A doctor blade for a vehicle

Abstract

This utility model relates to the field of mechanical technology and discloses an automotive scraper. The utility model includes a scraper grip for hand operation, a replacement compartment within the grip, and a plurality of scraper blades stacked within the replacement compartment. Each scraper blade has two non-moving positions: one is a stacked state within the replacement compartment, and the other is a locked working state at the front end of the grip. A movement path exists between the two non-moving positions. This utility model improves the convenience of scraper blade replacement by storing replaceable scraper blades inside the grip. The scraper blades can be pushed sequentially to a designated position at the front end of the grip in the order they are stored and discharged. Then, a blade lock is tightened, and the locking pin at the lower end of the lock locks the blade positioning hole on the rear side of the scraper blade, thus fixing the scraper blade to the front end of the grip.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a scraper for automobiles. Background Technology

[0002] When cleaning the adhesive residue off a car's surface, a scraper is required. The scraper has a cutting edge on one side, and it needs to be replaced after wear. Traditionally, the scraper and its handle are fixed together with screws, and the replacement scraper blade is stored separately from the handle. This means that if a replacement is needed during operation, the scraper blade must be located and then disassembled and replaced using a screwdriver, which is inconvenient.

[0003] This proposal is put forward in order to improve and optimize the above-mentioned problems or shortcomings. Utility Model Content

[0004] This utility model provides a scraper for automobiles to solve the technical problems mentioned in the background art.

[0005] The present invention adopts the following technical solution to solve the above-mentioned technical problems: An automotive scraper, comprising: The scraper grip is for hand gripping and operation. The scraper grip has a replacement compartment, and several scraper blades are stacked in the replacement compartment. The scraper blade has two non-moving position states: one is a stacked state inside the replacement compartment, and the other is a working locked state at the front end of the scraper grip. There is a movement path between the two non-moving position states of the scraper blade. A blade lock is symmetrically arranged at the front end of the scraper grip. The blade lock is threadedly connected to the scraper grip and locks the scraper blade when tightened. The sliding blade changer is slidably mounted on the scraper grip.

[0006] Preferably, the scraper gripping part is provided with a hollow replacement chamber, and vertically arranged pressure plate guide rods are fixed at the four corners of the replacement chamber. The four corners of the blade pressure plate are provided with round holes and slide in cooperation with the pressure plate guide rods.

[0007] Preferably, the moving path includes a cavity one, a replacement chamber, a cavity two within the scraper grip, a channel connecting the replacement chamber and the cavity one, a channel connecting the replacement chamber and the cavity two, and a blade outlet connected to the cavity two.

[0008] Preferably, the height of the channel is greater than the thickness of the scraper blade and less than the thickness of two scraper blades.

[0009] Preferably, the sliding blade changer includes a push plate and a slider, wherein a through groove is provided below the scraper grip, the slider is slidably disposed in the groove, the push plate is integrally formed with the slider and the push plate is located inside the scraper grip, and the thickness of the push plate is the same as the thickness of the scraper blade.

[0010] Preferably, to prevent the slider from being accidentally operated when held, the sliding tool changer also includes a locking safety, which is threadedly connected to the slider, and when the locking safety is tightened relative to the slider, the top of the locking safety is firmly abutted against the inner top wall of the cavity.

[0011] Preferably, the scraper blade is also provided with two through blade positioning holes symmetrically on its rear side. When the sliding blade changer slides to the stroke limit position provided by the slide groove, the blade positioning hole on the scraper blade in the cavity two is coaxial with the blade locker. The lower end of the blade locker is fixedly provided with a locking pin. The lower end of the locking pin has a tapered structure, and the diameter of the lower end of the locking pin is smaller than the inner diameter of the blade positioning hole, while the diameter of the locking pin is larger than the inner diameter of the blade positioning hole.

[0012] The advantages and positive effects of this utility model are: The replaceable scraper blades are stored inside the scraper handle using a built-in storage method, which improves the convenience of replacing the scraper blades. The scraper blades can be pushed to the designated position at the front end of the scraper handle in the order of storage and discharge. Then, the blade locker is tightened, and the locking pin at the lower end of the blade locker locks the blade positioning hole on the rear side of the scraper blade. In this way, the scraper blade is fixed at the front end of the scraper handle, and the scraper handle can be used by hand. When replacing, first unlock the two blade lockers, pull out the scraper blade, and then unlock the locking safety. With the scraper handle in a horizontal position, push the push plate to the front end of the scraper handle. The front end of the push plate pushes the scraper blade at the bottom of the replacement compartment forward. Then, tighten the blade locker so that the locking pin is inserted downward into the blade positioning hole to achieve an interference fit lock. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0015] The following are labels in the attached diagram: 10. Scraper grip; 11. Blade locker; 12. Scraper blade; 13. Locking safety; 14. Slider; 15. Slide groove; 16. Push plate; 17. Sliding blade changer; 18. Replacement chamber; 19. Channel; 20. Blade outlet; 22. Locking pin; 23. Blade positioning hole; 24. Blade pressure plate; 25. Pressure plate guide rod; 26. Spring; 27. Cavity 1; 28. Cavity 2. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance. The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings: like Figure 1-4 As shown, the present invention provides an automotive scraper comprising: The scraper grip 10 is used for hand gripping and operation. The scraper grip 10 is provided with a replacement chamber 18, and a plurality of scraper blades 12 are stacked in the replacement chamber 18. The scraper blade 12 has two non-moving position states: one is a stacked state within the replacement compartment 18, and the other is a working locked state at the front end of the scraper grip 10 (e.g., ...). Figure 4 The scraper blade 12 has a movement path between its two non-moving position states; A blade locker 11 is symmetrically arranged at the front end of the scraper grip 10. The blade locker 11 is threadedly connected to the scraper grip 10 and locks the scraper blade 12 when tightened. A sliding blade changer 17 is slidably mounted on the scraper grip 10. During the movement of the sliding blade changer 17 from the initial position to the end position, its front end moves along the movement path and can push the scraper blade 12 in the replacement chamber 18 toward the front end of the scraper grip 10. Specifically, before replacing the scraper blade 12, it must be ensured that there is no scraper blade 12 at the front end of the scraper grip 10. If there is, the old scraper blade 12 needs to be pulled out while the blade locker 11 is in the unlocked state. Then, by pushing the sliding blade changer 17, the scraper blade 12 in the replacement chamber 18 is pushed forward to the designated position. Finally, the blade locker 11 is tightened to fix the scraper blade 12.

[0018] Preferably, the scraper gripping part 10 is provided with a hollow replacement chamber 18, and vertically arranged pressure plate guide rods 25 are fixed at the four corners of the replacement chamber 18. The blade pressure plate 24 is provided with round holes at the four corners and slides in cooperation with the pressure plate guide rods 25. Figure 3 (For example) The blade pressure plate 24 moves up and down under the action of the pressure plate guide rod 25, and a spring 26 is provided outside the pressure plate guide rod 25 and above the blade pressure plate 24. The spring 26 pushes the blade pressure plate 24 downward through elastic potential energy. Several scraper blades 12 are stacked up and down in the replacement chamber 18. The scraper blades 12 cannot move up and down under the pressure of the blade pressure plate 24.

[0019] Preferably, the moving path includes a cavity 27, a replacement chamber 18, a cavity 28 within the scraper grip 10, and a channel 19 connecting the replacement chamber 18 and the cavity 27, as well as a channel 19 connecting the replacement chamber 18 and the cavity 28, and a blade outlet 20 (e.g., in the cavity 28) communicating with the cavity 28. Figure 3 Specifically, after the sliding blade changer 17 slides, its front end moves forward along the movable connection, moving the scraper blade 12 located at the lowest side of the replacement chamber 18 toward the front end of the scraper grip 10, so that the scraper blade 12 passes through the channel 19 and enters the cavity 28. The front end of the scraper blade 12 passes through the blade outlet 20 and extends out of the front end of the scraper grip 10. The tail end of the scraper blade 12 is fastened by the blade locker 11.

[0020] Preferably, the height of the channel 19 is greater than the thickness of the scraper blade 12 and less than the thickness of two scraper blades 12, so that only a single scraper blade 12 is pushed during the movement of the sliding blade changer 17, and the remaining scraper blades 12 are in the replacement chamber 18 and are replaced sequentially from bottom to top.

[0021] Preferably, the sliding blade changer 17 includes a push plate 16 and a slider 14, wherein a through groove 15 is provided below the scraper grip 10, the slider 14 is slidably disposed in the groove 15, the push plate 16 is integrally formed with the slider 14 and the push plate 16 is located in the scraper grip 10, the thickness of the push plate 16 is the same as the thickness of the scraper blade 12, when the slider 14 slides towards the front end of the scraper grip 10, the front end of the push plate 16 passes through the channel 19 and pushes the scraper blade 12 forward.

[0022] Preferably, to prevent the slider 14 from being accidentally operated when held, the sliding tool changer 17 further includes a locking safety 13, which is threadedly connected to the slider 14. When the locking safety 13 is tightened relative to the slider 14, the top of the locking safety 13 is firmly abutted against the inner top wall of the cavity 27. Only when the locking safety 13 is loosened can the slider 14 slide along the slide groove 15.

[0023] Preferably, the scraper blade 12 is also symmetrically provided with two through blade positioning holes 23 on its rear side, and when the sliding blade changer 17 slides to the travel limit position provided by the slide groove 15, the blade positioning holes 23 on the scraper blade 12 in the cavity 28 are coaxial with the blade locker 11, and the lower end of the blade locker 11 is fixedly provided with a locking pin 22, the lower end of the locking pin 22 having a tapered structure (e.g., Figure 3 Furthermore, the lower end diameter of the locking pin 22 is smaller than the inner diameter of the blade positioning hole 23, while the diameter of the locking pin 22 is larger than the inner diameter of the blade positioning hole 23. When the blade locker 11 is tightened, the conical surface at the lower end of the locking pin 22 is pressed tightly into the blade positioning hole 23, effectively improving the fastening force of the blade locker 11 on the scraper blade 12.

[0024] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A scraper for automobiles, characterized in that: include; The scraper grip (10) is used for hand gripping and operation. The scraper grip (10) is provided with a replacement compartment (18), and a plurality of scraper blades (12) are stacked in the replacement compartment (18). The scraper blade (12) has two non-moving position states: one is a stacked state inside the replacement compartment (18), and the other is a working locked state at the front end of the scraper grip (10). There is a movement path between the two non-moving position states of the scraper blade (12). Blade locker (11) is symmetrically arranged at the front end of scraper grip (10). The blade locker (11) is threadedly connected to the scraper grip (10) and locks the scraper blade (12) when tightened. The sliding blade changer (17) is slidably mounted on the scraper grip (10).

2. The automotive scraper according to claim 1, characterized in that: The scraper grip (10) is provided with a hollow replacement compartment (18). The four corners of the replacement compartment (18) are fixed with vertically arranged pressure plate guide rods (25). The four corners of the blade pressure plate (24) are provided with round holes and slide in cooperation with the pressure plate guide rods (25).

3. The automotive scraper according to claim 1, characterized in that: The movement path includes a cavity one (27), a replacement chamber (18), a cavity two (28) in the scraper grip (10), a channel (19) connecting the replacement chamber (18) and the cavity one (27), a channel (19) connecting the replacement chamber (18) and the cavity two (28), and a blade outlet (20) connected to the cavity two (28).

4. The automotive scraper according to claim 3, characterized in that: The height of the channel (19) is greater than the thickness of the scraper blade (12) and less than the thickness of the two scraper blades (12).

5. The automotive scraper according to claim 3, characterized in that: The sliding blade changer (17) includes a push plate (16) and a slider (14), wherein a through groove (15) is provided below the scraper grip (10), the slider (14) is slidably disposed in the groove (15), the push plate (16) is integrally formed with the slider (14) and the push plate (16) is located in the scraper grip (10), and the thickness of the push plate (16) is the same as the thickness of the scraper blade (12).

6. The automotive scraper according to claim 5, characterized in that: The sliding tool changer (17) also includes a locking safety (13), which is threadedly connected to the slider (14), and when the locking safety (13) is tightened relative to the slider (14), the top of the locking safety (13) is firmly abutted against the inner top wall of the cavity (27).

7. The automotive scraper according to claim 5, characterized in that: The scraper blade (12) is also symmetrically provided with two through blade positioning holes (23) on its rear side. When the sliding blade changer (17) slides to the stroke limit position provided by the slide groove (15), the blade positioning hole (23) on the scraper blade (12) in the cavity (28) is coaxial with the blade locker (11). The lower end of the blade locker (11) is fixedly provided with a locking pin (22), and the lower end of the locking pin (22) is a tapered structure.

8. The automotive scraper according to claim 7, characterized in that: Furthermore, the lower end diameter of the locking pin (22) is smaller than the inner diameter of the blade positioning hole (23), and the diameter of the locking pin (22) is larger than the inner diameter of the blade positioning hole (23).

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