A fuel oil quantity screw regulator

Abstract

A fuel oil quantity screw regulator, which relates to the technical field of engine equipment, includes: an outer sleeve tube, one end of the inner hole of which is a hexagonal hole, and two handles are rotatably installed on the outer wall of the outer sleeve tube in opposite directions along its axis; an adjustment assembly, which freely penetrates between the inner and outer sides of the outer sleeve tube along the axis of the outer sleeve tube, and the adjustment assembly includes an operating member, an adjusting member and a socket member. The socket member is located inside the outer sleeve tube and is arranged close to the hexagonal hole. The socket member is elastically connected to the inner wall of the outer sleeve tube. The operating member is located outside one end of the outer sleeve tube away from the hexagonal hole. The adjusting member is connected between the operating member and the socket member, and a locking member is arranged between the adjusting member and the outer sleeve tube; and an indicating assembly, which is used to indicate the rotation angle of the adjusting member driven by the adjusting member.

Description

Technical Field

[0001] The present invention relates to the technical field of engine equipment, and particularly relates to a fuel oil quantity screw regulator. Background Art

[0002] As Figure 1 shown, in the existing engine 9, an oil quantity screw is generally installed on the fuel supply channel for adjusting the fuel supply quantity. The fuel supply channel includes an oil inlet channel 91 and an oil outlet channel 92, and the oil inlet channel 91 and the oil outlet channel 92 are arranged in an L-shaped connection. The oil quantity screw is installed at the intersection of the oil inlet channel 91 and the oil outlet channel 92. The oil quantity screw includes a hexagonal bolt 93 and a square stud 94. The hexagonal bolt 93 is used for fixing with the engine 1, and the square stud 94 coaxially and freely penetrates through the hexagonal bolt 93 and is threadedly connected thereto. The square stud 94 extends into the intersection of the oil inlet channel 91 and the oil outlet channel 92. By rotating the square stud 94, it moves along the axial direction of the hexagonal bolt 93 to change the size of the communication space between the oil inlet channel 91 and the oil outlet channel 92, so as to achieve the purpose of adjusting the fuel supply quantity.

[0003] However, for the existing adjustment method, it is necessary for a person to operate a wrench to first loosen the hexagonal bolt 93, and then use the wrench to turn the square stud 94 to make it rotate and move along the axial direction of the hexagonal bolt 93, so as to adjust the fuel supply quantity. However, in this adjustment method, the stroke of the square stud 94 moving along the axial direction of the hexagonal bolt 93 cannot be accurately controlled, and it is all operated by experience, resulting in that the fuel quantity adjustment cannot be completed accurately and quickly; moreover, due to the limitation of the installation position of the engine 1, when using the wrench to turn the hexagonal bolt 93 and the square stud 94, the operable space of the wrench is limited, making the operation very inconvenient and affecting the operation efficiency. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a fuel oil quantity screw regulator, which solves the problems of poor adjustment accuracy of the oil quantity screw and inconvenient operation in the prior art.

[0005] A fuel oil quantity screw regulator includes:

[0006] An outer sleeve tube, one end of the inner hole of which is a hexagonal hole, and two handles are rotatably installed on the outer wall of the outer sleeve tube in opposite directions along its axial direction;

[0007] Adjusting assembly, which freely penetrates axially through the inner and outer sides of the outer sleeve. The adjusting assembly includes an operating member, an adjusting member, and a socket member. The socket member is located inside the outer sleeve and is arranged close to the hexagonal hole. The socket member is elastically connected to the inner wall of the outer sleeve. The operating member is located outside one end of the outer sleeve away from the hexagonal hole. The adjusting member is connected between the operating member and the socket member. A locking member is provided between the adjusting member and the outer sleeve; and

[0008] Indicator assembly, which is used to indicate the rotation angle of the adjusting member driving the adjusting member.

[0009] Compared with the prior art, the present invention has the following beneficial effects: During use, first pull the operating member, drive the socket member to move into the outer sleeve through the adjusting member. After moving in place, operate the locking member to fix the position of the adjusting member. Then, fit the hexagonal hole with the hexagonal bolt on the engine, open the two handles and drive the outer sleeve to rotate through the two handles to loosen the hexagonal bolt. Then loosen the locking member. Since the socket member is elastically connected to the inner wall of the outer sleeve, the socket member can elastically reset. At the same time, rotate the operating member so that the socket member is fitted with the square stud on the engine. At this time, keep the hexagonal hole and the hexagonal bolt and the socket member and the square stud in a fitted state, zero the indicator assembly, and then operate the locking member to fix the adjusting member. At this time, drive the outer sleeve to rotate again through the two handles, so that under the condition that the indicator assembly indicates unchanged, loosen the hexagonal bolt and the square stud synchronously. Then loosen the locking member again. At this time, rotate the operating member to drive the socket member to rotate through the adjusting member, thereby driving the square stud to rotate to complete the adjustment of the square stud. Since the pitch of the square stud, the diameters of the oil inlet passage and the oil outlet passage, and the flow rate of the fuel are all known, the stroke of the square stud and the flow rate of the fuel at this time can be calculated by the rotation angle displayed by the indicator assembly; the operation is simple and convenient, the fuel supply amount can be adjusted quickly and accurately, and the overall structure of the regulator is compact, the required operation space is small, it is less affected by the installation position of the engine, and the space limitation for use is small.

[0010] Preferably, the inner hole of the outer sleeve includes a conical section, a small-diameter section, and a large-diameter section that are arranged in communication with each other along its axis. The small-diameter end of the conical section is connected to the small-diameter section. The hexagonal hole is provided at one end of the large-diameter section away from the small-diameter section. The socket member includes a limiting platform arranged in the large-diameter section. A square groove is fixedly installed at one end of the limiting platform close to the hexagonal hole. The limiting platform is elastically connected to the inner wall of the large-diameter section close to the small-diameter section through a spring.

[0011] Preferably, the adjusting member includes an adjusting rod. The adjusting rod freely penetrates through the conical section, the small-diameter section, and the large-diameter section and is fixedly connected to the limiting platform. The spring is sleeved outside the adjusting rod. The locking member is arranged between the adjusting rod and the outer sleeve.

[0012] Preferably, the operating member includes an adjusting knob which is fixedly connected to one end of the adjusting rod passing through the conical section.

[0013] Preferably, the indicating assembly includes an indicating member and a display member cooperating therewith. The indicating member is fixedly sleeved on one end of the adjusting rod passing through the conical section, and the display member is fixedly sleeved on the outer side wall of the outer sleeve.

[0014] Preferably, the indicating member includes an indicating seat coaxially and fixedly sleeved on the adjusting rod and a pointer fixedly installed on its side wall.

[0015] Preferably, the display member includes two mounting rings and a plurality of connecting rods. The two mounting rings are sequentially sleeved on the outer side of the outer sleeve along the axial direction of the outer sleeve. One of the mounting rings is fixedly connected to the side wall of the outer sleeve. A scale is provided along the circumferential direction on the end face of the mounting ring arranged close to the pointer and facing the pointer. The plurality of connecting rods are fixedly connected between the two mounting rings at intervals.

[0016] Preferably, the locking member includes a locking nut and a conical chuck. The locking nut is threadedly connected to the outer wall of the conical section of the outer sleeve. The conical chuck is slidably arranged between the inner and outer sides of the conical section of the outer sleeve and is coaxially sleeved on the outer side of the adjusting rod. An annular notch is formed along the circumferential direction on the side wall of one end of the conical chuck located outside the outer sleeve. The locking nut is fixedly connected to the annular notch through a plurality of fixing pins, and the plurality of fixing pins are evenly distributed along the axial direction of the annular notch.

[0017] Preferably, a wrench seat is fixedly installed inside one end of the outer sleeve, and the hexagonal hole is formed in the wrench seat.

[0018] Preferably, the indicating seat is of a double-layer frustum structure, the radius of the upper frustum is smaller than that of the lower frustum, and the pointer is fixedly installed on its end face along the radial direction of the lower frustum.

[0019] Other advantages, objects and features of the present invention will be partly reflected by the following description and partly understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic assembly diagram of an oil quantity screw.

[0021] Figure 2 It is a schematic structural diagram of an embodiment of the present invention.

[0022] Figure 3 It is Figure 2 a side view of

[0023] Figure 4 It is Figure 3 a sectional view taken along the line A-A in

[0024] Figure 5 is Figure 2 the front view of

[0025] Figure 6 is Figure 5 the front view of

[0026] Figure 7 is Figure 2 the bottom view of

[0027] The reference numerals in the figure are in sequence: 1, outer sleeve; 11, wrench seat; 12, hexagonal hole; 2, adjusting rod; 21, adjusting knob; 22, square groove; 23, limiting table; 3, spring; 4, locking nut; 41, fixing pin; 5, conical chuck; 51, annular notch; 6, mounting ring; 61, connecting rod; 62, scale; 7, indicating seat; 71, pointer; 8, handle; 9, engine; 91, fuel inlet passage; 92, fuel outlet passage; 93, hexagon bolt; 94, square stud. Specific embodiments

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present invention clearer and easier to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0029] As Figure 2-7 shown, an embodiment of the present invention provides a fuel quantity screw regulator, including: an outer sleeve 1, one end of the inner hole of which is a hexagonal hole 12, and two handles 8 are rotatably mounted on the outer wall of the outer sleeve 1 in opposite directions along its axis; an adjusting assembly, which is freely inserted axially through the outer sleeve 1 between the inner and outer sides of the outer sleeve 1, and the adjusting assembly includes an operating member, an adjusting member and a socket member, the socket member is located inside the outer sleeve 1 and is arranged close to the hexagonal hole 12, the socket member is elastically connected to the inner wall of the outer sleeve 1, the operating member is located outside one end of the outer sleeve 1 away from the hexagonal hole 12, the adjusting member is connected between the operating member and the socket member, and a locking member is provided between the adjusting member and the outer sleeve 1; and an indicating assembly, which is used to indicate the rotation angle of the adjusting member driving the adjusting member; and preferably, a wrench seat 11 is fixedly installed inside one end of the outer sleeve 1 by screws, and the hexagonal hole 12 is opened on the wrench seat 11; so that the wrench seat 11 can be replaced, which is convenient to replace a suitable wrench seat 11 according to the specification of the hexagon bolt 93.

[0030] First, pull the operating member. The adjusting member drives the socket member to move into the outer sleeve 1. After the movement is in place, operate the locking member to fix the position of the adjusting member. Subsequently, fit the hexagonal hole 12 with the hexagonal bolt 93 on the engine 9. Open the two handles 8 and drive the outer sleeve 1 to rotate through the two handles 8 to loosen the hexagonal bolt 93. Then loosen the locking member. Since the socket member is elastically connected to the inner wall of the outer sleeve 1, the socket member can be elastically reset. At the same time, rotate the operating member so that the socket member is fitted with the square stud 94 on the engine 9. At this time, keep the hexagonal hole 12 and the hexagonal bolt 93 as well as the socket member and the square stud 94 in a fitted state. Zero the indicating assembly. Then operate the locking member to fix the adjusting member. At this time, drive the outer sleeve 1 to rotate again through the two handles 8, so that the hexagonal bolt 93 and the square stud 94 are loosened synchronously under the condition that the indication of the indicating assembly remains unchanged. Then loosen the locking member again. At this time, rotate the operating member to drive the socket member to rotate through the adjusting member, thereby driving the square stud 94 to rotate to complete the adjustment of the square stud 94. Since the pitch of the square stud 94, the diameters of the oil inlet passage 91 and the oil outlet passage 92, and the flow rate of the fuel are known, the stroke of the square stud 94 and the fuel flow rate at this time can be calculated through the rotation angle displayed by the indicating assembly. The operation is simple and convenient, and the fuel supply amount can be adjusted quickly and accurately. Moreover, the overall structure of the regulator is compact, the required operating space is small, it is less affected by the installation position of the engine 9, and the space limitation for use is small.

[0031] As Figure 2-4 and Figure 7 shown, according to another embodiment of the present invention, the fuel quantity screw regulator further optimizes the socket member, the adjusting member and the operating member included therein. The inner hole of the outer sleeve 1 includes a conical section, a small-diameter section and a large-diameter section which are arranged in communication along its axial direction in sequence. The small-diameter end of the conical section is connected to the small-diameter section. The hexagonal hole 12 is arranged at one end of the large-diameter section away from the small-diameter section. The socket member includes a limiting platform 23 arranged in the large-diameter section. A square groove 22 is fixedly installed at one end of the limiting platform 23 close to the hexagonal hole 12. The limiting platform 23 is elastically connected to the inner wall of the large-diameter section close to the small-diameter section through a spring 3.

[0032] The adjusting member includes an adjusting rod 2. The adjusting rod 2 freely passes through the conical section, the small-diameter section and the large-diameter section and is fixedly connected to the limiting platform 23. The spring 3 is sleeved outside the adjusting rod 2. The locking member is arranged between the adjusting rod 2 and the outer sleeve 1.

[0033] The operating member includes an adjusting knob 21. The adjusting knob 21 is fixedly connected to one end of the adjusting rod 2 passing through the conical section. The adjusting rod 2 can be driven to move along the axial direction of the outer sleeve 1 by pulling the adjusting knob 21, or the adjusting rod 2 can be driven to rotate synchronously by rotating the adjusting knob 21.

[0034] Pulling the adjusting knob 21 can drive the limiting platform 23 to slide within the large-diameter section through the adjusting rod 2, while compressing the spring 3; when the square groove 22 is sleeved with the four-corner stud 94, rotating the adjusting knob 21 can drive the adjusting rod 2 and the limiting platform 23 to rotate, thereby driving the four-corner stud 94 to rotate, so as to achieve the purpose of adjusting the four-corner stud 94.

[0035] As Figure 2 shown, according to another embodiment of the present invention, for the fuel oil quantity screw regulator, the included indicating component is further optimized. The indicating component includes an indicating member and a display member cooperating therewith. The indicating member is fixedly sleeved on one end of the adjusting rod 2 passing through the conical section, and the display member is fixedly sleeved on the outer side wall of the outer sleeve 1.

[0036] The indicating member includes an indicating seat 7 fixedly sleeved coaxially on the adjusting rod 2 and a pointer 71 fixedly installed on its side wall; and preferably, the indicating seat 7 is a double-layer frustum structure, the radius of its upper frustum is smaller than the radius of its lower frustum, and the pointer 71 is fixedly installed on its end face along the radial direction of the lower frustum.

[0037] The display member includes two mounting rings 6 and a plurality of connecting rods 61. The two mounting rings 6 are sequentially sleeved on the outer side of the outer sleeve 1 along the axial direction of the outer sleeve 1. One of the mounting rings 6 is fixedly connected to the side wall of the outer sleeve 1. On the end face of the mounting ring 6 close to the pointer 71 and facing the pointer 71, a scale 62 is provided along its circumference. The plurality of connecting rods 61 are fixedly connected at intervals between the two mounting rings 6, and the scale 62 represents an angular value; and preferably, there are two connecting rods 61, and the two connecting rods 61 are symmetrically distributed on both sides of the outer sleeve 1; it can ensure the stable connection of the two connecting rings while reducing the production cost.

[0038] By the pointer 71 indicating the angular value on the scale 62, the specific rotation angle of the four-corner stud 94 can be seen, so as to calculate its stroke according to the known pitch of the four-corner stud 94, and then calculate the adjusted fuel supply according to the stroke of the four-corner stud 94. The formulas and methods for calculating the stroke and the flow rate are all prior arts and will not be described in detail here.

[0039] As Figure 2-4As shown, according to another embodiment of the present invention, the fuel oil quantity screw regulator further optimizes the included indicating assembly. The locking member includes a locking nut 4 and a tapered chuck 5. The locking nut 4 is threadedly connected to the outer wall of the conical section of the outer sleeve 1. The tapered chuck 5 is slidably disposed between the inner and outer sides of the conical section of the outer sleeve 1 and coaxially sleeved outside the adjusting rod 2. An annular notch 51 is formed in the circumferential direction on the side wall of one end of the tapered chuck 5 located outside the outer sleeve 1. The locking nut 4 is fixedly connected to the annular notch 51 through a plurality of fixing pins 41. The plurality of fixing pins 41 are uniformly distributed along the axial direction of the annular notch 51. When fixing the adjusting rod 2, rotate the locking nut 4 to move it along the axial direction of the outer sleeve 1 towards the large-diameter section, thereby driving the tapered chuck 5 to move from its large-diameter end to its small-diameter end within the conical section to clamp and fix the adjusting rod 2. Preferably, there are six fixing pins 41.

[0040] The working principle of the present invention is as follows: When the present invention is in use, first pull the adjusting knob 21, drive the limiting platform 23 and the square groove 22 to move into the large-diameter section through the adjusting rod 2, and at the same time compress the spring 3. Then rotate the locking nut 4 to move it along the axial direction of the outer sleeve 1 towards the large-diameter section, thereby driving the tapered chuck 5 to move from its large-diameter end to its small-diameter end within the conical section to clamp and fix the adjusting rod 2. Then, fit the hexagonal hole 12 of the wrench seat 11 with the hexagonal bolt 93 on the engine 9, open the two handles 8 and drive the outer sleeve 1 to rotate through the two handles 8 to loosen the hexagonal bolt 93. Then rotate the locking nut 4 in the reverse direction to move it along the axial direction of the outer sleeve 1 away from the large-diameter section, driving the tapered chuck 5 to move from its small-diameter end to its large-diameter end within the conical section to release the clamping of the adjusting rod 2 by the tapered chuck 5. At this time, due to the elastic action of the spring 3, the limiting platform 23 is pushed to reset, and at the same time rotate the adjusting knob 21 to make the square groove 22 fit with the square stud 94. At this time, keep the hexagonal hole 12 in fit with the hexagonal bolt 93 and the square groove 22 in fit with the square stud 94. Rotate the adjusting knob 21 to make the pointer 71 indicate the 0° position of the scale 62. Then rotate the locking nut 4 in the above-mentioned manner again to clamp and fix the adjusting rod 2. At this time, drive the outer sleeve 1 to rotate again through the two handles 8, so that the hexagonal bolt 93 and the square stud 94 are simultaneously loosened while the pointer 71 indicates 0° unchanged. Then rotate the locking nut 4 in the reverse direction again to release the clamping of the adjusting rod 2, and then rotate the adjusting knob 21 to drive the square stud 94 to rotate through the adjusting rod 2, the limiting platform 23 and the square groove 22 to complete the adjustment of the square stud 94. After the adjustment is completed, rotate the locking nut 4 to clamp and fix the adjusting rod 2, and then disengage the hexagonal hole 12 from the hexagonal bolt 93 and the square groove 22 from the square stud 94.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fuel quantity screw regulator, characterized in that, Comprising: An outer sleeve (1), one end of the inner hole thereof is a hexagonal hole (12), and the hexagonal hole (12) is used for sleeving with a hexagonal bolt (93) on an engine (9). Two handles (8) are rotatably mounted on the outer wall of the outer sleeve (1) in opposite directions along its axis; An adjusting assembly, which freely penetrates between the inner and outer sides of the outer sleeve (1) along the axis of the outer sleeve (1). The adjusting assembly includes an operating member, an adjusting member and a socket member. The socket member is located inside the outer sleeve (1) and is arranged close to the hexagonal hole (12). The socket member is elastically connected to the inner wall of the outer sleeve (1). The operating member is located outside one end of the outer sleeve (1) away from the hexagonal hole (12). The adjusting member is connected between the operating member and the socket member. A locking member is provided between the adjusting member and the outer sleeve (1); and An indicating assembly, which is used to indicate the rotation angle of the adjusting member driven by the adjusting member; The inner hole of the outer sleeve (1) includes a conical section, a small-diameter section and a large-diameter section that are arranged in sequence and communicated along its axis. The small-diameter end of the conical section is connected to the small-diameter section. The hexagonal hole (12) is arranged at one end of the large-diameter section away from the small-diameter section. The socket member includes a limiting platform (23) arranged in the large-diameter section. A square groove (22) is fixedly installed at one end of the limiting platform (23) close to the hexagonal hole (12). The square groove (22) is used for sleeving with a square stud (94) on the engine (9). The limiting platform (23) is elastically connected to the inner wall of the large-diameter section close to one end of the small-diameter section through a spring (3); The adjusting member includes an adjusting rod (2). The adjusting rod (2) freely penetrates through the conical section, the small-diameter section and the large-diameter section and is fixedly connected to the limiting platform (23). The spring (3) is sleeved outside the adjusting rod (2). The locking member is arranged between the adjusting rod (2) and the outer sleeve (1); The operating member includes an adjusting knob (21). The adjusting knob (21) is fixedly connected to one end of the adjusting rod (2) passing through the conical section; The indicating assembly includes an indicating member and a display member that cooperates with it. The indicating member is fixedly sleeved on one end of the adjusting rod (2) passing through the conical section. The display member is fixedly sleeved on the outer side wall of the outer sleeve (1); The indicating member includes an indicating seat (7) fixedly sleeved coaxially on the adjusting rod (2) and a pointer (71) fixedly installed on its side wall; The display member includes two mounting rings (6) and a plurality of connecting rods (61). The two mounting rings (6) are sequentially sleeved on the outside of the outer sleeve (1) along the axis of the outer sleeve (1). One of the mounting rings (6) is fixedly connected to the side wall of the outer sleeve (1). A scale (62) is provided along the circumferential direction on the end surface of the mounting ring (6) close to the pointer (71) and facing the pointer (71). The plurality of connecting rods (61) are fixedly connected between the two mounting rings (6) at intervals; The locking member includes a locking nut (4) and a taper chuck (5). The locking nut (4) is threadedly connected to the outer wall of the conical section of the outer sleeve (1). The taper chuck (5) is slidably disposed between the inner and outer sides of the conical section of the outer sleeve (1) and coaxially sleeved outside the adjusting rod (2). An annular notch (51) is formed in the circumferential direction on the side wall of one end of the taper chuck (5) located outside the outer sleeve (1). The locking nut (4) is fixedly connected to the annular notch (51) through a plurality of fixing pins (41), and the plurality of fixing pins (41) are uniformly distributed along the axial direction of the annular notch (51).

2. The fuel oil quantity screw regulator according to claim 1, characterized in that, A wrench seat (11) is fixedly installed inside one end of the outer sleeve (1), and the hexagonal hole (12) is formed in the wrench seat (11).

3. A fuel oil quantity screw regulator according to claim 1, characterized in that, The indicating seat (7) has a double-layer frustum structure, and the radius of its upper frustum is smaller than the radius of its lower frustum. The pointer (71) is fixedly installed on its end face along the radial direction of the lower frustum.

Images