Gear rack transmission device, panel translation structure, gas stove

Abstract

The present invention provides a gear rack transmission device, a panel translation device, and a gas stove. A gear rack transmission device includes: a rack, on which a slide groove is arranged; a movable bracket, which has a first support part partially extending into the slide groove, and a second support part arranged at an angle with the first support part; a plurality of balls, movably arranged on the first support part, at least partially in contact with a groove wall of the slide groove; a gear, arranged on the second support part, meshing with the rack, and the gear is driven by an external force to drive the movable bracket to reciprocate on the rack. This embodiment solves the problem of the gear rack transmission device in the prior art that the structure is not compact and the noise is high.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a gear rack transmission device, a panel translation structure, and a gas stove. Background Art

[0002] Gear transmission is one of the main forms of mechanical transmission. Due to its advantages such as large speed ratio range, wide power range, compact and reliable structure, it has been widely used in various mechanical equipment and instruments, becoming the largest transmission in existing mechanical products and has broad application prospects.

[0003] The existing gear rack linkage mechanism usually includes the following structures: a gear, a rack and a track groove, the gear and the rack are adapted to mesh, the rack is slidably installed in the track groove, and the gear is fixedly connected to the motor shaft. The motor rotates to drive the gear to rotate, and the rack meshing with the gear moves in the track groove driven by the gear.

[0004] In the above structure, on the one hand, the contact area between the rack and the track groove is large, and there is a large friction resistance when the two move, which increases the motor load and is prone to noise; on the other hand, the rack moves in the track groove. Because the rack itself has a certain length and its movement stroke, a large structural space is required, which easily causes the problem of a non-compact structure. Summary of the invention

[0005] Therefore, in order to solve the problems of high noise and non-compact structure in the gear rack linkage mechanism in the prior art, the present invention provides a gear rack transmission device, a panel translation structure, and a gas stove.

[0006] In order to solve the above problems, the present invention provides a rack and pinion transmission device including: a rack on which a slide groove is arranged; a movable bracket having a first support portion partially extending into the slide groove, and a second support portion arranged at an angle to the first support portion; a plurality of balls movably arranged on the first support portion, at least partially in contact with a groove wall of the slide groove; a gear arranged on the second support portion and meshing with the rack, and the gear is driven by an external force to drive the movable bracket to perform reciprocating motion on the rack.

[0007] Further, the portion of the first supporting portion extending into the sliding groove does not contact the sliding groove.

[0008] Furthermore, a portion of the movable bracket that penetrates into the slide groove is provided with a plurality of accommodating grooves, and the balls are rotatably arranged in the accommodating grooves.

[0009] Furthermore, the accommodating groove includes an introduction portion formed on the second supporting portion and a clamping portion formed on the first supporting portion.

[0010] Furthermore, the introduction portion is communicated with the clamping portion, and at least one of the balls passes through the introduction portion and enters the clamping portion.

[0011] Furthermore, the minimum groove width of the clamping portion is smaller than the ball diameter of the ball.

[0012] The rack and pinion transmission device in the present invention further comprises a baffle, which is detachably arranged on the introduction portion and is used to block the introduction portion to limit the ball from sliding out of the introduction portion.

[0013] Furthermore, a ball push rod is formed on the baffle, and the ball push rod passes through the introduction portion and extends into the clamping portion to limit the displacement of the ball in the introduction direction.

[0014] The rack and pinion transmission device in the present invention further includes: a motor, which is arranged on the second supporting part, and the gear is fixed on the motor shaft of the motor.

[0015] A panel translation structure comprises any one of the above-mentioned rack and pinion transmission devices, wherein the rack of the rack and pinion transmission device is fixedly arranged; and a connecting plate connected to the movable bracket, on which a panel is arranged.

[0016] The panel translation device in the present invention further comprises: a slide rail assembly, which is arranged side by side with the rack and comprises a slide rail and a slider movably arranged on the slide rail, and one end of the connecting plate is connected to the slider.

[0017] A gas stove comprising any one of the above-mentioned rack and pinion transmission devices, or

[0018] Any of the above described panel translation structures.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. The rack and pinion transmission device provided by the present invention comprises: a rack with a slide groove arranged thereon; a movable bracket having a first support portion partially extending into the slide groove, and a second support portion arranged at an angle to the first support portion; a plurality of balls movably arranged on the first support portion, at least partially in contact with a groove wall of the slide groove; a gear arranged on the second support portion and meshing with the rack, and the gear driven by an external force to drive the movable bracket to reciprocate on the rack.

[0021] In the present application, the gear makes reciprocating motion on the rack, and the maximum stroke of the gear is the length of the rack, which solves the problem in the prior art that the gear drives the rack to move. In order to achieve a stroke of the same rack length, at least a movement space of the rack length must be reserved, resulting in a non-compact product structure. Similarly, the gear moves on the rack through a movable bracket, and a ball is provided on the first supporting part of the movable bracket. The position movement in the rack slide groove is achieved by the rolling of the ball. In essence, the present application adopts rolling friction instead of the sliding friction in the prior art, which reduces the friction resistance of the movable bracket moving in the slide groove and the contact area with the slide groove, thereby reducing the noise generation.

[0022] 2. In the rack and pinion transmission device provided by the present invention, the portion of the first support portion extending into the slide groove does not contact the slide groove, thereby avoiding contact friction, thereby further reducing the generation of noise and the friction resistance that may be generated by contact friction.

[0023] 3. In the rack and pinion transmission device provided by the present invention, the part of the movable bracket that penetrates into the slide groove is provided with a plurality of receiving grooves, and the balls are rotatably arranged in the receiving grooves. The arrangement of the receiving grooves can separate the balls from each other, reduce collisions during rolling, and further reduce the generation of noise.

[0024] 4. In the gear rack transmission device provided by the present invention, the introduction part is connected with the clamping part, at least one of the balls passes through the introduction part and enters the clamping part, and the ball is arranged in the slide groove of the rack, which is inconvenient to remove and replace. The setting of the introduction part enables the operator to push the ball into the clamping part through the introduction part, which simplifies the installation of the ball.

[0025] 5. The minimum groove width of the clamping part in the rack and pinion transmission device provided by the present invention is smaller than the ball diameter of the ball. When the rack and pinion motion device is assembled, the gear and the rack are meshed, generating downward pressure on the rack. This pressure is transmitted to the ball, thereby causing the ball to abut against the slide groove surface close to the gear. At the same time, the above-mentioned design method can allow the ball to be received in the accommodating groove. The pressure on the ball reacts on the movable bracket, and the reaction force on the gear also acts on the movable bracket. The force on the movable bracket is balanced, thereby achieving assembly cooperation between the movable bracket, the gear and the rack.

[0026] 6. The rack and pinion transmission device in the present invention also includes: a baffle, which is detachably arranged on the introduction part to block the introduction part to limit the ball from sliding out of the introduction part. The setting of the baffle ensures that the ball will not fall out of the receiving groove during the rolling process, thereby enhancing the stability and reliability of the structure.

[0027] 7. In the gear rack transmission device of the present invention, a ball push rod is formed on the baffle, and the ball push rod passes through the introduction part and extends into the clamping part to limit the displacement of the ball in the introduction direction. Generally speaking, the accommodating space of the clamping part is larger than the volume of the ball. In order to prevent the ball from running off the track during rolling, the use of the ball push rod reduces the activity space of the ball to prevent it from running off the track.

[0028] 8. The panel translation structure in the present invention includes any of the above-mentioned rack and pinion transmission devices, wherein the rack itself is fixedly arranged; and a connecting plate, which is connected to the movable bracket and on which a panel is arranged. The use of the above-mentioned rack and pinion transmission device reduces the driving force required for the movement of the panel, and at the same time makes the panel move more smoothly and with less noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a schematic structural diagram of the rack and pinion transmission structure provided in Example 1 of the present invention;

[0031] Figure 2 for Figure 1 A partial enlarged view of point A;

[0032] Figure 3 for Figure 1 Exploded diagram of the decomposition;

[0033] Figure 4 This is a schematic diagram of the structure of the movable bracket provided in Example 1 of the present invention;

[0034] Figure 5 This is a schematic diagram of the mechanism of the baffle provided in Example 1 of the present invention;

[0035] Figure 6 This is a schematic diagram of the panel translation structure provided in Example 1 of the present invention.

[0036] Description of reference numerals:

[0037] 1- rack; 11- slide;

[0038] 2-movable bracket; 21-first supporting portion; 22-second supporting portion; 23-accommodating groove; 231-introduction portion; 232-clamping portion;

[0039] 3-Ball;

[0040] 4 – gear;

[0041] 5- baffle; 51- ball ejector;

[0042] 6 - Motor;

[0043] 7-Connection plate;

[0044] 8 - slide rail assembly; 81 - slide rail; 82 - slider. DETAILED DESCRIPTION

[0045] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] Example 1

[0050] Figures 1 to 5As shown, a gear rack transmission device provided in this embodiment includes: a rack 1, on which a slide groove 11 is arranged; a movable bracket 2, which has a first support portion 21 partially extending into the slide groove 11, and a second support portion 22 arranged at an angle to the first support portion 21; a plurality of balls 3, movably arranged on the first support portion 21, at least partially in contact with a groove wall of the slide groove 11; a gear 4, arranged on the second support portion 22, meshing with the rack 1, and the gear 4 is driven by an external force to drive the movable bracket 2 to reciprocate on the rack 1. In the present embodiment, the gear 4 in the present application makes reciprocating motion on the rack 1, and the maximum stroke of the gear 4 is the length of the rack 1, which solves the problem of the gear driving the rack to move in the prior art. In order to achieve a stroke of the same rack length, at least a movement space of the rack length must be reserved, resulting in a non-compact product structure. Similarly, the gear 4 moves on the rack through the movable bracket 2, and a ball 3 is provided on the first supporting portion of the movable bracket 2. The position movement in the rack slide groove 11 is achieved by the rolling of the ball 3. In essence, rolling friction is used instead of the sliding friction in the prior art, thereby reducing the friction resistance of the movable bracket 2 moving in the slide groove 11 and the contact area with the slide groove 11, thereby reducing the generation of noise.

[0051] The rack 1 in this embodiment is in the shape of a regular quadrangular prism and is made of copper metal with high structural strength. In some other implementations, it can also be made of 45 steel or other materials.

[0052] In this embodiment, the gear teeth are formed on one edge surface, and the slide groove 11 is formed on the edge surface adjacent to the gear teeth. This arrangement facilitates the installation of the movable bracket 2. In some other embodiments, the slide groove 11 can also be formed on the edge surface opposite to the gear teeth.

[0053] like Figure 1 As shown, the movable bracket 2 in this embodiment is a bent sheet metal structure, and the bending angle between the first support part 21 and the second support part 22 is 90 degrees. Its structure is simple. In some other embodiments, the connection angle between the two can also be 60 degrees, 45 degrees, etc., which are not listed here one by one.

[0054] In this embodiment, the portion of the first support portion 21 extending into the slide groove 11 does not contact the slide groove 11. In this embodiment, the first support portion 21 is placed between the upper and lower groove walls of the slide groove 11, thereby avoiding contact friction, thereby further reducing the generation of noise and the friction resistance that may be generated by contact friction.

[0055] Furthermore, the portion of the movable bracket 2 that is inserted into the slide groove 11 is provided with a plurality of receiving grooves 23, and the balls 3 are rotatably arranged in the receiving grooves 23. Figure 4As shown, the number of the receiving grooves 23 in this embodiment is three, wherein the end of the portion of the movable bracket 2 that penetrates into the slide groove 11 does not contact the bottom of the receiving groove 23 to avoid sliding friction, and at the same time, the ball 3 is rotatably arranged in the receiving groove 23. The arrangement of the receiving groove 23 can separate the balls 3 from each other, reduce collisions during rolling, and further reduce the generation of noise.

[0056] Furthermore, the accommodating groove 23 includes an introduction portion 231 formed on the second supporting portion 22 and a clamping portion 232 formed on the first supporting portion 21, the introduction portion 231 is connected to the clamping portion 232, and at least one of the balls 3 passes through the introduction portion 231 and enters the clamping portion 232. Figure 3 As shown, a ball 3 is placed on each clamping portion 232 in this embodiment. Placing a ball 3 in each receiving groove 23 can prevent contact, collision and friction between balls 3 when multiple balls 3 are placed in one receiving groove 23, thereby preventing noise from being generated.

[0057] Of course, as a preferred embodiment, a single ball 3 placement pit can be separately formed on the accommodating groove 23, and the center distance between adjacent pits is greater than the ball diameter of the ball 3. This method can realize the placement of multiple balls 3 in the same accommodating groove 23, while avoiding mutual collision between the balls 3.

[0058] In this embodiment, the minimum groove width of the clamping portion 232 is smaller than the ball diameter of the ball 3. When the gear rack motion device is assembled, the gear 4 and the rack 1 are meshed, generating downward pressure on the rack 1. This pressure is transmitted to the ball 3, so that the ball 3 abuts against the slide groove surface close to the gear 4. At the same time, the above-mentioned design method can allow the ball 3 to be received in the accommodating groove 23. The pressure on the ball 3 reacts on the movable bracket 2, and the reaction force on the gear 4 also acts on the movable bracket 2. The force on the movable bracket 2 is balanced, thereby achieving assembly cooperation among the movable bracket 2, the gear 4 and the rack 1.

[0059] This embodiment also includes: a baffle 5, which is detachably arranged on the introduction part 231, and is used to block the introduction part 231 to limit the ball 3 from sliding out of the introduction part 231, ensuring that the ball 3 will not fall out of the receiving groove 23 during the rolling process, thereby enhancing the stability and reliability of the structure.

[0060] Furthermore, a ball push rod 51 is formed on the baffle 5, and the ball push rod 51 passes through the introduction part 231 and extends into the clamping part 232 to limit the displacement of the ball 3 in the introduction direction. Generally speaking, the accommodating space of the clamping part 232 is larger than the volume of the ball 3. In order to prevent the ball 3 from running off the track during the rolling process, the use of the ball push rod reduces the activity space of the ball 3 to prevent it from running off the track.

[0061] The ball push rod 51 in this embodiment is a cylindrical rod. Of course, in some other embodiments, other shapes of cylindrical rods are also possible. There is a gap of about 0.5mm to 1mm between the top of the cylindrical rod and the ball 3. The existence of the above gap can prevent the ball push rod 51 from directly contacting the ball and crushing the ball 3, affecting the normal rotation of the ball 3.

[0062] This embodiment also includes: a motor 6, which is arranged on the second support part 22, and a gear 4 is fixed on the motor shaft of the motor 6. A motor mounting hole is provided on the second support part 22, and the motor shaft passes through the motor mounting hole, and the motor is screwed to the second support part 22 by screws. A fastening screw is provided on the gear 4, and the gear 4 is screwed on the motor shaft by the fastening screw. Of course, in some other embodiments, the gear 4 can also be pressed onto the motor shaft by an interference fit relationship with the motor shaft.

[0063] Example 2

[0064] like Figure 6 As shown, a panel translation structure provided in this embodiment includes: the rack and pinion transmission device in Example 1, the rack 1 of the rack and pinion transmission device is fixedly arranged, and in this embodiment, the rack 1 is fixed on an external frame, and a connecting plate 7 is connected to the movable bracket 2, on which a panel is arranged. The use of the above-mentioned rack and pinion transmission device reduces the driving force required for the movement of the panel, and at the same time makes the panel move more smoothly and with less noise.

[0065] This embodiment also includes: a slide rail assembly 8, which is arranged side by side with the rack 1, and has a slide rail 81 and a slider 82 movably arranged on the slide rail 81. One end of the connecting plate 7 is connected to the slider 82. The setting of the slide rail assembly 8 can make the panel move more smoothly. The connecting plate 7 in this embodiment is provided with a mounting hole, and the panel is locked to the connecting plate 7 through the above-mentioned mounting hole.

[0066] Example 3

[0067] This embodiment provides a gas stove, including the rack and pinion transmission device in Embodiment 1, or the panel translation structure in Embodiment 2, and has all the technical advantages thereof, which will not be described one by one here.

[0068] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A rack and pinion transmission device, characterized in that: include: A rack (1) having a slide groove (11) disposed thereon; A movable bracket (2) comprising a first support portion (21) partially extending into the slide groove (11), and a second support portion (22) arranged at an angle to the first support portion (21); A plurality of balls (3) movably arranged on the first supporting portion (21), at least part of which is in contact with a groove wall of the sliding groove (11); A gear (4) is arranged on the second support portion (22) and meshes with the rack (1); the gear (4) is driven by an external force to drive the movable bracket (2) to perform reciprocating motion on the rack (1); The portion of the movable bracket (2) that penetrates into the slide groove (11) is provided with a plurality of accommodating grooves (23), and the balls (3) are rotatably arranged in the accommodating grooves (23); the accommodating grooves (23) include an introduction portion (231) formed on the second supporting portion (22) and a clamping portion (232) formed on the first supporting portion (21); A baffle (5), the baffle (5) being detachably arranged on the introduction portion (231) and used for blocking the introduction portion (231) to limit the ball (3) from sliding out of the introduction portion (231); a ball push rod (51) is formed on the baffle (5), the ball push rod (51) passes through the introduction portion (231) and extends into the clamping portion (232) to limit the displacement of the ball (3) in the introduction direction.

2. The rack and pinion transmission according to claim 1, characterized in that: The portion of the first supporting portion (21) extending into the sliding groove (11) does not contact the sliding groove (11).

3. The rack and pinion transmission device according to claim 2, characterized in that: The introduction portion (231) is connected to the clamping portion (232), and at least one of the balls (3) passes through the introduction portion (231) and enters the clamping portion (232).

4. The rack and pinion transmission according to claim 3, characterized in that: The minimum groove width of the clamping portion (232) is smaller than the ball diameter of the rolling ball (3).

5. The rack and pinion transmission according to any one of claims 1 to 4, characterized in that: Also includes: The motor (6) is arranged on the second support portion (22), and the gear (4) is fixed on the motor shaft of the motor (6).

6. A panel translation structure, characterized in that: include: The rack and pinion transmission device according to any one of claims 1 to 5, wherein the rack (1) of the rack and pinion transmission device is fixedly arranged; and a connecting plate (7) connected to the movable bracket (2) and having a panel arranged thereon.

7. The panel translation structure according to claim 6, characterized in that: Also includes: The slide rail assembly (8) is arranged side by side with the rack (1), and comprises a slide rail (81) and a slider (82) movably arranged on the slide rail (81), and one end of the connecting plate (7) is connected to the slider (82).

8. A gas stove, characterized in that: include: The rack and pinion transmission device according to any one of claims 1 to 5, or The panel translation structure as described in any one of claims 6-7.

Images