Variable-speed adjusting wrench and machining die thereof

Abstract

The utility model discloses a variable-speed adjusting wrench and a machining die thereof. The variable-speed adjusting wrench comprises a connecting part and a clamping part, one end of the first pressing part is fixedly connected with one end of the connecting part; one end of the second pressing part is fixedly connected with the outer side of one end of the first pressing part, and the first pressing part and the second pressing part are located on the same side of the connecting part and arranged in the same direction, so that a gap is formed between the first pressing part and the second pressing part; an anti-skid structure is arranged on the surface of the first pressing part or the second pressing part. A movable mold core of the machining mold is provided with a female mold groove matched with the variable-speed adjusting wrench, and a fixed mold core is provided with a matched male mold corresponding to the female mold groove so that a cavity matched with the variable-speed adjusting wrench can be formed through mold closing. The variable-speed adjusting wrench has an anti-skid function, partitions can be conveniently and rapidly confirmed, and the riding safety can be guaranteed by timely speed regulation. In addition, the machining die for forming the variable-speed adjusting wrench has the advantages of being simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a speed-changing regulating wrench and a processing mold thereof. Background Art

[0002] Bicycles are an indispensable means of transportation in daily life. Their ease of use has made them popular worldwide, creating a vast bicycle consumer market. With the continuous advancement of technology, people's demand for more functional bicycles is also increasing. Electronically-shifted bicycles, due to their multifunctionality and lightweight design, are highly sought after by cycling enthusiasts.

[0003] Electronically shifted bicycles use an electronic transmission to adjust the gear ratio between the chain and the front and rear wheels, adjusting riding speed to suit terrain changes or physical demands. The electronic transmission includes a speed adjustment wrench and two speed adjustment buttons. The bicycle can be accelerated or decelerated by pressing the corresponding speed adjustment button on the speed adjustment wrench. Currently, the speed adjustment wrench has a smooth surface, which not only makes it easy for it to slip out of your hand during use, posing a safety hazard, but also makes it difficult to quickly distinguish the corresponding acceleration or deceleration speed adjustment button during speed adjustment. This causes speed delays that affect the riding experience and can even affect riding safety due to untimely speed adjustments. Utility Model Content

[0004] In order to overcome at least one of the defects of the above-mentioned prior art, one of the purposes of the present invention is to provide a speed adjustment wrench with anti-slip function and convenient and quick confirmation of partitions, so as to adjust the speed in time to ensure riding safety.

[0005] The second purpose of the utility model is to provide a processing mold for injection molding a speed adjustment wrench with anti-slip function and convenient and quick confirmation of partitions and timely speed adjustment, while having the characteristics of simple structure and easy operation.

[0006] One of the technical solutions adopted by the present invention to solve the problem is:

[0007] A speed adjustment wrench, comprising:

[0008] Connecting part;

[0009] a first pressing portion, one end of the first pressing portion being fixedly connected to one end of the connecting portion;

[0010] a second pressing portion, one end of the second pressing portion being fixedly connected to the outer side of one end of the first pressing portion, the first pressing portion and the second pressing portion being located on the same side of the connecting portion and arranged in the same direction to form a gap between the first pressing portion and the second pressing portion;

[0011] An anti-slip structure is provided on the surface of the first pressing portion or the second pressing portion.

[0012] Furthermore, the anti-slip structure is a plurality of protrusions provided on the surface of the first pressing portion or the second pressing portion, and the protrusions are at least one of diamond-shaped, arc-shaped, and tooth-shaped.

[0013] Furthermore, the other end of the first pressing portion and the other end of the second pressing portion are fixedly connected via a connecting piece.

[0014] Furthermore, the connecting portion, the first pressing portion, the second pressing portion, the anti-slip structure and the connecting piece are injection-molded into an integrated structure.

[0015] The second technical solution adopted by the present invention to solve the problem is:

[0016] A processing mold for a speed adjustment wrench is used to form the speed adjustment wrench, including: a corresponding movable mold and a fixed mold, the movable mold including a movable platen and a movable mold core fixedly arranged in the movable platen, the fixed mold including a fixed platen and a fixed mold core fixedly arranged in the fixed platen, the movable mold core and the fixed mold core are arranged facing each other and correspondingly, the movable mold core is provided with a concave mold groove adapted for the speed adjustment wrench, and the fixed mold core is provided with an adapted convex mold corresponding to the concave mold groove, so that the molds are closed to form a cavity adapted for the speed adjustment wrench.

[0017] Furthermore, the die groove includes a connecting groove, one end of the connecting groove is connected to one end of the first pressing groove, the outer side of one end of the first pressing groove is connected to one end of the second pressing groove, the first pressing groove and the second pressing groove are both located on the same side of the connecting groove and arranged in the same direction, and the surface of the first pressing groove or the second pressing groove is a concave-convex structure.

[0018] Furthermore, a convex rib is provided between the first pressing groove and the second pressing groove.

[0019] Furthermore, a sheet groove is formed at the other end of the convex rib corresponding to the first pressing groove and the second pressing groove, and the sheet groove communicates with the other end of the first pressing groove and the other end of the second pressing groove.

[0020] Furthermore, the movable mold also includes a panel fixed above the movable mold plate, and the fixed mold also includes a bottom plate arranged below the fixed mold plate. The fixed mold plate and the bottom plate are fixedly connected by two square irons arranged opposite to each other at a distance, and an accommodating space is formed between the fixed mold plate, the two square irons and the bottom plate. A pin plate that can move up and down is provided in the accommodating space, and the pin plate is connected to the cavity through the pin.

[0021] Furthermore, the ejector plate is pushed upward by the ejection mechanism, and the ejector plate is connected to the fixed template via an elastic member.

[0022] The beneficial effects of the speed adjustment wrench and the processing mold thereof provided by the utility model are as follows:

[0023] (1) The surface of the first pressing portion or the second pressing portion is provided with an anti-slip structure. On the one hand, the anti-slip structure can increase the anti-slip and wear resistance of the speed adjustment wrench, thereby improving the service life and safety of the speed adjustment wrench. On the other hand, the provision of the anti-slip structure can quickly distinguish the first pressing portion from the second pressing portion, thereby achieving rapid speed adjustment to ensure a good riding experience and riding safety.

[0024] (2) The movable mold core of the processing mold is provided with a die groove adapted to the speed adjustment wrench, so that the speed adjustment wrench with anti-slip and easy-to-distinguish functions can be injection molded through the processing mold, and the processing mold has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the speed adjustment wrench of Example 1;

[0026] Figure 2 Schematic diagram of the structure of the processing mold of Example 2;

[0027] Figure 3 is a cross-sectional view of the processing mold of Example 2;

[0028] Figure 4 Schematic diagram of the structure of the movable mold core and the fixed mold core of Example 2;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0030] The meanings of the reference numerals are as follows:

[0031] 10. Connecting portion; 20. First pressing portion; 30. Second pressing portion; 40. Gap; 50. Anti-slip structure; 60. Connecting piece;

[0032] 1. Moving platen; 2. Moving mold core; 21. Die groove; 211. Connecting groove; 212. First pressing groove; 213. Second pressing groove; 214. Raised rib; 215. Concave-convex structure; 216. Sheet groove; 3. Fixed platen; 4. Fixed mold core; 41. Punch; 5. Panel; 6. Square iron; 7. Bottom plate; 8. Ejector plate; 9. Ejector. DETAILED DESCRIPTION

[0033] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] Example 1

[0037] See Figure 1 The present embodiment discloses a speed adjustment wrench, including a connecting part 10, a first pressing part 20 and a second pressing part 30, one end of the first pressing part 20 is fixedly connected to one end of the connecting part 10, and one end of the second pressing part 30 is fixedly connected to the outer side of one end of the first pressing part 20, and the first pressing part 20 and the second pressing part 30 are both located on the same side of the connecting part 10 and arranged in the same direction to form a gap 40 between the first pressing part 20 and the second pressing part 30, and the surface of the first pressing part 20 or the second pressing part 30 is provided with an anti-slip structure 50.

[0038] This speed adjustment wrench is used for the electronic transmission of an electronically shifted bicycle. The electronic transmission includes two speed adjustment buttons, one for acceleration and one for deceleration, and the speed adjustment wrench of this embodiment. The two speed adjustment buttons are respectively an acceleration button and a deceleration button. The speed adjustment wrench covers the two speed adjustment buttons. The connecting portion 10 is used to connect to components such as the handlebars and brake lever. The first pressing portion 20 and the second pressing portion 30 are located on the same side of the connecting portion 10. The first pressing portion 20 is provided for the acceleration button, and the second pressing portion 30 is provided for the deceleration button. Thus, the bicycle can be accelerated or decelerated by pressing the first pressing portion 20 or the second pressing portion 30.

[0039] When adjusting the speed of a bicycle, riders generally do not distract themselves by visually searching for the first and second pressing parts 20, 30. Instead, they rely on their senses to distinguish and press them to accelerate or decelerate. However, existing speed adjustment wrenches have identical smooth surfaces on the first and second pressing parts 20, 30, making them difficult to distinguish. This results in riders being unable to quickly perform the necessary acceleration or deceleration operations, which not only affects the riding experience but also compromises riding safety.

[0040] In this embodiment, the surface of the first pressing portion 20 or the second pressing portion 30 is provided with an anti-slip structure 50. The provision of the anti-slip structure 50 makes the surface structures of the first pressing portion 20 and the second pressing portion 30 distinct. When the rider needs to adjust the speed during riding, they can quickly distinguish the first pressing portion 20 and the second pressing portion 30 based on the roughness or smoothness of the surface structure, thereby quickly performing the speed adjustment pressing action, thereby ensuring the riding experience and riding safety. In addition, the provision of the anti-slip structure 50 can increase the anti-slip and wear resistance of the speed adjustment wrench, thereby improving the service life and safety of the speed adjustment wrench.

[0041] The anti-slip structure 50 is a plurality of protrusions provided on the surface of the first pressing portion 20 or the second pressing portion 30 , and the protrusions are at least one of diamond-shaped, arc-shaped, and tooth-shaped. Figure 1 Several diamond-shaped protrusions are shown, distributed on the surface of the first pressing portion 20 to improve anti-slip performance and facilitate quick differentiation between the first pressing portion 20 and the second pressing portion 30. Of course, the anti-slip structure 50 can also be provided on the surface of the second pressing portion 30, and the anti-slip structure 50 can also be a protrusion structure of any other shape, as long as it can achieve the effects of anti-slip, wear resistance, and easy differentiation.

[0042] In addition to the aforementioned speed control structure, the electronic transmission is also equipped with an indicator light that emits different colored lights to indicate whether the electronic transmission needs charging. The indicator light is located near the speed control button and is covered by the speed adjustment wrench. To facilitate the rider's observation of the light emitted by the indicator light, one end of the second pressing portion 30 is fixedly connected to the outer side of one end of the first pressing portion 20. The first pressing portion 20 and the second pressing portion 30 are both located on the same side of the connecting portion 10 and arranged in the same direction, forming a gap 40 between the first pressing portion 20 and the second pressing portion 30. The light of the indicator light is transmitted through the gap 40, allowing the rider to observe the working status of the indicator light.

[0043] Furthermore, the other end of the first pressing part 20 and the other end of the second pressing part 30 are fixedly connected by a connecting piece 60. If only one end of the first pressing part 20 and the second pressing part 30 is fixed, the connection between the first pressing part 20 and the second pressing part 30 is easy to be detached during long-term pressing and use, causing damage to the speed adjustment wrench. In this way, on the basis of fixing one end, the outer side of the other end of the first pressing part 20 and the inner side of the other end of the second pressing part 30 are fixedly connected by the connecting piece 60, which not only improves the firmness of the connection between the first pressing part 20 and the second pressing part 30 without affecting the light transmission effect of the indicator light, but also because only the ends of the first pressing part 20 and the second pressing part 30 are connected, when one of them is pressed, the deformation of the other is smaller, thereby achieving the purpose of only one speed adjustment button being pressed, avoiding speed adjustment errors.

[0044] Based on the above structure, the connecting part 10, the first pressing part 20, the second pressing part 30, the anti-slip structure 50 and the connecting piece 60 are injection molded into an integrated structure, which improves the structural strength and connection stability of the speed adjustment wrench, and is beneficial to improving the service life of the speed adjustment wrench.

[0045] Example 2

[0046] See Figure 2 、 Figure 3 and Figure 4 This embodiment discloses a processing mold for a speed adjustment wrench, which is used to form the speed adjustment wrench of Example 1. The processing mold includes: a corresponding movable mold and a fixed mold, the movable mold includes a movable mold plate 1 and a movable mold core 2 fixedly arranged in the movable mold plate 1, the fixed mold includes a fixed mold plate 3 and a fixed mold core 4 fixedly arranged in the fixed mold plate 3, the movable mold core 2 and the fixed mold core 4 are arranged facing each other, the movable mold core 2 is provided with a die groove 21 adapted for the speed adjustment wrench, and the fixed mold core 4 is provided with an adapted convex mold 41 corresponding to the die groove 21, so that the mold is closed to form a cavity adapted for the speed adjustment wrench.

[0047] The movable mold core 2 of the processing mold is provided with a concave mold groove 21 adapted to the speed adjustment wrench, so that the speed adjustment wrench with anti-slip and convenient distinguishing function can be injection molded by the processing mold. Figure 5 The die groove 21 includes a connecting groove 211, one end of which is connected to one end of a first pressing groove 212, and one end of the first pressing groove 212 is connected to one end of a second pressing groove 213 on the outside. The first pressing groove 212 and the second pressing groove 213 are both located on the same side of the connecting groove 211 and arranged in the same direction. The surface of the first pressing groove 212 or the second pressing groove 213 is a concave-convex structure 215. In this way, after injection molding, the connecting portion 10 is formed at the connecting groove 211, the first pressing groove 212 is used to form the first pressing portion 20, and the second pressing groove 213 is used to form the second pressing portion 30. A gap 40 is formed between the first pressing groove 212 and the second pressing groove 213, and the concave-convex structure 215 is used to form the anti-slip structure 50. The injection molding of the speed adjustment wrench is completed.

[0048] During the injection molding process, the rubber material within the first pressing groove 212 and the second pressing groove 213 is squeezed due to internal stress, causing the spacing between the first pressing groove 212 and the second pressing groove 213 to decrease, thereby affecting the molding effect of the gap 40. To this end, a rib 214 is provided between the first pressing groove 212 and the second pressing groove 213. The rib 214 provides a certain degree of support, resisting the squeezing force and preventing deformation of the first pressing groove 212, the second pressing groove 213, and the space between them, thereby ensuring the molding effect of the first pressing portion 20, the second pressing portion 30, and the gap 40.

[0049] Furthermore, a tab 216 is formed at the other end of the rib 214, corresponding to the first pressing groove 212 and the second pressing groove 213. The tab 216 connects the other end of the first pressing groove 212 with the other end of the second pressing groove 213. Thus, after injection molding, the tab 60 is formed at the tab 216 to connect the other ends of the first pressing portion 20 and the second pressing portion 30, thereby ensuring that both ends of the first pressing portion 20 and the second pressing portion 30 are fixedly connected.

[0050] It should be noted that the structure of the punch 41 is designed to match the structure of the die groove 21, and a cavity for the speed adjustment wrench is formed between the punch 41 and the die groove 21. There can be only one cavity, or two or more cavities can be provided to increase production.

[0051] On the basis of the above structure, the movable mold also includes a panel 5 fixed above the movable mold plate 1, and the fixed mold also includes a bottom plate 7 arranged below the fixed mold plate 3. The fixed mold plate 3 and the bottom plate 7 are fixedly connected by two square irons 6 arranged opposite to each other at a distance, and an accommodating space is formed between the fixed mold plate 3, the two square irons 6 and the bottom plate 7. A pin plate 8 that can move up and down is provided in the accommodating space, and the pin plate 8 is connected to the cavity through the pin 9.

[0052] The faceplate 5, movable platen 1, fixed platen 3, square iron 6, and base plate 7 are securely connected by screws, and guide rods may be provided to enhance mold closing accuracy. During mold closing, a hydraulic cylinder or other drive mechanism drives the movable mold downward to close the mold, and then the rubber compound is injected for molding. After injection molding is complete, a hydraulic cylinder or other drive mechanism drives the movable mold upward to open the mold. The ejector plate 8 moves upward to eject the formed speed adjustment wrench from the mold cavity via the ejector pin 9.

[0053] There may be a plurality of ejector pins 9 , and the ejector pins 9 may include straight ejector pins and oblique ejector pins, so that the straight ejector pins and the oblique ejector pins cooperate to quickly eject the formed variable speed adjustment wrench.

[0054] Ejector plates 8 can be stacked in two sections, one on top of the other—an ejector top plate and another on the bottom plate—to ensure smooth ejection of the speed-adjusting wrench from the mold cavity. Ejector plate 8 is pushed upward by an ejection mechanism, which connects it to the fixed mold plate 3 via an elastic member. The ejection mechanism includes a driving force and an ejector rod. The rod is connected to ejector plate 8 and driven by the driving force, causing it to move upward and push ejector pin 9 to complete the ejection operation. This compresses the elastic member. After the speed-adjusting wrench is ejected from the mold, the ejection mechanism removes the driving force, and the elastic force of the elastic member drives ejector plate 8 downward onto bottom plate 7.

[0055] In this embodiment, the elastic member is a spring, which can be sleeved on the connecting rod to ensure the directional elastic force of the elastic member.

[0056] Therefore, the processing mold has a simple structure and is easy to operate.

[0057] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A speed adjustment wrench, characterized in that: include: Connecting part; a first pressing portion, one end of the first pressing portion being fixedly connected to one end of the connecting portion; a second pressing portion, one end of the second pressing portion being fixedly connected to the outer side of one end of the first pressing portion, the first pressing portion and the second pressing portion being located on the same side of the connecting portion and arranged in the same direction to form a gap between the first pressing portion and the second pressing portion; A surface of the first pressing portion or the second pressing portion is provided with an anti-slip structure.

2. The speed adjustment wrench according to claim 1, characterized in that: The anti-slip structure is a plurality of protrusions provided on the surface of the first pressing portion or the second pressing portion, and the protrusions are at least one of diamond-shaped, arc-shaped, and tooth-shaped.

3. The speed adjustment wrench according to claim 1 or 2, characterized in that: The other end of the first pressing portion and the other end of the second pressing portion are fixedly connected via a connecting piece.

4. The speed adjustment wrench according to claim 3, characterized in that: The connecting portion, the first pressing portion, the second pressing portion, the anti-slip structure and the connecting piece are injection-molded into an integrated structure.

5. A processing mold for a speed adjustment wrench, characterized in that: Used to form the speed adjustment wrench described in any one of claims 1 to 4, comprising: correspondingly arranged movable mold and fixed mold, the movable mold comprising a movable platen and a movable mold core fixedly arranged in the movable platen, the fixed mold comprising a fixed platen and a fixed mold core fixedly arranged in the fixed platen, the movable mold core and the fixed mold core are arranged facing each other, the movable mold core is provided with a die groove adapted for the speed adjustment wrench, and the fixed mold core is provided with an adapted convex mold corresponding to the die groove, so as to close the mold to form a cavity adapted for the speed adjustment wrench.

6. The processing mold for the speed adjustment wrench according to claim 5, characterized in that: The die groove includes a connecting groove, one end of the connecting groove is connected to one end of the first pressing groove, the outer side of one end of the first pressing groove is connected to one end of the second pressing groove, the first pressing groove and the second pressing groove are both located on the same side of the connecting groove and arranged in the same direction, and the surface of the first pressing groove or the second pressing groove is a concave-convex structure.

7. The processing mold for the speed adjustment wrench according to claim 6, characterized in that: A convex rib is provided between the first pressing groove and the second pressing groove.

8. The processing mold for the speed adjustment wrench according to claim 7, characterized in that: A sheet groove is formed at the other end of the rib corresponding to the first pressing groove and the second pressing groove, and the sheet groove communicates with the other end of the first pressing groove and the other end of the second pressing groove.

9. The processing mold for the speed adjustment wrench according to claim 5, characterized in that: The movable mold also includes a panel fixed above the movable mold plate, and the fixed mold also includes a bottom plate arranged below the fixed mold plate. The fixed mold plate and the bottom plate are fixedly connected by two square irons arranged opposite to each other at a distance, and an accommodating space is formed between the fixed mold plate, the two square irons and the bottom plate. A pin plate that can move up and down is provided in the accommodating space, and the pin plate is connected to the mold cavity through an ejector pin.

10. The processing mold for the speed adjustment wrench according to claim 9, characterized in that: The ejector plate is pushed upward by an ejection mechanism, and the ejector plate is connected to the fixed template via an elastic member.

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