Gear shifting handball

Abstract

The utility model relates to the technical field of automobile gear shifters, and discloses a gear shifting handball which comprises a handball framework, a sliding space is formed in the handball framework, a pressing part is connected in the sliding space in a sliding mode, the pressing part comprises a key and a sliding block located on the inner side of the key, and an upper cover and a lower cover which are connected in a clamped mode are arranged on the periphery of the handball framework. A limiting guide unit is arranged on the inner side face of the upper cover and comprises first limiting blocks located on the two sides of the sliding block, the first limiting blocks on the two sides incline in the same direction, the top of the sliding block stretches into the position between the first limiting blocks on the two sides, and the first limiting blocks, the second limiting blocks and the sliding block are in line contact. The limiting and guiding unit is integrated on the inner side face of the upper cover to achieve the guiding and limiting functions on the sliding block, a guiding pressing plate in the prior art does not need to be arranged, space is saved to a certain degree, the complexity of the internal structure of the gear shifting handball is reduced, and meanwhile the manufacturing cost of the gear shifting handball is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive gear shifter technology, specifically relating to a gear shift hand ball. Background Technology

[0002] In automatic transmission vehicles, the straight-pull gearshift (straight-line shift mechanism) is a common mechanical shifting design. Its gears are arranged in a straight line, and the driver shifts gears by pushing or pulling the shift knob. The shift knob often also integrates a locking button. The shift knob must be pressed in conjunction with the locking button to shift gears; if the driver does not press this button, the shift knob cannot move, preventing accidental operation.

[0003] Patent (CN211820698U) discloses a handball button guiding structure, including a handball frame and a button. The handball frame has a core hole and a push groove connected to the core hole. A push block is slidably disposed within the push groove. The button is inserted into the core hole and slides within it, and is fixedly mounted on the push block. A compression spring is disposed between the side of the push block away from the button and the inner wall of the guide groove. The axis of the compression spring is parallel to the sliding direction of the button. The key feature is that a guide plate is mounted on the handball frame to guide and limit the push block, and the guide plate is located above the push block. Its advantage is that the guide plate enhances the guiding and limiting effect on the push block, helping to reduce the amplitude of button wobble and improve operational quality. However, it also has the following disadvantages: a cover plate must be installed above the guide plate to ensure the sealing and comfort of the shift handball. Therefore, the added guide plate will inevitably increase the complexity of the internal structure of the shift handball and also increase manufacturing costs. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a shift handball to solve the technical problem that adding a guide pressure plate would increase the complexity of the internal structure of the shift handball in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A shift handball includes a handball frame with a sliding space inside. A pressing component is slidably connected within the sliding space. The pressing component includes a button and a sliding block located inside the button. The outer periphery of the handball frame is provided with an upper cover and a lower cover that interlock with each other. A limiting guide unit is provided on the inner side of the upper cover. The limiting guide unit includes first limiting blocks located on both sides of the sliding block. The two first limiting blocks are inclined in the same direction. The top of the sliding block extends between the two first limiting blocks, so that the top edge of one side of the sliding block contacts the inner side of the first limiting block, and the other side of the sliding block contacts the bottom edge of the corresponding first limiting block. The limiting guide unit also includes a second limiting block located between the two first limiting blocks. The second limiting block is also inclined and abuts against the top surface of the sliding block. The first limiting block, the second limiting block and the sliding block are all in line contact.

[0007] Furthermore, the bottom surface of the sliding block has a receiving groove that gradually tapers from bottom to top. The longitudinal section of the receiving groove along the length of the sliding block is a right trapezoidal shape. The inclined surface of the receiving groove near the button is an inclined pressure surface. The handball frame has a shift lever channel that is connected to the sliding groove in the vertical direction. A shift lever is slidably connected in the shift lever channel. The top of the shift lever has a hemispherical contact end. The contact end extends into the receiving groove and makes point contact with the inclined pressure surface.

[0008] Furthermore, the sliding space includes interconnected insertion holes and sliding grooves. The sliding grooves are located at the top of the handball frame and have their openings facing upwards. The insertion holes are located on the side of the handball frame, with the insertion holes facing the sliding grooves and extending along the length of the sliding grooves until the insertion holes and sliding grooves are connected. Limiting platforms are formed on the two side walls of the sliding grooves in the width direction.

[0009] Furthermore, guide blocks are provided on both sides of the sliding block in the width direction, and arc-shaped protrusions are provided on both sides of the guide blocks in the vertical direction. The arc-shaped protrusions on the bottom surface of the guide block contact the top surface of the limiting platform and support the sliding block through the limiting platform. A gap is left between the bottom surface of the sliding block and the bottom of the sliding groove.

[0010] Furthermore, the button and the slider are detachably connected. The slider is slidably connected to the sliding groove. The slider includes a main body. A plug-in body is provided at the end of the main body facing the button along its length. A latch is formed at the fixed end of the plug-in body. The latch is distributed on the upper and lower sides of the plug-in body. The button is slidably connected to the socket. A plug-in groove adapted to the plug-in body is opened on the side of the button facing the slider. A latching block is provided on the upper and lower sides of the opening of the plug-in groove. A latching hole for latching the latch is opened on the latching block.

[0011] Furthermore, a compression spring is provided between the side of the slider away from the button and the sliding groove. The compression spring is a conical spring, and the diameter of the spring coil gradually increases along the direction away from the button.

[0012] The beneficial effects of this utility model are as follows:

[0013] Compared to existing technologies, by integrating the limiting guide unit onto the inner side of the top cover to guide and limit the sliding block, the following advantages are achieved: First, it eliminates the need for the guide pressure plate found in existing technologies, saving space and reducing the complexity of the internal structure of the shift knob, thus lowering manufacturing costs. Second, it makes assembling the shift knob more convenient and faster, effectively improving assembly efficiency. Furthermore, the line contact between the limiting guide unit and the sliding block effectively reduces frictional resistance, ensuring a smooth shifting process. Attached Figure Description

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0015] Figure 1 This is a schematic diagram of the shift handball in Embodiment 1 of this utility model;

[0016] Figure 2 This is an exploded view of the gear shift handball in Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the handball skeleton in Embodiment 1 of this utility model;

[0018] Figure 4 This is a schematic diagram of the sliding block in Embodiment 1 of this utility model;

[0019] Figure 5 for Figure 4 Enlarged view at point A1;

[0020] Figure 6 This is a schematic diagram of the button in Embodiment 1 of this utility model;

[0021] Figure 7 This is a schematic diagram of the sliding block in Embodiment 1 of this utility model, used to show the receiving groove and inclined pressing surface at the bottom of the sliding block;

[0022] Figure 8 This is a schematic diagram of the upper cover in Embodiment 1 of this utility model.

[0023] The following labels are shown in the attached diagram:

[0024] Handball frame 1, socket 101, sliding groove 102, limiting platform 103, shift lever channel 104, button 2, plug groove 201, snap block 202, snap hole 203, sliding block 3, main body 301, plug body 302, snap tongue 303, limiting protrusion 304, guide block 305, arc-shaped protrusion 306, receiving groove 307, inclined pressure surface 308, compression spring 4, shift lever 5, contact end 501, upper cover 6, first limiting block 601, second limiting block 602, lower cover 7. Detailed Implementation

[0025] Example 1, specifically as follows Figures 1-8 As shown.

[0026] A shift handball includes a handball frame 1 with a sliding space formed inside. The sliding space includes an interconnected insertion hole 101 and a sliding groove 102. The sliding groove 102 is located at the top of the handball frame 1 with its opening facing upward. The insertion hole 101 is located on the side of the handball frame 1, and the insertion hole 101 is directly opposite the sliding groove 102. The insertion hole 101 extends along the length of the sliding groove 102 until it is connected to the sliding groove 102. The longitudinal cross-sectional dimension of the insertion hole 101 is smaller than the longitudinal cross-sectional dimension of the sliding groove 102. Limiting platforms 103 are formed on the two side walls of the sliding groove 102 in the width direction. There is a gap between the limiting platforms 103 and the bottom of the sliding groove 102.

[0027] A pressing component is slidably connected within the sliding space. The pressing component includes a button 2 and a sliding block 3 located inside the button 2. The two are detachably connected by a snap-fit. Guide blocks 305 are integrally formed on both side walls in the width direction of the sliding block 3. In this embodiment, a gap is left between the guide blocks 305 and the bottom surface of the sliding block 3. In addition, arc-shaped protrusions 306 are provided on both sides in the vertical direction of the guide blocks 305, and the arc-shaped protrusions 306 are integrally formed with the guide blocks 305. When the sliding block 3 is installed, the arc-shaped protrusions 306 on the bottom surface of the guide blocks 305 contact the top surface of the limiting platform 103 and support the sliding block 3 through the limiting platform 103. At this time, a gap is left between the bottom surface of the sliding block 3 and the bottom of the sliding groove 102. The limiting platform 103 and guide block 305 not only realize the sliding connection between the sliding block 3 and the sliding groove 102, but also ensure that the bottom surface of the sliding block 3 does not contact the bottom of the sliding groove 102, which greatly reduces the frictional resistance during the sliding process. Furthermore, the use of arc-shaped protrusion 306 makes the sliding block 3 and the limiting platform 103 make line contact, which reduces the contact area and further reduces the frictional resistance.

[0028] The sliding block 3 includes a main body 301. A cuboid-shaped connector 302 is provided at one end of the main body 301 facing the button 2 along its length. The connector 302 is integrally formed with the main body 301. A latch 303 is formed at the fixed end of the connector 302, and the latches 303 are distributed on the upper and lower sides of the connector 302. Limiting protrusions 304 are integrally formed on both sides of the width of the middle portion of the connector 302, with a gap between the limiting protrusions and the latches 303.

[0029] Button 2 is slidably connected to socket 101. A socket groove 201, adapted to the connector 302, is formed on the side of button 2 facing the sliding block 3. The connector 302 extends into the socket groove 201. Simultaneously, a limiting protrusion 304 abuts against button 2, thereby positioning the connector 302. Locking blocks 202 are provided on the upper and lower sides of the opening of the socket groove 201. The locking blocks 202 are integrally formed with button 2. Locking blocks 202 have locking holes 203 for locking the latch 303. As the connector 302 extends into the socket groove 201, the latch 303 engages with the locking hole 203, thus completing the assembly of button 2 and sliding block 3.

[0030] The bottom surface of the sliding block 307 has a receiving groove 307 that gradually tapers from bottom to top. The longitudinal section of the receiving groove 307 along the length of the sliding block 307 is a right trapezoidal shape. The inclined surface of the receiving groove 307 near the button 2 is an inclined pressure surface 308. The handball frame 1 has a shift lever channel 104 that communicates with the sliding groove 102 in the vertical direction. The shift lever 5 is slidably connected in the shift lever channel 104. The top of the shift lever 5 forms a hemispherical contact end 501. The contact end 501 extends into the receiving groove 307 and makes point contact with the inclined pressure surface 308.

[0031] A compression spring 4 is provided between the side of the sliding block 307 away from the button 2 and the sliding groove 102. In this embodiment, the compression spring 4 is a conical spring and the diameter of the spring coil gradually increases along the direction away from the button 2. The two ends of the compression spring 4 are welded and fixed to the side of the sliding block 307 and the groove wall of the sliding groove 102, respectively.

[0032] When it is necessary to change gears, press button 2 to push the pressing part inward. During this process, the gear shift lever 5 slides down and the gear lock structure is unlocked, so that the gear can be changed. After the gear change is completed, release button 2 and the pressing part and gear shift lever 5 return to their original positions.

[0033] The handball frame 1 is surrounded by an interlocking upper cover 6 and a lower cover 7, which protect the handball frame 1 and its internal structure. In the prior art, in order to guide and limit the sliding block 3 and thereby reduce the wobbling amplitude of the button 2, a guide pressure plate is added above the sliding block 3. However, the addition of the guide pressure plate will inevitably increase the complexity of the internal structure of the shift handball to a certain extent, and will also increase the manufacturing cost.

[0034] Based on this, in this embodiment, a limiting and guiding unit is provided on the inner side of the upper cover 6. The limiting and guiding unit is vertically opposite to the sliding space. The limiting and guiding unit includes first limiting blocks 601 located on both sides of the sliding block 3, which guide and limit the sliding block 3. Specifically, the extension direction of the first limiting block 601 is consistent with the length direction of the sliding block 3, and the two first limiting blocks 601 are inclined in the same direction. In this embodiment, the angle between the first limiting block 601 and the horizontal plane is 80°. The top of the sliding block 3 extends between the two first limiting blocks 601, so that the top edge of one side of the sliding block 3 contacts the inner side of the first limiting block 601, and the other side of the sliding block 3 contacts the bottom edge of the corresponding first limiting block 601. This results in a line contact between the first limiting block 601 and the sliding block 3, thereby reducing the frictional resistance between the first limiting block 601 and the sliding block 3, making the movement of the entire pressing component smoother and improving the shifting efficiency.

[0035] The limiting and guiding unit also includes a second limiting block 602 located between the two first limiting blocks 601. In this embodiment, the second limiting block 602 is exactly in the middle of the two first limiting blocks 601. The second limiting block 602 extends in the same direction as the first limiting block 601, and the second limiting block 602 is also inclined, with the same inclination angle as the first limiting block 601. It is worth emphasizing that the height of the second limiting block 602 is less than the height of the first limiting block 601. By abutting against the top surface of the sliding block 3, the second limiting block 602 limits the height of the sliding block 3. Furthermore, the inclined second limiting block 602 and the sliding block 3 are in line contact, which also reduces the friction between them, facilitating the sliding of the sliding block 3.

[0036] By integrating the limiting guide unit onto the inner side of the upper cover 6 to guide and limit the sliding block 3, the existing guide pressure plate is no longer needed, saving space and reducing the complexity of the internal structure of the shift knob, as well as its manufacturing cost. Furthermore, assembling the shift knob is more convenient and faster, effectively improving assembly efficiency. Additionally, the line contact between the limiting guide unit and the sliding block 3 effectively reduces frictional resistance, ensuring a smooth shifting process.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A shift handball, characterized in that, The device includes a handball frame with a sliding space within it. A pressing component is slidably connected within the sliding space, and the pressing component includes a button and a sliding block located inside the button. The handball frame has an upper cover and a lower cover that interlock with each other. A limiting guide unit is provided on the inner side of the upper cover, and the limiting guide unit is vertically opposite to the sliding space. The limiting guide unit includes first limiting blocks located on both sides of the sliding block, with both first limiting blocks tilted in the same direction. The top of the sliding block extends between the two first limiting blocks, so that the top edge of one side of the sliding block contacts the inner side of the first limiting block, and the other side of the sliding block contacts the bottom edge of the corresponding first limiting block. The limiting guide unit also includes a second limiting block located between the two first limiting blocks, which is also tilted and abuts against the top surface of the sliding block. The first limiting block, the second limiting block, and the sliding block are all in line contact.

2. The shift handball according to claim 1, characterized in that, The bottom surface of the sliding block has a receiving groove that gradually tapers from bottom to top. The longitudinal section of the receiving groove along the length of the sliding block is a right trapezoid. The inclined surface of the receiving groove near the button is a sloping pressure surface. A shift lever channel connected to the sliding groove is opened vertically inside the handball frame. A shift lever is slidably connected in the shift lever channel. The top of the shift lever forms a hemispherical contact end. The contact end extends into the receiving groove and makes point contact with the sloping pressure surface.

3. The shift handball according to claim 2, characterized in that, The sliding space includes interconnected sockets and sliding grooves. The sliding grooves are located at the top of the handball frame and have their openings facing upwards. The sockets are located on the side of the handball frame, and the sockets are directly opposite the sliding grooves. The sockets extend along the length of the sliding grooves until they are connected. Limiting platforms are formed on the two side walls of the sliding grooves in the width direction.

4. The shift handball according to claim 3, characterized in that, Guide blocks are provided on both sides of the sliding block in the width direction. Arc-shaped protrusions are provided on both sides of the guide block in the vertical direction. The arc-shaped protrusions on the bottom surface of the guide block contact the top surface of the limiting platform and support the sliding block through the limiting platform. A gap is left between the bottom surface of the sliding block and the bottom of the sliding groove.

5. The shift handball according to claim 4, characterized in that, The button and the slider are detachably connected. The slider is slidably connected to the sliding groove. The slider includes a main body. A plug body is provided at the end of the main body facing the button along its length. A latch is formed at the fixed end of the plug body. The latch is distributed on the upper and lower sides of the plug body. The button is slidably connected to the socket. A plug groove adapted to the plug body is opened on the side of the button facing the slider. A latching block is provided on the upper and lower sides of the opening of the plug groove. A latching hole for latching the latch is opened on the latching block.

6. The shift handball according to claim 5, characterized in that, A compression spring is provided between the side of the slider away from the button and the sliding groove. The compression spring is a conical spring, and the diameter of the spring coil gradually increases along the direction away from the button.

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