Improved drawer slide for laboratory bench cabinet

Abstract

The application relates to an improved drawer sliding channel of a laboratory bench cabinet, which comprises a bench cabinet main body, a drawer main body and a sliding assembly. The bench cabinet main body is provided with a sliding area. The drawer main body and the bench cabinet main body slide along the sliding area through the sliding assembly. The sliding assembly comprises a first pulley, a second pulley and a guide rail. The guide rail is arranged in the sliding area along the length direction of the sliding area. The first pulley is rotationally connected to one end of the drawer main body in the sliding area. The second pulley is rotationally borne on the end of the guide rail away from the first pulley. The height of the second pulley along the sliding area is higher than the height of the first pulley. When the drawer main body moves along the sliding area, the first pulley slides along the guide rail. When the first pulley and the second pulley abut each other, the drawer main body moves along the bench cabinet main body to the limit position. The application has the effect of improving the smoothness of the drawer applied to the laboratory bench cabinet during the opening and closing process of the laboratory bench.

Description

Technical Field

[0001] This application relates to the field of laboratory benches, and in particular to an improved laboratory bench cabinet drawer slide. Background Technology

[0002] As a core infrastructure for scientific experiments, the laboratory bench integrates a ventilation system, fireproof and explosion-proof cabinets, and emergency shower devices to construct a multi-layered safety protection system. For example, local exhaust hoods can control the concentration of harmful gases within safe thresholds. The modular design allows for flexible layout adjustments, while intelligent power supplies and digitally controlled flow valves improve operational precision. From acid- and alkali-resistant work surfaces in chemistry labs to sterile operating tables in biology labs, the laboratory bench avoids cross-contamination through functional zoning and storage, adapting to the needs of multiple disciplines.

[0003] Commonly used drawer slides mainly consist of a track system and rolling components. Among them, the three-section ball bearing slide, including the inner rail, middle rail and outer rail, achieves the push-pull operation through a nested structure. The principle is that steel balls are densely distributed between the inner rail, middle rail and outer rail, and the pressure is distributed with the ball bearing bracket, so that the drawer can slide smoothly along the laboratory table cabinet.

[0004] In practical applications, due to the specific usage scenarios of laboratory benches and cabinets, the drawers of the laboratory benches do not need to store a lot of heavy items. During the experimental operation, in order to avoid contaminating the experimental items, the personnel need to frequently open and close the drawers to retrieve the experimental items inside. The problem with the drawer slide structure described above is that, since the outer rail, middle rail, and inner rail are interconnected, and the outer rail is connected to the drawer, it is inconvenient for the personnel to remove the drawer from the laboratory bench or install the drawer on the laboratory bench. Furthermore, with the increase in the number of times the drawer is opened and closed, the steel balls themselves or the contact surfaces in contact with the steel balls are affected by rolling friction, which will cause irreversible mechanical wear, resulting in loosening or jamming of the drawer during the sliding process of the laboratory bench. There is room for improvement. Utility Model Content

[0005] The purpose of this utility model is to improve the smoothness of the opening and closing of drawers in laboratory bench cabinets. This application provides an improved drawer slide for laboratory bench cabinets.

[0006] To achieve the above objectives, the improved drawer slide of the laboratory bench cabinet provided in this application adopts the following technical solution:

[0007] An improved laboratory bench cabinet drawer slide includes a cabinet body, a drawer body, and a sliding assembly. The cabinet body has a sliding area. The drawer body and the cabinet body slide along the sliding area via the sliding assembly. The sliding assembly includes a first pulley, a second pulley, and a guide rail. The guide rail is disposed within the sliding area along its length. The first pulley is rotatably connected to one end of the drawer body located within the sliding area. The second pulley is rotatably supported by the guide rail at the end away from the first pulley. The height of the second pulley along the sliding area is higher than the height of the first pulley. When the drawer body moves along the sliding area, the first pulley slides along the guide rail. When the first pulley and the second pulley abut against each other, the drawer body moves to its limit position along the cabinet body.

[0008] Preferably, the drawer body is provided with an auxiliary guide plate along its length, the guide rail is provided with a limiting groove along its length, the auxiliary guide plate slides in cooperation with the limiting groove, and the width of the limiting groove is greater than the width of the auxiliary guide plate.

[0009] Preferably, the guide rail is provided with a mounting base, the second pulley is rotatably connected to the mounting base, and the mounting base is provided with a plurality of protruding teeth, which abut against the surface of the guide rail.

[0010] Preferably, the auxiliary guide plate is provided with an inclined guide portion at one end near the second pulley, and the angle of inclination of the inclined guide portion is equal to the angle formed by the first pulley and the second pulley in the horizontal direction in the initial state.

[0011] Preferably, the width of the guide rail and the thickness of the first pulley are in a clearance fit.

[0012] Preferably, a magnetic attractor is provided at one end of the sliding area near the first pulley, and the magnetic attractor is magnetically attracted to the drawer body.

[0013] Preferably, the guide rail is provided with a first magnetic sheet along its length, and the auxiliary guide plate is provided with a second magnetic sheet along its length, wherein the first magnetic sheet and the second magnetic sheet have the same magnetic poles that repel each other.

[0014] Compared with the prior art, this utility model provides an improved drawer slide for a laboratory bench cabinet, which has the following advantages:

[0015] 1. The drawer body slides smoothly along the cabinet body via a sliding assembly. The first pulley is rotatably connected to the drawer body, and the second pulley is rotatably connected to the guide rail. As the drawer body slides along the sliding area, the first pulley rotates along the guide rail. Simultaneously, the second pulley supports and guides the end of the drawer body furthest from the first pulley. Because the height of the second pulley along the sliding area is higher than that of the first pulley, when the drawer body reaches its limit position along the cabinet body, the second pulley's blocking action restricts further sliding along the sliding area, reducing the probability of the drawer body accidentally falling off the guide rail. Furthermore, when it is necessary to remove the drawer body along the sliding area, simply tilt the drawer body upwards along the sliding area and continuously pull the drawer body, causing the first and second pulleys to be misaligned, allowing the drawer body to be removed from the cabinet body. This method is simple to operate and highly stable. The cooperation of the first and second pulleys increases the contact area with the guide rail, slowing down the rate of mechanical wear caused by sliding friction on the first pulley, second pulley, and guide rail.

[0016] 2. The second pulley is rotatably connected to the mounting base, and the mounting base has several protruding teeth. These teeth help increase the friction between the mounting base and the guide rail, reducing the possibility of the second pulley causing the mounting base to rotate along the guide rail during rotation. This would prevent the second pulley from causing the mounting base to rotate while the second pulley and the mounting base are in a relatively stationary state. Consequently, the second pulley would stop rotating during the sliding of the drawer body along the sliding area, leading to single-point wear on the second pulley.

[0017] 3. Since the angle of inclination of the inclined guide is equal to the angle formed by the first pulley and the second pulley in the initial state along the horizontal direction, when the drawer body is located inside the cabinet body, the drawer body is in a horizontal state along the cabinet body. Through the limiting effect of the inclined guide, the probability of the drawer body opening along the cabinet body is effectively solved when the drawer body is not subjected to external force but the cabinet body is in an inclined state. At the same time, when the drawer body slides along the cabinet body, through the guiding effect of the inclined guide, the drawer body opens in an inclined state along the cabinet body during the movement of the drawer body away from the cabinet body along the sliding area, avoiding the problem of experimental items tipping over when the drawer body tilts downward along the cabinet body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an improved experimental bench cabinet drawer slide according to an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the overall structure of the drawer body in the drawer slide of an improved experimental bench cabinet in an embodiment of this application, when the drawer body is in the open state along the main body of the bench cabinet.

[0020] Figure 3 This is a schematic diagram showing the cooperation relationship between the drawer body and the auxiliary guide plate in an improved experimental bench drawer slide according to an embodiment of this application.

[0021] Figure 4 This is a schematic diagram illustrating the cooperation relationship between the guide rail and the auxiliary guide plate in an improved experimental bench drawer slide according to an embodiment of this application.

[0022] Figure 5 yes Figure 4 An exploded structural diagram showing the fit between the guide rail and the auxiliary guide plate in the drawer slide of an improved experimental table cabinet along the indicated axis.

[0023] Figure 6 This is a schematic diagram showing the cooperation relationship between the mounting base and the second pulley in an improved experimental bench drawer slide according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Cabinet body; 11. Door stop; 2. Drawer body; 3. Sliding assembly; 31. First pulley; 32. Second pulley; 33. Guide rail; 331. Limiting groove; 4. Sliding area; 5. Auxiliary guide plate; 6. Mounting base; 61. Protruding tooth; 62. Connecting shaft; 621. Rotary bearing; 7. Inclined guide part; 8. Magnetic suction component; 9. First magnetic piece; 10. Second magnetic piece. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses an improved drawer slide for a laboratory bench cabinet. (Refer to...) Figure 1 and Figure 2 An improved experimental bench cabinet drawer slide includes a cabinet body 1, a drawer body 2, and a sliding assembly 3. The cabinet body 1 is provided with a sliding area 4. The drawer body 2 and the cabinet body 1 slide along the sliding area 4 via the sliding assembly 3. The sliding assembly 3 includes a first pulley 31, a second pulley 32, and a guide rail 33. The guide rail 33 is arranged in the sliding area 4 along its length. The first pulley 31 is rotatably connected to one end of the drawer body 2 located in the sliding area 4. The second pulley 32 is rotatably supported by the end of the guide rail 33 away from the first pulley 31. The height of the second pulley 32 along the sliding area 4 is higher than the height of the first pulley 31. When the drawer body 2 moves along the sliding area 4, the first pulley 31 slides along the guide rail 33. When the first pulley 31 and the second pulley 32 abut against each other, the drawer body 2 moves to its limit position along the cabinet body 1.

[0027] Specifically, the outline of the main body 1 of the cabinet can be changed according to design and usage requirements, and its specific shape is not limited here. The number of drawer bodies 2 can also be increased or decreased according to the size of the main body 1 of the cabinet and usage requirements. Each drawer body 2 slides along the sliding area 4 through the sliding component 3 to slide with the main body 1 of the cabinet. For ease of explanation, the following will describe in detail the cooperation between one drawer body 2 and the main body 1 using the sliding component 3.

[0028] Furthermore, the sliding area 4 is formed by bolting together metal materials. The cabinet body 1 located below the sliding area 4 is also provided with a placement area. The placement area is shielded by a door 11 to facilitate the storage of experimental items in the placement area and to protect the experimental items in the placement area from damage or contamination.

[0029] Among them, the sliding component 3 is provided in two sets. The two sets of guide components are located at both ends of the drawer body 2 along the width direction. Since the two sets of sliding components 3 cooperate with the drawer body 2 and the cabinet body 1 in the same way, one set of sliding components 3 will be described in detail below.

[0030] Correspondingly, the guide rail 33 is fixed to the inner wall of the sliding area 4 by bolts along the length of the main body 1 of the cabinet.

[0031] Reference Figure 4 , Figure 5 and Figure 6 A mounting base 6 is provided on the guide rail 33. The second pulley 32 is rotatably connected to the mounting base 6. Several protruding teeth 61 are provided on the mounting base 6, and the several protruding teeth 61 abut against the surface of the guide rail 33.

[0032] First, it should be noted that in this embodiment, the first pulley 31 and the drawer body 2 are connected in the same way as the second pulley 32 and the cabinet body 1. The following will describe in detail the connection between the second pulley 32 and the cabinet body 1.

[0033] Specifically, the protruding tooth 61 is formed by the mounting base 6 protruding towards the guide rail 33. The mounting base 6 has a threaded hole through it along the axial direction. The mounting base 6 is fixedly connected to the guide rail 33 through the threaded hole using bolts. During the process of locking the mounting base 6 to the guide rail 33 with bolts, the protruding tooth 61 helps to increase the friction between the contact surface of the mounting base 6 and the guide rail 33. This reduces the possibility of the mounting base 6 and the guide rail 33 becoming loose during the rotation of the second pulley 32. This would cause the second pulley 32 to cause the mounting base 6 to rotate along the guide rail 33. The second pulley 32 and the mounting base 6 would be in a relatively stationary state. As the drawer body 2 slides along the sliding area 4, the second pulley 32 stops rotating, which would cause the second pulley 32 to experience single-point wear.

[0034] Furthermore, a connecting shaft 62 is integrally formed on the end of the mounting base 6 away from the tooth 61, and a rotating bearing 621 is installed on the connecting shaft 62. The rotating bearing 621 is coaxially fixed with the second pulley 32, so that the second pulley 32 can rotate smoothly along the mounting base 6.

[0035] The width of the guide rail 33 and the thickness of the first pulley 31 are in a clearance fit, and the first pulley 31 is made of nylon material. In this embodiment, the second pulley 32 is also made of nylon material. Because the width of the guide rail 33 and the first pulley 31 are in a clearance fit, it helps to reduce the lateral sway of the drawer body 2 during the sliding process along the sliding area 4, thereby reducing the amount of shaking of the drawer body 2 during the sliding process along the sliding area 4 and improving the stability of the drawer body 2 during the sliding process along the sliding area 4.

[0036] The use of nylon material, which has the advantage of low friction coefficient and tensile strength, helps to reduce the resistance when the drawer body 2 slides along the sliding area 4, and slows down the wear rate of the first pulley 31 and the second pulley 32.

[0037] Reference Figure 3 , Figure 4 and Figure 5 The drawer body 2 is provided with an auxiliary guide plate 5 along its length. The guide rail 33 is provided with a limiting groove 331 along its length. The auxiliary guide plate 5 and the limiting groove 331 slide together. The width of the limiting groove 331 is greater than the width of the auxiliary guide plate 5. The auxiliary guide plate 5 is provided with an inclined guide part 7 at one end near the second pulley 32. The angle of inclination of the inclined guide part 7 is equal to the angle formed by the first pulley 31 and the second pulley 32 in the horizontal direction in the initial state.

[0038] It needs to be defined here that the initial state refers to the state when the drawer body 2 is closed along the cabinet body 1, and the extreme position refers to the extreme distance that the drawer body 2 can move along the cabinet body 1 when it slides along the sliding area 4 and opens along the cabinet body 1.

[0039] The inclined guide portion 7 is integrally formed with the auxiliary guide plate 5 to reduce the probability of the inclined guide portion 7 deforming along the auxiliary guide plate 5.

[0040] By limiting the sliding path of the auxiliary guide plate 5 along the guide rail 33 through the limiting groove 331, when the drawer body 2 tilts along the cabinet body 1, the maximum angle that the auxiliary guide plate 5 can tilt along the guide rail 33 is limited by the limiting groove 331, so as to avoid the drawer body 2 tilting at a large angle along the cabinet body 1.

[0041] The purpose is that, since the angle of inclination of the inclined guide 7 is equal to the angle formed by the first pulley 31 and the second pulley 32 in the initial state along the horizontal direction, when the drawer body 2 is located inside the cabinet body 1, the drawer body 2 is in a horizontal state along the cabinet body 1. Through the limiting effect of the inclined guide 7, the probability of the drawer body 2 opening along the cabinet body 1 when the cabinet body 1 is in an inclined state without being subjected to external force is effectively solved. At the same time, when the drawer body 2 slides along the cabinet body 1, through the guiding effect of the inclined guide 7, the drawer body 2 opens in an inclined state along the cabinet body 1 during the movement away from the cabinet body 1 along the sliding area 4, avoiding the problem of experimental items tipping over along the drawer body 2 due to the downward tilt of the drawer body 2 along the cabinet body 1.

[0042] Reference Figure 4 and Figure 5 A magnetic element 8 is provided at one end of the sliding area 4 near the first pulley 31, and the magnetic element 8 magnetically engages with the drawer body 2.

[0043] Specifically, the magnetic component 8 can be a magnet, which is installed on the end of the guide rail 33 away from the second pulley 32. At the same time, the magnetic component 8 can also be installed on the end of the drawer body 2 where the first pulley 31 is installed. The magnetic component 8 located on the guide rail 33 and the magnetic component 8 located on the end of the drawer body 2 near the first pulley 31 have opposite magnetic poles that attract each other.

[0044] Therefore, when the drawer body 2 is located inside the cabinet body 1, the drawer body 2 can be stably stopped in the sliding area 4 by the cooperation of the two magnetic components 8. Only when a magnetic force greater than that of the two magnetic components 8 is applied to the drawer body 2 can the drawer body 2 move away from the sliding area 4 along the sliding area 4, thus achieving high stability.

[0045] Furthermore, the guide rail 33 is provided with a first magnetic sheet 9 along its length, and the auxiliary guide plate 5 is provided with a second magnetic sheet 10 along its length. The first magnetic sheet 9 and the second magnetic sheet 10 have the same magnetic poles that repel each other. The first magnetic sheet 9 and the second magnetic sheet 10 can be soft rubber magnets.

[0046] The first magnetic sheet 9 is fixedly connected to the guide rail 33 by adhesive, and the second magnetic sheet 10 is also fixedly connected to the auxiliary guide plate 5 by adhesive.

[0047] Because the first magnetic piece 9 and the second magnetic piece 10 repel each other, when the experimenter opens or closes the drawer body 2 along the sliding area 4, the drawer body 2 is subjected to the mutual repulsive magnetic force, which generates a damping sensation and improves the stability and smoothness of the experimenter opening or closing the drawer body 2 along the cabinet body 1.

[0048] The implementation principle of the improved experimental bench cabinet drawer slide in this embodiment is as follows: the drawer body 2 slides smoothly along the bench cabinet body 1 via the sliding assembly 3. The first pulley 31 is rotatably connected to the drawer body 2, and the second pulley 32 is rotatably connected to the guide rail 33. When the drawer body 2 slides along the sliding area 4, the first pulley 31 rotates along the guide rail 33. Simultaneously, the second pulley 32 supports and guides the end of the drawer body 2 away from the first pulley 31. Because the height of the second pulley 32 along the sliding area 4 is higher than the height of the first pulley 31, when the drawer body 2 moves to its limit position along the bench cabinet body 1, the resistance of the second pulley 32... The first pulley 31 and the second pulley 32 act as a stop, restricting the drawer body 2 from sliding further along the sliding area 4 and reducing the probability of the drawer body 2 accidentally falling off the guide rail 33. At the same time, when it is necessary to remove the drawer body 2 along the sliding area 4, simply tilt the drawer body 2 upward along the sliding area 4 and continuously pull the drawer body 2 so that the first pulley 31 and the second pulley 32 are in a misaligned state, and the drawer body 2 can be removed along the cabinet body 1. The operation is simple and the stability is high. The cooperation of the first pulley 31 and the second pulley 32 increases the contact area with the guide rail 33, and slows down the rate of mechanical wear caused by sliding friction of the first pulley 31, the second pulley 32 and the guide rail 33.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An improved drawer slide for a laboratory bench cabinet, characterized in that: The system includes a cabinet body (1), a drawer body (2), and a sliding assembly (3). The cabinet body (1) has a sliding area (4). The drawer body (2) and the cabinet body (1) slide along the sliding area (4) via the sliding assembly (3). The sliding assembly (3) includes a first pulley (31), a second pulley (32), and a guide rail (33). The guide rail (33) is disposed within the sliding area (4) along the length of the sliding area (4). The first pulley (31) and the drawer body (2) are located within the sliding area (4). One end of the drawer body (2) is rotatably connected to the first pulley (31), and the second pulley (32) is rotatably supported on the guide rail (33) at the end away from the first pulley (31). The height of the second pulley (32) along the sliding area (4) is higher than the height of the first pulley (31). When the drawer body (2) moves along the sliding area (4), the first pulley (31) slides along the guide rail (33). When the first pulley (31) and the second pulley (32) abut against each other, the drawer body (2) moves to the limit position along the cabinet body (1).

2. The improved experimental bench cabinet drawer slide according to claim 1, characterized in that: The drawer body (2) is provided with an auxiliary guide plate (5) along its length direction, and the guide rail (33) is provided with a limiting groove (331) along its length direction. The auxiliary guide plate (5) and the limiting groove (331) slide and cooperate. The width of the limiting groove (331) is greater than the width of the auxiliary guide plate (5).

3. The improved experimental bench cabinet drawer slide according to claim 2, characterized in that: The guide rail (33) is provided with a mounting base (6), the second pulley (32) is rotatably connected to the mounting base (6), and the mounting base (6) is provided with a plurality of protruding teeth (61), which abut against the surface of the guide rail (33).

4. The improved experimental bench cabinet drawer slide according to claim 3, characterized in that: The auxiliary guide plate (5) is provided with an inclined guide part (7) at one end near the second pulley (32). The inclined guide part (7) is inclined at an angle equal to the angle formed by the first pulley (31) and the second pulley (32) in the horizontal direction in the initial state.

5. The improved experimental bench cabinet drawer slide according to claim 4, characterized in that: The width of the guide rail (33) and the thickness tolerance of the first pulley (31) are in a clearance fit.

6. The improved experimental bench cabinet drawer slide according to claim 2, characterized in that: A magnetic suction element (8) is provided at one end of the sliding area (4) near the first pulley (31), and the magnetic suction element (8) is magnetically attracted to the drawer body (2).

7. The improved experimental bench cabinet drawer slide according to claim 3, characterized in that: The guide rail (33) is provided with a first magnetic sheet (9) along its length, and the auxiliary guide plate (5) is provided with a second magnetic sheet (10) along its length. The first magnetic sheet (9) and the second magnetic sheet (10) have the same magnetic poles that repel each other.

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