Pistol type gear transmission grease gun
By using a gear transmission mechanism in a pistol-type grease gun, the problems of operational labor and low refueling pressure caused by the large movement direction angle of the handle and plunger in the prior art are solved, and efficient and stable refueling operation and one-handed operation are achieved.
Patent Information
- Application Number
- CN202421616876.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing pistol-type butter guns have a large angle of movement direction between the movable handle and the plunger, resulting in uneven force transmission, laborious operation, low refueling pressure, slow refueling speed, and difficult to achieve one-hand operation.
The gear transmission mechanism is adopted to drive horizontal movement of the plunger through the meshing of the sector gear and the rack, reducing the angle between the moving handle and the plunger, and improving the uniformity and stability of force transmission.
It realizes stability and reliability during refueling, improves refueling pressure and speed, saves more effort, and can operate with one hand, suitable for refueling and volleying operations at high altitude equipment.
Smart Images
Figure CN222651038U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refueling tools, in particular to a pistol-type gear-driven grease gun which can be operated with one hand. Background Art
[0002] The pistol-type grease gun is a manual refueling tool for filling grease into mechanical equipment. Its structure generally consists of a gun head body, an oil storage cylinder, a plunger structure, a four-bar transmission mechanism, a movable handle and a fixed handle. When working, the user needs to hold the movable handle and the fixed handle with one hand at the same time. When the movable handle is pressed down, the movable handle drives the plunger to move horizontally through the four-bar transmission mechanism, thereby realizing the refueling function of the grease gun. However, the existing pistol-type grease gun has the following problems: since there is a large angle between the movement direction of the movable handle and the movement direction of the plunger, the force acting on the plunger is not stable enough, it is more laborious to work, the refueling pressure is low, and the refueling speed is slow. For this reason, many manufacturers and knowledgeable people have carried out development and research, but so far, there has not been a product that can be operated with one hand and has a high refueling pressure. Summary of the invention
[0003] In order to overcome the above problems existing in the prior art, the purpose of the utility model is to provide a pistol-type gear transmission grease gun which has a simple and reasonable structure, stable and reliable working pressure, high refueling pressure and fast speed, and can be operated with one hand.
[0004] The utility model solves the technical problem by adopting the technical scheme, which comprises an oil storage cylinder, a gun head main body fixed on the oil storage cylinder and a fixed handle arranged on the gun head main body, the gun head main body is provided with a horizontally arranged plunger hole, the plunger hole is provided with an oil inlet hole connected with the oil storage cylinder, an oil outlet nozzle is fixed on one side of the plunger hole, and a plunger which can reciprocate on the plunger hole is provided on the other side, a rack is provided at the tail of the plunger, an arc groove is provided on the gun head main body, and a fan-shaped gear meshing with the rack and a movable handle are hinged through a hinge shaft, the fan-shaped gear is connected to the movable handle as a whole through a guide pin, and the guide pin can be slidably arranged on the arc groove; when working, the fan-shaped gear rotates around the hinge shaft driven by the movable handle and meshes with the rack to drive the plunger to move horizontally.
[0005] According to a further solution of the utility model, a return spring is correspondingly provided between the fixed handle and the movable handle.
[0006] According to a further solution of the utility model, the gun head body is provided with an exhaust hole communicated with the plunger hole, and an air release valve is installed on the exhaust hole.
[0007] According to a further solution of the utility model, the fixed handle is provided with a buckle ring for locking the movable handle.
[0008] After adopting the above structure, compared with the prior art, the following advantages or effects are achieved: First, the movable handle drives the plunger to move horizontally through the meshing of the sector gear and the rack during operation, and the angle between the moving direction of the movable handle and the moving direction of the plunger is small, the force transmission loss is small, the force is evenly distributed, and the force is large. Compared with the existing pistol-type refueling gun, it is relatively labor-saving when refueling, and the refueling pressure is high, the speed is fast, and the efficiency is high. Second, because the sector gear is slidably arranged on the arc groove through the guide pin, the sector gear has a small swing amplitude and good stability during operation, which can greatly improve the stability and reliability of refueling. Third, it is easy and convenient to operate with one hand, especially when refueling high-altitude equipment or working in the air, which can effectively solve the safety hazards existing during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the matching structure of the utility model when in use.
[0010] Figure 2 It is a schematic diagram of the matching structure of the utility model in the storage state.
[0011] Among them, 1 is an oil storage cylinder, 2 is a gun head body, 3 is an oil inlet hole, 4 is a plunger hole, 5 is an oil outlet nozzle, 6 is a plunger, 7 is an exhaust hole, 8 is an air release valve, 9 is a hinge shaft, 10 is an arc groove, 11 is a guide pin, 12 is a sector gear, 13 is a rack, 14 is a return spring, 15 is a fixed handle, 16 is a movable handle, and 17 is a buckle. DETAILED DESCRIPTION
[0012] Figure 1 and Figure 2 As shown in the figure, a specific implementation scheme of a pistol-type gear-driven grease gun of the utility model is shown, which comprises an oil storage cylinder 1, a gun head body 2 fixed on the oil storage cylinder 1, and a fixed handle 15 arranged on the gun head body 2, the gun head body 2 is provided with a horizontally arranged plunger hole 4, the plunger hole 4 is provided with an oil inlet hole 3 connected with the oil storage cylinder 1, an oil outlet nozzle 5 is fixed on one side of the plunger hole 4, and a plunger 6 that can reciprocate on the plunger hole 4 is provided on the other side, and a rack 13 is provided at the tail of the plunger 6, an arc groove 10 is provided on the gun head body 2, and is hinged with a hinge shaft 9. The sector gear 12 and the movable handle 16 meshing with the rack 13, the sector gear 12 is connected to the movable handle 16 as a whole through the guide pin 11, the guide pin 11 is slidably set on the arc groove 10, the sector gear 12 and the rack 13 are meshed to transmit force evenly, stably and reliably, and the guide pin 11 can eliminate the matching clearance between the sector gear 12 and the gun head body 2, thereby ensuring the stability and reliability of the refueling work; when working, the sector gear 12 rotates around the hinge shaft 9 driven by the movable handle 16 and meshes with the rack 13 to drive the plunger 6 to move horizontally to realize the refueling function.
[0013] For the convenience of operation, a return spring 14 is provided between the fixed handle 15 and the movable handle 16 .
[0014] In order to facilitate the exhaust of the oil storage cylinder 1, the gun head body 2 is provided with an exhaust hole 7 communicated with the plunger hole 4, and an air release valve 8 is installed on the exhaust hole 7.
[0015] In order to facilitate packaging and storage, the fixed handle 15 is provided with a buckle 17 for locking the movable handle 16 .
[0016] The above is only a specific embodiment of the present invention and does not limit the present invention in any form. Simple modifications, equivalent changes or modifications made without departing from the technical solution of the present invention all fall within the protection scope of the present invention.
Claims
1. A pistol-type gear-driven grease gun, comprising an oil storage cylinder (1), a gun head body (2) fixed to the oil storage cylinder (1), and a fixed handle (15) arranged on the gun head body (2), wherein: The gun head body (2) is provided with a horizontally arranged plunger hole (4), the plunger hole (4) is provided with an oil inlet hole (3) connected to the oil storage cylinder (1), an oil outlet nozzle (5) is fixed on one side of the plunger hole (4), and a plunger (6) that can reciprocate on the plunger hole (4) is provided on the other side, and a rack (13) is provided at the tail of the plunger (6), an arc groove (10) is provided on the gun head body (2), and a fan gear (12) meshing with the rack (13) and a movable handle (16) are hingedly connected through a hinge shaft (9), and the fan gear (12) is connected to the movable handle (16) as a whole through a guide pin (11), and the guide pin (11) can be slidably arranged on the arc groove (10); when working, the fan gear (12) rotates around the hinge shaft (9) driven by the movable handle (16) and meshes with the rack (13) to drive the plunger (6) to move horizontally.
2. The pistol-type gear-driven grease gun according to claim 1, characterized in that: A return spring (14) is correspondingly arranged between the fixed handle (15) and the movable handle (16).
3. The pistol-type gear-driven grease gun according to claim 1, characterized in that: The gun head body (2) is provided with an exhaust hole (7) which is communicated with the plunger hole (4), and an air release valve (8) is installed on the exhaust hole (7).
4. The pistol-type gear-driven grease gun according to claim 1, 2 or 3, characterized in that: The fixed handle (15) is provided with a buckle (17) for locking the movable handle (16).