CN212479444U

CN212479444U - Hand-pulling type auxiliary starting device

Info

Publication number: CN212479444U
Application number: CN202021450643.3U
Authority: CN
Inventors: 林勇; 何洪伟
Original assignee: Taizhou Kunzheng Technology Co ltd
Current assignee: Taizhou Kunzheng Technology Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-02-05
Anticipated expiration: 2030-07-21

Abstract

The utility model provides a hand-pulling auxiliary starting device belongs to auxiliary starting technical field. The manual auxiliary starting device solves the problems that an existing manual auxiliary starting device is unstable in use and poor in reliability. This supplementary starting drive of hand-pulling type includes housing, stay cord and starter pulley, and the housing is one side opening one side confined tubular structure, and the inboard roof of housing has linked firmly the dabber, and the starter pulley cover is outside the dabber, and the outer peripheral face of starter pulley is equipped with the grooving, and the stay cord is outside the starter pulley along the grooving winding, and stay cord one end is fixed mutually with the starter pulley and its other end stretches out outside the housing, the housing in be close to the stay cord and stretch out starter pulley department and be equipped with the locating part, the locating part includes the base plate and from the limiting plate of base plate one side bending type formation, the limiting plate is located the starter pulley outside, the base plate passes through the fastener with the housing. This supplementary starting drive of hand-pulling type has advantages such as the dismouting is convenient, stability is strong, the reliability is strong.

Description

Hand-pulling type auxiliary starting device

Technical Field

The utility model belongs to the technical field of the auxiliary starting, a hand-pulling auxiliary starting device is related to.

Background

With the continuous progress of society, the degree of agricultural mechanization is higher and higher, and agricultural cultivators are more and more commonly used, and the power source of the agricultural cultivator is a gasoline/diesel engine which can be driven by auxiliary starting equipment before working to enter a running state. Common starter has hand starter and hand power starter, and wherein hand power starter has comparatively stable market because its simple structure and cost are lower.

For example, patent application No. 201220545144.1 discloses a hand-pulling starter for diesel engine, which comprises a fixed cover with a recess inside and a starting disk arranged in the recess of the fixed cover, wherein the recess has a central shaft and a coil groove, the starting disk is sleeved on the central shaft, the starting disk can rotate around the central shaft, the coil groove is internally provided with a coil, one end of the coil is fixed on the side wall of the coil groove, the other end of the coil is fixed on the starting disk, the starting disk is provided with an annular groove, a starting rope is arranged in the annular groove, the outer end of the starting rope penetrates out of the edge of the fixed cover, a mounting groove is arranged at the outer end part of the starting disk in a clearance mode, and a starting claw is hinged. When the starting device is operated, the starting rope is pulled to rotate around the central shaft, the coil spring is wound to store force during the rotation, and meanwhile, the starting claw swings around a hinge point to be outwards opened and inserted into a hole corresponding to a starting cup on the diesel engine; when the starting rope is loosened, the starting disc reversely rotates around the central shaft at a high speed under the elastic force released by the coil spring, so that the starting disc can drive the starting cup to rotate at a high speed to start the diesel engine.

In this kind of hand-pulling type starting drive, only rely on the inner wall of fixed lid to carry out some spacings to the stay cord, but the phenomenon of rope skipping or dislocation often appears in the stay cord in the in-service use process, leads to the use of whole device not stable enough, the reliability is relatively poor.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a supplementary starting drive of hand-pulling type, solved and used unstable and the poor problem of reliability.

The purpose of the utility model can be realized by the following technical proposal:

hand-pulling type auxiliary starting device, including housing, stay cord and starter pulley, the housing be one side opening one side confined tubular structure, the inboard roof of housing has linked firmly the dabber, the starter pulley cover is outside the dabber, the outer peripheral face of starter pulley is equipped with the grooving, the stay cord is outside the starter pulley along the grooving winding, stay cord one end is fixed mutually with the starter pulley and its other end stretches out outside the housing, its characterized in that, the housing in be close to the stay cord and stretch out starter pulley department and be equipped with the locating part, the locating part includes the base plate and from the limiting plate of a base plate lateral buckling formation, the limiting plate is located the starter pulley outside, the base plate passes through the fastener with the housing and fixes mutually, the stay cord is spacing.

The limiting part is arranged at the position, close to the pull rope, of the shell and stretching out of the starting wheel, the limiting plate of the limiting part is located on the outer side of the starting wheel, so that the pull rope can be limited between the bottom of the rope groove and the limiting plate, the movement of the pull rope can be completely limited at the position of the rope groove, the phenomenon of rope skipping or dislocation in the starting process is eliminated, and the use stability and the reliability of the hand-pulling type auxiliary starting device are well improved. In addition, the limiting part is installed and fixed on the housing through an independent fastener and is only used for realizing the limiting function without other purposes, so that a user can install and use the limiting part according to the requirement, and the limiting part is very convenient to install and disassemble.

In the above hand-pulling auxiliary starting device, the outer circumferential surface of the starting wheel is a conical surface, the rope groove is a spiral groove, one end of the pull rope is fixed at the end with the smaller outer diameter of the starting wheel, the other end of the pull rope is led out from the end with the larger outer diameter of the starting wheel, and the limiting plate is obliquely arranged towards the starting wheel relative to the substrate.

The grooving is spiral groove for stay cord winding is the circular cone heliciform after on the starter wheel, makes the user can comparatively easily rotate through stay cord pulling starter wheel in the initial stage on the one hand, can form automatic acceleration with the help of the grooving at the follow-up pivoted in-process of starter wheel simultaneously, in order to improve diesel engine's ignition success rate. Correspondingly, set up the limiting plate for the base plate orientation starter wheel slope, then can make the tapering that the limiting plate cooperation starter wheel comes to carry on spacingly to the stay cord.

In the above hand-pulling auxiliary starting device, the clearance between the limiting plate and the outer circumferential surface of the starting wheel is smaller than the outer diameter of the pull rope.

The clearance between the limiting plate and the outer peripheral surface of the starting wheel is smaller than the outer diameter of the pull rope, so that the pull rope cannot fall into another adjacent circle of rope groove from the circle of rope groove where the pull rope is located.

In the above hand-pulling auxiliary starting device, the fastening member includes a fastening screw and a fastening nut, an end of the fastening screw passes through the substrate from the outside of the closed side of the housing, and the fastening nut is screwed on the end of the fastening screw to fix the substrate.

In the above hand-pulling auxiliary starting device, the edge of the substrate and the edge of the limiting plate are provided with reinforcing skirts formed by folding.

In the above hand-pulling auxiliary starting device, the housing has a recess portion recessed toward the inside of the housing, the shape of the inside of the recess portion is the same as the head of the fastening screw, and the head of the fastening screw is embedded into the inside of the recess portion.

The head of the fastening screw is embedded into the inner side of the concave part, so that the outer side of the housing can be kept flat, and the appearance is more attractive.

In the above-mentioned hand-pulling auxiliary starting device, the bottom surface of the recessed portion is a plane, and the substrate abuts against the bottom surface of the recessed portion.

Compared with the prior art, this supplementary starting drive of hand-pulling type sets up the locating part through being close to the stay cord and stretching out starter wheel department in the housing, and the limiting plate of locating part is located the starter wheel outside and makes the stay cord can be spacing between grooving bottom and limiting plate, so just can restrict the activity of stay cord in the position department at grooving place completely, thereby eliminated the phenomenon that rope skipping or dislocation appear in the start-up process, improved supplementary starting drive's of hand-pulling type stability in use and reliability well.

In addition, the limiting part is installed and fixed on the housing through an independent fastener and is only used for realizing the limiting function without other purposes, so that a user can install and use the limiting part according to the requirement, and the limiting part is very convenient to install and disassemble.

Drawings

Fig. 1 is a schematic diagram of the auxiliary starting device of the hand pulling type.

Fig. 2 is a sectional view of the auxiliary starting device.

Fig. 3 is a schematic diagram of the cooperation between the limiting member and the starting wheel in the auxiliary starting device.

In the figure, 1, a housing; 1a, a recess; 2. pulling a rope; 3. a starter wheel; 3a, rope grooves; 3b, annular bulges; 3c, a circular boss; 3c1, accommodating grooves; 4. a mandrel; 4a, a circular plate; 5. a limiting member; 5a, a substrate; 5b, a limiting plate; 5c, reinforcing the skirt; 6. fastening screws; 7. fastening a nut; 8. a volute spiral spring; 9. matching rings; 10. starting a claw; 11. a claw disk; 12. a nut; 13. a spring; 14. a handle.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the hand-pulling auxiliary starting device includes a housing 1, a pull rope 2, a volute spring 8, a mandrel 4 fixed in the housing 1 and a starting wheel 3 sleeved on the mandrel 4, a rope groove 3a is provided on the outer peripheral surface of the starting wheel 3, the pull rope 2 is wound outside the starting wheel 3 along the rope groove 3a, one end of the pull rope 2 is fixed with the starting wheel 3, and the other end of the pull rope 2 extends out of the housing 1 and is connected with a handle 14. Specifically, the outer peripheral surface of the starter wheel 3 is a conical surface, the rope groove 3a is a spiral groove, the rope groove 3a winds the outer peripheral surface of the starter wheel 3 for at least three circles, one end of the pull rope 2 is fixed at one end of the starter wheel 3 with a smaller outer diameter, and the other end of the pull rope 2 is led out from one end of the starter wheel 3 with a larger outer diameter. Housing 1 is one side opening one side confined tubular structure, 4 one ends of dabber have circular slab 4a,

circular slab

4a and 1 inboard roof welded fastening of housing, 4 outer couplings of dabber have the cooperation ring 9, cooperation ring 9 and circular slab 4a welded fastening, the 9 lateral parts of cooperation ring run through and are provided with bayonet socket two, the great terminal surface of 3 external diameters of starter wheel is equipped with the cavity, the cavity inner wall is the conical surface the same with 3 outer peripheral face tapering of starter wheel, the cavity inner wall has linked firmly annular arch 3b, the protruding 3b lateral parts of annular run through and are provided with bayonet socket one, volute spiral spring 8 locates in the annular arch 3b and dabber 4 passes from volute spiral spring 8 center, volute spiral spring 8's both ends are hooked respectively on bayonet socket one lateral wall and bayonet socket two lateral walls. Two ends of the spiral spring 8 are respectively hooked on the bayonet one side wall and the bayonet two side walls, and the matching ring 9 is fixed when a user pulls the starting wheel 3 to rotate, so that one end of the spiral spring 8 is fixed, and the spiral spring 8 can be driven to tighten when the starting wheel 3 rotates so as to accumulate energy required by starting a diesel engine.

Further, the smaller one end of starter wheel 3 external diameter has circular boss 3c, and circular boss 3c terminal surface symmetric distribution has two holding tanks 3c1, and it has the start claw 10 that can carry out the swing for starter wheel 3 to articulate respectively in two holding tanks 3c 1. The other end of the mandrel 4 is sleeved with a claw disc 11, the end part of the circular boss 3c is positioned on the inner side of the claw disc 11, two circular arc claw outlets are arranged on the side part of the claw disc 11 in a penetrating mode, and one ends of the two starting claws 10 are respectively positioned at the two circular arc claw outlets. The end part of the mandrel 4 is connected with a nut 12 in a threaded manner, the mandrel 4 is sleeved with a spring, and the elastic force of the spring acts on the claw disc 11 and pushes the claw disc against the nut 12. The spring pressing the pawl disk 11 against the nut 12 creates a friction force that prevents the pawl disk 11 from rotating so that when the user pulls the pull cord 2 to rotate the starter wheel 3, the pawl disk 11 remains stationary and the starter pawl 10 opens outwardly about the hinge point by abutting the circular arc exit side wall.

Furthermore, a limiting member 5 is disposed in the housing 1 near the position where the pull rope 2 extends out of the starter wheel 3, the limiting member 5 includes a base plate 5a and a limiting plate 5b bent from one side of the base plate 5a, the limiting plate 5b is located outside the starter wheel 3, and the limiting plate 5b is specifically disposed in an inclined manner toward the starter wheel 3 with respect to the base plate 5 a. The clearance between the limiting plate 5b and the outer peripheral surface of the starting wheel 3 is smaller than the outer diameter of the pull rope 2, so that the pull rope 2 is limited between the bottom of the rope groove 3a and the limiting plate 5 b. The base plate 5a and the housing 1 are fixed by a fastener, the fastener includes a fastening screw 6 and a fastening nut 7, an end portion of the fastening screw 6 passes through the base plate 5a from the closed side of the housing 1, and the fastening nut 7 is screwed on the end portion of the fastening screw 6 to fix the base plate 5 a. The housing 1 has a recessed portion 1a recessed toward the inside of the housing 1, the shape of the inside of the recessed portion 1a is the same as the head of the fastening screw 6, specifically, it is hexagonal, and the head of the fastening screw 6 is fitted into the inside of the recessed portion 1 a. The bottom surface of the recess 1a is a flat surface, and the substrate 5a abuts against the bottom surface of the recess 1 a. The edge of the base plate 5a and the edge of the limiting plate 5b are provided with reinforcing skirts 5c formed by folding.

Through set up locating part 5 near pull rope 2 stretches out starter wheel 3 department in housing 1, the limiting plate 5b of locating part 5 is located the 3 outsides of starter wheel and makes pull rope 2 can be spacing between grooving 3a bottom and limiting plate 5b, so just can restrict the activity of pull rope 2 completely in the position department at grooving 3a place, thereby the phenomenon of rope skipping or dislocation appears in the start-up process has been eliminated, auxiliary starting drive's of hand-pulling type stability in use and reliability have been improved well.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A hand-pulling type auxiliary starting device comprises a housing (1), a pull rope (2) and a starting wheel (3), wherein the housing (1) is of a cylindrical structure with one open side and one closed side, the top wall of the inner side of the housing (1) is fixedly connected with a mandrel (4), the starting wheel (3) is sleeved outside the mandrel (4), a rope groove (3a) is formed in the outer peripheral surface of the starting wheel (3), the pull rope (2) is wound outside the starting wheel (3) along the rope groove (3a), one end of the pull rope (2) is fixed with the starting wheel (3) and the other end of the pull rope (2) extends out of the housing (1), the hand-pulling type auxiliary starting device is characterized in that a limiting part (5) is arranged in the housing (1) and close to the position where the pull rope (2) extends out of the starting wheel (3), the limiting part (5) comprises a base plate (5a) and a limiting plate (5b) formed by, the base plate (5a) is fixed with the housing (1) through a fastener, and the pull rope (2) is limited between the bottom of the rope groove (3a) and the limiting plate (5 b).

2. A hand-pulling auxiliary starting device as in claim 1, wherein the outer circumference of the starting wheel (3) is a conical surface, the rope groove (3a) is a spiral groove, one end of the pull rope (2) is fixed at the end of the starting wheel (3) with smaller outer diameter, the other end of the pull rope (2) is led out from the end of the starting wheel (3) with larger outer diameter, and the limiting plate (5b) is disposed obliquely towards the starting wheel (3) relative to the base plate (5 a).

3. A hand-pulling auxiliary starting device as in claim 2, wherein the clearance between the limiting plate (5b) and the outer circumference of the starting wheel (3) is smaller than the outer diameter of the pull rope (2).

4. A hand-pull auxiliary starting device according to claim 1, 2 or 3, wherein the fastening member comprises a fastening screw (6) and a fastening nut (7), the end of the fastening screw (6) passes through the base plate (5a) from the closed side of the housing (1), and the fastening nut (7) is screwed on the end of the fastening screw (6) to fix the base plate (5 a).

5. A hand-pulled auxiliary starting device according to claim 1, 2 or 3, wherein the edge of the base plate (5a) and the edge of the limiting plate (5b) are provided with a reinforcing skirt (5c) formed by folding.

6. A hand-pulling auxiliary starting device as in claim 4, wherein the housing (1) has a concave part (1a) outside the housing (1), the shape of the inside of the concave part (1a) is the same as the head of the fastening screw (6), and the head of the fastening screw (6) is embedded inside the concave part (1 a).

7. A hand-pulled auxiliary starting device as in claim 6, wherein the bottom surface of the recess (1a) is a plane, and the base plate (5a) abuts against the bottom surface of the recess (1 a).