Resettable synchronous gear rack silencing mechanism

Abstract

The utility model relates to a resettable synchronous gear rack silencing mechanism which comprises a fixing seat and a sliding block. A rack and a sliding rail are installed in the fixing base, the rack is divided into a toothed area and a toothless area, and the transition position of the toothed area and the toothless area is detachably connected with silencing blocking glue. The noise reduction device has the advantages that the sliding block reciprocates along the sliding rail, the gear rotates synchronously to drive the sliding block to move along the direction of the rack, when the gear is transited from a toothed area to a toothless area, teeth of the gear are meshed with the noise reduction blocking rubber, the noise reduction blocking rubber is meshed with the sliding rail, and the noise reduction effect is good. And the noise reduction blocking rubber has elasticity, so that noise caused by tooth beating due to direct meshing is avoided, and the noise reduction performance of the sliding rail is improved.

Description

Technical Field

[0001] The utility model relates to a slide rail structure, in particular to a resettable synchronous gear rack silencer mechanism. Background Art

[0002] Slide rails, also known as guide rails and slideways, refer to the connecting parts fixed in furniture and mechanical equipment to enable the drawers or cabinet panels in the equipment to move in and out and telescope. Slide rails can be divided into roller type, steel ball type and gear type according to the transmission method. Slide rails are widely used in various mechanical equipment and household appliances, including cabinets, furniture, document cabinets, bathroom cabinets and other wooden and steel drawers.

[0003] Among them, gear-type slide rails are widely used in refrigerator drawers. During the process of pulling out the drawer, the gear and the rack are directly engaged, which causes rattling and noise, affecting the user experience.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model discloses a resettable synchronous gear rack silencer mechanism.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A resettable synchronous gear rack silencer mechanism comprises a fixed seat and a slider; a rack and a slide rail are installed in the fixed seat, the rack is divided into a toothed area and a toothless area, and a transition between the toothed area and the toothless area is detachably connected with a silencer rubber; the slider is slidably matched with the slide rail, a gear is rotatably connected to the slider, and the gear and the rack are meshed.

[0008] Furthermore, a slot is provided at an edge of the toothed area close to the toothless area, and the sound-absorbing rubber is inserted into the slot.

[0009] Furthermore, the sound-absorbing rubber barrier includes a card joint 1 and a card joint 2, and the card joint 1 and the card joint 2 are respectively arranged at the two ends of the sound-absorbing rubber barrier, the bottom of the card joint 1 is against the top surface of the card slot, and the card joint 2 is inserted into the card slot and against its inner wall.

[0010] Furthermore, the diameter of the clamping joint 1 gradually decreases from the inside to the outside along the axial direction of the sound-absorbing rubber stop.

[0011] Furthermore, the diameter of the second clamping joint gradually decreases from the inside to the outside along the axial direction of the sound-absorbing rubber stopper, and the maximum diameter of the second clamping joint is smaller than the maximum diameter of the first clamping joint.

[0012] Furthermore, a socket is provided on the side of the fixing seat, and when the sound-absorbing rubber stopper is removed, the sound-absorbing rubber stopper is inserted into the socket.

[0013] Furthermore, the edge of the toothed area close to the toothless area is provided with gradual teeth.

[0014] Furthermore, the height of the gradual teeth gradually decreases from the inside to the outside along the length direction of the rack.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. When the drawer is pulled out, the slider reciprocates along the slide rail, and the synchronous gear rotates, driving it to move along the rack direction. When the gear transitions from the toothed area to the toothless area, the gear teeth and the silencer rubber mesh. Since the silencer rubber itself is elastic, the noise caused by tooth hitting is avoided in direct meshing, thereby improving the silencer performance of the slide rail.

[0017] 2. Determine the installation position of the silencer rubber by the slot to improve the installation accuracy and ensure that the gear is meshed with the silencer rubber at the designed transition position.

[0018] 3. The clamping joint 1 and the clamping joint 2 are limited from the upper and lower directions so that the silencer rubber stopper can be firmly clamped in the slot to prevent the silencer rubber from axial movement during operation.

[0019] 4. The diameter of the clamping joint 1 gradually decreases from the inside to the outside along the axial direction. The side surface of the clamping joint 1 is an inclined surface, which matches the shape of the teeth in the toothed area, which is beneficial to improving the meshing fit of the silencer rubber.

[0020] 5. The diameter of the second card connector gradually decreases from the inside to the outside along the axial direction. During the installation process, the second card connector is pressed down in the card slot. When the silencer rubber is pulled out along the axial direction, it will be blocked by the second card connector, which reduces the situation where the silencer rubber easily falls out of the card slot during use.

[0021] 6. The rack is divided into a toothed area and a toothless area. If there is a tooth misalignment in the toothed area, the gear moves to the toothless area as the slider moves, and the gear and the toothed area disengage. Then, during the reset of the slider, the gear and the toothed area re-engage and automatically reset to correct the tooth misalignment.

[0022] 7. The height of the teeth of the gradient teeth gradually decreases from the inside to the outside, which makes it easier for the gear to partially match the gradient teeth first, and then gradually engage in depth, avoiding direct tooth knocking and helping to reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the structure of a resettable synchronous gear rack silencer mechanism.

[0024] Figure 2 Schematic diagram of the meshing structure of gear and rack.

[0025] Figure 3 This is a schematic diagram of the structure in the card slot for installing the sound-absorbing adhesive.

[0026] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] Figure 5 This is a schematic diagram of the structure after the sound-absorbing rubber is removed.

[0028] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0029] In the figure: 1. fixing seat; 11. slide rail; 12. socket; 2. rack; 21. toothed area; 22. toothless area; 23. slot; 24. gradient teeth; 3. sound-absorbing rubber; 31. card connector 1; 32. card connector 2; 4. slider; 41. gear. DETAILED DESCRIPTION

[0030] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0031] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0032] Example:

[0033] A resettable synchronous gear 41 rack 2 silencer mechanism, such as Figure 1 As shown, it includes a fixing seat 1 and a slider 4, and the slider 4 is slidably connected in the fixing seat 1. The mechanism is applied in a refrigerator drawer, and the refrigerator drawer performs a pulling and reciprocating motion, and the slider 4 slides in the fixing seat 1.

[0034] like Figure 1As shown, the slider 4 is rotatably connected with a gear 41.

[0035] Combination Figure 1 and Figure 2 As shown, a rack 2 and a slide rail 11 are installed in the fixed seat 1. The slide rail 11 is located on the side of the fixed seat 1 and is arranged along the length direction of the fixed seat 1. The slide rail 11 and the slider 4 are slidably matched. The rack 2 is located at the bottom of the fixed seat 1 and is below the slide rail 11. Similarly, the rack 2 is arranged along the length direction of the fixed seat 1. The gear 41 is meshed with the rack 2, as shown in FIG. Figure 2 The middle arrow points to the movable direction of the gear 41. When the slide block 4 moves on the slide rail 11, the gear 41 rotates, and the gear 41 moves on the rack 2 synchronously.

[0036] Combination Figure 2 and Figure 3 As shown, the rack 2 is divided into a toothed area 21 and a toothless area 22. In this embodiment, the number of toothed areas 21 is set to two, and the number of toothless areas 22 is set to one, and the toothless area 22 is located between the two toothed areas 21. The edge of the toothed area 21 near the toothless area 22 is provided with a gradual tooth 24, and the height of the gradual tooth 24 gradually decreases from the inside to the outside along the length direction of the rack 2. When the gear 41 moves from the toothless area 22 to the edge of the toothed area 21, the teeth of the gear 41 first mesh with the gradual teeth 24, and gradually the teeth of the gear 41 mesh with the teeth of the toothed area 21, the transition is smoother, the occurrence of tooth knocking is reduced, and it is helpful to reduce noise. Every time the gear 41 moves from the toothless area 22 to the toothed area 21, it is a process of re-engaging. Some tooth misalignment that occurred previously can be immediately reset when re-engaging.

[0037] Combination Figure 3 and Figure 4 As shown, a slot 23 is formed at the edge of the toothed area 21 near the toothless area 22. A sound-absorbing rubber stopper 3 is detachably connected to the slot 23, that is, the sound-absorbing rubber stopper 3 is arranged at the transition between the toothed area 21 and the toothless area 22. The sound-absorbing rubber stopper 3 is made of a soft material, such as rubber, which has good elasticity and noise absorption performance. The sound-absorbing rubber stopper 3 is meshed with the gear 41 without generating any impact noise.

[0038] like Figure 4 As shown, the sound-absorbing rubber stopper 3 includes a clamping joint 1 31 and a clamping joint 2 32, which are respectively arranged at the two ends of the sound-absorbing rubber stopper 3. The bottom of the clamping joint 1 31 abuts against the top surface of the card slot 23, and the clamping joint 2 32 is inserted into the card slot 23 and abuts against its inner wall, so that both ends of the sound-absorbing rubber stopper 3 are constrained to prevent the sound-absorbing rubber stopper 3 from moving up and down and thus escaping from the card slot 23 during use.

[0039] like Figure 4As shown, the diameter of the first clamping joint 31 gradually decreases from the inside to the outside along the axial direction of the silencer rubber stopper 3, and the cross section of the first clamping joint 31 is an isosceles trapezoid, which is similar to the tooth shape of the rack 2, and is convenient for meshing with the gear 41. The diameter of the second clamping joint 32 gradually decreases from the inside to the outside along the axial direction of the silencer rubber stopper 3, and the maximum diameter of the second clamping joint 32 is smaller than the maximum diameter of the first clamping joint 31. The cross section of the second clamping joint 32 is approximately trapezoidal, and the side of the second clamping joint 32 is set as an arc surface to prevent the second clamping joint 32 from having sharp edges that hinder the insertion into the card slot 23.

[0040] Combination Figure 5 and Figure 6 As shown, a socket 12 is provided on the side surface installed on the fixing seat 1. When the sound-absorbing rubber stopper 3 is removed, the sound-absorbing rubber stopper 3 is inserted into the socket 12 to avoid the situation where the sound-absorbing rubber stopper 3 is lost due to random placement.

[0041] Specific working process:

[0042] When the drawer is pulled out, the slider 4 slides outward along the slide rail 11, and the gear 41 rotates at the same time. The gear 41 first passes through the inner toothed area 21. When the gear 41 moves to the edge of the toothed area 21, the gear 41 meshes with the muffler rubber 3 to reduce the noise caused by tooth hitting, and passes through the gradient teeth 24. Then the gear 41 moves through the toothless area 22, and finally the gear 41 enters the outer toothed area 21. The gear 41 first passes through the gradient teeth 24, and the gear 41 meshes with the muffler rubber 3 to also reduce the noise caused by tooth hitting. Finally, the gear 41 meshes with the outer toothed area 21. If there is a misaligned tooth before, the gear 41 and the toothed area 21 can be re-engaged to correct it. When the drawer is reset, the above process is reversed.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A resettable synchronous gear rack silencer mechanism, characterized in that: Including a fixed seat and a slide block; A rack and a slide rail are installed in the fixing seat, the rack is divided into a toothed area and a toothless area, and a transition between the toothed area and the toothless area is detachably connected with a sound-absorbing rubber stopper; The slider is slidably matched with the slide rail, and a gear is rotatably connected to the slider, and the gear is meshed with the rack.

2. The resettable synchronous rack and pinion silencer mechanism according to claim 1, characterized in that: A slot is formed at the edge of the toothed area close to the toothless area, and the sound-absorbing rubber is inserted into the slot.

3. The resettable synchronous rack and pinion silencer mechanism according to claim 2, characterized in that: The sound-absorbing rubber barrier includes a first card joint and a second card joint, and the first card joint and the second card joint are respectively arranged at the two ends of the sound-absorbing rubber barrier, the bottom of the first card joint abuts against the top surface of the card slot, and the second card joint is inserted into the card slot and abuts against its inner wall.

4. The resettable synchronous rack and pinion silencer mechanism according to claim 3, characterized in that: The diameter of the clamping joint 1 gradually decreases from the inside to the outside along the axial direction of the sound-absorbing rubber stopper.

5. The resettable synchronous gear rack silencer mechanism according to claim 4, characterized in that: The diameter of the second clamping joint gradually decreases from the inside to the outside along the axial direction of the sound-absorbing rubber stopper, and the maximum diameter of the second clamping joint is smaller than the maximum diameter of the first clamping joint.

6. The resettable synchronous rack and pinion silencer mechanism according to claim 1, characterized in that: A socket is provided on the side of the fixing seat, and when the sound-absorbing rubber stopper is removed, the sound-absorbing rubber stopper is inserted into the socket.

7. The resettable synchronous rack and pinion silencer mechanism according to claim 1, characterized in that: The edge of the toothed area close to the toothless area is provided with gradual teeth.

8. The resettable synchronous rack and pinion silencer mechanism according to claim 7, characterized in that: The height of the gradual teeth gradually decreases from the inside to the outside along the length direction of the rack.

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