod 7 extends to the outside of fixed seat 2, and the inside wall of cavity is connected with spring 8 between sliding plate 5, and spring 8 is connected between sliding plate 5 and the inside wall of cavity, plays the role of reset.When pulling connecting rod 7 makes sliding plate 5 compress spring 8, spring 8 stores elastic potential energy, after releasing connecting rod 7, spring 8 releases elastic potential energy, and pushes sliding plate 5 reset, makes clamping rod 6 extend and clamps mounting plate 3, guarantees the stability after the installation of injection head 9, the other side of injection pipe 1 is movably inserted with push rod 14, one end of push rod 14 is fixedly connected with piston block, and the other end of push rod 14 is fixedly connected with pressing plate 10, and with the other end of push rod 14 fixedly connected, it is the force component of the operator to carry out grease injection operation.The operator controls the moving distance of push rod 14 and piston block by pushing pressing plate 10, thereby accurately controls the grease injection amount, realizes quantitative grease injection, improves the grease injection effect and quality, and the elastic coefficient of spring 8 is k (unit:N / m), the spring is at natural length under initial state, when needing to replace injection head 9, pull connecting block 11 outside fixed seat 2, connecting block 11 drives connecting rod 7, makes sliding plate 5 slide in the cavity in fixed seat 2, compresses spring 8, and the compression amount of spring 8 is x (unit:m), according to hooke's law F=kx, the elastic force of spring 8 is F (unit:N) at this time;

[0027] The surface of injection pipe 1 is provided with an observation window 12, which is rectangularly arranged, facilitating the operator to observe the remaining amount of lubricating grease or sealing grease in the injection pipe 1 during the grease injection process, so as to supplement the oil in time, avoid interrupting the grease injection process due to insufficient oil, and improve the continuity and accuracy of the grease injection process;

[0028] One end of the connecting rod 7 is fixedly connected with a connecting block 11, which is circularly arranged, facilitating the operator to pull the connecting rod 7;

[0029] The surface of the injection pipe 1 is fixedly connected with two fixed ears 13, which are symmetrically arranged, and can be used to fix the injection pipe 1 at a specific position or equipment, increase the stability of the device during use, prevent the injection pipe 1 from shaking or shifting during the grease injection process, and ensure the accuracy of the grease injection operation;

[0030] One side of the injection tube 1 is fixed with a liquid injection bucket, and one end of the liquid injection bucket is provided with a sealing cover, so that the oil can be injected into the injection tube 1 more conveniently and quickly, and the larger opening is beneficial to the pouring of the oil, and the efficiency of adding the oil is improved.

[0031] The surface of the sealing cover is provided with anti-skid grooves arranged in a circular shape, so that the operator can exert force more easily when unscrewing or tightening the sealing cover, the sealing cover is not easy to slip, the operation of the sealing cover is facilitated, and the convenience of use is improved.

[0032] In the utility model, the working steps of the device are as follows:

[0033] The first step is that when the injection head 9 needs to be replaced to adapt to the valve with different grease hole sizes, the connecting block 11 outside the fixed seat 2 is pulled, the connecting block 11 drives the connecting rod 7, and then the sliding plate 5 slides in the cavity inside the fixed seat 2, the compression spring 8 is compressed, at this time, the clamping rod 6 is retracted from the rectangular groove, the mounting plate 3 together with the injection head 9 can be taken out from the rectangular groove, the appropriate injection head 9 is replaced, and then the connecting block 11 is loosened, under the elastic force of the spring 8, the sliding plate 5 drives the clamping rod 6 to reinsert into the rectangular groove, and the mounting plate 3 and the new injection head 9 are fixed;

[0034] The second step is that the push rod 14 moves in the injection tube 1 by pushing the pressing plate 10, and the piston block at the front end of the push rod 14 extrudes the lubricating grease or sealing grease in the injection tube 1. The operator can accurately control the distance pushed by the pressing plate 10 according to the actual demand, and then accurately control the amount of oil pushed out by the piston block, so as to realize accurate quantitative grease injection. It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the design principle technology. Under the premise that the above-mentioned utility model principle is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller. The control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0035] The standard parts used can be purchased from the market, and can be customized according to the description and drawings. The specific connection mode of each part adopts the conventional screw, rivet and welding means in the prior art. The mechanical parts and equipment adopt conventional types in the prior art, and the components known by the person skilled in the art are known by the person skilled in the art through technical manual or conventional experimental method.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve-assisted grease injection device comprising an injection tube (1), characterized in that: The side of the injection pipe (1) is fixedly connected with a fixed seat (2), one side of the fixed seat (2) is provided with a rectangular slot, the inside of the rectangular slot is slidably connected with a mounting plate (3), one side of the mounting plate (3) is fixedly connected with a mounting seat (4), one side of the mounting seat (4) is fixedly connected with an injection head (9), the inside of the fixed seat (2) is provided with a cavity, the inner side wall of the cavity is slidably connected with a sliding plate (5), one side of the sliding plate (5) is fixedly connected with a clamping rod (6), one end of the clamping rod (6) extends to the inside of the rectangular slot, the other side of the sliding plate (5) is fixedly connected with a connecting rod (7), one end of the connecting rod (7) extends to the outside of the fixed seat (2), the sliding plate (5) and the inner side wall of the cavity are connected with a spring (8) together, the other side of the injection pipe (1) is movably inserted with a push rod (14), one end of the push rod (14) is fixedly connected with a piston block, the other end of the push rod (14) is fixedly connected with a pressing plate (10).

2. The valve lubrication assist device of claim 1, wherein: The surface of the injection pipe (1) is provided with an observation window (12), the observation window (12) is arranged in a rectangular shape.

3. The valve lubrication assist device of claim 1, wherein: One end of the connecting rod (7) is fixedly connected with a connecting block (11), the connecting block (11) is arranged in a circular shape.

4. The valve lubrication assist device of claim 1, wherein: The surface of the injection pipe (1) is fixedly connected with two fixed ears (13), the two fixed ears (13) are symmetrically arranged.

5. The valve lubrication assist device of claim 1, wherein: One side of the injection pipe (1) is fixedly penetrated with a liquid injection cup, one end of the liquid injection cup is provided with a sealing cover.

6. A valve lubrication assist device as defined in claim 5, wherein: The surface of the sealing cover is provided with anti-skid grooves, the anti-skid grooves are arranged in a circular shape.