Safety locking device for conveying frame

Abstract

The utility model relates to the technical field of maintenance safety locks, in particular to a safety locking device for a conveying frame, which comprises the conveying frame, the conveying frame comprises a base and a conveying table, the base is provided with a left lifting connecting rod and a right lifting connecting rod which are used for lifting the conveying table, and the conveying table is arranged at the tops of the two lifting connecting rods. A supporting protection frame is arranged on the periphery of the top of the base. The lifting height and angle of the conveying table are adjusted by controlling the left lifting connecting rod and the right lifting connecting rod; when a conveying frame needs to be safely overhauled, a worker erects and fixes an overhauling lever assembly on a fence of the conveying frame, and a lever body on the overhauling lever assembly abuts against the bottom of a left lifting connecting rod and the bottom of a right lifting connecting rod to fix the angle of the left lifting connecting rod, so that safe locking protection during overhauling is achieved; and meanwhile, through the arrangement of the clamping plate and the adjusting part, multi-point adjustment of the installation position of the maintenance lever can be achieved, and the use requirements of different maintenance heights are met.

Description

Technical Field

[0001] This utility model relates to the field of maintenance safety lock technology, and in particular to a safety locking device for a conveyor frame. Background Technology

[0002] In modern industrial production, oil drilling and workover operations, and logistics, conveyor racks are widely used as important material handling equipment in various aspects of factory operations, including cargo transfer, product transport on assembly lines, warehouse management, and pipe string transport during oil drilling and workover. To accommodate different heights and positions, many conveyor racks are equipped with lifting mechanisms, allowing the conveyor platform to be adjusted as needed. However, with the increasing functionality and flexibility of conveyor racks, their safety performance has received more attention, especially safety measures during maintenance and repair work.

[0003] Traditional conveyor racks often require maintenance bars for safety locking during maintenance; existing maintenance bars cannot be adjusted at multiple points to meet the requirements of different maintenance heights. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a safety locking device for a conveyor frame to solve the problem that the installation position of the inspection bar cannot be adjusted at multiple points when in use.

[0005] To achieve the above objectives, this utility model provides a safety locking device for a conveyor frame, comprising a conveyor frame, a base, and a conveyor platform. The base is provided with a left lifting linkage and a right lifting linkage for raising and lowering the conveyor platform. The conveyor platform is positioned on top of the two sets of lifting linkages. A support frame is provided around the top of the base. The device also includes:

[0006] Two sets of inspection bar assemblies, including bar bodies, are respectively abutted against the bottom of the left lifting link and the right lifting link. Bases are symmetrically arranged at both ends of the bar bodies. The bases overlap the front and rear sides of the support frame. A clamping plate is provided at the bottom of the base. An adjustment part is provided on the base to drive the clamping plate to clamp the support frame.

[0007] In some alternative embodiments, the adjusting part includes a guide slide plate extending downward through the top of the base and slidably connected to the base. The bottom of the guide slide plate is connected to a clamping plate. An extension plate is provided on the top of the guide slide plate, and a screw is screwed onto the extension plate. The bottom of the screw is rotatably connected to the top of the base, and a drive assembly is provided on the top of the screw.

[0008] In some alternative embodiments, the driving component is a driving block, the outer periphery of which is provided with anti-slip rubber pads, and the top of the driving block is provided with screw grooves.

[0009] In some optional embodiments, the left lifting linkage includes two sets of left linkages, the two sets of left linkages are symmetrically arranged and their bottoms are hinged to the top of the base, and their tops are hinged to the bottom of the conveyor table; a first intermediate rod is connected between the two sets of left linkages; a first lifting cylinder is provided between the first intermediate rod and the base; the top of the first lifting cylinder is hinged to the first intermediate rod, and the bottom of the first intermediate rod is hinged to the base plate.

[0010] In some optional embodiments, the right-side lifting linkage includes two sets of lower right linkages, which are symmetrically arranged and whose bottoms are respectively hinged to the top of the base. The tops of the two sets of upper right linkages are respectively hinged to the top of the upper right linkage. The tops of the two sets of upper right linkages are respectively hinged to the bottom of the conveyor platform. A second intermediate rod connects the two sets of lower right linkages, and a third intermediate rod connects the two sets of upper right linkages. A second lifting cylinder is disposed between the second and third intermediate rods. The top of the second lifting cylinder is hinged to the third intermediate rod, and the bottom of the second lifting cylinder is hinged to the second intermediate rod.

[0011] In some alternative embodiments, a maintenance ratchet assembly is also provided on the right-side lifting link.

[0012] In some alternative embodiments, the inspection ratchet assembly includes a limiting tooth, the limiting tooth is fixedly connected to the lower right connecting rod, and a ratchet bar is rotatably connected to the upper right connecting rod, with a ratchet tooth at the bottom of the ratchet bar that can mesh with the limiting tooth.

[0013] In some alternative embodiments, the upper right connecting rod is provided with a magnet for magnetically securing the ratchet rod.

[0014] As can be seen from the above description, the safety locking device for a conveyor frame provided by this utility model allows workers to adjust the lifting height and angle of the conveyor platform by controlling the left and right lifting linkages. When safety maintenance is required on the conveyor frame, workers set up and fix the maintenance bar assembly on the support frame of the conveyor frame, and the bar body on the maintenance bar assembly abuts against the bottom of the left and right lifting linkages to fix the angle of the left lifting linkage, thereby achieving safety locking protection during maintenance. At the same time, through the clamping plate and adjustment part, the installation position of the maintenance bar can be adjusted at multiple points to meet the usage requirements of different maintenance heights. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in one or more embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first-view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the inspection bar structure of this utility model;

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0019] Figure 4 This is a schematic diagram of the right-side lifting linkage structure described in this utility model;

[0020] Figure 5 This utility model Figure 4 A magnified structural diagram of B in the diagram.

[0021] The diagram is marked as follows:

[0022] 1. Base; 2. Support frame; 3. Left connecting rod; 301. First intermediate rod; 4. First lifting cylinder; 5. Lower right connecting rod; 501. Second intermediate rod; 6. Upper right connecting rod; 601. Third intermediate rod; 7. Second lifting cylinder; 8. Inspection bar assembly; 801. Base; 802. Side support; 803. Bar body; 804. Guide slide plate; 805. Clamping plate; 806. Screw; 9. Inspection ratchet assembly; 901. Limiting tooth; 902. Racket rod; 903. Magnet; 10. Conveyor table. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Please see Figures 1 to 5 As an embodiment of this utility model, a safety locking device for a conveyor frame includes a conveyor frame, which includes a base 1 and a conveyor platform 10. The base 1 is provided with a left lifting linkage and a right two-section lifting linkage for lifting the top plate 10. The conveyor platform 10 is located on top of the two sets of lifting linkages. A support frame 2 is provided around the top of the base plate 1. The device also includes:

[0026] The inspection bar assembly 8 includes a bar body 803, which is mounted on the bottom of the left lifting link. Side supports 802 are symmetrically arranged at both ends of the bar body 803. A base 801 is fixedly connected to the bottom of the side supports 802. The base 801 is mounted on the front and rear sides of the support frame 2. A clamping plate 805 is provided at the bottom of the base 801. An adjustment part is provided on the base 801 to drive the clamping plate 805 to clamp the support frame 2.

[0027] In this embodiment, the worker adjusts the lifting height and angle of the conveyor table 10 by controlling the left and right lifting linkages; when the conveyor frame needs to be safely inspected, the worker sets up and fixes the inspection bar assembly 8 on the support frame 2 of the conveyor frame, and the bar body 803 on the inspection bar assembly 8 abuts against the bottom of the left and right lifting linkages to fix the angle of the left lifting linkage and achieve safe locking protection during inspection.

[0028] Specifically, the worker attaches the bases 801 at both ends of the inspection bar to the two sides of the support frame 2, and then slides the inspection bar so that it abuts against the bottom of the left and right lifting links. After that, the worker drives the clamping plate 805 to move through the drive unit, clamping the edge of the support frame 2 between the bases 801 and the clamping plate 805, thereby fixing the inspection bar. The inspection bar can support the left lifting link and fix the angle of the left and right lifting links, thereby achieving safe locking protection during maintenance.

[0029] Please see Figures 1 to 5 Optionally, the adjustment unit includes a guide slide plate 804, which extends downward through the top of the base 801 and is slidably connected to the base 801. The bottom of the guide slide plate 804 is connected to the clamping plate 805. An extension plate is provided on the top of the guide slide plate 804, and a screw 806 is screwed onto the extension plate. The bottom of the screw 806 is rotatably connected to the top of the base 801, and a drive assembly is provided on the top of the screw 806.

[0030] The drive component is a drive block. The outer periphery of the drive block is provided with anti-slip rubber pads for workers to manually rotate the drive block. The top of the drive block is provided with a screw groove for workers to rotate the drive block with a wrench.

[0031] Specifically, when the worker rotates the drive block, the screw 806 can be rotated. Since the base 801 restricts the angle of the guide slide plate 804 and its extension plate, the rotation of the screw 806 will cause the guide slide plate 804 to move vertically, which in turn will cause the clamping plate 805 to move vertically. When the inspection bar abuts against the bottom of the left lifting link, the worker rotates the screw 806 clockwise to move the clamping plate 805 upward, clamping the edge of the support frame 2 between the base 801 and the clamping plate 805, thereby fixing the inspection bar.

[0032] Please see Figures 1 to 5 Optionally, the left lifting linkage includes two sets of left linkages 3, which are symmetrically arranged and whose bottoms are hinged to the top of the base 1 and whose tops are hinged to the bottom of the conveyor table 10; a first intermediate rod 301 is connected between the two sets of left linkages 3; a first lifting cylinder 4 is provided between the first intermediate rod 301 and the base 1; the top of the first lifting cylinder 4 is hinged to the first intermediate rod 301 and the bottom of the first intermediate rod 301 is hinged to the base 1.

[0033] Specifically, the extension and retraction of the first lifting cylinder 4 can be adjusted by controlling the operating angle of the two sets of left connecting rods 3 through the first intermediate rod 301; when the first lifting cylinder 4 extends, the two sets of left connecting rods 3 rotate upward synchronously; when the first lifting cylinder 4 retracts, the two sets of left connecting rods 3 move downward synchronously; in conjunction with the two-stage lifting connecting rod on the right, the lifting and lowering of the conveyor table 10 can be controlled.

[0034] Please see Figures 1 to 5Optionally, the right-side lifting linkage includes two sets of lower right linkages 5, which are symmetrically arranged and whose bottoms are respectively hinged to the top of the base 1. The tops of the two linkages are respectively hinged to upper right linkages 6, and the tops of the two sets of upper right linkages 6 are respectively hinged to the bottom of the conveyor table 10. A second intermediate rod 501 is connected between the two sets of lower right linkages 5, and a third intermediate rod 601 is connected between the two sets of upper right linkages 6. A second lifting cylinder 7 is arranged between the second intermediate rod 501 and the third intermediate rod 601. The top of the second lifting cylinder 7 is hinged to the third intermediate rod 601, and the bottom of the second lifting cylinder 7 is hinged to the second intermediate rod 501.

[0035] Specifically, adjusting the second lifting cylinder 7 can adjust the angle between the upper right connecting rod 6 and the lower right connecting rod 5, thereby adjusting the operating angle of the conveyor table 10 to meet the conveying requirements of different objects.

[0036] Please see Figures 1 to 5 Optionally, a maintenance ratchet assembly 9 is also provided on the right lifting linkage;

[0037] The inspection ratchet assembly 9 includes a limiting tooth 901, a limiting tooth 901 fixedly connected to the lower right connecting rod 5, and a ratchet rod 902 rotatably connected to the upper right connecting rod 6. The bottom of the ratchet rod 902 is provided with ratchet teeth that can mesh with the limiting tooth 901.

[0038] Specifically, the angle between the lower right link 5 and the upper right link 6 is locked by using a combination of ratchet teeth and limit teeth 901.

[0039] Please see Figures 1 to 5 Optionally, a magnet 903 is provided on the upper right connecting rod 6 for magnetically fixing the ratchet rod 902; the magnet 903 can magnetically attract the ratchet rod 902 and fix it on the upper right connecting rod 6, so as to avoid the ratchet rod 902 from uncontrolledly engaging with the limiting tooth 901 and interfering with the movement of the upper right connecting rod 6 and the lower right connecting rod 5 when the second lifting cylinder 7 adjusts the angle of the upper right connecting rod 6 and the lower right connecting rod 5.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0041] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety locking device for a conveyor frame, comprising a conveyor frame, the conveyor frame including a base (1) and a conveyor platform (10), wherein the base (1) is provided with a left lifting linkage and a right lifting linkage for lifting the conveyor platform (10), the conveyor platform (10) is disposed on top of the two sets of lifting linkages, and a support frame (2) is provided around the top of the base (1), characterized in that, Also includes: Two sets of inspection bar assemblies (8) include bar bodies (803). The bar bodies (803) of the two sets of inspection bar assemblies (8) respectively abut against the bottom of the left lifting link and the right lifting link. The two ends of the bar body (803) are symmetrically provided with bases (801). The bases (801) overlap the front and rear sides of the support frame (2). The bottom of the base (801) is provided with a clamping plate (805). The base (801) is provided with an adjustment part for driving the clamping plate (805) to clamp the support frame (2).

2. The safety locking device for the conveyor frame according to claim 1, characterized in that, The adjustment unit includes a guide slide plate (804), which extends downward through the top of the base (801) and is slidably connected to the base (801). The bottom of the guide slide plate (804) is connected to a clamping plate (805). An extension plate is provided on the top of the guide slide plate (804), and a screw (806) is screwed onto the extension plate. The bottom of the screw (806) is rotatably connected to the top of the base (801), and a drive assembly is provided on the top of the screw (806).

3. The safety locking device for the conveyor frame according to claim 2, characterized in that, The driving component is a driving block, with anti-slip rubber pads on the outer periphery and screw slots on the top of the driving block.

4. The safety locking device for the conveyor frame according to claim 1, characterized in that, The left lifting linkage includes two sets of left linkages (3), which are symmetrically arranged and whose bottoms are hinged to the top of the base (1) and whose tops are hinged to the bottom of the conveyor (10); a first intermediate rod (301) is connected between the two sets of left linkages (3); a first lifting cylinder (4) is provided between the first intermediate rod (301) and the base (1); the top of the first lifting cylinder (4) is hinged to the first intermediate rod (301) and the bottom of the first intermediate rod (301) is hinged to the base (1).

5. The safety locking device for the conveyor frame according to claim 1, characterized in that, The right-side lifting linkage includes two sets of lower right linkages (5), which are symmetrically arranged and whose bottoms are respectively hinged to the top of the base (1). The tops of the two linkages are respectively hinged to upper right linkages (6), and the tops of the two sets of upper right linkages (6) are respectively hinged to the bottom of the conveyor table (10). A second intermediate rod (501) is connected between the two sets of lower right linkages (5), and a third intermediate rod (601) is connected between the two sets of upper right linkages (6). A second lifting cylinder (7) is arranged between the second intermediate rod (501) and the third intermediate rod (601). The top of the second lifting cylinder (7) is hinged to the third intermediate rod (601), and the bottom of the second lifting cylinder (7) is hinged to the second intermediate rod (501).

6. The safety locking device for the conveyor frame according to claim 5, characterized in that, The right-side lifting linkage is also equipped with a maintenance ratchet assembly (9).

7. The safety locking device for the conveyor frame according to claim 6, characterized in that, The inspection ratchet assembly (9) includes a limiting tooth (901), the limiting tooth (901) is fixedly connected to the lower right connecting rod (5), and a ratchet rod (902) is rotatably connected to the upper right connecting rod (6). The bottom of the ratchet rod (902) is provided with ratchet teeth that can mesh with the limiting tooth (901).

8. The safety locking device for the conveyor frame according to claim 7, characterized in that, The upper right connecting rod (6) is provided with a magnet (903) for magnetically fixing the ratchet rod (902).

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