Angle adjusting mechanism for snow throwing barrel of snow sweeper
By using sector gears and positioning gear blocks in the angle adjustment mechanism of the snowplow drum, the problem of unstable positioning is solved, a more compact design and stable angle adjustment are achieved, and the convenience and stability of operation are improved. sex.
Patent Information
- Application Number
- CN202323541138.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-25
AI Technical Summary
When adjusting the angle adjustment mechanism of the existing snowplow machine snow drum, the lack of a positioning mechanism is caused by unstable positioning, the driving wheel occupies a large volume and the operating box is large.
Adopt a structure including an operating box, an operating handle, an actuator, an driven wheel and a pull rope. The driven wheel is cooperated with the sector gear of the driven gear to drive the driven wheel to rotate, and the positioning of the driving wheel is ensured by positioning the tooth block and tightening the spring. , combined with the coordination of the jammed shell and the positioning cam, a more stable structure is achieved.
It effectively saves the volume of the operating box, ensures the stable positioning of the angle adjustment of the snow-throwing barrel, avoids tooth removal of the rope, and improves the convenience and stability of operation.
Smart Images
Figure CN222161073U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of snow sweepers, in particular to an angle adjustment mechanism for a snow throwing bucket of a snow sweeper. Background Art
[0002] In the colder north, snowplows are usually needed to clear the snow from the roads after it snows in winter. Currently, common snowplows are powered or unpowered push-type. When using a snowplow to clear snow, there is no need to use salt or snow-melting agents. It can adapt to different road conditions and will not damage the markings or the road surface.
[0003] The snow throwing bucket in the snow sweeper is mainly used to throw the cleared snow out of the roadside through the snow throwing bucket. Based on this, the snow throwing bucket is set as an angle-adjustable structure. By adjusting the angle of the snow throwing bucket outlet, it can adapt to different road conditions. For example, the Chinese patent with application number 202321337207.9 discloses a snow throwing bucket angle adjustment mechanism, including a snow throwing bucket assembly, an operating assembly, a fixing assembly, and a deflection part; the snow throwing bucket assembly is mounted on the deflection part; at least part of the deflection part is rotatably arranged in the fixing assembly; the operating assembly is arranged away from the snow throwing bucket assembly; a pull rope is wound around the deflection part, and the other end of the pull rope extends and is connected to the operating assembly; the operating assembly includes a driving part for pulling the pull rope; the pull rope is pulled to drive the deflection part and the snow throwing bucket assembly to rotate, so as to achieve the angle adjustment of the snow throwing bucket assembly. Specifically, the operating assembly includes: an operating handle, a driving wheel connected to the operating handle, and a driven wheel meshing with the driving wheel, wherein two first winding grooves are arranged on the driven wheel, and the first ends of the two pull ropes are respectively fixedly wound in different first winding grooves.
[0004] The above-mentioned snow bucket angle adjustment mechanism adopts an operating assembly, a pull rope and a cooperation with a deflection part. The pull rope is directly wound around the deflection part. Pulling the pull rope drives the deflection part and the snow bucket assembly to rotate to achieve the angle adjustment of the snow bucket assembly. Although the structure is simpler than the traditional snow bucket angle adjustment mechanism, its driving wheel occupies a large volume, making the operating box larger. In addition, the above-mentioned mechanism lacks a positioning mechanism for the driven gear. After the driven wheel rotates into place, it only relies on the meshing of the gears to ensure its positioning, and the positioning is not stable enough. Summary of the invention
[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide an angle adjustment mechanism for the snow bucket of a snowplow, so as to solve the problem that when adjusting the angle, after the operating handle drives the driven wheel to rotate into place, the driven wheel has no other positioning mechanism to position it, resulting in unstable positioning.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A snow bucket angle adjustment mechanism for a snowplow comprises an operating box, an operating handle, a driving wheel, a driven wheel and two pull ropes, the operating handle being rotatably mounted on the outside of the operating box and connected to the driving wheel, the driving wheel and the driven wheel being placed in the operating box, a driven gear integrally formed therewith being provided in the middle of the driven wheel; two winding grooves are provided at intervals on the outer edge of the driven wheel, two pull ropes are provided, the two pull ropes are arranged up and down, one end of the pull rope is connected to the driven wheel and is wound in one of the winding grooves, and the other end is used for winding and connecting with the deflection part at the lower end of the snow throwing bucket; the driving wheel extends outward on a side close to the driven gear to form a sector-shaped gear tooth meshing with the driven gear, and arc-shaped gear teeth extending outward are provided on the driving wheel on the opposite side of the sector-shaped gear teeth; a positioning tooth block meshing with the arc-shaped gear teeth is provided in the operating box, and a tightening spring connected to the positioning tooth block is provided on the positioning tooth block, and the end thereof abuts against the side wall of the operating box. In this way, when the angle of the snow throwing bucket needs to be adjusted, it is only necessary to adjust the angle of the deflection part at the lower end of the snow throwing bucket. Specifically, by rotating the operating handle with external force, the driving wheel connected to the operating handle will rotate together. Since the fan-shaped gear teeth of the driving wheel are meshed with the driven gear on the driven wheel, the driven wheel can be driven to rotate accordingly. When the operating handle drives the driving wheel to rotate clockwise, the driven wheel rotates counterclockwise, and the pull rope at the upper end is tightened and wound around the driven wheel, and the pull rope drives the deflection part connected to it at the other end to rotate; when the operating handle is rotated counterclockwise, the driven wheel drives the other pull rope to rotate in the opposite direction, thereby pulling the deflection part to rotate in the opposite direction. The fan-shaped gear on the driving wheel is fan-shaped as a whole and is integrally formed with the driving wheel. It can not only realize power transmission with the driven gear, but also save more space than conventional gears with the same transmission ratio, and can effectively lock the volume of the pin operating box. The positioning tooth block arranged on the other side of the driving wheel is meshed with the driving wheel at the same time, and is connected with a tightening spring, so that in application, a lateral tightening force can be applied to the driving wheel, so that when there is no external force applied to the operating handle and the driving wheel no longer rotates, the driving wheel is tightened to prevent the driving wheel from rotating, so that the deflection part at the other end of the pull rope is also positioned, and under the action of external force, the spring can be squeezed and deformed, and will not affect the rotation of the driving wheel. In addition, the length that the pull rope can be wound is limited, so that after the driven wheel rotates to a certain angle, the pull rope can no longer be wound, thereby preventing the sector teeth from being disengaged from the driven gear and maintaining meshing.
[0008] Furthermore, a positioning cam with limiting teeth arranged in the circumference is provided on the driving wheel, and the positioning cam is formed integrally with the driving wheel; a circular mounting cover is provided at the lower end of the operating handle, and a card housing matching with the positioning cam is provided on the side of the mounting cover facing the driving wheel; a circular hole is provided on the operating box for the card housing to extend into the operating box. In this way, the driving wheel and the operating handle are initially positioned through the cooperation of the card housing and the positioning cam, which can effectively ensure that when the operating handle rotates, the driving wheel rotates together.
[0009] Furthermore, a through hole is provided in the middle of the positioning cam, and an assembly hole corresponding to the through hole is provided in the middle of the mounting cover. The mounting cover is rotatably mounted on the operating box after a mounting shaft passes through the through hole and the assembly hole. In this way, the positioning cam is sleeved on the mounting shaft, and the middle of the mounting cover is also penetrated on the mounting shaft, which can ensure that the operating handle and the driving wheel can rotate under the action of external force.
[0010] Furthermore, a plurality of internal threaded barrels are provided on the driving wheel and the outer circumference of the positioning cam, and a plurality of mounting holes corresponding to the internal threaded barrels are provided on the mounting cover, and the mounting cover is fixed to the driving wheel after the screw rod cooperates with the internal threaded barrel. In this way, in addition to the cooperation and positioning of the card shell and the positioning cam, the driving wheel and the mounting cover are also cooperated and positioned by the bolt and the threaded barrel, and the connection structure is more stable.
[0011] Furthermore, a notch corresponding to the winding groove is provided on the driven wheel, and two connection heads corresponding to the pull ropes are provided in the notch. In this way, both pull ropes can be connected to the driven wheel through the connection heads on the driven wheel, so that after the driven wheel rotates, the pull rope can pull the deflection part of the snow throwing bucket to rotate, thereby realizing the angle adjustment of the snow throwing bucket.
[0012] Furthermore, the operation box is formed by connecting a lower box body and an upper box body, a handrail slot is provided at the lower end of the lower box body, a circular frame for assembling a driven wheel is provided inside the lower box body, and a convex shaft for assembling the driven wheel is provided at the center of the circular frame. In this way, the driven wheel and the operation box are assembled through the convex shaft and can rotate around the convex shaft, and the circular frame can facilitate the assembly of the driven wheel.
[0013] Furthermore, a circular boss integrally formed with the convex shaft is provided, a positioning ring matched with the circular boss is provided on the side of the driven wheel adjacent to the lower box body, and two grooves for the pull rope to pass through are provided on the circular frame body. In this way, the driven wheel cooperates with the circular boss, and the assembly is more stable.
[0014] Furthermore, two grooves for the pull rope to pass through are provided on the circular frame of the lower box body, and the groove is provided on the side close to the driving wheel. A guide pin is provided on both the upper and lower sides of the mounting shaft. The pull rope passes through the driven wheel and the groove in sequence, passes through the guide pin, and then passes out of the operating box. In this way, after the pull rope is wound around the driven wheel, it passes through the groove on the circular frame, and then is wound around the guide pin, and then passes out of the operating box horizontally. The provided guide pin can guide the pull rope, so that the pull rope is obliquely guided out, and then passes through the guide pin. The provided guide pin can not only guide the pull rope, but also can slide and rub against the outer wall of the guide pin when the pull rope is wound, so as to avoid wear caused by direct friction between the pull rope and the groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is an axial side view of the snow bucket angle adjustment mechanism of the snow sweeper in the embodiment;
[0016] Figure 2 It is an axonometric view of the snow bucket angle adjustment mechanism of the snow sweeper in the embodiment when viewed from the bottom;
[0017] Figure 3 It is a structural schematic diagram of the snow bucket angle adjustment mechanism of the snow sweeper after the upper box body is removed in the embodiment;
[0018] Figure 4 Schematic diagram of the structure of the snow bucket angle adjustment mechanism of the snow sweeper after the operation box is removed in the embodiment;
[0019] Figure 5 Schematic diagram of the inner structure of the lower box body in the embodiment. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0021] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] like Figure 1-Figure 5As shown, the present embodiment provides a snow bucket angle adjustment mechanism for a snow sweeper, comprising an operating box 1, an operating handle 2, a driving wheel 3, a driven wheel 4 and two pull ropes 5. The operating handle 2 can be rotatably mounted on the outside of the operating box 1 and connected to the driving wheel 3. The driving wheel 3 and the driven wheel 4 are placed in the operating box 1, and a driven gear 41 integrally formed therewith is provided in the middle of the driven wheel 4; two winding grooves 42 are provided at intervals on the outer edge of the driven wheel 4, and two pull ropes 5 are provided, and the two pull ropes 5 are arranged up and down (that is, one pull rope is wound in the winding groove 42 from above and fixedly connected to the driven wheel 4, and the other pull rope is wound in the other winding groove 42 from below and fixed to the driven wheel 4, so that when the operating handle 2 drives the driven wheel 4 to rotate clockwise, the pull rope 5 located at the top is tightened and continues to be wound in the winding groove 42, driving the deflection part of the other end of the pull rope 5 to rotate; when the operating handle 2 drives the driven wheel 4 to rotate counterclockwise, the pull rope 5 below is tightened, and after being wound in the winding groove 42, the deflection part of the other end of the pull rope 5 is driven to rotate in the opposite direction). One end of the pull rope 5 is connected to the driven wheel 4 and is wound in one of the winding grooves 42, and the other end is used to be wound and connected with the deflection part of the lower end of the snow throwing bucket; the driving wheel 3 extends outward on the side close to the driven gear 41 to form a sector gear 31 meshing with the driven gear 41, and on the opposite side of the sector gear 31, the driving wheel 3 is provided with an arc gear 32 extending outward; a positioning tooth block 6 meshing with the arc gear 32 is provided in the operating box 1, and a tightening spring 7 connected to the positioning tooth block 6 is provided, and the end thereof is abutted against the side wall of the operating box 1. In this way, when the angle of the snow throwing bucket needs to be adjusted, it is only necessary to adjust the angle of the deflection part at the lower end of the snow throwing bucket. Specifically, by rotating the operating handle 2 with an external force, the driving wheel 3 connected to the operating handle 2 will rotate together. Since the fan-shaped gear teeth 31 of the driving wheel 3 are meshed with the driven gear 41 on the driven wheel 4, the driven wheel 4 can be driven to rotate accordingly. When the operating handle 2 drives the driving wheel 3 to rotate clockwise, the driven wheel 4 rotates counterclockwise, and the pull rope 5 at the upper end will be tightened and wound around the driven wheel 4, and the pull rope 5 drives the deflection part connected to it at the other end to rotate; when the operating handle 2 is rotated counterclockwise, the driven wheel 4 drives the other pull rope 5 to rotate in the opposite direction, thereby pulling the deflection part to rotate in the opposite direction. The fan-shaped gear on the driving wheel 3 is fan-shaped as a whole, and is integrally formed with the driving wheel 3, which can realize power transmission with the driven gear 41, and the fan-shaped gear teeth 31 are more space-saving than conventional gears with the same transmission ratio, and can effectively lock the volume of the pin operation box 1. The positioning tooth block 6 arranged on the other side of the driving wheel 3 is meshed with the driving wheel 3 at the same time, and is connected with a clamping spring 7, so that in application, a lateral clamping force can be applied to the driving wheel 3, so that when there is no external force applied to the operating handle 2 and the driving wheel 3 no longer rotates, the driving wheel 3 is clamped to prevent the driving wheel 3 from rotating, so that the deflection part at the other end of the pull rope 5 is also positioned, and under the action of external force, the spring can be squeezed and deformed, and will not affect the rotation of the driving wheel 3.In addition, the length of the pull rope 5 that can be wound is limited, so after the driven wheel 4 rotates to a certain angle, the pull rope 5 can no longer be wound, thereby preventing the sector gear teeth from being disengaged from the driven gear 41 and maintaining engagement.
[0023] Furthermore, a positioning cam 33 with limiting teeth arranged in the circumference is provided on the driving wheel 3, and the positioning cam 33 is formed integrally with the driving wheel 3; a circular mounting cover 21 is provided at the lower end of the operating handle 2, and a card housing matched with the positioning cam 33 is provided on the side of the mounting cover 21 facing the driving wheel 3; a circular hole is provided on the operating box 1 for the card housing to extend into the operating box 1. In this way, the driving wheel 3 and the operating handle 2 are initially positioned by the matching of the card housing and the positioning cam 33, which can effectively ensure that when the operating handle 2 rotates, the driving wheel 3 rotates together.
[0024] Furthermore, a through hole is provided in the middle of the positioning cam 33, and an assembly hole corresponding to the through hole is provided in the middle of the mounting cover 21. The mounting cover 21 is rotatably mounted on the operating box 1 after a mounting shaft 114 passes through the through hole and the assembly hole. In this way, the positioning cam 33 is sleeved on the mounting shaft 114, and the middle of the mounting cover 21 is also penetrated on the mounting shaft 114, which can ensure that the operating handle 2 and the driving wheel 3 can rotate under the action of external force. Further, a plurality of internal threaded barrels 34 are provided on the driving wheel 3 and the outer circumference of the positioning cam 33, and a plurality of mounting holes corresponding to the internal threaded barrels 34 are provided on the mounting cover 21. The mounting cover 21 is fixed to the driving wheel 3 after the screw rod cooperates with the internal threaded barrel 34. In this way, in addition to the cooperation and positioning of the housing and the positioning cam 33, the driving wheel 3 and the mounting cover 21 are also positioned by the cooperation of the bolt and the threaded barrel, and the connection structure is more stable.
[0025] Furthermore, a notch 43 corresponding to the winding groove 42 is provided on the driven wheel 4, and two connection heads corresponding to the pull ropes 5 are provided in the notch 43. In this way, both pull ropes 5 can be connected to the driven wheel 4 through the connection heads on the driven wheel 4, so that after the driven wheel 4 rotates, the pull ropes 5 can pull the deflection part of the snow throwing bucket to rotate, thereby realizing the angle adjustment of the snow throwing bucket.
[0026] Furthermore, the operation box 1 is formed by connecting a lower box body 11 and an upper box body 12, a handrail slot 111 is provided at the lower end of the lower box body 11, a circular frame 112 for assembling the driven wheel 4 is provided inside the lower box body 11, and a convex shaft 113 for assembling the driven wheel 4 is provided at the center of the circular frame 112. In this way, the driven wheel 4 and the operation box 1 are assembled through the convex shaft and can rotate around the convex shaft, and the circular frame 112 can facilitate the assembly of the driven wheel 4.
[0027] Furthermore, a circular boss 114 is formed integrally with the convex shaft 113, and a positioning ring matched with the circular boss 114 is provided on the side of the driven wheel 4 adjacent to the lower box body 11. In this way, the driven wheel 4 cooperates with the circular boss, and the assembly is more stable.
[0028] Specifically, the mounting shaft 114 is arranged beside the circular frame 112 of the lower box body 11, and an internal thread hole is arranged in the middle of the mounting shaft 114, and a bolt threadedly matched with the internal thread hole is arranged in the middle of the mounting cover 21. The bolt on the mounting cover and the mounting shaft together form an axis around which the mounting cover and the driving wheel rotate.
[0029] Two grooves 113 for the pull rope 5 to pass through are provided on the circular frame 112 of the lower box body. The groove 113 is provided on the side close to the driving wheel 3. A guide pin 115 is provided on both the upper and lower sides of the mounting shaft 114. The pull rope 5 passes through the driven wheel 4 and the groove 113 in sequence, passes through the guide pin 115, and then passes out of the operation box. In order to facilitate the guide of the pull rope and increase the strength of the lower box body, a plurality of reinforcing ribs are provided at the right side of the lower box body corresponding to the driving wheel. A guide groove is provided in the middle of each reinforcing rib. After the pull rope passes through the guide pin 115, it passes through each guide groove in sequence and passes out of the operation box 1.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.
Claims
1. A snow bucket angle adjustment mechanism for a snow sweeper, comprising an operating box, an operating handle, a driving wheel, a driven wheel and two pull ropes, wherein the operating handle can be rotatably mounted on the outside of the operating box and connected to the driving wheel, the driving wheel and the driven wheel are placed in the operating box, and a driven gear integrally formed therewith is provided in the middle of the driven wheel; two winding grooves are provided at intervals on the outer edge of the driven wheel, and two pull ropes are provided, and the two pull ropes are arranged up and down, one end of the pull rope is connected to the driven wheel and is wound in one of the winding grooves, and the other end is used to be wound and connected with the deflection part at the lower end of the snow bucket; characterized in that The driving wheel extends outward on one side close to the driven gear to form a sector-shaped gear tooth meshing with the driven gear, and arc-shaped gear teeth extending outward are provided on the driving wheel on the opposite side of the sector-shaped gear teeth; a positioning tooth block meshing with the arc-shaped gear teeth is provided in the operating box, and a tightening spring connected to the positioning tooth block is provided on the positioning tooth block, and the end of the spring abuts against the side wall of the operating box.
2. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 1, characterized in that: A positioning cam with limiting teeth arranged circumferentially is also provided on the driving wheel, and the positioning cam is integrally formed with the driving wheel; a circular mounting cover is provided at the lower end of the operating handle, and a card shell matching with the positioning cam is provided on the side of the mounting cover facing the driving wheel; a circular hole is provided on the operating box for the card shell to extend into the operating box.
3. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 2, characterized in that: A through hole is also arranged in the middle of the positioning cam, and an assembly hole corresponding to the through hole is arranged in the middle of the installation cover. The installation cover is rotatably installed on the operation box after an installation shaft passes through the through hole and the assembly hole.
4. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 2, characterized in that: A plurality of internal threaded barrels are arranged on the driving wheel and the outer circumference of the positioning cam, and a plurality of mounting holes corresponding to the internal threaded barrels are arranged on the mounting cover. The mounting cover is fixed to the driving wheel after being matched with the internal threaded barrels through a screw rod.
5. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 1, 2, 3 or 4, characterized in that: A notch corresponding to the winding groove is arranged on the driven wheel, and two wiring heads corresponding to the pull ropes are arranged in the notch.
6. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 5, characterized in that: The operation box is formed by connecting a lower box body and an upper box body. An armrest slot is arranged at the lower end of the lower box body, a circular frame for assembling a driven wheel is arranged inside the lower box body, and a convex shaft for assembling a driven wheel is arranged at the center of the circular frame.
7. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 6, characterized in that: A circular boss integrally formed therewith is arranged on the convex shaft, and a positioning ring matched with the circular boss is arranged on one side of the driven wheel adjacent to the lower box body.
8. The snow bucket angle adjustment mechanism for a snow sweeper according to claim 7, characterized in that: Two grooves for the pull rope to pass through are arranged on the circular frame of the lower box body. The groove is arranged on the side close to the driving wheel. A guide pin is arranged on the upper and lower sides of the installation shaft. The pull rope passes around the driven wheel and the groove in turn, passes through the guide pin, and then passes out of the operating box.