Foldable main valve subassembly tool for assembly line

By designing a foldable main valve assembly fixture, the height problem of the excavator main valve assembly line was solved, enabling flexible equipment layout and worker safety, improving assembly efficiency and reducing costs.

CN223849172UActive Publication Date: 2026-01-30XCMG EXCAVATOR MACHINERY CO LTD
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Patent Information

Application Number
CN202520306026.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-01-30
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

In existing technologies, the tooling height of excavator main valve assembly lines is relatively high, which leads to increased equipment foundation construction costs, low worker operating efficiency, and safety risks.

Method used

Design a foldable main valve assembly fixture. Through the hinged main valve fixing plate and support frame structure, the fixture can be folded and unfolded, reducing the fixture height, eliminating the need for equipment foundation design or platform, and using locking components to ensure the stability of the fixture.

Benefits of technology

It enables the relocation of assembly lines, reduces construction costs, improves assembly efficiency, and avoids safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a foldable main valve subassembly tool for an assembly line. The foldable main valve subassembly tool comprises a base, a main valve fixing plate used for fixing a main valve, a supporting frame, a first locking component and a second locking component. The base is fixed on a plate chain line; the main valve fixing plate is hinged to the base, and the main valve fixing plate can turn over on the base around a hinge point, so that the main valve fixing plate is in an unfolded or folded state; the supporting frame is fixed to the plate chain line located on the front side of the base and used for supporting the main valve fixing plate in the folded state. The first locking component is connected between the supporting frame and the main valve fixing plate and used for fixing the main valve fixing plate to the supporting frame. The second locking component is connected between the base and the main valve fixing plate and used for fixing the main valve fixing plate in the unfolded state to the base. According to the tool, after the main valve subassembly is completed, the tool is folded and fixed, the height of the tool is reduced, the overall height of an assembly line is reduced, and the design of a foundation or a foot board of the assembly line is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of foldable department tool for main valve assembly line, it is especially suitable for excavator industry main valve assembly line, belong to excavator assembly technical field. BACKGROUND

[0002] When the height of assembly line body is designed, the height suitable for worker operation is considered from the ergonomics, when the height of assembly line is higher, the part of line body is installed below ground by designing base, or the height of worker operation is increased by designing step platform on both sides of assembly line, to meet the height of worker operation position.

[0003] When small excavator main valve assembly line uses plate chain line or friction line, the tool for fixing main valve is generally vertical whole plate, the height of tool is higher, and the height space required when tool returns from lower layer of line body is larger. There are two general solutions: 1, design assembly line base, part of assembly line is underground, tool returns from lower layer and uses underground space; 2, set high step platform on both sides of assembly line, worker works on the step platform.

[0004] The prior art has the following problems:

[0005] 1, if the design of assembly line equipment base scheme is used, part of steel structure of equipment is installed in base, cannot be moved, and the line body cannot be moved for later layout optimization, the design of base must come to base construction cost, increase overall construction cost.

[0006] 2, if the scheme of setting high step platform on both sides of assembly line is used, worker needs to go up and down step platform every time to take material, which will affect the assembly efficiency of worker, and there is the risk of falling. SUMMARY

[0007] According to the deficiencies of prior art, the utility model provides a kind of foldable main valve department tool for assembly line, after main valve department is completed, the tool is fixed by folding, reduces the height of tool, reduces the space required for returning of lower layer of tool, realizes the reduction of overall height of assembly line, avoids the design of assembly line base or step platform.

[0008] The utility model is realized according to the following technical scheme:

[0009] A kind of foldable main valve department tool for assembly line, comprising:

[0010] Base, fixed on plate chain line;

[0011] Main valve fixing plate for fixing main valve, hinged with the base, the main valve fixing plate can be turned over on base around hinge point, so that main valve fixing plate is in unfolded or folded state;

[0012] A support frame is fixed on the plate chain line at the front side of the base, and is used to support the main valve fixed plate in the folded state;

[0013] A first locking component is connected between the support frame and the main valve fixed plate, and is used to fix the main valve fixed plate on the support frame;

[0014] A second locking component is connected between the base and the main valve fixed plate, and is used to fix the main valve fixed plate on the base in the unfolded state.

[0015] In some embodiments, the first locking component comprises:

[0016] A bolt is inserted into two side plates at the top of the support frame in a direction perpendicular to the running direction of the plate chain line;

[0017] A spring is sleeved on the bolt between the two side plates, with the rear end of the spring abutting against one side plate and the front end of the spring abutting against a flange structure on the bolt;

[0018] A lock seat with a lock hole is fixed on the bottom surface of the main valve fixed plate; the main valve fixed plate is folded and falls on the support frame, and the lock hole on the lock seat is coaxially arranged with the bolt; under the elastic force of the spring, the front end of the bolt is pushed to be inserted into the lock hole.

[0019] In some embodiments, the second locking component comprises a fixing pin; the main valve fixed plate is unfolded and falls on the base; the main valve fixed plate and the base are provided with a through hole coaxially arranged at the position where they are in contact; the fixing pin is inserted into the coaxially arranged through holes, and the main valve fixed plate is prevented from being flipped around the hinge point towards the support frame.

[0020] In some embodiments, the base is provided with a plug hole for storing the fixing pin when the main valve fixed plate is in the folded state.

[0021] In some embodiments, the second locking component comprises a quick clamp; the main valve fixed plate is unfolded and falls on the base; the fixed part of the quick clamp is installed on the base, and the movable part of the quick clamp is installed on the main valve fixed plate; the main valve fixed plate is fixed on the base by connecting the movable part and the fixed part of the quick clamp together.

[0022] In some embodiments, the quick clamp adopts a snap lock; the fixed part of the quick clamp is a mounting seat one with a clamping groove; the movable part of the quick clamp is composed of a mounting seat two, a handle hinged to the mounting seat two, and a pull ring hinged to the handle; the mounting seat one is fixed on the main valve fixed plate by screws, and the mounting seat two is fixed on the base by screws; the pull ring is pulled tightly in the clamping groove by rotating the handle, and the quick clamp is in the locked state; the pull ring is separated from the clamping groove by rotating the handle, and the quick clamp is in the unlocked state.

[0023] In some embodiments, the main valve fixing plate is an L-shaped plate as a whole, the bottom plate I of the main valve fixing plate is hinged to the top plate of the base through a rotating shaft, the vertical plate I of the main valve fixing plate is fixed with the main valve, and the main valve extends along the length direction of the vertical plate I; when the bottom plate I of the main valve fixing plate is overlapped with the top plate of the base, the vertical plate I of the main valve fixing plate is in an unfolded state; when the bottom plate I of the main valve fixing plate is separated from the top plate of the base at an angle, the main valve fixing plate is in a folded state.

[0024] In some embodiments, the vertical plate I of the main valve fixing plate is provided with two long circular holes arranged at intervals and extending along the direction perpendicular to the plate chain line at the end close to the support frame, and the main valve with different mounting hole distances can be fixed on the vertical plate I of the main valve fixing plate by respectively penetrating two bolts into the corresponding long circular holes and then screwing them in the threaded holes of the main valve.

[0025] In some embodiments, the base comprises:

[0026] a bottom plate II fixed on the plate chain line through a plurality of bolts;

[0027] a vertical plate II fixed on the bottom plate II;

[0028] a top plate fixed on the vertical plate II, and the top plate is an inclined plate inclined towards the direction of the support frame, and when the bottom plate I of the main valve fixing plate is overlapped with the top plate of the base, the angle between the center line of the length direction of the vertical plate I of the main valve fixing plate and the center line of the running direction of the plate chain line is less than 90 degrees.

[0029] In some embodiments, the support frame is composed of a U-shaped plate and a reinforcing plate welded in the U-shaped plate; the bottom surface of the U-shaped plate is fixed on the plate chain line, and the length of the reinforcing plate is less than the length of the side vertical plate of the U-shaped plate, so that the top of the reinforcing plate and the two side vertical plates of the U-shaped plate form a recess for assembling the first locking component.

[0030] The utility model has the advantages of:

[0031] The device foundation scheme is designed to realize the assembly line without device foundation design, cancel the construction cost, and the assembly line is strong in migration and convenient for process layout optimization.

[0032] The high platform is set to cancel the platform design, improve the assembly efficiency by 10%, and avoid the safety risk of personnel stepping on the empty platform. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings are used to provide further understanding of the present application and serve as a part of the present application to explain the embodiments of the present application and their descriptions, but do not constitute improper limitations on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0034] In the drawings:

[0035] Figure 1 It is a whole schematic view (unfolded state) of the foldable main valve assembly tool for the assembly line of the present application;

[0036] Figure 2 It is a whole schematic view (folded state) of the foldable main valve assembly tool for the assembly line of the present application;

[0037] Figure 3 It is an enlarged view of the quick clamp of the present application;

[0038] Figure 4 It is an enlarged view of the first locking part of the present application.

[0039] The drawing label: 1-base, 2-main valve fixing plate, 3-rotary shaft, 4-fixing pin, 5-quick clamp, 6-support frame, 7-first locking part, 8-main valve, 9-plate chain line; 51-mounting seat one, 52-mounting seat two, 53-handle, 54-pull ring; 71-latch, 72-spring, 73-lock seat;

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application, and the following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] like Figure 1 , Figure 2 As shown, a foldable main valve assembly fixture for an assembly line includes a base 1, a main valve fixing plate 2 for fixing a main valve 8, a support frame 6, a first locking component 7, and a second locking component. The base 1 is fixed on a plate chain 9. The main valve fixing plate 2 is hinged to the base 1, and the main valve fixing plate 2 can be flipped around the hinge point on the base 1, so that the main valve fixing plate 2 is in an unfolded or folded state. The support frame 6 is fixed on the plate chain 9 located on the front side of the base 1, and is used to support the main valve fixing plate 2 in the folded state. The first locking component 7 is connected between the support frame 6 and the main valve fixing plate 2, and is used to fix the main valve fixing plate 2 on the support frame 6. The second locking component is connected between the base 1 and the main valve fixing plate 2, and is used to fix the main valve fixing plate 2 in the unfolded state on the base 1.

[0045] The specific structure of the first locking component described above will be further explained below.

[0046] like Figure 1 , Figure 2 , Figure 4 As shown, the first locking component 7 includes a pin 71, a spring 72, and a lock seat 73 with a lock hole; the pin 71 is inserted into two side plates at the top of the support frame 6 perpendicular to the direction of the plate chain line 9; the spring 72 is fitted onto the pin 71 located between the two side plates, with the rear end of the spring 72 abutting against one side plate and the front end of the spring 72 abutting against a flange structure located on the pin 71; the lock seat 73 is fixed to the bottom surface of the main valve fixing plate 2; the main valve fixing plate 2 is folded onto the support frame 6, and the lock hole on the lock seat 73 is arranged coaxially with the pin 71, and under the elastic force of the spring 72, the front end of the pin 71 is pushed into the lock hole.

[0047] The specific structure of the second locking component described above will be further explained below.

[0048] like Figure 1 As shown, the second locking component includes a fixing pin 4. The main valve fixing plate 2 unfolds and falls on the base 1. Each part of the main valve fixing plate 2 that contacts the base 1 is provided with a through hole arranged on the same axis. The fixing pin 4 is inserted into the through hole arranged on the same axis to prevent the main valve fixing plate 2 from flipping around the hinge point toward the support frame 6.

[0049] Further, as shown in Figure 2 , the base 1 is provided with a socket for storing the fixing pin 4 when the main valve fixing plate 2 is in the folded state.

[0050] Further, as shown in Figure 1 , Figure 2 , the second locking component comprises a quick clamp 5, the main valve fixing plate 2 is unfolded and falls on the base 1, the fixed part of the quick clamp 5 is installed on the base 1, the movable part of the quick clamp 5 is installed on the main valve fixing plate 2, and the main valve fixing plate 2 is fixed on the base 1 by connecting the movable part and the fixed part of the quick clamp 5 together.

[0051] Preferably, as shown in Figure 1 , Figure 2 , the quick clamp 5 adopts a snap lock, the fixed part is an installation seat one with a clamping groove, the movable part of the quick clamp comprises an installation seat two 52, a handle 53 hinged to the installation seat two 52, and a pull ring 54 hinged to the handle 53; the installation seat one 51 is fixed on the main valve fixing plate 2 by screws, and the installation seat two 52 is fixed on the base 1 by screws; rotating the handle 53 tightens the pull ring 54 in the clamping groove, and the quick clamp 5 is in the locked state; rotating the handle 53 releases the pull ring 54 from the clamping groove, and the quick clamp 5 is in the unlocked state.

[0052] The specific structure of the main valve fixing plate is further described as follows.

[0053] As shown in Figure 1 , Figure 2 , the main valve fixing plate 2 is an L-shaped plate as a whole, the bottom plate I of the main valve fixing plate 2 is hinged to the top plate of the base 1 through the rotating shaft 3, and the vertical plate I of the main valve fixing plate 2 is fixed with the main valve 8, and the main valve 8 is placed along the length direction of the vertical plate I; when the bottom plate I of the main valve fixing plate 2 is overlapped with the top plate of the base 1, the vertical plate I of the main valve fixing plate 2 is in the unfolded state; when the bottom plate I of the main valve fixing plate 2 is separated from the top plate of the base 1 at an angle, the main valve fixing plate 2 is in the folded state.

[0054] Further, as shown in Figure 1 , the vertical plate I of the main valve fixing plate 2 is provided with two long circular holes arranged at intervals and extending along the direction perpendicular to the plate chain line 9 at the end close to the support frame 6, and the two bolts are respectively inserted into the corresponding long circular holes and screwed in the threaded holes of the main valve 8, so that the main valve 8 with different installation hole distances can be fixed on the vertical plate I of the main valve fixing plate 2.

[0055] The specific structure of the base is further described as follows.

[0056] As shown in Figure 1 ,Figure 2 As shown, the base 1 includes a base plate II, a vertical plate II, and a top plate; the base plate II is fixed to the plate chain 9 by multiple bolts; the vertical plate II is fixed to the base plate II; the top plate is fixed to the vertical plate II, and the top plate is an inclined plate that is tilted towards the support frame 6. When the base plate I of the main valve fixing plate 2 and the top plate of the base 1 are stacked together, the angle between the center line of the vertical plate I of the main valve fixing plate 2 in the length direction and the center line of the plate chain 9 in the running direction is less than 90 degrees.

[0057] The following provides a further explanation of the specific structure of the aforementioned support frame.

[0058] like Figure 1 , Figure 2 As shown, the support frame 6 consists of a U-shaped plate and a reinforcing plate welded in the U-shaped plate; the bottom surface of the U-shaped plate is fixed on the plate chain line 9, and the length of the reinforcing plate is less than the length of the side uprights of the U-shaped plate, so that the top of the reinforcing plate and the two side uprights of the U-shaped plate form a notch for assembling the first locking component 7.

[0059] In summary, this utility model provides a foldable main valve assembly fixture for assembly lines, including a base 1, a main valve fixing plate 2, a rotating shaft 3, a fixing pin 4, a quick clamp 5, a support frame 6, and a first locking component 7. The base 1 is used to fix the entire fixture on the assembly line; the main valve fixing plate 2 is used to fix the main valve 8, and the design of the elongated hole on the plate can accommodate different main valve mounting hole spacings; the rotating shaft 3 is used to connect the main valve fixing plate 2 and the base 1, allowing the main valve fixing plate 2 to rotate around the rotating shaft 3; the fixing pin 4 and the quick clamp 5 are used to fix the main valve fixing plate 2 onto the base 1 during the assembly of the main valve 8, ensuring a close fit and preventing the main valve fixing plate 2 from tilting backward around the rotating shaft 3 during worker operation. Figure 1 , 3 As shown; after folding the tooling, insert the fixing pin 4 into the hole on the side of the base 1 for storage, as shown. Figure 2 As shown; the support frame 6 is used to support the folded main valve fixing plate 2, so that the main valve 8 is in a horizontal state for easy hoisting; the first locking component 7 is used to lock the main valve fixing plate 2 onto the support frame 6 to prevent the tooling from unfolding when it moves to the lower layer of the line, causing the line to jam or interfere, etc. Figure 4 As shown.

[0060] As can be seen from the above, this utility model adopts a split-type rotating folding design, and the height of the tooling can be reduced according to requirements by adjusting the height of the rotating shaft. This utility model uses a large-plane fit design between the base and the main valve fixing plate, as well as anti-tipping mechanisms such as fixing pins and quick clamps, to achieve stability after the tooling is unfolded. This utility model uses a support frame and a first locking component design to achieve stability after the tooling is folded.

[0061] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

[0062] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features, not all embodiments need necessarily include those certain features. To the extent that different embodiments include the same, similar or equivalent features, other embodiments are regarded as falling within the scope of the application and forming a different embodiment. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved by the present application.

[0063] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments, it is not intended to limit the present application, and any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solutions of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the scope of the present application.

Claims

1. A foldable main valve assembly fixture for an assembly line, characterized in that, The utility model relates to a main valve fixing device for a plate chain line, comprising: a base fixed on the plate chain line; a main valve fixing plate for fixing the main valve, hinged to the base, the main valve fixing plate being able to turn on the base around the hinge point so that the main valve fixing plate is in an unfolded or folded state; a support frame fixed on the plate chain line at the front side of the base for supporting the main valve fixing plate in the folded state; a first locking component connected between the support frame and the main valve fixing plate for fixing the main valve fixing plate on the support frame; a second locking component connected between the base and the main valve fixing plate for fixing the main valve fixing plate in the unfolded state on the base.

2. The foldable main valve assembly tooling for assembly line according to claim 1, characterized in that, The first locking component comprises: a bolt inserted into two side uprights on the top of the support frame perpendicular to the direction in which the plate chain line runs; a spring sleeved on the bolt between the two side uprights, the back end of the spring abutting against one side upright and the front end of the spring abutting against a flange structure on the bolt; a lock seat with a lock hole fixed on the bottom surface of the main valve fixing plate, the lock hole coaxially arranged with the bolt, the front end of the bolt pushed into the lock hole under the elastic force of the spring when the main valve fixing plate is folded on the support frame.

3. The foldable main valve assembly tooling for assembly line as claimed in claim 1, wherein: The second locking component comprises a fixed pin, the main valve fixing plate unfolded on the base, each of the parts where the main valve fixing plate contacts the base being provided with a through hole coaxially arranged, the fixed pin inserted into the through holes coaxially arranged above and below to prevent the main valve fixing plate from turning around the hinge point towards the support frame.

4. The foldable main valve assembly tooling for assembly line as claimed in claim 3, wherein: The base is provided with a plug hole for storing the fixed pin when the main valve fixing plate is in the folded state.

5. The foldable main valve assembly tooling for assembly line as claimed in claim 1 or 3, wherein: The second locking component comprises a quick clamp, the main valve fixing plate unfolded on the base, the fixed part of the quick clamp mounted on the base and the movable part of the quick clamp mounted on the main valve fixing plate, the main valve fixing plate fixed on the base by the movable part and the fixed part of the quick clamp connected together.

6. The foldable main valve assembly tooling for assembly line as claimed in claim 5, wherein: The quick clamp adopts a snap lock, the fixed part of the quick clamp being a mounting seat one with a clamping groove, the movable part of the quick clamp consisting of a mounting seat two, a handle hinged to the mounting seat two and a pull ring hinged to the handle; the mounting seat one fixed on the main valve fixing plate by a screw, the mounting seat two fixed on the base by a screw; the pull ring pulled tight in the clamping groove by rotating the handle, the quick clamp in the locked state; the pull ring separated from the clamping groove by rotating the handle, the quick clamp in the unlocked state.

7. The foldable main valve assembly tooling for assembly line as claimed in claim 1, wherein: The main valve fixing plate is an L-shaped plate as a whole, the bottom plate I of the main valve fixing plate hinged to the top plate of the base through a rotating shaft, the upright plate I of the main valve fixing plate fixed with the main valve, the main valve extending along the length direction of the upright plate I; the upright plate I of the main valve fixing plate in the unfolded state when the bottom plate I of the main valve fixing plate stacked with the top plate of the base; the main valve fixing plate in the folded state when the bottom plate I of the main valve fixing plate separated from the top plate of the base at an angle.

8. The foldable main valve assembly tooling for assembly line as claimed in claim 7, wherein: The vertical plate I of the main valve fixing plate is provided with two long round holes arranged at intervals and extending along the direction perpendicular to the plate chain line at the end close to the support frame, and the main valve with different installation hole distances can be fixed on the vertical plate I of the main valve fixing plate by respectively screwing two bolts into the corresponding long round holes and then screwing them into the threaded holes of the main valve.

9. The foldable main valve assembly tooling for assembly line as claimed in claim 7, wherein, The base comprises: a bottom plate II fixed on the plate chain line by a plurality of bolts; a vertical plate II fixed on the bottom plate II; a top plate fixed on the vertical plate II, and the top plate is an inclined plate inclined toward the support frame, and when the bottom plate I of the main valve fixing plate is overlapped with the top plate of the base, the included angle between the center line of the vertical plate I of the main valve fixing plate in the length direction and the center line of the plate chain line in the running direction is less than 90 degrees.

10. The foldable main valve assembly tooling for assembly line as claimed in claim 1, wherein: The support frame is composed of a U-shaped plate and a reinforcing plate welded in the U-shaped plate, the bottom surface of the U-shaped plate is fixed on the plate chain line, and the length of the reinforcing plate is less than the length of the side vertical plate of the U-shaped plate, so that the top of the reinforcing plate and the two side vertical plates of the U-shaped plate form a recess for assembling the first locking component.