A shelf support fixture

Abstract

The utility model discloses a kind of shelf support fixing devices, including support bar, support bar is slidably arranged with base along support bar length direction on it, support groove with upper end opening is equipped on base, multiple positioning blocks are equipped along length direction in the opposite sides of support bar, form positioning slot between adjacent two positioning blocks, limit card block is symmetrically equipped on the both sides of base, limit block that can be inserted into the limit of positioning slot is equipped on limit card block. By adopting the distributed structure of support bar double-side positioning block and positioning slot, cooperate with the limit card block and limit block that are symmetrically arranged on the both sides of base, realize double-side synchronous locking, greatly improve stability and anti-vibration carrying capacity. In the locking state of pressing plate, its two side walls are in contact with two limit card blocks, so that limit card block does not rebound, so it is more reliable, prevent limit block from separating from positioning slot;Buckle end is pressed into support groove, so as to press the shelf in support groove and lock the shelf. Single pressing pressing plate can trigger shelf unlocking and limit release simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of storage equipment shelf support structure, and in particular to a shelf support fixing device. Background Technology

[0002] Currently, the support shelves inside freezers, filing cabinets, safes, and on goods shelves generally adopt a longitudinal support bar + elastic buckle locking structure. Its core structure includes a longitudinal support bar and a sliding base. The base locks in position by abutting against a protrusion on the front of the support bar at its positioning end. Examples include patents CN222598182U, CN211953377U, CN223106516U, and CN222837211U.

[0003] The aforementioned existing technologies have the following drawbacks in practical applications: 1. The small contact area between the positioning end and the convex hull makes it easy for micro-displacement to accumulate under transportation vibration, leading to disengagement.

[0004] 2. The single-point bearing capacity of the convex hull structure is relatively low. When the load on the shelf is too high, it is easy to loosen or shift.

[0005] To address the aforementioned issues, utility model patent CN217309582U discloses a shelf clip installation device. While it solves the problems of unstable and unreliable locking and easy loosening of existing shelf support devices, its structure is complex and impractical. Utility Model Content

[0006] The purpose of this utility model is to provide a shelf support and fixing device to address the shortcomings of the prior art.

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows: A shelf support and fixing device includes a support bar, a base slidably provided on the support bar along its length, the base having an upper opening for inserting one end of the shelf into a support groove for supporting the shelf, a plurality of positioning blocks provided on opposite sides of the support bar along its length, a positioning groove being formed between two adjacent positioning blocks, and limiting blocks symmetrically provided on both sides of the base, each limiting block having a limiting block that can be inserted into the positioning groove for limiting.

[0008] A further technical solution is that the base has limiting installation grooves on both the left and right sides of the middle part, the limiting block is hinged in the limiting installation groove, the end of the limiting block near the support bar is the limiting end, the limiting block is set on the limiting end, and the end of the limiting block away from the support bar is the pressing end.

[0009] A further technical solution is that the width of the limiting block is greater than the positioning groove, and the limiting end is provided with a clearance groove that is adapted to the positioning block.

[0010] A further technical solution is that a limiting block spring is provided between the two limiting blocks, and the base is provided with a clearance hole for the limiting block spring to pass through. The two ends of the limiting block spring abut against the inner sidewalls of the two pressing ends respectively.

[0011] A further technical solution is that the pressing end is provided with a first spring positioning post, and the two ends of the limiting block spring are sleeved outside the first spring positioning post.

[0012] A further technical solution is that the base has a safety mounting groove at the end away from the support bar, and a safety buckle is provided in the safety mounting groove. One end of the safety buckle is hinged to the end of the safety mounting groove away from the support groove, and the other end of the safety buckle has a buckle end extending into the support groove. The bottom of the safety mounting groove has a mounting hole, and a buckle spring is provided in the mounting hole. One end of the buckle spring abuts against the bottom of the mounting hole, and the other end abuts against the safety buckle. A pressure plate is provided outside the safety buckle. One end of the pressure plate is hinged to the base, and the other end has a buckle. When the pressure plate rotates to the locked state, the buckle engages with the locking block on the base, and the pressure plate presses the safety buckle into the safety mounting groove. The buckle end extends into the support groove, and the two side walls of the pressure plate respectively contact and limit the movement of the two limiting blocks. When the pressure plate rotates to the unlocked state, the safety buckle springs up under the action of the buckle spring, the buckle end exits the support groove, and the pressure plate releases the limiting blocks.

[0013] A further technical solution is that the base is provided with a limiting protrusion.

[0014] A further technical solution is that the support bar is provided with a first sliding groove along its length, and the base is provided with a slider that matches the first sliding groove, and the slider slides in conjunction with the first sliding groove.

[0015] A further technical solution is that the first groove is a dovetail groove.

[0016] A further technical solution is that the base has a second sliding groove on both sides, and the second sliding groove slides in cooperation with the side wall of the positioning block to form an axial guide pair.

[0017] The beneficial effects of adopting the above technical solution are as follows: By adopting a distributed structure of positioning blocks and positioning grooves on both sides of the support bar, and with the limiting blocks and limiting blocks symmetrically arranged on both sides of the base, synchronous locking on both sides is achieved, which greatly improves stability and vibration resistance.

[0018] When the pressure plate is locked, its two side walls contact and limit the two locking blocks, preventing the locking blocks from rebounding and thus making it more secure and preventing the locking blocks from detaching from the positioning groove; the buckle end presses into the support groove to hold the shelf in the support groove, thereby locking the shelf. A single press of the pressure plate can simultaneously trigger the shelf unlocking and limit release. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of this utility model; Figure 4 yes Figure 3 Enlarged view of section A in the middle; Figure 5 This is a structural diagram of the base; Figure 6 This is a structural diagram of the safety buckle; Figure 7 This is a schematic diagram of the limit block structure; Figure 8 This is a schematic diagram of the pressure plate structure.

[0020] In the diagram: 1. Support bar; 101. Positioning block; 102. Positioning groove; 103. First slide groove; 2. Limiting block spring; 3. Base; 301. Support groove; 302. Limiting mounting groove; 303. Clearance hole; 304. Safety mounting groove; 305. Mounting hole; 306. Locking block; 307. Limiting protrusion; 308. Slider; 309. Second slide groove; 4. Limiting block; 401. Limiting block; 402. Pressing end; 403. First spring positioning post; 404. Limiting end; 405. Clearance groove; 5. Limiting retaining shaft; 6. Snap spring; 7. Safety snap; 701. Snap end; 8. Safety retaining shaft; 9. Pressure plate; 901. Snap. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figure 1-8 As shown, a shelf support and fixing device is disclosed, including a support strip 1 for installation in a refrigerator, filing cabinet, safe, and on a goods shelf. A base 3 is slidably mounted on the support strip 1 along its length. The base 3 has an opening at its upper end for inserting one end of the shelf into a support groove 301 for supporting the shelf. Multiple positioning blocks 101 are spaced apart along the length of the support strip 1 on opposite sides, forming a positioning groove 102 between adjacent positioning blocks 101. Limiting blocks 4 are symmetrically arranged on both sides of the base 3, each limiting block 4 having a limiting block 401 that can be inserted into the positioning groove 102 for locking. When the base 3 slides along the support strip 1, the limiting block 401 can be inserted into any positioning groove 102 to achieve locking.

[0024] Preferred, refer to Figure 3-7 The base 3 has limiting mounting grooves 302 on both the left and right sides of its center. The limiting block 4 is hinged in the limiting mounting groove 302 via a limiting pin 5. The end of the limiting block 4 closest to the support bar 1 is the limiting end 404, and the limiting block 401 is disposed on the limiting end 404. The end of the limiting block 4 furthest from the support bar 1 is the pressing end 402 with anti-slip texture. When the pressing end 402 is pressed, the limiting end 404 is lifted with the limiting pin 5 as the fulcrum, thus unlocking the device.

[0025] The width of the limiting block 4 is greater than that of the positioning groove 102, and the limiting end 404 is provided with a relief groove 405 that matches the contour of the positioning block 101. The relief groove 405 covers the side wall of the positioning block 101 when the limiting block 401 is inserted into the positioning groove 102, forming a double constraint.

[0026] A limiting block spring 2 is installed between the pressing ends 402 of the two limiting blocks 4. A through clearance hole 303 is provided in the base 3 for the limiting block spring 2 to pass through. Both ends of the limiting block spring 2 abut against the inner sidewall of the pressing end 402. A first spring positioning post 403 is stamped into the pressing end 402, and both ends of the limiting block spring 2 are sleeved on the outside of the first spring positioning post 403. The preload of the limiting block spring 2 pushes the two pressing ends 402 outwards, keeping the limiting block 401 in the inserted state.

[0027] The base 3 has a safety mounting groove 304 at the end furthest from the support bar 1. A safety buckle 7 is provided within the safety mounting groove 304. One end of the safety buckle 7 is hinged to the end of the safety mounting groove 304 furthest from the support groove 301 via a safety pin 8. The other end of the safety buckle 7 has a buckle end 701 extending into the support groove 301. A mounting hole 305 is provided at the bottom of the safety mounting groove 304. A buckle spring 6 is provided within the mounting hole 305. One end of the buckle spring 6 abuts against the bottom of the mounting hole 305, and the other end abuts against the safety buckle 7. (Refer to...) Figure 2 , 5 Both the mounting hole 305 and the safety buckle 7 have second spring positioning posts formed at the bottom of the hole and at both ends of the buckle spring 6.

[0028] The safety buckle 7 is externally provided with a pressure plate 9. One end of the pressure plate 9 near the support groove 301 is hinged to the base 3, and the other end is provided with a buckle 901. When the pressure plate 9 is rotated to the locked state, the buckle 901 engages with the locking block 306 on the base 3, and the pressure plate 9 presses the safety buckle 7 into the safety mounting groove 304. The buckle end 701 extends into the support groove 301, pressing down on the shelf portion within the support groove 301 to lock the shelf. The two side walls of the pressure plate 9 respectively contact and limit the movement of the two limiting blocks 4. When the pressure plate 9 is rotated to the unlocked state, the safety buckle 7 springs up under the action of the buckle spring 6, and the buckle end 701 exits the support groove 301, thereby unlocking the shelf. The pressure plate 9 also releases the limiting blocks 4 from their positions.

[0029] When the pressure plate 9 is locked, its two side walls contact and limit the two limiting blocks, preventing the limiting blocks from rebounding and thus making it more secure, preventing the limiting block 401 from disengaging from the positioning groove 102. The latch end 701 presses into the support groove 301 to press the shelf inside the support groove 301, thereby locking the shelf. A single press of the pressure plate 9 can simultaneously trigger the shelf unlocking and limit release.

[0030] Reference Figure 5 The base 3 is provided with a limiting protrusion 307 for limiting the pressure plate 9.

[0031] Reference Figure 4 5. The support bar 1 has a dovetail-shaped first sliding groove 103 along its length. The base 3 has a slider 308 that matches the first sliding groove 103, and the slider 308 slides in cooperation with the first sliding groove 103. The base 3 also has second sliding grooves 309 on both sides, and the second sliding grooves 309 slide in cooperation with the side wall of the positioning block 101 to form an axial guide pair.

[0032] When using the shelf support and fixing device of this utility model, the support bar 1 is fixed to the left and right side walls of the refrigerator, filing cabinet, or safe with bolts (two sets are installed on each side). Rotate the pressure plate 9 to release the engagement between the buckle 901 and the locking block 306. The safety buckle 7 springs up under the action of the buckle spring 6, and the buckle end 701 exits the support groove 301. The pressure plate 9 releases the constraint on the limiting locking block 4. Press the pressing end 402 of the limiting locking block 4, and the limiting block 401 exits the positioning groove 102 through the lever action, and the sliding base 3 is moved to the target height. Release the pressing end 402, and the limiting locking block spring 2 pushes the limiting block 401 to insert into the new positioning groove 102. Place the shelf end into the support groove 301, press down the pressure plate 9 to the locked state, the buckle 901 engages with the locking block 306, and the pressure plate presses down the safety buckle 7, so that the buckle end 701 is pressed into the support groove 301, which can prevent the shelf in the support groove 301 from falling out. The pressure plate 9 has two side walls that are pressed against the limiting blocks 4 to prevent it from popping up (anti-fall-off design). When disassembling the shelf, rotate the pressure plate 9 to unlock it. The safety buckle 7 pops up under the action of the buckle spring 6, causing the buckle end 701 to exit the support groove 301, thereby unlocking the shelf and allowing it to be taken out directly.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A shelf support and fixing device, comprising a support bar (1), wherein a base (3) is slidably provided on the support bar (1) along the length direction of the support bar (1), and the base (3) is provided with an upper opening for inserting one end of the shelf into a support groove (301) for supporting the shelf, characterized in that: The support bar (1) has multiple positioning blocks (101) on both sides along the length direction, and a positioning groove (102) is formed between two adjacent positioning blocks (101). The base (3) has symmetrically arranged limiting blocks (4) on both sides, and the limiting blocks (4) are provided with limiting blocks (401) that can be inserted into the positioning groove (102) for limiting.

2. The shelf support and fixing device according to claim 1, characterized in that: The base (3) has a limiting installation groove (302) on both the left and right sides of the middle. The limiting block (4) is hinged in the limiting installation groove (302). The end of the limiting block (4) near the support bar (1) is the limiting end (404). The limiting block (401) is set on the limiting end (404). The end of the limiting block (4) away from the support bar (1) is the pressing end (402).

3. The shelf support and fixing device according to claim 2, characterized in that: The width of the limiting block (4) is greater than that of the positioning groove (102), and the limiting end (404) is provided with a clearance groove (405) that is adapted to the positioning block (101).

4. The shelf support and fixing device according to claim 2, characterized in that: A limiting block spring (2) is provided between the two limiting blocks (4). The base (3) has a clearance hole (303) for the limiting block spring (2) to pass through. The two ends of the limiting block spring (2) abut against the inner sidewalls of the two pressing ends (402).

5. The shelf support and fixing device according to claim 4, characterized in that: The pressing end (402) is provided with a first spring positioning post (403), and the two ends of the limiting block spring (2) are sleeved outside the first spring positioning post (403).

6. The shelf support and fixing device according to claim 2, characterized in that: The base (3) has a safety mounting groove (304) at one end away from the support bar (1). A safety buckle (7) is provided in the safety mounting groove (304). One end of the safety buckle (7) is hinged to the end of the safety mounting groove (304) away from the support groove (301). The other end of the safety buckle (7) has a buckle end (701) extending into the support groove (301). The bottom of the safety mounting groove (304) has a mounting hole (305). A buckle spring (6) is provided in the mounting hole (305). One end of the buckle spring (6) abuts against the bottom of the mounting hole (305), and the other end abuts against the safety buckle (7). A pressure plate is provided outside the safety buckle (7). (9) One end of the pressure plate (9) is hinged to the base (3), and the other end is provided with a buckle (901). When the pressure plate (9) is rotated to the locked state, the buckle (901) engages with the buckle block (306) on the base (3), and the pressure plate (9) presses the safety buckle (7) into the safety mounting groove (304). The buckle end (701) extends into the support groove (301), and the two side walls of the pressure plate (9) respectively contact and limit the two limiting blocks (4). When the pressure plate (9) is rotated to the unlocked state, the safety buckle (7) springs up under the action of the buckle spring (6), the buckle end (701) exits the support groove (301), and the pressure plate (9) releases the limitation on the limiting blocks (4).

7. A shelf support and fixing device according to claim 6, characterized in that: The base (3) is provided with a limiting protrusion (307).

8. A shelf support and fixing device according to claim 6, characterized in that: The support bar (1) is provided with a first groove (103) along its length direction, and the base (3) is provided with a slider (308) that is adapted to the first groove (103). The slider (308) slides in cooperation with the first groove (103).

9. A shelf support and fixing device according to claim 8, characterized in that: The first groove (103) is a dovetail groove.

10. A shelf support and fixing device according to claim 8, characterized in that: The base (3) has a second sliding groove (309) on both sides. The second sliding groove (309) slides with the side wall of the positioning block (101) to form an axial guide pair.

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