Centering assembly aid

Abstract

This utility model relates to the field of pipe clamp installation technology, specifically to an alignment and assembly auxiliary device. The alignment and assembly auxiliary device includes a connecting rod, a connecting head, a positioning component, and a clamping component with coincident axes. The connecting rod is inserted into a pin hole in the boom, and the connecting head is fitted onto the connecting rod and used to be coaxially clamped and fixed by the pipe clamp at a preset assembly position. The positioning component is located between the connecting head and the clamping component, fitted onto the connecting rod, and the clamping component is detachably fitted onto the connecting rod. The positioning component and the clamping component can be respectively engaged at both ends of the pin hole, and the positioning component and the clamping component can make the axis of the connecting rod coincide with the axis of the pin hole, so as to align the pipe clamp clamped and fixed to the connecting head with the pin hole. Using the alignment and assembly auxiliary device of this utility model, the pipe clamp and the pin hole can be aligned during the assembly process.

Description

Technical Field

[0001] This utility model relates to the field of pipe clamp installation technology for conveying pipes, and specifically to an alignment and assembly auxiliary device. Background Technology

[0002] like Figure 1 and Figure 2 As shown, the concrete pump truck includes a delivery pipe 6 and a boom 7. The delivery pipe 6 further includes a first bend 61 and a second bend 62, which are sealed together by pipe clamps 63 and can rotate relative to each other via the pipe clamps 63. The boom 7 further includes a first boom section 71 and a second boom section 72. The pipe clamps 63 are fixedly connected to the second boom section 72 via brackets 75, and the first boom section 71 and the second boom section 72 are rotatably connected by pins 73. During the operation of the concrete pump truck, the first boom section 71 and the second boom section 72 will rotate relative to each other via the pins 73, and the first bend 61 and the second bend 62 will also rotate relative to each other via the pipe clamps 63. The pipe clamps 63 need to be aligned with the pin holes 74 where the pins 73 are installed; that is, the axis of the pipe clamps 63 and the axis of the pin holes 74 need to coincide.

[0003] However, there is currently a lack of effective means to align the pipe clamps and pin holes during assembly. Therefore, after the pipe clamps are assembled, the alignment between the pipe clamps and pin holes is often poor, which can lead to problems such as support cracking and failure, abnormal wear and tearing of the pipe clamps, or pipe bursts during subsequent operation of the concrete pump truck. Utility Model Content

[0004] The purpose of this invention is to provide an alignment assembly auxiliary device that enables the pipe clamp and pin hole to be aligned during the assembly process.

[0005] To achieve the above objectives, this utility model provides an alignment and assembly auxiliary device, which includes a connecting rod, a connector, a positioning element, and a clamping element whose axes coincide. The connecting rod is used to pass through the pin hole of the boom, and the connector is sleeved on the connecting rod and used to be coaxially clamped and fixed by the pipe clamp at a preset assembly position. The positioning element is located between the connector and the clamping element, and is sleeved on the connecting rod. The clamping element is detachably sleeved on the connecting rod. The positioning element and the clamping element can be respectively engaged at both ends of the pin hole, and the positioning element and the clamping element can make the axis of the connecting rod coincide with the axis of the pin hole, so as to align the pipe clamp clamped and fixed to the connector with the pin hole.

[0006] In some embodiments, the positioning element includes a conical positioning cone, which is coaxially sleeved on the connecting rod. The side of the positioning cone facing the clamping element can be engaged with the end of the pin hole facing the tube clamp. The outer diameter of the positioning cone gradually increases along the direction from the clamping element to the positioning element.

[0007] In some embodiments, the positioning element includes a positioning tube, which is fixedly connected to the side of the positioning cone facing the connector, and the positioning tube is coaxially sleeved on the connecting rod; and the positioning tube is threadedly connected to the connecting rod so that the positioning tube can drive the positioning cone to move and position.

[0008] In some embodiments, the length of the positioning tube is greater than the length of the positioning cone; and / or, the positioning cone and the positioning tube are also connected by a plurality of first reinforcing ribs.

[0009] In some embodiments, the clamping member includes a conical clamping cone that is detachably coaxially sleeved on the connecting rod. The side of the clamping cone facing the positioning member can be engaged with the end of the pin hole facing away from the tube clamp. The outer diameter of the clamping cone gradually increases along the direction from the positioning member to the clamping member.

[0010] In some embodiments, the clamping member further includes a clamping tube, which is slidably coaxially sleeved on the connecting rod and is detachable, and is fixedly connected to the side of the clamping cone opposite to the connecting head.

[0011] In some embodiments, the clamping cone and the clamping tube are also connected by a plurality of second reinforcing ribs; and / or, the centering assembly aid further includes a locking sleeve, the clamping member being disposed between the positioning member and the locking sleeve, the locking sleeve being coaxially sleeved on the connecting rod, the locking sleeve being threadedly connected to the connecting rod, and the locking sleeve being movable along the connecting rod and detachable.

[0012] In some embodiments, the connecting rod includes a straight-extending outer rod body, a connector, a positioning member, and a clamping member coaxially sleeved on the outer rod body, and an installation channel extending axially inside the outer rod body, wherein an inner liner tube is installed in the installation channel.

[0013] In some embodiments, the outer periphery of the connecting rod is provided with a limiting ring, the limiting ring is distributed around the axis of the connecting rod, the limiting ring is disposed between the connector and the positioning member, and the limiting ring can restrict the connector from moving toward the positioning member; and / or, the connecting rod is equipped with a limiting bolt, the connector is disposed between the limiting bolt and the positioning member, the limiting bolt extends radially along the connecting rod and can restrict the connector from disengaging from the connecting rod.

[0014] In some embodiments, the connector includes an inner ring body and an outer ring body. The inner ring body is sleeved on the connecting rod and detachably connected to the connecting rod. The outer ring body surrounds the inner ring body. The inner ring body and the outer ring body are connected by a plurality of connecting plates. The outer ring body can be coaxially clamped and fixed by a pipe clamp.

[0015] The above-mentioned technical solution of this utility model has the following beneficial effects: Because the axes of the connecting rod, the connector, the positioning element, and the clamping element coincide, when the connecting rod is inserted into the pin hole of the boom, and the positioning element and clamping element are respectively engaged at both ends of the pin hole, with the positioning element and clamping element aligning the axis of the connecting rod with the axis of the pin hole, the axis of the connector can also coincide with the axis of the pin hole. After the connecting rod is fixed to the pin hole by the positioning element and clamping element, the connector will be located at the preset assembly position of the pipe clamp. Then, the pipe clamp is coaxially clamped and fixed to the connector, and the pipe clamp will also be located at its preset assembly position, with the axis of the pipe clamp aligning with the axis of the connector. Therefore, the axis of the pipe clamp will also coincide with the axis of the pin hole, achieving alignment between the pipe clamp and the pin hole. Finally, the pipe clamp is connected to the bracket, completing the alignment and assembly of the pipe clamp. Therefore, by using the alignment and assembly auxiliary device of this utility model, the pipe clamp and the pin hole can be aligned during the assembly process, improving the alignment effect between the pipe clamp and the pin hole, and avoiding possible failures such as support cracking and failure, abnormal wear and tear of pipe clamps, or pipe bursting during the subsequent operation of concrete pump truck. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection between the delivery pipe and the boom; Figure 2 This is a schematic diagram showing the distribution of the pin holes; Figure 3 This is a schematic diagram of centering using a centering assembly auxiliary device in one embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of the centering assembly auxiliary device in one embodiment of the present invention; Figure 5 This is a cross-sectional schematic diagram of the positioning component in one embodiment of the present invention; Figure 6 This is a rear view schematic diagram of the positioning component in one embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the clamping member in one embodiment of this utility model; Figure 8 This is a rear view schematic diagram of the clamping member in one embodiment of the present invention; Figure 9 This is a cross-sectional schematic diagram of the connecting rod in one embodiment of the present invention; Figure 10This is a cross-sectional schematic diagram of the connector in one embodiment of the present invention; Figure 11 This is a side view of the connector in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures 1. Connecting rod; 11. Outer rod body; 12. Inner liner tube; 13. Limiting ring; 14. Limiting bolt; 2. Connector; 21. Inner ring; 22. Outer ring; 23. Connecting plate; 24. Positioning bolt; 3. Positioning component; 31. Positioning cone; 32. Positioning tube; 33. First reinforcing rib; 4. Clamping component; 41. Clamping cone; 42. Clamping tube; 43. Second reinforcing rib; 5. Locking sleeve; 6. Conveying pipe; 61. First bend; 62. Second bend; 63. Pipe clamp; 7. Boom; 71. First boom section; 72. Second boom section; 73. Pin; 74. Pin hole; 75. Bracket. Detailed Implementation

[0018] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are intended only to explain this utility model and not to limit it. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this utility model by illustrating examples of it.

[0019] like Figures 3 to 4 As shown, this utility model provides an alignment and assembly auxiliary device, which includes a connecting rod 1 with coincident axes, a connecting head 2, a positioning element 3, and a clamping element 4. The connecting rod 1 is used to pass through the pin hole 74 of the boom 7. The connecting head 2 is sleeved on the connecting rod 1 and is used to be coaxially clamped and fixed by the pipe clamp 63 at a preset assembly position. The positioning element 3 is located between the connecting head 2 and the clamping element 4, and is sleeved on the connecting rod 1. The clamping element 4 is detachably sleeved on the connecting rod 1. The positioning element 3 and the clamping element 4 can be respectively engaged at both ends of the pin hole 74, and the positioning element 3 and the clamping element 4 can make the axis of the connecting rod 1 coincide with the axis of the pin hole 74, so as to align the pipe clamp 63 clamped and fixed to the connecting head 2 with the pin hole 74.

[0020] Specifically, when it is necessary to assemble pipe clamp 63 and align pipe clamp 63, the installation step, alignment step and disassembly step are performed in sequence.

[0021] First, perform the installation steps. Remove the clamping component 4 from the connecting rod 1; then insert the connecting rod 1 into the pin hole 74, with the connector 2 positioned on the side where the bracket 75 is located. Next, reinstall the clamping component 4 onto the connecting rod 1, at which point the positioning component 3 and the clamping component 4 are located on opposite sides of the boom 7. Then, engage the positioning component 3 and the clamping component 4 at both ends of the pin hole 74, fixing the connecting rod 1 in the pin hole 74, while the connector 2 is positioned at the preset assembly position of the pipe clamp 63. The positioning component 3 and the clamping component 4 also ensure that the axis of the connecting rod 1 coincides with the axis of the pin hole 74, achieving alignment between the connecting rod 1 and the pin hole 74. Since the connector 2 is fitted onto the connecting rod 1, and the axis of the connector 2 coincides with the axis of the connecting rod 1, when the connecting rod 1 and the pin hole 74 are aligned, the connector 2 and the pin hole 74 will also be aligned.

[0022] Then, the alignment step is performed. When the positioning element 3 and the clamping element 4 are respectively engaged at both ends of the pin hole 74, the connecting rod 1 is fixed in the pin hole 74, and the connecting head 2 is located at the preset assembly position of the pipe clamp 63. At this time, the pipe clamp 63 can be coaxially clamped and fixed onto the connecting head 2, and the axis of the pipe clamp 63 will coincide with the axis of the connecting head 2. Since the axis of the pin hole 74 and the axis of the connecting head 2 coincide with the axis of the connecting rod 1, the axis of the pipe clamp 63 can also coincide with the axis of the pin hole 74. At this time, the pipe clamp 63 and the pin hole 74 are aligned. Then, the pipe clamp 63 is connected to the bracket 75 to complete the assembly of the pipe clamp 63. After the pipe clamp 63 is installed and fixed on the bracket 75, the pipe clamp 63 is assembled and aligned.

[0023] Finally, proceed with the disassembly step. First, loosen the pipe clamp 63, then remove the clamping piece 4, and finally remove the connecting rod 1 from the pin hole 74. At this point, the boom 7 with the pipe clamp 63 installed can proceed to the next assembly stage.

[0024] In this embodiment, since the axes of the connecting rod 1, the connector 2, the positioning element 3, and the clamping element 4 coincide, when the connecting rod 1 is inserted into the pin hole 74 of the boom 7, and the positioning element 3 and the clamping element 4 are respectively engaged at both ends of the pin hole 74, and the positioning element 3 and the clamping element 4 make the axis of the connecting rod 1 coincide with the axis of the pin hole 74, the axis of the connector 2 can also coincide with the axis of the pin hole 74. Furthermore, after the connecting rod 1 is fixed to the pin hole 74 by the positioning element 3 and the clamping element 4, the connector 2 will be located at the preset assembly position of the pipe clamp 63. Then, pipe clamp 63 is coaxially clamped and fixed onto connector 2. Pipe clamp 63 will also be located at its preset assembly position, and the axis of pipe clamp 63 will coincide with the axis of connector 2. Therefore, the axis of pipe clamp 63 will also coincide with the axis of pin hole 74, achieving alignment between pipe clamp 63 and pin hole 74. Finally, pipe clamp 63 is connected to bracket 75, completing the alignment and assembly of pipe clamp 63. Therefore, the alignment and assembly auxiliary device of this invention enables pipe clamp 63 and pin hole 74 to be aligned during assembly, improving the alignment effect between pipe clamp 63 and pin hole 74, and preventing potential malfunctions such as bracket 75 cracking and failure, abnormal wear and tear of pipe clamp 63, or pipe bursting of delivery pipe 6 during subsequent operation of the concrete pump truck.

[0025] In some embodiments, the positioning member 3 can be fixedly connected to the connecting rod 1, and there is a preset distance between the connector 2 and the positioning member 3. After the connecting rod 1 is fixed in the pin hole 74, the connector 2 can be located at a preset assembly position of the pipe clamp 63, so the pipe clamp 63 can coaxially clamp and fix the connector 2 at its preset assembly position.

[0026] In some embodiments, the positioning element 3 can be moved and positioned relative to the connecting rod 1. By adjusting the position of the positioning element 3, a preset distance is achieved between the connector 2 and the positioning element 3. After the connecting rod 1 is fixed in the pin hole 74, the connector 2 can be located at a preset assembly position of the pipe clamp 63, so the pipe clamp 63 can coaxially clamp and fix the connector 2 at its preset assembly position. Furthermore, this arrangement allows for adjustment of the distance between the connector 2 and the positioning element 3, facilitating compatibility with more models of concrete pump trucks. Additionally, the connection method between the positioning element 3 and the connecting rod 1 is not limited. For example, the positioning element 3 and the connecting rod 1 can be connected by a thread. Another example is that the positioning element 3 is equipped with a radially extending bolt; by rotating the bolt, when the bolt is pressed against the connecting rod 1, the positioning element 3 can be fixed to the connecting rod 1; by rotating the bolt in the opposite direction, when the bolt is disengaged from the connecting rod 1, the positioning element 3 can move relative to the connecting rod 1.

[0027] In some embodiments, the connector 2, the positioning member 3, and the clamping member 4 are respectively sleeved on the connecting rod 1, and the three are threadedly connected to the connecting rod 1, so as to adjust the relative positions of the positioning member 3, the clamping member 4, and the connector 2.

[0028] like Figures 4 to 6 As shown, in some embodiments of this utility model, the positioning member 3 includes a conical positioning cone 31, which is coaxially sleeved on the connecting rod 1. The side of the positioning cone 31 facing the clamping member 4 can be engaged with the end of the pin hole 74 facing the tube clamp 63. And along the direction from the clamping member 4 to the positioning member 3, the outer diameter of the positioning cone 31 gradually increases.

[0029] Specifically, the outer diameter of the first end of the positioning cone 31 is the smallest, and the outer diameter of the last end of the positioning cone 31 is the largest. Furthermore, the outer diameter of the first end of the positioning cone 31 is smaller than the diameter of the pin hole 74, while the outer diameter of the last end of the positioning cone 31 is larger than the diameter of the pin hole 74. The axis of the positioning cone 31 coincides with the axis of the connecting rod 1. After the connecting rod 1 passes through the pin hole 74, the first end of the positioning cone 31 is inserted into the end of the pin hole 74 facing the pipe clamp 63, and the conical surface of the positioning cone 31 presses against this end of the pin hole 74. At this time, the side of the positioning cone 31 facing the clamping member 4 is engaged with this end of the pin hole 74.

[0030] In some embodiments, the positioning cone 31 can be fixedly connected to the connecting rod 1, and there is a preset distance between the connector 2 and the positioning cone 31. After the connecting rod 1 is fixed in the pin hole 74, the connector 2 can be located at a preset assembly position of the pipe clamp 63.

[0031] In some embodiments, the positioning cone 31 can be moved and positioned relative to the connecting rod 1. A preset distance is achieved between the connecting head 2 and the positioning cone 31 by adjusting the position of the positioning cone 31. After the connecting rod 1 is fixed in the pin hole 74, the connecting head 2 can be positioned at a preset assembly position of the pipe clamp 63. This configuration also allows for adjustment of the distance between the connecting head 2 and the positioning cone 31, facilitating compatibility with more models of concrete pump trucks. Furthermore, the connection method between the positioning cone 31 and the connecting rod 1 is not limited. For example, the positioning cone 31 and the connecting rod 1 can be connected by a thread. Alternatively, the positioning cone 31 can be fitted with a radially extending bolt; rotating the bolt, when the bolt is pressed against the connecting rod 1, the positioning cone 31 can be fixed to the connecting rod 1; rotating the bolt in the opposite direction, when the bolt is disengaged from the connecting rod 1, the positioning cone 31 can move relative to the connecting rod 1.

[0032] like Figures 4 to 6As shown, in some embodiments of this utility model, the positioning component 3 includes a positioning tube 32, which is fixedly connected to the side of the positioning cone 31 facing the connector 2. The positioning tube 32 is coaxially sleeved on the connecting rod 1. The positioning tube 32 is threadedly connected to the connecting rod 1 so that the positioning tube 32 can drive the positioning cone 31 to move and be positioned.

[0033] Specifically, the positioning tube 32 is a tubular fitting, such as a round tube. The axis of the positioning tube 32 coincides with the axis of the connecting rod 1. The inner wall of the positioning tube 32 is provided with an internal thread, and the outer side of the connecting rod 1 is provided with an external thread, forming a threaded engagement between the internal thread of the positioning tube 32 and the external thread of the connecting rod 1. When the positioning tube 32 is rotated, it can drive the positioning cone 31 to move along the axial direction of the connecting rod 1. When the positioning tube 32 is not rotated, the positioning tube 32 and the positioning cone 31 can be positioned relative to the connecting rod 1 through the threaded engagement between the positioning tube 32 and the connecting rod 1. Furthermore, in this embodiment, the positioning cone 31 may not be provided with an internal thread; the positioning cone 31 only needs to form a sliding engagement with the connecting rod 1.

[0034] In some embodiments, the overall length of the internal thread of the positioning tube 32 is less than the length of the positioning tube 32, for example, the overall length of the internal thread is half the length of the positioning tube 32. By appropriately reducing the length of the internal thread, the friction between the positioning tube 32 and the connecting rod 1 is reduced, and the difficulty of rotating the positioning tube 32 is reduced.

[0035] like Figures 4 to 5 As shown, in some embodiments of this utility model, the length of the positioning tube 32 is greater than the length of the positioning cone 31.

[0036] Specifically, a portion of the positioning tube 32 extends from the positioning cone 31, making it easier for the operator to grasp the positioning tube 32 and rotate it.

[0037] like Figure 6 As shown, in some embodiments of this utility model, the positioning cone 31 and the positioning tube 32 are also connected by a plurality of first reinforcing ribs 33.

[0038] Specifically, the side of the positioning cone 31 facing away from the clamping member 4 is fixedly connected to the outer periphery of the positioning tube 32 via a first reinforcing rib 33 to enhance the connection stability between the positioning cone 31 and the positioning tube 32. Preferably, all the first reinforcing ribs 33 are located within the positioning cone 31. Preferably, all the first reinforcing ribs 33 are spaced apart around the axis of the positioning tube 32.

[0039] It should be noted that the positioning element 3 can also be any other structural form that can achieve the above-mentioned technical effects, and this utility model does not limit it. For example, the positioning element 3 can be a frustum-shaped component, with the size of the first end of the positioning element 3 being smaller than the diameter of the pin hole 74, and the size of the last end of the positioning element 3 being larger than the diameter of the pin hole 74, so that the positioning element 3 can be engaged with the end of the pin hole 74.

[0040] like Figure 4 , Figure 7 and Figure 8 As shown, in some embodiments of this utility model, the clamping member 4 includes a conical clamping cone 41, which is detachably coaxially sleeved on the connecting rod 1. The side of the clamping cone 41 facing the positioning member 3 can be engaged with the end of the pin hole 74 facing away from the tube clamp 63. And along the direction from the positioning member 3 to the clamping member 4, the outer diameter of the clamping cone 41 gradually increases.

[0041] Specifically, the outer diameter of the first end of the clamping cone 41 is the smallest, and the outer diameter of the last end of the clamping cone 41 is the largest. Furthermore, the outer diameter of the first end of the clamping cone 41 is smaller than the diameter of the pin hole 74, while the outer diameter of the last end of the clamping cone 41 is larger than the diameter of the pin hole 74. The axis of the clamping cone 41 coincides with the axis of the connecting rod 1. When the pipe clamp 63 needs to be installed, the clamping cone 41 is removed from the connecting rod 1. After the connecting rod 1 is inserted into the pin hole 74, the clamping cone 41 is reinstalled onto the connecting rod 1. Then, the first end of the clamping cone 41 is inserted into the end of the pin hole 74 facing away from the pipe clamp 63, and the conical surface of the clamping cone 41 presses against this end of the pin hole 74. At this time, the side of the clamping cone 41 facing the positioning element 3 is engaged with this end of the pin hole 74.

[0042] In this invention, both the clamping cone 41 and the positioning cone 31 have conical surfaces. After the connecting rod 1 is installed into the pin hole 74, the alignment of the clamping cone 41 and the positioning cone 31 ensures that the axis of the connecting rod 1 coincides with the axis of the pin hole 74, thus guaranteeing alignment between the connecting rod 1 and the pin hole 74. Since the axis of the connector 2 coincides with the axis of the connecting rod 1, the axis of the connector 2 also coincides with the axis of the pin hole 74. When the pipe clamp 63 is coaxially tightened and fixed onto the connector 2, the axis of the pipe clamp 63 coincides with the axis of the connector 2, and therefore, the axis of the pipe clamp 63 also coincides with the axis of the pin hole 74, achieving alignment between the pipe clamp 63 and the pin hole 74.

[0043] In some embodiments, the clamping cone 41 and the connecting rod 1 are threaded together so that the clamping cone 41 can be detached from the connecting rod 1, moved relative to the connecting rod 1, and positioned relative to the connecting rod 1.

[0044] like Figures 7 to 8As shown, in some embodiments of this utility model, the clamping member 4 further includes a clamping tube 42, which is slidably coaxially sleeved on the connecting rod 1 and is detachable. The clamping tube 42 is fixedly connected to the side of the clamping cone 41 facing away from the connecting head 2.

[0045] Specifically, the clamping tube 42 is a pipe fitting, for example, it can be a round tube. The axis of the clamping tube 42 coincides with the axis of the connecting rod 1. The clamping tube 42 is fixedly connected to the clamping cone 41, so after the clamping tube 42 is removed from the connecting rod 1, the clamping cone 41 will also be removed from the connecting rod 1 along with the clamping tube 42. Moreover, by pushing and pulling the clamping tube 42 on the connecting rod 1, the clamping cone 41 can slide on the connecting rod 1.

[0046] In some embodiments, the clamping tube 42 and the connecting rod 1 are threaded together so that the clamping cone 41 can be detached from the connecting rod 1, moved relative to the connecting rod 1, and positioned relative to the connecting rod 1.

[0047] In some embodiments, the inner wall of the clamping tube 42 is not provided with internal threads, but the clamping tube 42 is equipped with radially extending bolts, which allow the clamping tube 42 to move or be positioned relative to the connecting rod 1 by unscrewing or screwing in the bolts.

[0048] like Figure 8 As shown, in some embodiments of this utility model, the clamping cone 41 and the clamping tube 42 are also connected by a plurality of second reinforcing ribs 43.

[0049] Specifically, the side of the clamping cone 41 facing away from the positioning member 3 is fixedly connected to the outer periphery of the clamping tube 42 via a second reinforcing rib 43 to enhance the connection stability between the clamping cone 41 and the clamping tube 42. Preferably, all the second reinforcing ribs 43 are located within the clamping cone 41. Preferably, all the second reinforcing ribs 43 are spaced apart around the axis of the clamping tube 42.

[0050] like Figure 4 As shown, in some embodiments of this utility model, the centering assembly auxiliary device further includes a locking sleeve 5, a pressing member 4 is disposed between the positioning member 3 and the locking sleeve 5, the locking sleeve 5 is coaxially sleeved on the connecting rod 1, the locking sleeve 5 is threadedly connected to the connecting rod 1, and the locking sleeve 5 can move along the connecting rod 1 and is detachable.

[0051] Specifically, the locking sleeve 5 is a pipe fitting, such as a round pipe. The axis of the locking sleeve 5 coincides with the axis of the connecting rod 1. The inner side of the locking sleeve 5 is provided with an internal thread, and the outer side of the connecting rod 1 is provided with an external thread. The internal thread of the locking sleeve 5 and the external thread of the connecting rod 1 form a threaded engagement. When it is necessary to remove the clamping member 4, rotate the locking sleeve 5 to disengage it from the connecting rod 1, at which point the clamping member 4 can be removed from the connecting rod 1. When it is necessary to fix the connecting rod 1 in the pin hole 74, press the clamping member 4 (e.g., the conical surface of the clamping cone 41) against one end of the pin hole 74 facing away from the pipe clamp 63, and then rotate the locking sleeve 5 to press the clamping member 4 (e.g., press the clamping tube 42). At this time, the clamping member 4 (e.g., the clamping cone 41) can be engaged with one end of the pin hole 74 facing away from the pipe clamp 63. In this embodiment, the clamping member 4 (e.g., clamping tube 42 and clamping cone 41) may not have internal threads, and a sliding fit can be formed between the clamping member 4 (e.g., clamping tube 42 and clamping cone 41) and the connecting rod 1.

[0052] It should be noted that the clamping member 4 can also be any other structural form that can achieve the above-mentioned technical effects, and this utility model does not limit it. For example, the clamping member 4 can be a truncated pyramidal component, with the size of the first end of the clamping member 4 being smaller than the diameter of the pin hole 74, and the size of the last end of the clamping member 4 being larger than the diameter of the pin hole 74, so that the clamping member 4 can be engaged with the end of the pin hole 74.

[0053] like Figure 4 and Figure 9 As shown, in some embodiments of this utility model, the connecting rod 1 includes a straight-extending outer rod body 11, and the connecting head 2, positioning member 3 and clamping member 4 are coaxially sleeved on the outer rod body 11. The outer rod body 11 has an installation channel extending along its axial direction inside, and an inner liner tube 12 is installed in the installation channel.

[0054] Specifically, an axially extending installation channel is provided inside the outer rod 11, which reduces the overall weight of the connecting rod 1 and facilitates operation. However, if the overall length of the outer rod 11 is long, it is prone to bending, which may cause the axes of the connector 2, the positioning element 3, and the clamping element 4 to not coincide with the axis of the outer rod 11. However, by providing an inner liner 12 in the installation channel, the structural strength of the outer rod 11 is enhanced, preventing bending and ensuring that the axes of the connector 2, the positioning element 3, the clamping element 4, and the outer rod 11 coincide. Furthermore, since the inner liner 12 is a tubular fitting, it does not excessively increase the overall weight of the connecting rod 1. Of course, the axes of the installation channel, the inner liner 12, and the outer rod 11 also coincide.

[0055] In some embodiments, the two ends of the inner liner tube 12 are aligned with the two ends of the outer rod 11, respectively.

[0056] In some embodiments, the outer rod body 11 is provided with external threads, and the external threads are distributed at least within the range of the locking sleeve 5, the positioning member 3 and the clamping member 4. The locking sleeve 5 and the positioning tube 32 are respectively threaded to the outer rod body 11.

[0057] In some embodiments, the connecting rod 1 may also be a straight solid rod.

[0058] like Figure 4 and Figure 9 As shown, in some embodiments of this utility model, a limiting ring 13 is provided on the outer periphery of the connecting rod 1. The limiting ring 13 is distributed around the axis of the connecting rod 1 and is disposed between the connecting head 2 and the positioning member 3. The limiting ring 13 can restrict the connecting head 2 from moving toward the positioning member 3.

[0059] Specifically, during the process of installing the connector 2 onto the connecting rod 1, the limiting ring 13 can stop the connector 2, preventing it from moving toward the positioning member 3 and stopping it at a preset position.

[0060] like Figure 4 and Figure 9 As shown, in some embodiments of this utility model, the connecting rod 1 is equipped with a limiting bolt 14, and the connector 2 is disposed between the limiting bolt 14 and the positioning member 3. The limiting bolt 14 extends radially along the connecting rod 1 and can restrict the connector 2 from disengaging from the connecting rod 1.

[0061] Specifically, during the process of installing the connecting rod 1 into the pin hole 74, the connecting rod 1 needs to be moved. The limiting bolt 14 can prevent the connector 2 from disengaging from the connecting rod 1, thereby preventing danger. like Figures 10 to 11 As shown, in some embodiments of this utility model, the connector 2 includes an inner ring body 21 and an outer ring body 22. The inner ring body 21 is sleeved on the connecting rod 1 and detachably connected to the connecting rod 1. The outer ring body 22 surrounds the inner ring body 21. The inner ring body 21 and the outer ring body 22 are connected by multiple connecting plates 23. The outer ring body 22 can be coaxially clamped and fixed by the pipe clamp 63.

[0062] Specifically, both the inner ring 21 and the outer ring 22 are annular, and the axes of the inner ring 21 and the outer ring 22 coincide with the axis of the connecting rod 1. By configuring the connector 2 with the above structure, the connector 2 becomes lighter and easier to install onto the connecting rod 1.

[0063] In some embodiments, the inner ring 21 is sleeved on the outer rod 11.

[0064] In some embodiments, a radially extending positioning bolt 24 is mounted on the inner ring 21. By rotating the positioning bolt 24 in the forward direction, the positioning bolt 24 is tightened, and the bottom end of the positioning bolt 24 can press against the connecting rod 1, thereby positioning the inner ring 21 relative to the connecting rod 1. By rotating the positioning bolt 24 in the reverse direction, the positioning bolt 24 is loosened, and the bottom end of the positioning bolt 24 can disengage from the connecting rod 1, allowing the inner ring 21 to move relative to the connecting rod 1. This facilitates the removal of the connector 2 from the connecting rod 1 or the adjustment of the position of the connector 2.

[0065] In some embodiments, the inner ring 21 is threadedly connected to the connecting rod 1 to facilitate the disassembly and assembly of the connector 2 or the adjustment of the position of the connector 2.

[0066] It should be noted that the positioning cone 31, positioning tube 32, clamping cone 41, clamping tube 42 and inner ring 21 are all set to their respective preset dimensions, so that the above components can achieve high-precision fit with the connecting rod 1, avoid the formation of large gaps between these components and the connecting rod 1, and thus keep the axis of these components coincide with the axis of the connecting rod 1.

[0067] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A centering assembly auxiliary device, characterized in that, It includes a connecting rod (1) with the axes of mutual coincidence, a connector (2), a positioning component (3) and a clamping component (4); The connecting rod (1) is used to pass through the pin hole (74) of the boom (7), the connector (2) is sleeved on the connecting rod (1) and is used to be coaxially clamped and fixed by the pipe clamp (63) at the preset assembly position of the pipe clamp (63); the positioning member (3) is located between the connector (2) and the clamping member (4), the positioning member (3) is sleeved on the connecting rod (1), and the clamping member (4) is detachably sleeved on the connecting rod (1). The positioning member (3) and the clamping member (4) can be respectively engaged at both ends of the pin hole (74), and the positioning member (3) and the clamping member (4) can make the axis of the connecting rod (1) coincide with the axis of the pin hole (74), so as to center the pipe clamp (63) clamped and fixed to the connector (2) with the pin hole (74).

2. The centering and assembly auxiliary device according to claim 1, characterized in that, The positioning element (3) includes a conical positioning cone (31) which is coaxially sleeved on the connecting rod (1). The side of the positioning cone (31) facing the clamping element (4) can be engaged with the end of the pin hole (74) facing the tube clamp (63). The outer diameter of the positioning cone (31) gradually increases along the direction from the clamping element (4) to the positioning element (3).

3. The centering and assembly auxiliary device according to claim 2, characterized in that, The positioning component (3) includes a positioning tube (32), which is fixedly connected to the side of the positioning cone (31) facing the connector (2). The positioning tube (32) is coaxially sleeved on the connecting rod (1). The positioning tube (32) is threadedly connected to the connecting rod (1) so that the positioning tube (32) can drive the positioning cone (31) to move and be positioned.

4. The centering assembly auxiliary device according to claim 3, characterized in that, The length of the positioning tube (32) is greater than the length of the positioning cone (31); And / or, the positioning cone (31) and the positioning tube (32) are also connected by a plurality of first reinforcing ribs (33).

5. The centering and assembly auxiliary device according to claim 1, characterized in that, The clamping member (4) includes a conical clamping cone (41), which is detachably coaxially sleeved on the connecting rod (1). The side of the clamping cone (41) facing the positioning member (3) can be engaged with the end of the pin hole (74) facing away from the tube clamp (63). The outer diameter of the clamping cone (41) gradually increases along the direction from the positioning member (3) to the clamping member (4).

6. The centering and assembly auxiliary device according to claim 5, characterized in that, The clamping component (4) further includes a clamping tube (42), which is slidably coaxially sleeved on the connecting rod (1) and is detachable. The clamping tube (42) is fixedly connected to the side of the clamping cone (41) facing away from the connecting head (2).

7. The centering and assembly auxiliary device according to claim 6, characterized in that, The clamping cone (41) and the clamping tube (42) are also connected by a plurality of second reinforcing ribs (43); And / or, the centering assembly auxiliary device further includes a locking sleeve (5), the clamping member (4) is disposed between the positioning member (3) and the locking sleeve (5), the locking sleeve (5) is coaxially sleeved on the connecting rod (1), the locking sleeve (5) is threadedly connected to the connecting rod (1), and the locking sleeve (5) is movable along the connecting rod (1) and is detachable.

8. The centering assembly auxiliary device according to claim 1, characterized in that, The connecting rod (1) includes a straight-extending outer rod body (11), the connecting head (2), the positioning member (3) and the clamping member (4) are coaxially sleeved on the outer rod body (11), and the outer rod body (11) has an installation channel extending along its axial direction inside, and an inner liner tube (12) is installed in the installation channel.

9. The centering assembly auxiliary device according to claim 1, characterized in that, The outer periphery of the connecting rod (1) is provided with a limiting ring (13). The limiting ring (13) is distributed around the axis of the connecting rod (1). The limiting ring (13) is disposed between the connecting head (2) and the positioning member (3). The limiting ring (13) can restrict the connecting head (2) from moving toward the positioning member (3). And / or, the connecting rod (1) is fitted with a limiting bolt (14), the connecting head (2) is disposed between the limiting bolt (14) and the positioning member (3), the limiting bolt (14) extends radially along the connecting rod (1) and is capable of restricting the connecting head (2) from disengaging from the connecting rod (1).

10. The centering assembly auxiliary device according to claim 1, characterized in that, The connector (2) includes an inner ring (21) and an outer ring (22). The inner ring (21) is sleeved on the connecting rod (1) and detachably connected to the connecting rod (1). The outer ring (22) surrounds the inner ring (21). The inner ring (21) and the outer ring (22) are connected by multiple connecting plates (23). The outer ring (22) can be coaxially clamped and fixed by the pipe clamp (63).

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