Hidden telescopic traction mechanism

Abstract

The utility model discloses a hidden type telescopic traction mechanism which comprises a goods shelf. Two sliding rails are arranged at the bottom of the goods shelf; a sliding groove is formed in the sliding rail. A sliding shaft is jointly supported in the two sliding grooves in a sliding mode. The periphery of the sliding shaft is sleeved with a traction frame. A traction hole is formed in the end, away from the sliding shaft, of the traction frame. The two ends of the sliding shaft extend out of the sliding grooves to the outer sides of the sliding rails correspondingly. A positioning plate is arranged on the outer side of the sliding rail; one end of the positioning plate is rotationally connected to the sliding rail, and the other end is provided with a positioning hole for inserting the part of the sliding shaft extending out of the sliding chute; a fixing hole is further formed in the positioning plate; locking lugs used for being inserted into the fixing holes to lock the positions of the positioning plates are arranged on the outer sides of the sliding rails. A locking hole is formed in the locking lug; one end of the sliding rail is connected with a locking pin through a connecting piece. According to the hidden type telescopic traction mechanism, the space utilization rate can be increased, the placing density of goods shelves is high, and the site space can be utilized to the maximum extent.

Description

Technical Field

[0001] The utility model relates to a hidden telescopic traction mechanism. Background Art

[0002] Shelves are usually transported using a traction frame. Existing shelves usually have a traction pin fixed to the frame itself, which is an external traction structure that takes up space and is not conducive to placement in dense warehouses. Alternatively, a traction hole is set on the frame itself. When it needs to be transported, the shelf is moved by connecting an external traction device to the traction hole. Such a traction structure not only has insufficient traction stability, but also requires a spare traction device, which is inconvenient to store and increases the cost. Utility Model Content

[0003] The utility model provides a hidden telescopic traction mechanism to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0004] The cam is an angular channel formed on a pair of camshafts, each of which is adapted to move the camshafts forward and downward, and the camshafts are adapted to move the camshafts forward and downward, respectively.

[0005] Furthermore, a rotating seat is provided on the outer side of the slide rail; the positioning plate is rotatably connected to the rotating seat via a rotating shaft; and a channel is provided between the rotating shaft and the slide rail for the portion of the slide shaft extending out of the slide groove to pass through.

[0006] Furthermore, the positioning plate is formed with a connecting end for connecting to the rotating shaft and a limiting end for fitting the outer side of the slide rail; and the positioning hole is formed at the limiting end.

[0007] Furthermore, a locking hole is formed at the limiting end.

[0008] Furthermore, a groove for limiting the retracted position of the traction frame is formed at one end of the slide slot away from the positioning plate.

[0009] Furthermore, a guiding inclined surface for guiding the movement of the slide rail is formed between the groove bottom of the groove and the groove bottom of the slide groove.

[0010] Furthermore, the depth of the groove is greater than or equal to the diameter of the sliding shaft.

[0011] Furthermore, a plurality of limiting protrusions are formed at the bottom of the slide rail for cooperating with the connecting rod of the shelf to limit the installation position of the slide rail.

[0012] Furthermore, two limit plates are provided at one end of the traction frame away from the traction hole for limiting the sliding of the traction frame; the traction frame is rotatably sleeved on the outer periphery of the sliding shaft through the two limit plates, and is rotatably connected to the sliding shaft; the two limit plates are respectively arranged to fit the inner side walls of the two slide rails.

[0013] Furthermore, the distance from the upper side of the limiting plate to the upper side of the slide rail ranges from 3 cm to 5 cm; the distance from the lower side of the limiting plate to the lower side of the slide rail ranges from 3 cm to 5 cm.

[0014] The utility model is beneficial in that the provided hidden telescopic traction mechanism, by setting a retractable traction frame at the bottom of the shelf, can not only meet the demand of moving the shelf at any time, but also will not increase the overall projection size of the shelf, thereby improving space utilization, making the shelves densely placed and maximizing the use of site space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of a traction frame of a hidden telescopic traction mechanism involved in the present application extending out of a shelf;

[0017] Figure 2 It is a schematic diagram of a traction frame of a hidden telescopic traction mechanism involved in the present application being retracted into a shelf;

[0018] Figure 3 yes Figure 1 A schematic diagram of the installation structure of a traction frame and a slide rail of a hidden telescopic traction mechanism;

[0019] Figure 4 yes Figure 3 A schematic diagram of an enlarged partial structure of a traction frame and a mounting structure of a slide rail of a hidden telescopic traction mechanism;

[0020] Hidden telescopic traction mechanism 10, shelf 11, connecting rod 111, slide rail 12, slide groove 121, groove 122, guide slope 123, limiting protrusion 124, locking ear 125, locking hole 1251, slide shaft 13, traction frame 14, traction hole 141, limiting plate 142, positioning plate 15, positioning hole 151, fixing hole 152, connecting end 153, limiting end 154, connecting piece 16, locking pin 17, rotating seat 18, rotating shaft 19, channel 20. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] like Figures 1 to 4As shown, a hidden telescopic traction mechanism 10 of the present application comprises: a shelf 11, two slide rails 12 are provided at the bottom of the shelf 11, the slide rails 12 are formed with a slide groove 121, and a slide shaft 13 is slidably supported in the two slide grooves 121, that is, the two ends of the slide shaft 13 are respectively slidably arranged in the two slide grooves 121, and a traction frame 14 is sleeved on the outer periphery of the slide shaft 13 for traction of the shelf 11, and a traction hole 141 is formed at one end of the traction frame 14 away from the slide shaft 13 for connecting a traction device. In this way, by pulling the traction frame 14, the slide shaft 13 can slide in the slide groove 121, so that the traction frame 14 can move between an extended position of the shelf 11 and a retracted position of the shelf 11, and the traction frame 14 is pulled out when the shelf 11 needs to be towed, and is pushed in when the shelf 11 does not need to be towed.

[0025] Furthermore, both ends of the slide shaft 13 extend out of the slide groove 121 and extend to the outside of the slide rail 12. A positioning plate 15 is provided on the outside of the slide rail 12, one end of the positioning plate 15 is rotatably connected to the slide rail 12, and the other end is formed with a positioning hole 151 for the portion of the slide shaft 13 extending out of the slide groove 121 to be inserted, so that the positioning plate 15 is buckled on the outer periphery of the portion of the slide shaft 13 extending out of the slide groove 121 through the positioning hole 151, and the extended position of the traction frame 14 can be positioned. That is to say, after the traction frame 14 is pulled out, the position of the traction frame 14 can be fixed by buckling the positioning plate 15 on the outer periphery of the extended end of the slide shaft 13, thereby ensuring the stability of the traction frame 14 pulling the shelf 11.

[0026] Furthermore, the positioning plate 15 is also formed with a fixing hole 152, and a locking ear 125 is provided on the outer side of the slide rail 12. The locking ear 125 is inserted into the fixing hole 152 to lock the position of the positioning plate 15. The locking ear 125 is formed with a locking hole 1251, and a locking pin 17 is connected to one end of the slide rail 12 through a connector 16. The locking pin 17 is inserted into the locking hole 1251 to lock the position of the positioning plate 15. In this way, after the position of the traction frame 14 is fixed by the positioning plate 15, the fixed position of the positioning plate 15 is locked, thereby further ensuring the limitation of the traction position of the traction frame 14, and the traction structure is more stable.

[0027] Therefore, the above-mentioned hidden telescopic traction mechanism 10 can not only meet the demand of moving the shelf 11 at any time by setting a retractable traction frame 14 at the bottom of the shelf 11, but also will not increase the overall projection size of the shelf 11, thereby improving space utilization. The shelves 11 are placed at a high density and can maximize the use of site space.

[0028] As a specific embodiment, a rotating seat 18 is provided on the outer side of the slide rail 12, and the positioning plate 15 is rotatably connected to the rotating seat 18 through a rotating shaft 19. A channel 20 is provided between the rotating shaft 19 and the slide rail 12 for the portion of the slide shaft 13 extending out of the slide slot 121 to pass through, thereby ensuring the feasibility of the pulling structure of the traction frame 14. The positioning plate 15 is formed with a connecting end 153 and a limiting end 154, the connecting end 153 is used to connect to the rotating shaft 19, the limiting end 154 is used to fit the outer side of the slide rail 12, the positioning hole 151 is formed at the limiting end 154, and the locking hole 1251 is formed at the limiting end 154. In this way, the combination of the connecting end 153 and the limiting end 154 not only adapts the connection structure of the rotating seat 18, but also enables the positioning plate 15 to fit the slide rail 12 to position the slide shaft 13, and the positioning structure is stable and reliable, and enables the positioning plate 15 to fit the slide rail 12 to lock itself, and the locking structure is also stable and reliable.

[0029] As a specific embodiment, the slide 121 is formed with a groove 122 at one end thereof away from the positioning plate 15, and the retracted position of the traction frame 14 can be limited by the groove 122, so that the traction frame 14 can be prevented from sliding out of the shelf 11 when the traction frame 14 is not used, and the retracted structure has high stability. A guiding slope 123 is formed between the groove bottom of the groove 122 and the groove bottom of the slide 121, and the guiding slope 123 is used to guide the slide rail 12 to move between the groove 122 and the slide 121, so that the operation of pushing and pulling the traction frame 14 is smoother.

[0030] In the above solution, the depth of the groove 122 is greater than or equal to the diameter of the sliding shaft 13 , so that the stability of the contraction position of the traction frame 14 can be guaranteed.

[0031] As a specific implementation, a plurality of limiting protrusions 124 are formed at the bottom of the slide rail 12. The limiting protrusions 124 cooperate with the connecting rods 111 of the shelf 11 to limit the installation position of the slide rail 12, and the structural stability is higher.

[0032] As a specific implementation, two limit plates 142 are provided at one end of the traction frame 14 away from the traction hole 141. The traction frame 14 is rotatably sleeved on the outer periphery of the slide shaft 13 through the two limit plates 142, and is rotatably connected to the slide shaft 13. The two limit plates 142 are respectively arranged to fit the inner side walls of the two slide rails 12. In this way, the sliding of the traction frame 14 can be limited by the two limit plates 142 to ensure that the traction frame 14 is more stable in pushing and pulling and will not slide, thereby ensuring the stability of the traction operation, and the shelf 11 will not shake left and right during the traction process.

[0033] As a specific implementation, the distance between the upper side of the limiting plate 142 and the upper side of the slide rail 12 is in the range of 3 cm to 5 cm, and the distance between the lower side of the limiting plate 142 and the lower side of the slide rail 12 is in the range of 3 cm to 5 cm. This arrangement allows the traction frame 14 to have a rotation space in the up and down directions, can adapt to traction equipment of different heights, has high versatility, and will not cause the shelf 11 to shake during the traction process.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A hidden telescopic traction mechanism, comprising: Shelf; characterized in that, Two slide rails are provided at the bottom of the shelf; The slide rail is formed with a slide groove; A sliding shaft is slidably supported in the two sliding grooves; The outer periphery of the sliding shaft is sleeved with a traction frame for traction of the shelf; A traction hole for connecting a traction device is formed at one end of the traction frame away from the sliding shaft; Two ends of the sliding shaft extend out of the sliding groove to the outside of the sliding rail respectively; A positioning plate for positioning the extension position of the traction frame is provided on the outer side of the slide rail; One end of the positioning plate is rotatably connected to the slide rail and the other end is formed with a positioning hole for inserting the portion of the slide shaft extending out of the slide slot; The positioning plate is also formed with a fixing hole; The outer side of the slide rail is provided with a locking ear for inserting into the fixing hole to lock the position of the positioning plate; The locking ear is formed with a locking hole; One end of the slide rail is connected to a locking pin through a connecting piece and is used to be inserted into the locking hole to lock the position of the positioning plate.

2. A hidden telescopic traction mechanism according to claim 1, characterized in that: A rotating seat is provided on the outer side of the slide rail; The positioning plate is rotatably connected to the rotating seat via a rotating shaft; A passage is provided between the rotating shaft and the slide rail for allowing the portion of the slide shaft extending out of the slide groove to pass through.

3. A hidden telescopic traction mechanism according to claim 2, characterized in that: The positioning plate is formed with a connecting end for connecting to the rotating shaft and a limiting end for fitting to the outer side of the slide rail; The positioning hole is formed at the limiting end.

4. A hidden telescopic traction mechanism according to claim 3, characterized in that: The locking hole is formed at the limiting end.

5. The hidden telescopic traction mechanism according to claim 1, characterized in that: The slide slot is formed with a groove at one end thereof away from the positioning plate for limiting the retracted position of the traction frame.

6. A hidden telescopic traction mechanism according to claim 5, characterized in that: A guiding inclined surface for guiding the movement of the slide rail is formed between the groove bottom of the groove and the groove bottom of the slide groove.

7. A hidden telescopic traction mechanism according to claim 6, characterized in that: The depth of the groove is greater than or equal to the diameter of the sliding shaft.

8. The hidden telescopic traction mechanism according to claim 1, characterized in that: A plurality of limiting protrusions are formed at the bottom of the slide rail and are used to cooperate with the connecting rod of the shelf to limit the installation position of the slide rail.

9. The hidden telescopic traction mechanism according to claim 1, characterized in that: Two limiting plates for limiting the sliding of the traction frame are provided at one end of the traction frame away from the traction hole; The traction frame is rotatably sleeved on the outer circumference of the sliding shaft through the two limiting plates, and is rotatably connected to the sliding shaft; The two limit plates are respectively arranged in contact with the inner side walls of the two slide rails.

10. A hidden telescopic traction mechanism according to claim 9, characterized in that: The distance between the upper side of the limiting plate and the upper side of the slide rail is in the range of 3 cm to 5 cm; The distance from the lower side of the limiting plate to the lower side of the slide rail ranges from 3 cm to 5 cm.

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