CN219606707U - Grease gun oiling protective cap assembly - Google Patents
Grease gun oiling protective cap assembly Download PDFInfo
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- CN219606707U CN219606707U CN202320175136.0U CN202320175136U CN219606707U CN 219606707 U CN219606707 U CN 219606707U CN 202320175136 U CN202320175136 U CN 202320175136U CN 219606707 U CN219606707 U CN 219606707U
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- grease gun
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Abstract
The utility model belongs to the technical field of grease injection devices. A grease gun oiling cap assembly comprising: the connecting part is used for being connected with the oil pipe; the oiling protective cap part is arranged at the oil outlet end of the connecting part; the oiling protective cap part comprises a cylindrical part and a conical part which are arranged along the direction of the oil path; the cylindrical part comprises a shell, an elastic piece and a cylindrical core, wherein the elastic piece and the cylindrical core are arranged in the shell, a central step hole is formed in the shell, the elastic piece is positioned at the oil outlet end of the cylindrical core, the cylindrical core can reciprocate relative to the cylindrical part, and an L-shaped oil conveying channel is formed in the cylindrical core; the conical part is provided with an oil outlet channel. The utility model is used for solving the technical problem of leakage of the connecting hose of the oil nozzle of the existing grease gun.
Description
Technical Field
The utility model belongs to the technical field of manual oil injectors, and particularly relates to an oil injection protective cap assembly of a grease gun.
Background
Manual grease squirts are commonly known as grease guns. The Chinese patent specification of 12/3/2008 publication No. CN201159386Y discloses a butter high-efficiency grease gun, which comprises an outer sleeve, a top cover and an end cover, wherein the end cover is provided with a grease filling device and a grease nipple. The oil filling nozzle is generally connected with a hose in a threaded manner, and the tail end of the hose is provided with an oil outlet. By adopting the grease gun with the structure, if the pressing rod is held carelessly, the oil injection device works, grease can be generated at the oil outlet of the hose, the problem of grease leakage is caused, and the grease gun also needs to be cleaned independently, so that the grease gun is inconvenient to use.
Disclosure of Invention
The utility model aims to provide an oiling protective cap assembly of a grease gun, which is used for solving the technical problem of leakage of a connecting hose of a grease nozzle of the conventional grease gun.
In order to solve the technical problems, the utility model adopts the following technical scheme that the grease gun oiling protective cap component comprises:
the connecting part is used for being connected with the oil pipe;
the oiling protective cap part is arranged at the oil outlet end of the connecting part; the oiling protective cap part comprises a cylindrical part and a conical part which are arranged along the direction of the oil path; the cylindrical part comprises a shell, an elastic piece and a cylindrical core, wherein the elastic piece and the cylindrical core are arranged in the shell, a central step hole is formed in the shell, the elastic piece is positioned at the oil outlet end of the cylindrical core, the cylindrical core can reciprocate relative to the cylindrical part, and an L-shaped oil conveying channel is formed in the cylindrical core; an oil outlet channel is arranged on the conical part;
under the action of the elastic piece or overcoming the action of the elastic piece, the L-shaped oil conveying channel of the column core and the oil outlet channel of the conical part are in a non-communicated or communicated state, so that the switching of the protective cap and the oiling action is realized.
According to the utility model, the oil injection protective cap component of the grease gun is connected to the oil outlet end of the hose, the elastic piece is used for applying pressure to the column core to press the column core to the connecting part, and the oil delivery channel of the column core is not communicated with the oil delivery channel of the conical part. When the pressing rod is held by mistake, under the action of the elastic piece, the conical part cannot discharge oil, so that the protective cap function is realized.
When the oil injection device is used, the pressure rod is held, the generated pressure overcomes the acting force of the elastic piece, the column core is pushed to the conical part, the oil conveying channel of the column core is communicated with the oil outlet channel of the conical part, and the conical part is used for discharging oil, so that the oil injection function is realized.
In order to solve the technical problem of limit of the oil inlet end of the column core, the utility model adopts the following technical scheme that the oil inlet end of the column core is limited through the corresponding end part of the connecting part. The column core is limited by the connecting part, so that the number of parts is small, and the processing and the manufacturing are easy.
In order to solve the technical problem of limiting the oil inlet end of the column core by using the connecting part, the utility model adopts the following technical scheme that a central hole is processed on the connecting part, the central hole of the connecting part and a central step hole of a shell of the column part are coaxially arranged, and the inner diameter of the central hole of the connecting part is smaller than the outer diameter of the central step hole of the shell of the column part where the column core is positioned. According to the utility model, the convex ring is formed at the oil inlet end of the column core by utilizing the small hole of the connecting part, so that the limit of the column core is realized, and the structure is simple.
In order to solve the technical problem of how to position the elastic piece, the utility model adopts the following technical scheme that one end of the elastic piece is arranged on the column core, and the other end of the elastic piece is attached to the conical part. The elastic piece is arranged on the column core, so that the elastic piece is prevented from deflecting in the central step hole of the shell, the elastic piece is ensured to be positioned in the middle of the shell as much as possible, and acting force generated by the elastic piece is stable.
In order to solve the technical problem of how to position the oil outlet end of the elastic piece, the utility model adopts the following technical scheme that the outer diameter of the elastic piece is the same as the outer diameter of the column core, and the outer diameter of the elastic piece is larger than the outer diameter of the oil outlet channel. The end face of the conical part is used for limiting the elastic piece, the oil outlet end of the elastic piece is prevented from sinking into the oil conveying channel, the number of parts is small, and the processing and the manufacturing are easy.
In order to solve the technical problems, the utility model adopts the following technical scheme that the L-shaped oil conveying channel comprises an axial oil inlet channel and a radial oil outlet channel.
In order to solve the technical problems that the acting force of the elastic piece is large and the grease gun is laborious to use due to the large moving distance of the plunger, the utility model adopts the following technical scheme that the distance from the radial oil outlet channel to the oil outlet end of the plunger is 1/2-1/4 of the length of the plunger. By adopting the distance, the hose oil leakage caused by misoperation of the compression bar is ensured, and the problem of difficult and inconvenient use of the grease gun is solved.
In order to solve the technical problem of sealing the column core and the inner wall of the shell, the utility model adopts the following technical scheme that a sealing element is arranged on the column core and is in sealing connection with the inner wall of the shell. The sealing piece is utilized to realize the sealing between the column core and the inner wall of the shell, so that grease is prevented from flowing out of a gap between the column core and the inner wall of the shell, and the problem of oil leakage is further prevented.
The technical proposal of the utility model is further improved, the elastic element is a spring, the cost is low, and the purchase is convenient.
The technical scheme of the utility model is further improved, the utility model adopts the following technical scheme, and the oil outlet channel on the conical part is conical or cylindrical, so that the requirements of different flow rates are met, and the application range is wide.
Drawings
FIG. 1 is a schematic diagram of the grease gun grease injection cap assembly of the present utility model;
FIG. 2 is a schematic illustration of the cap condition of the grease gun grease injection cap assembly of the present utility model;
FIG. 3 is a schematic illustration of a semi-open oil injection condition of the grease gun cap assembly of the present utility model;
FIG. 4 is a schematic diagram of a fully open oiling condition of the grease gun oiling cap assembly of the present utility model;
FIG. 5 is a schematic view of the cartridge of the grease gun grease injection cap assembly of the present utility model;
fig. 6 is a schematic view of the configuration of the cone portion of the grease gun grease cartridge assembly of the present utility model.
Detailed Description
Example 1
As shown in fig. 1-4, the grease gun grease injection cap assembly 1 includes a connection portion 30, a grease injection cap portion. And a connection part 30 for connection with the oil pipe.
The oiling helmet part is arranged at the oil outlet end of the connecting part 30, and comprises a cylindrical part 20 and a conical part 10. The cylindrical portion 20 and the tapered portion 10 are disposed in this order in the oil passage direction.
The cylindrical portion 20 includes a housing, a core 40, and an elastic member 50. The housing includes a first housing 200 and a second housing 201, and the first housing 200 and the second housing 201 have the same outer diameter. A center hole is machined in the first housing 200. A center hole is formed in the second housing 201. The center Kong Waijing of the second housing 201 is greater than the first housing center Kong Waijing. The center Kong Waijing of the second housing 201 and the first housing center Kong Waijing constitute a center stepped hole. An elastic piece 50 and a column core 40 are arranged in the central step hole.
The plunger 40 is reciprocally movable with respect to the cylindrical portion. An L-shaped oil conveying channel is arranged on the column core. The L-shaped oil delivery channel comprises an axial oil inlet channel 401 and a radial oil outlet channel 402. The radial oil outlet passage 402 is spaced from the oil outlet end of the plunger by 1/2 to 1/4 of the length of the plunger 40. By adopting the distance, the hose oil leakage caused by misoperation of the compression bar is ensured, and the problem of difficult and inconvenient use of the grease gun is solved.
The elastic member 50 is located at the oil outlet end of the plunger 40. One end of the elastic member 50 is disposed on the core 40, and the other end of the elastic member 50 is attached to the tapered portion 10. The elastic member 50 is a spring, and has low cost and convenient purchase. The outer diameter of the elastic member 50 is the same as the outer diameter of the column core 40.
The cone 10 includes a cone housing 100. An oil passage 101 is formed in the conical housing 100. The outer diameter of the oil outlet passage 101 is smaller than the outer diameter of the elastic member 50. The oil outlet channel 101 can be conical or cylindrical, so that the requirements of different flow rates are met, and the application range is wide.
In a preferred embodiment, the oil inlet end of the plunger is limited by the end of the corresponding connection.
In a preferred embodiment, a central hole 301 is formed in the connecting portion 300, where the central hole of the connecting portion 301 is coaxially disposed with the central mesa holes of the first and second housings of the column portion 20, and the inner diameter of the central hole 301 of the connecting portion is smaller than the outer diameter of the central stepped hole of the housing of the column portion 20 in which the column core 40 is located.
In a preferred embodiment, the seal member 60 is provided on the core 40, and the seal member 60 is sealingly connected to the inner wall of the first housing 200. And the sealing piece is utilized to realize the sealing between the column core and the inner wall of the first shell, so that grease is prevented from flowing out of a gap between the column core and the inner wall of the shell, and the problem of oil leakage is further prevented.
The using method of the grease gun oiling protective cap assembly 1 comprises the following steps: under the action of the elastic piece or overcoming the action of the elastic piece, the L-shaped oil conveying channel of the column core and the oil outlet channel of the conical part are in a non-communicated or communicated state, so that the switching of the protective cap and the oiling action is realized, and the method specifically comprises the following steps:
(1) The oil delivery channel of the column core is not communicated with the oil delivery channel of the conical part. When the pressing rod is held by mistake, under the action of the elastic piece, the conical part cannot discharge oil, so that the protective cap function is realized.
(2) When the oil injection device is used, the pressure rod is held, the generated pressure overcomes the acting force of the elastic piece, the column core is pushed to the conical part, the oil conveying channel of the column core is communicated with the oil outlet channel of the conical part, and the conical part discharges oil, so that the oil injection function is realized.
Claims (10)
1. Grease gun oiling helmet subassembly, characterized by includes:
the connecting part is used for being connected with the oil pipe;
the oiling protective cap part is arranged at the oil outlet end of the connecting part; the oiling protective cap part comprises a cylindrical part and a conical part which are arranged along the direction of the oil path; the cylindrical part comprises a shell, an elastic piece and a cylindrical core, wherein the elastic piece and the cylindrical core are arranged in the shell, a central step hole is formed in the shell, the elastic piece is positioned at the oil outlet end of the cylindrical core, the cylindrical core can reciprocate relative to the cylindrical part, and an L-shaped oil conveying channel is formed in the cylindrical core; an oil outlet channel is arranged on the conical part;
under the action of the elastic piece or overcoming the action of the elastic piece, the L-shaped oil conveying channel of the column core and the oil outlet channel of the conical part are in a non-communicated or communicated state, so that the switching of the protective cap and the oiling action is realized.
2. The grease gun oiling cap assembly of claim 1, wherein the oil inlet end of the plunger is limited by the corresponding end of the connecting portion.
3. The grease gun oiling cap assembly of claim 1 or 2, wherein a central hole is machined in the connecting portion, the connecting portion central hole is coaxially arranged with a central stepped hole of the shell of the cylindrical portion, and the inner diameter of the connecting portion central hole is smaller than the outer diameter of the central stepped hole of the shell of the cylindrical portion where the cylindrical core is located.
4. A grease gun grease injection cap assembly as recited in claim 3, wherein one end of the resilient member is disposed on the post core and the other end of the resilient member engages the tapered portion.
5. The grease gun grease injection cap assembly of claim 4, wherein the outer diameter of the resilient member is the same as the outer diameter of the plunger, the outer diameter of the resilient member being greater than the outer diameter of the oil outlet passage.
6. The grease gun grease injection cap assembly of claim 1, wherein the L-shaped grease delivery passage comprises an axial oil inlet passage and a radial oil outlet passage.
7. The grease gun grease injection cap assembly of claim 6, wherein the radial grease outlet passage is spaced from the grease outlet end of the plunger by a distance of 1/2 to 1/4 of the length of the plunger.
8. The grease gun oiling cap assembly of claim 4, wherein the cartridge is provided with a seal member in sealing connection with the inner wall of the housing.
9. The grease gun grease injection cap assembly of claim 8, wherein the resilient member is a spring.
10. The grease gun grease injection cap assembly of claim 1, wherein the oil outlet passage on the tapered portion is tapered or cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320175136.0U CN219606707U (en) | 2023-02-10 | 2023-02-10 | Grease gun oiling protective cap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320175136.0U CN219606707U (en) | 2023-02-10 | 2023-02-10 | Grease gun oiling protective cap assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219606707U true CN219606707U (en) | 2023-08-29 |
Family
ID=87739684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320175136.0U Active CN219606707U (en) | 2023-02-10 | 2023-02-10 | Grease gun oiling protective cap assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219606707U (en) |
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2023
- 2023-02-10 CN CN202320175136.0U patent/CN219606707U/en active Active
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