A locking device for a rim body and a seat ring, a detachable rim and an engineering vehicle

Abstract

The utility model provides a locking device for a rim body and a seat ring, a detachable rim and an engineering vehicle, comprising a connecting seat fixed on the rim body, a mounting seat fixed on the seat ring and a limit block, wherein a protruding portion I of the limit block is inserted into a strip hole of the connecting seat, a protruding portion II of the limit block is clamped in a slot on the mounting seat, and a protruding portion III of the limit block is located between the connecting seat and the mounting seat; a locking component composed of a protrusion and a groove is provided between the protruding portion II of the limit block and the slot of the mounting seat. The technical solution provided by the utility model is simple and easy to install and greatly avoids the risk of the limit block falling off.

Description

Technical Field

[0001] The utility model relates to a locking device for a rim body and a seat ring, belonging to the technical field of rims of engineering vehicles. Background Art

[0002] The existing fully loaded 75-ton articulated trucks have been using 25.00 / 3.5-25 model tubeless five-piece detachable rims for a long time. In actual use, the rims that meet the GB / T 2883-2015 standard basically meet the use requirements.

[0003] However, in order to facilitate the removal of the rim and the replacement of tires, the limit blocks used to fix the seat ring and the rim body are not locked when designing this type of detachable rim. When the road conditions are poor and the wheel is under heavy load or turns, the limit blocks often fall off due to vibration and bumps. After falling off, there is no limit block to restrain it, and the rim body and the seat ring slide relative to each other. If it is not discovered in time, the rim will slide relative to each other and wear seriously, the tire will leak and collapse, damage the axle, and even threaten the safety of the driver. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a locking device for a rim body and a seat ring, that is, a locking component is added between a limit block and a slot of the seat ring, which is simple and easy to install and greatly avoids the risk of the limit block falling off.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In the first aspect, the utility model provides a locking device for a rim body and a seat ring, comprising a limit block, a connecting seat fixed on the rim body and a mounting seat fixed on the seat ring, wherein the protrusion I of the limit block is inserted into the strip hole of the connecting seat, the protrusion II of the limit block is clamped in the groove on the mounting seat, and the protrusion III of the limit block is located between the connecting seat and the mounting seat; a locking component consisting of a protrusion and a groove is provided between the protrusion II of the limit block and the groove of the mounting seat.

[0007] In some embodiments, a symmetrically arranged protrusion is provided on each of the two side surfaces of the protrusion II; a corresponding groove is provided on each of the two side surfaces of the slot, and the groove extends downward from the top of the side surface of the slot; the groove is divided into two areas, namely a guide area and a locking area; the limit block is assembled into the mounting seat, and the front part of the protrusion contacts the guide area, and the two cooperate to guide the limit block into the slot; the locking area is located at the bottom of the groove, and the outer contour of the locking area matches the outer contour of the protrusion, and when the limit block moves to contact the bottom surface of the slot, the protrusion can be fully inserted into the locking area.

[0008] In some embodiments, a corresponding protrusion is provided on each side surface of the slot; a symmetrically arranged groove is provided on each side surface of the protrusion II, and the groove extends downward from the top of the protrusion II; the groove is divided into two areas, namely a guide area and a locking area; the limit block is assembled into the mounting seat, and the front part of the protrusion contacts the guide area, and the two cooperate to guide the limit block into the slot; the locking area is located at the top of the groove, and the outer contour of the locking area matches the outer contour of the protrusion, and when the limit block moves to contact the bottom surface of the slot, the protrusion can be fully inserted into the locking area.

[0009] In some embodiments, the limiting block is provided with at least one notch at the bottom of one end away from the connecting seat, and a pry bar is inserted into the notch to lift the locked limiting block from the mounting seat for removal.

[0010] In a second aspect, the utility model provides a detachable rim, comprising a rim body and a seat ring, and also comprising a locking device between the rim body and the seat ring.

[0011] In some embodiments, a valve assembly is mounted on the rim body by bolt fastening, and is used to inflate and deflate the tire; a valve guard is welded to the rim body at a position adjacent to the valve assembly, covering a portion of the valve assembly.

[0012] In a third aspect, the utility model provides an engineering vehicle, comprising the above-mentioned locking device for the rim body and the seat ring; or, comprising the above-mentioned detachable rim.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The problem of detachable wheel rim limit block falling off during operation is solved.

[0015] 2. Preserve the original structure to the maximum extent possible. The original mold can continue to be used after repair, which can reduce cost investment and quickly go online.

[0016] 3. The locking structure formed between the protrusion and the groove avoids the addition of fasteners such as bolts or pins, eliminates the complex structure and disassembly and replacement procedures, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0018] In the attached picture:

[0019] Figure 1 This is an exploded view of the detachable wheel rim of the utility model;

[0020] Figure 2 It is an overall schematic diagram of the detachable wheel rim of the utility model;

[0021] Figure 3 It is an overall schematic diagram of the locking device of the rim body and the seat ring of the utility model;

[0022] Figure 4 It is a schematic diagram of the mounting seat of the utility model;

[0023] Figure 5 It is a schematic diagram of the limit block of the utility model;

[0024] Figure 6 It is a cross-sectional view of the locking device of the rim body and the seat ring of the utility model.

[0025] Figure identification: 1- rim body, 2- valve assembly, 3- seat ring, 4- limit block, 5- front retaining ring, 6- locking ring, 7- valve guard plate, 8- spoke, 9- connecting seat, 10- mounting seat, 11- rear retaining ring, 12- slot, 13- groove, 14- protrusion, 15- notch, 16- O-shaped groove, 41- protrusion I, 42- protrusion II, 43- protrusion III.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 3 , Figure 5 , Figure 6 As shown, a locking device for a rim body and a seat ring comprises at least one connecting seat 9, at least one mounting seat 10, and at least one limiting block 4; the connecting seat 9 is fixed on the annular axial surface of the rim body 1; the mounting seat 10 is fixed on the annular axial surface of the seat ring 3, and the mounting seat 10 corresponds to the connecting seat 9 one by one; a limiting block 4 acts between a group of connecting seats 9 and mounting seats 10, one end of the limiting block 4 is plugged into the connecting seat 9, and the other end of the limiting block 4 is tightly clamped together with the mounting seat 10, and the locking structure formed by the connecting seat 9, the limiting block 4 and the seat ring 3 prevents the rim body 1 and the seat ring 3 from sliding relative to each other, the connecting seat 9 and the rim body 1 can be an integrally formed structure, and the mounting seat 10 and the seat ring 3 can also be an integrally formed structure.

[0031] Specific plan: continue to refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the connection seat 9 has a strip hole, and the limit block 4 has a protrusion I41 for inserting into the strip hole. The mounting seat 10 has a slot 12 with an opening toward the outside, and the limit block 4 has a protrusion II42 for engaging in the slot 12, and a locking component is provided between the slot 12 and the protrusion II42 to prevent the limit block 4 from falling off the mounting seat 10. The limit block 4 has a protrusion III43, and when the limit block 4 is connected to the connection seat 9 and the mounting seat 10, the protrusion III43 is located between the connection seat 9 and the mounting seat 10, and is used to limit the movement of the limit block 4 in the radial direction.

[0032] It should be noted that the limiting block 4 is a cross structure as a whole, and each edge is rounded.

[0033] The above locking component is further described below.

[0034] Example 1: Reference Figure 4 , Figure 5 , Figure 6As shown, a symmetrically arranged protrusion 14 is provided on each of the two side surfaces of the protrusion II 42; a corresponding groove 13 is provided on each of the two side surfaces of the slot 12, the groove 13 extends downward from the top of the side surface of the slot 12, and the protrusion 14 and the groove 13 are used together to form a locking component; the groove 13 is divided into two areas, namely a guide area and a locking area; when the limit block 4 is assembled to the mounting seat 10, the front part of the protrusion 14 contacts the guide area, and the two cooperate to guide the limit block 4 into the slot 12; the locking area is located at the bottom of the groove 13, and the outer contour of the locking area matches the outer contour of the protrusion 14. When the limit block 4 moves to contact the bottom surface of the slot 12, the protrusion 14 can be fully inserted into the locking area.

[0035] Embodiment 2: A corresponding protrusion is provided on each side surface of the slot; a symmetrically arranged groove is provided on each side surface of the protrusion II, the groove extends downward from the top of the protrusion II, and the protrusion and the groove cooperate to form a locking component; the groove is divided into two areas, namely a guide area and a locking area; the limit block is assembled into the mounting seat, and the front part of the protrusion contacts the guide area, and the two cooperate to guide the limit block into the slot; the locking area is located at the top of the groove, and the outer contour of the locking area matches the outer contour of the protrusion, and when the limit block moves to contact the bottom surface of the slot, the protrusion can be completely inserted into the locking area.

[0036] For further solutions, see Figure 5 As shown, the limiting block 4 is provided with at least one notch 15 at the bottom of the end away from the connecting seat 9. The limiting block 4 after being locked is lifted up from the mounting seat 10 by inserting a pry bar into the notch 15 for removal.

[0037] It should be noted that the detachable rim uses the limit block 4 to fix the rim body 1 and the seat ring 3, and is the first component that is often removed when the rim is replaced with a tire. The limit block 4 constrains the rim body 1 and the seat ring 3 at the same time, and acts as a fixing pin to prevent the rim assembly from slipping and dislocating during operation, and offsets the radial force during rolling. However, after the conventional limit block is installed, it will shake when it is moved by hand, and the limit block will fall off frequently, resulting in relative misalignment and wear between the rim body 1 and the seat ring 3, which will seriously cause the tire or axle to be scrapped, endangering the safety of the driver. Now, a protrusion 14 and a notch 15 structure are added to the limit block, and a groove 13 is added to the mounting seat 10 on the seat ring 3. During installation, one end of the limit block 4 is inserted into the rectangular opening of the rim body 1, and the notch 15 of the limit block 4 is guided downward by the groove 13 of the seat ring 3, and the protrusion 14 is aligned with the groove 13. The limit block 4 is quickly smashed in by liquid nitrogen cooling or using a soft hammer, and the protrusion 14 of the limit block 4 is completely stuck in the mounting seat 10 on the seat ring 3. The limit block 4 fixed by the groove 13 can get rid of the risk of falling off. When the rim needs to be disassembled for tire replacement, a pry bar is used to insert the notch 15 of the limit block 4 and quickly tilt it up; then the tire holding machine is used to replace the remaining components in sequence, thereby achieving the purpose of improving the stability of the detachable rim structure while ensuring the efficiency of replacement.

[0038] like Figure 1 , Figure 2 As shown, the utility model also provides a detachable wheel rim, comprising a wheel rim body 1, a rear retaining ring 11, a front retaining ring 5, a seat ring 3, an axial limiting component and the above-mentioned locking device between the wheel rim body and the seat ring; the wheel rim body 1 is a cylindrical structure for assembling a tire; the rear retaining ring 11 is sleeved on the inner end of the wheel rim body 1, and is axially limited by a circle of flange structure at the end; the front retaining ring 5 is sleeved on the outer end of the wheel rim body 1; the seat ring 3 is sleeved between the front retaining ring 5 and the wheel rim body 1, and the front part of the seat ring 3 is inserted into the tire, and a circle of flange structure at the rear part of the seat ring 3 is used to axially limit the front retaining ring 5; the axial limiting component is installed at the outer end of the wheel rim body 1, and is used to axially limit the seat ring 3; the locking device between the wheel rim body and the seat ring is used to lock the wheel rim body 1 and the seat ring 3 together.

[0039] like Figure 1 , Figure 6 As shown, the axial limiting component is an open locking ring 6, an O-shaped groove 16 is provided at the outer end of the rim body 1, the locking ring 6 is sleeved in the O-shaped groove 16 and the part of the locking ring 6 protruding from the O-shaped groove 16 is in contact with the seat ring 3, thereby realizing axial limiting of the seat ring 3.

[0040] A further solution: the detachable rim also includes a valve assembly 2, a valve guard 7 and a spoke 8; the valve assembly 2 is fixed to the rim body 1 by bolt fastening, and is used to inflate and deflate the tire; the valve guard 7 is welded to the rim body 1 adjacent to the valve assembly 2, covering a portion of the valve assembly 2; the spoke 8 is welded to the rim body 1.

[0041] During the actual assembly, the valve guard plate 7 and the spoke 8 are first fixed to the rim body 1 by welding, and the valve assembly 2 is fixed to the rim body 1 by bolt fastening. The remaining rim parts are assembled with the tire. The rear retainer 11 must be inserted into the rim body 1 first, and then the tire and the front retainer 5 are installed; the seat ring 3 is inserted between the front retainer 5 and the rim body 1, and it is important not to squeeze or cause the tire to fold in the middle, and the seat ring 3 is pressed down by a tire holding machine to expose the O-shaped groove 16 of the rim body 1. The lock ring 6 is inserted along the O-shaped groove 16 exposed by the rim body 1, and finally the plug hole of the connecting seat 9 is aligned with the card slot 12 of the mounting seat 10, and the limit block 4 is embedded therein to play the role of fixing the limit rim.

[0042] The utility model also provides an engineering vehicle, comprising the locking device for the rim body and the seat ring; or comprising the detachable rim.

[0043] In summary, the utility model solves the problem of the detachable wheel rim limit block falling off during operation; the utility model preserves the original structure to the maximum extent, and the original mold can continue to be used after repair, which can reduce cost investment and quickly go online; the locking structure formed between the protrusion and the groove avoids adding fasteners such as bolts or pins, eliminates complex structures and disassembly and replacement procedures, and saves time and effort.

[0044] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0045] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0046] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A locking device for a rim body and a seat ring, comprising a limit block, a connecting seat fixed on the rim body and a mounting seat fixed on the seat ring, wherein the protruding portion I of the limit block is inserted into the strip hole of the connecting seat, the protruding portion II of the limit block is clamped in the clamping groove on the mounting seat, and the protruding portion III of the limit block is located between the connecting seat and the mounting seat; characterized in that: A locking component consisting of a protrusion and a groove is provided between the protruding portion II of the limit block and the clamping groove of the mounting seat.

2. A locking device for a rim body and a seat ring according to claim 1, characterized in that: The two sides of the protruding portion II are each provided with a symmetrically arranged protrusion; A corresponding groove is provided on each side surface of the card slot, and the groove extends downward from the top of the side surface of the card slot; The groove is divided into two areas, namely: A guide area, the limit block is assembled into the mounting seat, the front part of the protrusion contacts the guide area, and the two cooperate to guide the limit block into the slot; The locking area is located at the bottom of the groove, and the outer contour of the locking area matches the outer contour of the protrusion. When the limit block moves to contact the bottom surface of the slot, the protrusion can be fully inserted into the locking area.

3. The locking device for a rim body and a seat ring according to claim 1, characterized in that: A corresponding protrusion is respectively provided on both side surfaces of the card slot; A symmetrically arranged groove is provided on each of the two side surfaces of the protruding portion II, and the groove extends downward from the top of the protruding portion II; The groove is divided into two areas, namely: A guide area, the limit block is assembled into the mounting seat, the front part of the protrusion contacts the guide area, and the two cooperate to guide the limit block into the slot; The locking area is located at the top of the groove, and the outer contour of the locking area matches the outer contour of the protrusion. When the limit block moves to contact the bottom surface of the slot, the protrusion can be fully inserted into the locking area.

4. The locking device for a rim body and a seat ring according to claim 1, characterized in that: The limiting block is provided with at least one notch at the bottom of one end away from the connecting seat, and a pry bar is inserted into the notch to lift the locked limiting block from the mounting seat for removal.

5. A detachable rim, comprising a rim body and a seat ring, characterized in that: It also includes a locking device for the rim body and the seat ring as described in any one of claims 1 to 4.

6. The detachable rim according to claim 5, characterized in that: The wheel rim is fastened with a valve assembly by bolts and is used to inflate and deflate the tire. The wheel rim is welded with a valve guard plate at a position adjacent to the valve assembly to cover a portion of the valve assembly.

7. An engineering vehicle, characterized in that: It comprises a locking device for a rim body and a seat ring as claimed in any one of claims 1 to 4; or, it comprises a detachable rim as claimed in claim 5 or 6.

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