Buffer capable of being adjusted to ascend and descend through tightening screw

Abstract

A buffer capable of being adjusted to ascend and descend through a fastening screw comprises a buffer body, a hoisting pulley and a hoisting clamp, the hoisting clamp is connected to the hoisting pulley through a connecting piece, the hoisting pulley comprises a pulley base, a movable block and an adjusting piece, a stroke cavity is formed in the pulley base, the movable block is arranged in the stroke cavity in a sliding fit mode, and an adjusting cavity is formed in the pulley base. The adjusting part is in threaded fit in the adjusting cavity, the inner end of the adjusting part is matched on the movable block, the adjusting part is rotated to move outwards or inwards in the adjusting cavity, and then the movable block is driven to slide up and down in the stroke cavity; stepless adjustment of the height of the door plate is achieved through linkage design of the threaded adjusting piece and the movable block, the defect that in the prior art, assemblies need to be disassembled or tools need to be used is overcome, an anti-jumping limiting structure, a tightening screw anti-loosening mechanism and sliding pin guiding optimization are matched, the structural stability of the hoisting pulley is remarkably improved, and the service life of the hoisting pulley is remarkably prolonged. The technical defects that a traditional buffer hanging wheel is tedious in adjustment, prone to loosening and poor in stability are overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to buffer technology field, concretely relates to a buffer that adjusts and lifts through the screw of tightening. BACKGROUND

[0002] In the existing slide rail buffer technical field, the buffer hanging wheel as a key component, its installation and adjustment convenience and the stability of operation are crucial for the use experience of the door plate (such as wardrobe door, cabinet door etc.

[0003] The conventional buffer hanging wheel can be basically fixed through bolt connection when installing the door plate, but there is obvious deficiency in the adjustment of the height of the door plate, referring to the Chinese utility model patent with the publication number CN220059257U and the name of a hanging door buffer, in the patent, the door plate is connected on the second hanging wheel module through bolt, due to lack of effective adjustment mechanism, in the installation and debugging process, the position of the door plate needs to be adjusted through relatively complex operation or with the help of additional tools, and it may also need to disassemble part of the components to adjust, which not only increases the complexity of operation, but also may cause damage to other components during the adjustment process, affecting the service life of the whole buffer hanging wheel. SUMMARY

[0004] In order to overcome the deficiency of the prior art, the utility model provides a buffer that adjusts and lifts through the screw of tightening.

[0005] The utility model solves the technical problems employing the technical scheme that:

[0006] A buffer that adjusts and lifts through the screw of tightening, including buffer main part, hoist pulley and hanger, the hoist pulley is connected in one end of buffer main part, the hanger is connected on the hoist pulley through connecting piece, the hoist pulley includes pulley seat, movable block and adjusting part, the inside of pulley seat is equipped with stroke chamber, the movable block is slidably fitted in stroke chamber, the connecting piece is specifically connected on movable block, the pulley seat is equipped with adjusting chamber still, adjusting chamber is communicated stroke chamber, the adjusting part is screwed in adjusting chamber, the inner end of adjusting part is fitted on movable block, the rotation adjusting part makes it move outward or inward in adjusting chamber, and then drives movable block to slide up and down in stroke chamber.

[0007] Further, the stroke chamber penetrates the pulley seat along the vertical direction to form the stroke channel for the up and down sliding of the movable block, and the profile of the stroke channel is adapted to the profile of the movable block.

[0008] Further, one end of the adjusting chamber is communicated to one side of the stroke channel, and the other end extends downwardly and outwardly, and the extending direction of the adjusting chamber is arranged at an angle of 45 degrees with the stroke channel.

[0009] In the utility model, the linkage surface is arranged on one side of the movable block close to the adjusting part, and the adjusting part is inclined to the stroke channel along the 45-degree direction, and the adjusting part is abutted on the linkage surface along the normal direction, and the movable block is pressed against the adjusting part through the linkage surface after the gravity of the door plate acts on the movable block, and when the adjusting part moves inwardly, the inner end surface of the adjusting part pushes the movable block through the linkage surface, and the movable block moves upwardly along the stroke channel, and the linkage surface slides upwardly relative to the adjusting part; when the adjusting part moves outwardly, the movable block moves downwardly due to the gravity, and the linkage surface slides downwardly relative to the inner end surface of the adjusting part.

[0010] Further, the linkage groove is arranged on one side of the movable block close to the adjusting part, the groove bottom of the linkage groove is a right-angle structure, and the upper groove surface of the linkage groove is the linkage surface.

[0011] Further, the limiting structure in the U-shaped structure is arranged on the lower groove surface of the linkage groove and extends along the normal direction of the lower groove surface, the annular notch is arranged on the adjusting part close to the inner end surface, and the limiting structure is clamped into the annular notch to form the limiting.

[0012] In the utility model, the connecting chamber with the downward opening is arranged on the bottom of the movable block, and the connecting part is matched in the connecting chamber.

[0013] Further, the positioning hole is further arranged on one side of the bottom of the movable block, one end of the positioning hole is communicated with the connecting chamber, the other end extends outwardly, the tight nail screw is further arranged in the positioning hole, the tight nail screw is threadedly matched in the positioning hole, after the connecting part is matched in the connecting chamber, the tight nail screw is screwed inwardly and abutted on the side of the connecting part to form the limiting.

[0014] Further, the stroke holes are arranged on the two side walls of the stroke channel, the stroke holes extend along the vertical direction, the sliding pin is further arranged on the movable block, the sliding pin vertically penetrates the movable block, and the two ends of the sliding pin are slidably matched in the stroke holes.

[0015] The utility model has the following advantages and beneficial effects:

[0016] The linkage design of the thread adjusting part and the movable block realizes the stepless adjustment of the height of the door plate, solves the defects that the traditional technology needs to disassemble the components or relies on tools, cooperates with the anti-bouncing limiting structure, the tight nail screw anti-loosening mechanism and the sliding pin guiding optimization, significantly improves the structural stability and service life of the hoisting pulley, and solves the technical defects that the traditional buffer pulley adjustment is complicated, easy to loosen and poor in stability. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the buffer structure in this embodiment;

[0019] Figure 2 This is an exploded view of the hoisting pulley in this embodiment;

[0020] Figure 3 This is a cross-sectional view of the downward adjustment of the movable block inside the hoisting pulley in this embodiment;

[0021] Figure 4 This is a cross-sectional view showing the upward adjustment of the movable block inside the hoisting pulley in this embodiment;

[0022] Figure 5 This is a schematic diagram of the active block in this embodiment;

[0023] Figure 6 A schematic diagram of the stepped connector in another embodiment;

[0024] Figure 7 A schematic diagram of the installation of the stepped connector in another embodiment. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. However, this utility model is not limited to the following embodiments.

[0026] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if the description of "first" or "second" and the like is involved in the embodiments of the utility model, the description of "first" or "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0028] As shown in Figures 1 to 5 The utility model discloses a buffer that adjusts lifting through tight nail screw, including buffer main body 1, hoist pulley 2 and hanging clamp 3, hoist pulley 2 is connected in one end of buffer main body 1, hanging clamp 3 is connected on hoist pulley 2 through connecting piece 4, hoist pulley 2 includes pulley seat 21, movable block 22 and adjusting part 23, the inside of pulley seat 21 is equipped with stroke chamber 210, movable block 22 is slidably fitted in stroke chamber 210, hanging clamp 3 is connected on movable block 22, pulley seat 21 is equipped with adjusting chamber 211 still, adjusting chamber 211 is communicated stroke chamber 210, adjusting part 23 is screwed in adjusting chamber 211, and the inner end of adjusting part 23 is fitted on movable block 22, when rotating adjusting part 23, it can make it move outward or inward in adjusting chamber 211, when adjusting part 23 moves outward, movable block 22 is driven to slide down, when adjusting part 23 moves inward, movable block 22 is driven to slide up, and the door plate connected on movable block 22 through hanging clamp 3 realizes up and down adjustment, specifically, stroke chamber 210 is along vertical direction and penetrates the movable seat to form the stroke passageway 212 for the up and down sliding of movable block 22, the contour of stroke passageway 212 is adapted to the contour of movable block 22, so that movable block 22 can slide more stably in stroke passageway 212 and reduce resistance, preferably, adjusting chamber 211 is screw hole, and one end of screw hole is communicated to one side of stroke passageway 212, and the other end of screw hole extends downward and out, specifically, the extension direction of screw hole is arranged at 45 ° angle with stroke passageway 212.

[0029] In the embodiment, in order to realize the linkage between the adjusting member 23 and the movable block 22, a linkage surface 220 is arranged on the movable block 22 near the side of the adjusting member 23, the linkage surface 220 is inclined to the stroke channel 212 along the 45° direction, the inner end surface of the adjusting member 23 is abutted to the linkage surface 220 along the normal direction, and the movable block 22 is pressed against the adjusting member 23 through the linkage surface 220 after being subjected to the gravity of the door plate, when the adjusting member 23 moves inward, the inner end surface of the adjusting member 23 pushes the movable block 22 through the linkage surface 220, and the movable block 22 moves upward along the stroke channel 212, at the same time, the linkage surface 220 slides upward relative to the inner end surface of the adjusting member 23, when the adjusting member 23 moves outward, the movable block 22 moves downward due to the gravity, at the same time, the linkage surface 220 slides downward relative to the inner end surface of the adjusting member 23, thereby realizing the up-down adjustment, and the specific structure is that a linkage groove 221 is arranged on the movable block 22 near the side of the adjusting member 23, the groove bottom of the linkage groove 221 is a right angle structure, and the upper groove surface of the linkage groove 221 is the linkage surface 220.

[0030] Further, since the movable block 22 is pressed against the adjusting member 23 through the gravity of the door plate, the door plate is prone to jumping during the movement or when subjected to external force, thereby causing the movable block 22 to move up and down in the stroke channel 212, which not only affects the structural stability, but also affects the connection stability of the door plate, in order to avoid this phenomenon, a limiting structure 222 in U-shaped structure is arranged on the lower groove surface of the linkage groove 221, the limiting structure 222 extends along the normal direction of the lower groove surface, that is, the 45° direction, and a ring-shaped notch is arranged on the adjusting member 23 near the inner end surface, the limiting structure 222 in U-shaped structure is clamped into the ring-shaped notch to form limiting, thereby avoiding the random jumping of the movable block 22 and ensuring the structural stability.

[0031] In the embodiment, in order to facilitate the connection of the hanger 3, a downwardly opening connection chamber 223 is arranged at the bottom of the movable block 22, the connecting member 4 is threadedly fitted in the connection chamber 223 from bottom to top, therefore, the connecting member 4 is connected to the door plate through the hanger 3, and vibration is generated during the movement of the door plate, the vibration can cause the loosening of the fitting between the connecting member 4 and the connection chamber 223, therefore, a positioning hole 224 is further arranged on one side of the bottom of the movable block 22, one end of the positioning hole 224 is communicated with the connection chamber 223, and the other end extends outward, and in addition, a tight bolt screw 225 is further arranged in the positioning hole 224, the tight bolt screw 225 is threadedly fitted in the positioning hole 224, when the connecting member 4 is fitted in the connection chamber 223, the tight bolt screw 225 is tightened inward and abutted to the side of the connecting member 4 to form limiting, thereby avoiding the loosening of the fitting between the connecting member 4 and the connection chamber 223.

[0032] In the embodiment, in order to improve the smoothness of the movement of the movable block 22 in the stroke channel 212, stroke holes 213 are arranged on the two side walls of the stroke channel 212, the stroke holes 213 extend in the vertical direction, and in addition, a sliding pin 226 is arranged on the movable block 22, the sliding pin 226 vertically penetrates the movable block 22, and the two ends of the sliding pin 226 are slidingly fitted in the stroke holes 213, preferably, the middle part of the movable block 22 is provided with a through hole, and the sliding pin 226 is interference-fitted in the through hole.

[0033] Not limited to the above embodiments, as shown in Figures 6 to 7 The hanging clamp can also be replaced by a stepped connecting piece 5 for connecting the door panel of the full-cover frame or other accessories, the stepped connecting piece 5 is a reverse “T” shaped structure, the top of the stepped connecting piece 5 is connected with the movable block through the connecting piece 4, and the bottom of the stepped connecting piece 5 is assembled on the top of the door panel or other accessories and is fixed through a screw, specifically, a T-shaped groove is arranged on the top of the door panel or other accessories, and the bottom of the stepped connecting piece 5 is assembled into the T-shaped groove.

[0034] The above described in the specification of the present application is only an example of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the content of the specification of the present application or exceed the scope defined by the claims, and they should belong to the protection scope of the present application.

Claims

1. A buffer that is adjustable in height by means of a tightening screw, comprising a buffer body (1), a lifting pulley (2), and a lifting clamp (3), wherein the lifting pulley (2) is connected to one end of the buffer body (1), and the lifting clamp (3) is connected to the lifting pulley (2) via a connector (4), characterized in that, The hoisting pulley (2) includes a pulley seat (21), a movable block (22), and an adjusting member (23). The pulley seat (21) has a stroke chamber (210) inside. The movable block (22) is slidably fitted in the stroke chamber (210). The connecting member (4) is specifically connected to the movable block (22). The pulley seat (21) also has an adjusting chamber (211) which is connected to the stroke chamber (210). The adjusting member (23) is threadedly fitted in the adjusting chamber (211). The inner end of the adjusting member (23) is fitted on the movable block (22). Rotating the adjusting member (23) causes it to move outward or inward in the adjusting chamber (211), thereby driving the movable block (22) to slide up and down in the stroke chamber (210).

2. The buffer with adjustable height via a tightening screw as described in claim 1, characterized in that, The travel chamber (210) extends vertically through the pulley seat (21) to form a travel channel (212) for the movable block (22) to slide up and down. The outline of the travel channel (212) is adapted to the outline of the movable block (22).

3. The buffer with adjustable lifting and lowering via a tightening screw as described in claim 2, characterized in that, One end of the adjustment chamber (211) is connected to one side of the travel channel (212), and the other end extends downward at an angle. The extension direction of the adjustment chamber (211) is set at a 45° angle with the travel channel (212).

4. The buffer with adjustable lifting and lowering via a tightening screw according to claim 2, characterized in that, A linkage surface (220) is provided on the side of the movable block (22) near the adjusting member (23). The linkage surface (220) is inclined at 45° to the travel channel (212). The adjusting member (23) abuts against the linkage surface (220) in the normal direction. After the movable block (22) is subjected to the gravity of the door panel, it presses the adjusting member (23) through the linkage surface (220). When the adjusting member (23) moves inward, its inner end face pushes the movable block (22) through the linkage surface (220). The movable block (22) moves upward along the travel channel (212), and at the same time, the linkage surface (220) slides upward relative to the adjusting member (23). When the adjusting member (23) moves outward, the movable block (22) moves downward due to gravity, and at the same time the linkage surface (220) slides downward relative to the inner end surface of the adjusting member (23).

5. The buffer with adjustable lifting and lowering via a tightening screw according to claim 4, characterized in that, A linkage groove (221) is provided on the side of the movable block (22) near the adjusting member (23). The bottom of the linkage groove (221) is a right-angle structure, and the upper groove surface of the linkage groove (221) is set as the linkage surface (220).

6. The buffer with adjustable lifting and lowering via a tightening screw according to claim 5, characterized in that, A U-shaped limiting structure (222) is provided on the lower groove surface of the linkage groove (221). The limiting structure (222) extends along the normal direction of the lower groove surface. An annular notch is provided on the adjusting member (23) near the inner end face. The limiting structure (222) is inserted into the annular notch to form a limit.

7. The buffer with adjustable lifting and lowering via a tightening screw according to claim 1, characterized in that, A downward-opening connecting chamber (223) is provided at the bottom of the movable block (22), and the connector (4) is fitted into the connecting chamber (223).

8. The buffer with adjustable lifting and lowering via a fastening screw according to claim 7, characterized in that, A positioning hole (224) is provided on one side of the bottom of the movable block (22). One end of the positioning hole (224) is connected to the connecting chamber (223), and the other end extends outward. A fastening screw (225) is also provided in the positioning hole (224). The fastening screw (225) is threaded into the positioning hole (224). When the connector (4) is fitted into the connecting chamber (223), the fastening screw (225) is screwed inward and abuts against the side of the connector (4) to form a limit.

9. The buffer with adjustable lifting and lowering via a tightening screw according to claim 2, characterized in that, A stroke hole (213) is provided on both sides of the stroke channel (212). The stroke hole (213) extends vertically. A sliding pin (226) is also provided on the movable block (22). The sliding pin (226) passes vertically through the movable block (22), and the two ends of the sliding pin (226) are slidably engaged in the stroke hole (213).

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