Snow clearer blade limit alarm device

Abstract

The utility model relates to the technical field of snow cleavers, in particular to a snow clearer blade limit alarm device which comprises a sensor, an installation shell, a movable shell arranged on the inner side of the installation shell, an adjusting unit arranged between the movable shell and the installation shell, the sensor installed at the upper end of the inner side of the movable shell, a protection plate A installed on the lower side of the movable shell, and a protection plate B installed on the upper side of the movable shell. The sensor is connected with the snow clearer through a wire, and a limiting contact unit is arranged between the movable shell and the sensor. By arranging the mounting shell, the moving shell, the adjusting unit, the protection plate A, the protection plate B and the limiting contact unit, the falling position of the snow clearer blade can be limited and alarmed, the blade is made to be located at the proper position on the upper side, and the service life of the blade is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of snowplows, in particular to a snowplow blade limit alarm device. Background Art

[0002] Snowplows are a type of equipment designed for winter road maintenance, mainly used to remove snow from roads, airports, parks and other areas. They can remove snow in different ways, including but not limited to shoveling, snow throwing and snow sweeping, to improve traffic safety, the efficiency of public facilities, and reduce the manpower cost of snow removal. There are many types of snowplows, including push snowplows, small snowplows, large snowplows, multi-purpose snowplows, etc., suitable for areas of different sizes and various snow removal tasks.

[0003] When the snowplow is in use, the blade of the snowplow is lowered to a suitable position, and then the blade is pushed by the power of the snowplow to clear the snow on the ground.

[0004] The blade of a snowplow cannot determine the descending position when it descends. If the blade is in close contact with the ground, the lower end of the blade will be excessively worn after the snowplow starts, which will affect the service life of the blade. Therefore, we propose a snowplow blade limit alarm device to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art that the shovel of a snowplow cannot determine the descending position when it descends. If the shovel is in too close contact with the ground when it descends, excessive wear will be caused to the lower end of the shovel after the snowplow starts, thus affecting the service life of the shovel. A limit alarm device for the shovel of a snowplow is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A snowplow blade limit alarm device is designed, comprising a sensor and a mounting shell, a movable shell is provided inside the mounting shell, an adjustment unit is provided between the movable shell and the mounting shell, the sensor is installed at the upper end of the inner side of the movable shell, a protective plate A is installed on the lower side of the movable shell, and a protective plate B is installed on the upper side of the movable shell, the sensor is connected to the snowplow through a wire, and a limit contact unit is provided between the movable shell and the sensor.

[0008] Preferably, the adjusting unit comprises two motors, and driven blocks are fixed on the left and right sides of the moving shell, two threaded holes are provided on the upper side of the driven block, a through hole A is provided on the upper side of the moving shell, a support plate is provided on the lower side of the driven block, the support plate is fixedly connected to the inner side of the mounting shell, two through holes B are provided on the upper side of the support plate, a screw rod is connected to the inner side of the threaded hole through a threaded transmission, the screw rod can be rotated on the inner side of the through hole A and the inner side of the through hole B, the two screw rods are connected through a sprocket chain meshing transmission, the motor shaft end is fixedly connected to the upper end of the screw rod, the motor is installed on the upper side of the mounting shell, and the motor is connected to the snowplow through a wire.

[0009] By adopting the above scheme, the position of the movable shell on the mounting shell can be automatically adjusted, so that the movable shell can move with the sensor and the limit contact unit described later, so that the limit contact unit and the sensor can adjust their own positions according to the situation, which can not only play the role of limit alarm but also improve the service life of the device.

[0010] Preferably, two guide grooves are provided at the front and rear ends of the inner side of the mounting shell, and dovetail grooves are provided at the left and right ends of the inner side of the mounting shell. A guide block A slides inside the guide groove, and a guide block B slides inside the dovetail groove. The guide block A is fixedly connected to the movable shell, and the guide block B is fixedly connected to the driven block.

[0011] By adopting the above solution, the A guide block plays a guiding and limiting role in the movement of the moving shell, and the B guide block plays a guiding role in the movement of the driven block, making the operation of the device more stable.

[0012] Preferably, two reinforcing plates are fixed to the lower side of the support plate, and the reinforcing plates are fixedly connected to the inner side of the mounting shell.

[0013] By adopting the above solution, the connection between the plate to the support plate and the mounting shell is strengthened, making the support plate more stable.

[0014] Preferably, the limiting contact unit includes a spring, a C through hole is provided on the upper side of the A protective plate, a movable shaft is provided on the inner side of the spring, the movable shaft can slide on the inner side of the C through hole, a connecting plate is provided on the upper side of the A protective plate, a partition plate is provided on the upper side of the connecting plate, a connecting hole is provided on the upper side of the connecting plate, the movable shaft and the inner side of the connecting hole are fixedly connected, a D through hole is provided on the upper side of the partition plate, the movable shaft can slide on the inner side of the D through hole, the connecting plate can slide on the inner side of the movable shell, the partition plate is fixedly connected to the inner side of the movable shell, the spring is located between the connecting plate and the partition plate, an A contact block is provided on the lower side of the A protective plate, a B contact block is provided on the upper side of the B protective plate, and the A contact block and the B contact block are fixedly connected to the movable shaft.

[0015] By adopting the above solution, when the snowplow blade is about to touch the ground, the limit contact unit contacts the sensor, and the sensor transmits the signal to the operating room of the snowplow, so that the snowplow stops the movement of the blade and sounds an alarm, thereby avoiding contact between the blade and the ground and increasing the service life of the blade.

[0016] Preferably, a buffer block is fixed on the upper side of the B contact block.

[0017] By adopting the above solution, the buffer block is brought into contact with the sensor, thereby reducing the impact force of the limit contact unit on the sensor and increasing the service life of the sensor.

[0018] The utility model provides a snow shovel limit alarm device, which has the following beneficial effects:

[0019] 1. By setting the installation shell, the movable shell, the adjustment unit, the A protective plate, the B protective plate, and the limit contact unit, the limit alarm can be set for the descending position of the snow shovel, so that the shovel is located at a suitable position on the upper side of the ground, thereby increasing the service life of the shovel.

[0020] 2. By setting the adjustment unit, the position of the device can be adjusted to realize automatic adjustment of the position of the limit alarm device, so that the shovel can be located in different positions. At the same time, when the device realizes the function of limit alarm, it can also protect it, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front side three-dimensional structural diagram of a snowplow blade limit alarm device proposed by the utility model;

[0022] Figure 2 It is a right side cutaway three-dimensional structural schematic diagram of a snowplow blade limit alarm device proposed by the utility model;

[0023] Figure 3 The utility model proposed Figure 2 A partial enlarged schematic diagram of the three-dimensional structure of the middle A area;

[0024] Figure 4 The utility model proposed Figure 2 A schematic diagram of the partially enlarged three-dimensional structure of the middle B area;

[0025] Figure 5 It is a front side cutaway stereoscopic structural schematic diagram of a snow shovel limit alarm device proposed by the utility model;

[0026] Figure 6 The utility model proposed Figure 5 A schematic diagram of the partially enlarged three-dimensional structure of the middle C area;

[0027] Figure 7The utility model proposed Figure 5 Schematic diagram of the partially enlarged three-dimensional structure of area D in the middle.

[0028] In the figure: 1. sensor; 2. mounting shell; 3. moving shell; 4. adjusting unit; 41. motor; 42. driven block; 43. supporting plate; 44. screw; 45. guide block A; 46. guide block B; 47. reinforcing plate; 5. protective plate A; 6. protective plate B; 7. limit contact unit; 71. spring; 72. moving shaft; 73. connecting plate; 74. partition plate; 75. contact block A; 76. contact block B; 77. buffer block. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the present invention will be clarified and fully described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-7 A snowplow blade limit alarm device includes a sensor 1 and a mounting shell 2. A movable shell 3 is provided inside the mounting shell 2. The sensor 1 is mounted on the upper inner side of the movable shell 3. The sensor 1 is connected to the snowplow through a wire. A protective plate A 5 is mounted on the lower side of the movable shell 3 and a protective plate B 6 is mounted on the upper side of the movable shell 3.

[0031] An adjustment unit 4 is provided between the moving shell 3 and the mounting shell 2. The adjustment unit 4 includes two motors 41. Two guide grooves are provided at both ends of the inner side of the mounting shell 2. A guide block 45 slides inside the guide groove. The A guide block 45 is fixedly connected to the moving shell 3. The A guide block 45 guides and limits the movement of the moving shell 3, making the operation of the device more stable. Follower blocks 42 are fixed on both sides of the moving shell 3. Dovetail grooves are provided at both ends of the inner side of the mounting shell 2. A B guide block 46 slides inside the dovetail groove. The B guide block 4 6 is fixedly connected to the driven block 42, and the B guide block 46 guides the movement of the driven block 42, making the operation of the device more stable. Two threaded holes are provided on the upper side of the driven block 42, and the inner sides of the threaded holes are connected with screw rods 44 through threaded transmission. The two screw rods 44 are connected through sprocket chain meshing transmission. A through hole A is provided on the upper side of the moving shell 3, and a support plate 43 is provided on the lower side of the driven block 42. The support plate 43 is fixedly connected to the inner side of the mounting shell 2. Two reinforcing plates 47 are fixed on the lower side of the support plate 43, and the reinforcing plates 47 are connected to the inner side of the mounting shell 2. The support plate 43 and the mounting shell 2 are fixedly connected, and the connection between the reinforcing plate 47 and the mounting shell 2 makes the support plate 43 more stable. Two B through holes are provided on the upper side of the support plate 43, and the screw 44 can rotate inside the A through hole and the B through hole. The shaft end of the motor 41 is fixedly connected to the upper end of the screw 44, and the motor 41 is installed on the upper side of the mounting shell 2 and the motor 41 is connected to the snowplow through a wire. The screws 44 in a group of two will move together through the sprocket chain, and the motor 41 is used as the power to automatically rotate the two screws 44. As the screws The rotation of 44 allows the driven block 42 to move up and down with the movable shell 3, and the movable shell 3 will move with the limit contact unit 7 mentioned below. When the snowplow shovel moves, the limit contact unit 7 is moved down, so that the lower end of the limit contact unit 7 is lower than the lower end of the snowplow shovel. When the snowplow shovel does not move, the limit contact unit 7 is moved up, so that the limit contact unit 7 is installed on the shell 2 to protect it, so that the device can realize the function of limiting the snowplow shovel while increasing the service life of the device.

[0032] A limit contact unit 7 is provided between the moving shell 3 and the sensor 1, and the limit contact unit 7 includes a spring 71, a C through hole is provided on the upper side of the A protective plate 5, a moving shaft 72 is provided on the inner side of the spring 71, and the moving shaft 72 can slide on the inner side of the C through hole, a connecting plate 73 is provided on the upper side of the A protective plate 5, and the connecting plate 73 can slide on the inner side of the moving shell 3, a partition plate 74 is provided on the upper side of the connecting plate 73, and the partition plate 74 is fixedly connected to the inner side of the moving shell 3, the spring 71 is located between the connecting plate 73 and the partition plate 74, a connecting hole is provided on the upper side of the connecting plate 73, and the moving shaft 72 is fixedly connected to the inner side of the connecting hole, a D through hole is provided on the upper side of the partition plate 74, and the moving shaft 72 can slide on the inner side of the D through hole, an A contact block 75 is provided on the lower side of the A protective plate 5, a B contact block 76 is provided on the upper side of the B protective plate 6, and the B contact block 7 6 is fixed with a buffer block 77. When the device moves, the buffer block 77 is in contact with the sensor 1, reducing the impact force of the limit contact unit 7 on the sensor 1 and improving the service life of the sensor 1. The A contact block 75 and the B contact block 76 are fixedly connected to the movable shaft 72. When the movable shell 3 moves downward with the limit contact unit 7, as the snowplow blade descends, the A contact block 75 first contacts the ground, and the A contact block 75 and the movable shaft 72 move upward with the B contact block 76, and finally the buffer block 77 is in contact with the sensor 1. At this time, the snowplow blade is located at a certain height above the ground, and the sensor 1 transmits a signal to the operating room of the snowplow to stop the movement of the blade and alarm, thereby avoiding the contact between the blade and the ground and improving the service life of the blade.

[0033] How it works:

[0034] The mounting shell 2 is mounted on the side of the shovel facing the snowplow. When the shovel is adjusted, the adjusting unit 4 moves with the limit contact unit 7 through the movable shell 3, so that the lower end of the limit contact unit 7 is lower than the lower end of the shovel. The limit contact unit 7 and the sensor 1 provide a limit alarm for the shovel. When the shovel is adjusted into place, the adjusting unit 4 brings the limit contact unit 7 into the mounting shell 2 to protect it.

[0035] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position; be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A snow shovel blade limit alarm device, comprising a sensor (1) and a mounting shell (2), characterized in that: A movable shell (3) is provided inside the mounting shell (2), an adjustment unit (4) is provided between the movable shell (3) and the mounting shell (2), the sensor (1) is installed at the upper end of the inner side of the movable shell (3), an A protection plate (5) is installed on the lower side of the movable shell (3), and a B protection plate (6) is installed on the upper side of the movable shell (3), the sensor (1) is connected to the snowplow through a wire, and a limit contact unit (7) is provided between the movable shell (3) and the sensor (1).

2. A snowplow blade limit alarm device according to claim 1, characterized in that: The adjustment unit (4) comprises two motors (41), and driven blocks (42) are fixed on both left and right sides of the movable shell (3). Two threaded holes are arranged on the upper side of the driven block (42), and an A through hole is arranged on the upper side of the movable shell (3). A support plate (43) is arranged on the lower side of the driven block (42), and the support plate (43) is fixedly connected to the inner side of the mounting shell (2). Two B through holes are arranged on the upper side of the support plate (43). A screw rod (44) is connected to the inner side of the threaded hole through threaded transmission. The screw rod (44) can rotate on the inner side of the A through hole and the inner side of the B through hole. The two screw rods (44) are connected through sprocket chain meshing transmission. The shaft end of the motor (41) is fixedly connected to the upper end of the screw rod (44). The motor (41) is mounted on the upper side of the mounting shell (2) and the motor (41) is connected to the snowplow through a wire.

3. A snowplow blade limit alarm device according to claim 2, characterized in that: Two guide grooves are provided at both the front and rear ends of the inner side of the mounting shell (2), and dovetail grooves are provided at both the left and right ends of the inner side of the mounting shell (2). An A guide block (45) slides inside the guide groove, and a B guide block (46) slides inside the dovetail groove. The A guide block (45) is fixedly connected to the movable shell (3), and the B guide block (46) is fixedly connected to the driven block (42).

4. The snowplow blade limit alarm device according to claim 2, characterized in that: Two reinforcing plates (47) are fixed to the lower side of the support plate (43), and the reinforcing plates (47) are fixedly connected to the inner side of the mounting shell (2).

5. The snow shovel limit alarm device according to claim 1, characterized in that: The position-limiting contact unit (7) comprises a spring (71), a C through hole is provided on the upper side of the A protective plate (5), a movable shaft (72) is provided on the inner side of the spring (71), and the movable shaft (72) can slide on the inner side of the C through hole, a connecting plate (73) is provided on the upper side of the A protective plate (5), a partition plate (74) is provided on the upper side of the connecting plate (73), a connecting hole is provided on the upper side of the connecting plate (73), the movable shaft (72) and the inner side of the connecting hole are fixedly connected, and a D through hole is provided on the upper side of the partition plate (74). The movable shaft (72) can slide inside the D through hole, the connecting plate (73) can slide inside the movable shell (3), the partition plate (74) is fixedly connected to the inner side of the movable shell (3), the spring (71) is located between the connecting plate (73) and the partition plate (74), the A contact block (75) is provided on the lower side of the A protective plate (5), and the B contact block (76) is provided on the upper side of the B protective plate (6), and the A contact block (75) and the B contact block (76) are fixedly connected to the movable shaft (72).

6. A snowplow blade limit alarm device according to claim 5, characterized in that: A buffer block (77) is fixed on the upper side of the B contact block (76).

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