Oil nozzle pressure self-locking device

Abstract

An oil nozzle pressure self-locking device comprises a self-locking shell, a self-locking lock cylinder, a self-locking rubber sleeve, a self-locking steel ball, a self-locking spring and a self-locking filter screen, the self-locking lock cylinder and the self-locking lock screen are arranged at two side face ports of the self-locking shell respectively and used for forming an oil pressure channel, and the self-locking lock cylinder, the self-locking rubber sleeve, the self-locking steel ball and the self-locking spring are included. Compared with the prior art, the oil nozzle pressure self-locking device has the beneficial effects that limiting and non-limiting of the self-locking steel ball are achieved through contraction and extension of the self-locking spring under the action of oil pressure, whether oil passes or not is controlled through sealing and abutting and separation of the self-locking steel ball and the self-locking rubber sleeve, and the oil nozzle pressure self-locking device is convenient to use. And the problem of energy waste caused when oil supply is stopped can be effectively controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil injection nozzle and valve. BACKGROUND

[0002] At present, the existing oil injection nozzle on the market is mainly applied to small light oil pressure atomizing burners, and is used in light fuel oil hot air blower, light stove for hotel kitchen and other equipment; the opening and closing of the oil injection nozzle atomization work depends on whether the oil pump works or not, when the oil pump works, the light oil is delivered to the oil injection nozzle through the oil path, and is sprayed out through the oil nozzle atomization, when the oil pump stops working, there is still a little pressure and oil in the oil path from the oil pump to the oil injection nozzle, this part of oil will not be atomized or not be atomized well, and after being sprayed out through the oil nozzle, it is not enough for combustion, causing energy waste. SUMMARY

[0003] The purpose of the present application is to provide an oil injection nozzle pressure self-locking device for solving the above problems, comprising a self-locking shell 1, a self-locking lock core 2, a self-locking rubber sleeve 3, a self-locking steel ball 4, a self-locking spring 5 and a self-locking filter screen 7, the self-locking lock core 2 and the self-locking filter screen 7 are respectively arranged at two side ports of the self-locking shell 1, for forming an oil pressure channel, the self-locking lock core 2, the self-locking rubber sleeve 3, the self-locking steel ball 4, the self-locking spring 5 and the self-locking filter screen 7 are sequentially installed in the oil pressure channel from top to bottom, the port close to the self-locking lock core 2 is an oil outlet, and the port close to the self-locking filter screen 7 is an oil inlet, one end of the self-locking spring 5 abuts against the self-locking steel ball 4, and the other end of the self-locking spring 5 abuts against the self-locking filter screen 7, the self-locking steel ball 4 is limited by the self-locking spring 5, and the self-locking steel ball 4 abuts against one end of a cylindrical counterbore through hole 31 of the self-locking rubber sleeve 3.

[0004] The self-locking lock core 2 is adhered in the cylindrical counterbore through hole 31 of the self-locking rubber sleeve 3, and is installed into a lock core counterbore 11 arranged at the top end of the self-locking shell 1.

[0005] The self-locking rubber ring 6 is sleeved on an outer ring groove 13 of the self-locking shell 1.

[0006] The self-locking filter screen 7 is installed into a filter screen counterbore 14 of the self-locking shell 1, and the self-locking filter screen 7 is fixed by the self-locking shell 1 through the extrusion hole closing mode.

[0007] Compared with the prior art, the oil injection nozzle pressure self-locking device has the beneficial effects that the self-locking spring 5 is contracted and stretched under the action of oil pressure, so as to realize the limiting and non-limiting of the self-locking steel ball 4, the self-locking steel ball 4 and the self-locking rubber sleeve 3 are sealed and separated, so as to control the passing and not passing of the oil, and the energy waste problem caused by the stop of oil supply can be effectively controlled. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1The assembly structure sectional view of the fuel nozzle pressure self-locking device of the present application, the cylindrical countersunk hole of the self-locking rubber sleeve is communicated, and is arranged in the self-locking shell 1. The self-locking steel ball 4 abuts against the middle hole position of the self-locking rubber sleeve 3. One end of the self-locking spring 5 abuts against the self-locking steel ball 4, and the other end abuts against the self-locking filter screen 7. The self-locking rubber ring 6 is sleeved into the external ring groove of the self-locking shell 1.

[0009] Figure 2 The assembly product sectional view of the fuel nozzle pressure self-locking device of the present application, one end of the self-locking shell 1 is fixed by the way of extruding the hole to fix the self-locking filter screen 7.

[0010] Figure 3 The sectional view of the self-locking shell 1 in the present application, the top end of the self-locking shell 1 is provided with the lock core countersunk hole 11, the tail end is provided with the filter screen countersunk hole 14, the inside is provided with the shell through hole 12, and the outside is provided with the ring groove 13.

[0011] Figure 4 The bottom view of the self-locking shell 1 in the present application, the inside of the self-locking shell 1 is provided with the keyhole 15.

[0012] Figure 5 The sectional view of the self-locking valve core 2 in the present application, the self-locking valve core 2 is provided with the lock core through hole 21.

[0013] Figure 6 The sectional view of the self-locking rubber sleeve 3 in the present application, the self-locking rubber sleeve 3 is provided with the cylindrical countersunk hole 31 through hole.

[0014] Figure 7 The side view of the self-locking spring 5 in the present application.

[0015] Figure 8 The side view of the self-locking steel ball 4 in the present application.

[0016] Figure 9 The top view of the self-locking filter screen 7 in the present application.

[0017] Figure 10 The top view of the self-locking rubber sleeve 6 in the present application.

[0018] The following reference signs are marked on the drawings in combination with the drawings: 1-self-locking shell; 2-self-locking valve core; 3-self-locking rubber sleeve; 4-self-locking steel ball; 5-self-locking spring; 6-self-locking rubber ring; 7-self-locking filter screen; 11-lock core countersunk hole; 12-shell through hole; 13-ring groove; 14-filter screen countersunk hole; 15-keyhole; 21-lock core through hole; 31-cylindrical countersunk hole through hole. DETAILED DESCRIPTION

[0019] For the purpose of making the present application and technical solutions more clear, the present application is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood, however, that these descriptions are only exemplary, but not intended to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concepts of the present application.

[0020] Please refer to Figures 1-10 The oil nozzle pressure self-locking device provided by the embodiment of the present application comprises a self-locking shell 1, a self-locking valve core 2, a self-locking rubber sleeve 3, a self-locking steel ball 4, a self-locking spring 5, a self-locking rubber ring 6 and a self-locking filter screen 7.

[0021] The self-locking valve core 2 is adhered inside the cylindrical countersunk through hole 31 of the self-locking rubber sleeve 3 and is installed into the lock core counterbore 11 arranged at the top end of the self-locking shell 1.

[0022] The self-locking steel ball 4 abuts on one end of the cylindrical countersunk through hole 31 of the self-locking rubber sleeve 3.

[0023] One end of the self-locking spring 5 abuts on the self-locking steel ball 4 and the other end abuts on the self-locking filter screen 7 to limit the self-locking steel ball 4.

[0024] The self-locking rubber ring 6 is sleeved on the outer ring groove 13 of the self-locking shell 1.

[0025] The self-locking filter screen 7 is installed into the filter screen counterbore 14 of the self-locking shell 1, and the self-locking shell 1 fixes the self-locking filter screen 7 by the way of extrusion and hole collection.

[0026] It can be understood that the self-locking rubber sleeve 3 and the self-locking valve core 2 are used to block one side end surface of the self-locking shell 1, and the self-locking filter screen 7 and the extrusion and hole collection of the self-locking shell 1 are used to block the other side end surface of the self-locking shell 1.

[0027] It can be understood that the self-locking spring 5 is used to limit the activity range of the self-locking steel ball 4.

[0028] As can be seen from the above, in the working process of the oil nozzle pressure self-locking device, the oil flows into the internal space of the self-locking shell 1 through the self-locking filter screen 7 and contacts the self-locking spring 5 and the self-locking steel ball 4. When the oil in the internal space of the self-locking shell 1 reaches a certain pressure, the self-locking spring 5 is contracted under the action of the oil pressure, the self-locking steel ball 4 loses the limit and separates from the self-locking rubber sleeve 3, and the oil flows out through the self-locking rubber sleeve 3 and the self-locking valve core 2. When the oil stops entering, the pressure in the internal space of the self-locking shell 1 decreases, the self-locking spring 5 expands to send the self-locking steel ball 4 back to the limit position, the self-locking steel ball 4 seals against the self-locking rubber sleeve 3, and the oil stops flowing.

[0029] The oil nozzle pressure self-locking device can effectively control the energy waste caused by the stop of oil supply by realizing the limiting and non-limiting of the self-locking steel ball 4 through the contraction and expansion of the self-locking spring 5 under the action of oil pressure, and controlling the passing and non-passing of oil by the sealing and separation of the self-locking steel ball 4 and the self-locking rubber sleeve 3.

[0030] The oil nozzle pressure self-locking device adopts the overall assembly mode of sleeving, bonding and abutting, which is simple and convenient, and reduces the assembly difficulty.

Claims

1. A fuel injector pressure self-locking device, characterized in that, The system includes a self-locking outer shell (1), a self-locking lock cylinder (2), a self-locking rubber sleeve (3), a self-locking steel ball (4), a self-locking spring (5), a self-locking rubber ring (6), and a self-locking filter (7). The self-locking lock cylinder (2) and the self-locking filter (7) are respectively located at the two side ports of the self-locking outer shell (1) to form a hydraulic channel. The self-locking lock cylinder (2), the self-locking rubber sleeve (3), the self-locking steel ball (4), the self-locking spring (5), and the self-locking filter (7) are in the oil... The components are installed in an orderly manner from top to bottom in the pressure channel. The port near the self-locking lock core (2) is the oil outlet, and the port near the self-locking filter (7) is the oil inlet. One end of the self-locking spring (5) abuts against the self-locking steel ball (4), and the other end of the self-locking spring (5) abuts against the self-locking filter (7) to limit the self-locking steel ball (4). The self-locking steel ball (4) abuts against one end of the cylindrical countersunk through hole (31) of the self-locking rubber sleeve (3).

2. The fuel injector pressure self-locking device according to claim 1, characterized in that, The self-locking lock cylinder (2) is bonded inside the cylindrical countersunk through hole (31) of the self-locking rubber sleeve (3) and installed into the lock cylinder countersunk hole (11) provided at the top of the self-locking outer shell (1).

3. The fuel injector pressure self-locking device according to claim 2, characterized in that, The self-locking rubber ring (6) is fitted into the outer annular groove (13) of the self-locking outer shell (1).

4. The fuel injector pressure self-locking device according to claim 3, characterized in that, The self-locking filter (7) is inserted into the filter recess (14) of the self-locking housing (1), and the self-locking housing (1) fixes the self-locking filter (7) by squeezing and closing the hole.

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