Floor spring safety valve structure
By setting oil inlets and filters in the ground spring safety valve, the steel ball pushes the spring structure solves the problem of unstable steel ball pushing in the prior art, and filters oil impurities through the filter, achieving more stable spring expansion and contraction and oil clean.
Patent Information
- Application Number
- CN202420752928.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-12
AI Technical Summary
In existing ground spring safety valves, steel balls will have unstable pushing problems when they push the spring directly for a long time.
A ground spring safety valve structure is designed, in which steel balls are arranged at the oil inlet of the plug head, and the oil enters and pushes the steel balls. The steel balls push the springs into retract through the valve seat, reducing direct contact between the steel balls and the springs, and passing through filtering The net filters impurities in the oil.
The spring is achieved more stable expansion and contraction when the steel ball is pushed, and impurities in the oil are filtered through the filter, improving the stability and cleanliness of the system.
Smart Images
Figure CN222276485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of floor springs, in particular to a floor spring safety valve structure. Background Art
[0002] The floor spring is a hydraulic door closer, except that the device that compresses the spring is a worm gear instead of a gear or rack. Because the worm gear can rotate forward and reverse, the floor spring can be used for doors that open in both directions, while the door closer can only be used for doors that open in one direction.
[0003] The safety valve in the floor spring is hydraulically squeezed to push the spring to expand and contract through the steel ball to achieve the entry of hydraulic oil. However, if the steel ball directly pushes the spring for a long time, the pushing will be unstable. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a floor spring safety valve structure, which solves the problem of unstable pushing caused by a steel ball directly pushing a spring for a long time.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a floor spring safety valve structure, including a plug, the inner cavity of the plug is provided with a body, the end of the body is fixedly sleeved with a ring, the inner cavity of the body is slidably sleeved with a steel ball and a spring respectively, one end of the spring is movably sleeved with a valve seat, and one end of the body is fixedly sleeved with a pin.
[0006] Preferably, an oil inlet is formed at one end of the body, and the steel ball abuts against the oil inlet.
[0007] Preferably, the diameter of the oil inlet is smaller than the diameter of the steel ball, and the oil inlet is communicated with the inner cavity of the body.
[0008] Preferably, the steel ball is in contact with the valve seat, and the other end of the spring is pressed on the latch.
[0009] Preferably, a filter screen is arranged outside one side of the plug. Beneficial Effects
[0010] The utility model provides a floor spring safety valve structure. Compared with the prior art, it has the following beneficial effects:
[0011] 1. The structure of the spring safety valve is that the oil first enters from the oil inlet opened at one end of the body and pushes the steel ball, and the steel ball pushes the spring through the valve seat to retract in the inner cavity of the body. At the same time, the spring rests on the latch and is sleeved on one end of the spring through the valve seat to reduce the direct contact between the steel ball and the spring. In this way, when the steel ball pushes, the expansion and contraction of the spring will be more stable. Secondly, the oil can be filtered through the filter to filter out impurities in the oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a cross-sectional view of the structure of the utility model;
[0014] Figure 3 It is a schematic diagram of the structural disassembly of the utility model.
[0015] In the figure: 1. plug; 2. body; 3. oil inlet; 4. ring; 5. filter; 6. steel ball; 7. valve seat; 8. spring; 9. pin. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-3 The utility model provides a technical solution: a floor spring safety valve structure, including a plug 1, an inner cavity of the plug 1 is provided with a body 2, one end of the body 2 is provided with an oil inlet 3, a steel ball 6 abuts against the oil inlet 3, the diameter of the oil inlet 3 is smaller than the diameter of the steel ball 6, and the oil inlet 3 is communicated with the inner cavity of the body 2, a collar 4 is fixedly sleeved at the end of the body 2, a steel ball 6 and a spring 8 are slidably sleeved in the inner cavity of the body 2, one end of the spring 8 is movably sleeved with a valve seat 7, and one end of the body 2 is fixedly sleeved with a latch 9, the steel ball 6 and the valve seat 7 are in contact with each other, and the other end of the spring 8 is pressed on the latch 9.
[0018] The inner cavity of the plug 1 is a countersunk hole with one end being larger and the other end being smaller. Both ends of the latch pin 9 extend out of the surface of the body 2 and are located in the inner cavity of the plug 1 which is larger at one end.
[0019] A filter screen 5 is arranged outside one side of the plug 1, and the filter screen 5 does not contact the side of the plug 1. The filter screen 5 is directly stuck in the inner cavity of one end of the piston, and the main body 2 is also sleeved in the inner cavity of one end of the piston. In this way, when oil passes through, it flows in from one end of the plug 1 and is filtered through the filter screen 5.
[0020] When in use, first install the filter screen 5 in the inner cavity at one end of the piston, and the plug head 1 is also sleeved in the inner cavity at one end of the piston. When the hydraulic pressure passes through the oil, the oil first enters from the oil inlet 3 opened at one end of the body 2 and pushes the steel ball 6. The steel ball 6 pushes the spring 8 to retract in the inner cavity of the body 2 through the valve seat 7. At the same time, the spring 8 rests on the latch 9 and is sleeved on one end of the spring 8 through the valve seat 7. In this way, when the steel ball 6 pushes, the expansion and contraction of the spring 8 will be more stable, and then the steel ball 6 leaves the outlet of the oil inlet 3, so that the hydraulic pressure flows out to one end along the inner cavity of the body 2, and finally the oil impurities are filtered through the filter screen 5.
[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
Claims
1. A floor spring safety valve structure, comprising a plug (1), characterized in that: The inner cavity of the plug (1) is provided with a body (2), the end of the body (2) is fixedly sleeved with a collar (4), the inner cavity of the body (2) is slidably sleeved with a steel ball (6) and a spring (8), one end of the spring (8) is movably sleeved with a valve seat (7), and one end of the body (2) is fixedly sleeved with a latch (9).
2. A floor spring safety valve structure according to claim 1, characterized in that: An oil inlet (3) is provided at one end of the body (2), and the steel ball (6) abuts against the oil inlet (3).
3. A floor spring safety valve structure according to claim 2, characterized in that: The diameter of the oil inlet (3) is smaller than the diameter of the steel ball (6), and the oil inlet (3) is in communication with the inner cavity of the body (2).
4. A floor spring safety valve structure according to claim 1, characterized in that: The steel ball (6) and the valve seat (7) are in contact with each other, and the other end of the spring (8) is pressed against the latch (9).
5. A floor spring safety valve structure according to claim 1, characterized in that: A filter screen (5) is arranged outside one side of the plug (1).