Quick-release support arm base and joint

By using a quick-release outrigger base and connector design, and a combination of sleeve and positioning wheel, the problem of inconvenient disassembly and installation of the outrigger in medical equipment is solved, enabling convenient outrigger disassembly and installation operations.

CN224580022UActive Publication Date: 2026-07-31ANYANG XIANGYU MEDICAL EQUIP
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANYANG XIANGYU MEDICAL EQUIP
Filing Date
2025-07-30
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The outriggers in existing medical devices are inconvenient to disassemble and install during packaging, transportation, or maintenance, requiring the removal of multiple fasteners.

Method used

The system features a quick-release arm base and connector design. Through a combination of sleeve and positioning wheel, the arm can be easily connected and disassembled with the treatment head by locking or unlocking with an indexing pin.

Benefits of technology

The outrigger is easy to disassemble and install during packaging, transportation, or maintenance, and its operation is simple and convenient, improving the assembly efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224580022U_ABST
    Figure CN224580022U_ABST
Patent Text Reader

Abstract

This utility model discloses a quick-release support arm base and connector, relating to the field of medical auxiliary device technology. It includes: a support arm base; a support arm comprising a first arm vertically disposed on the support arm base and a second arm hinged to one side of the top of the first arm; and a support arm connector comprising a fixing head, a positioning plate, a positioning wheel, and a sleeve connected to the end of the second arm. The first end of the positioning plate is connected to the fixing head, the second end of the positioning plate is inserted into the first end of the sleeve, the positioning wheel is nested and engaged within the second end of the sleeve, a first mounting hole is provided on the upper part of one side of the sleeve, a mating hole is provided on the second end of the positioning plate, a first indexing pin passes through the aligned first mounting hole and mating hole, and a treatment head is inserted into the sleeve and connected to the positioning wheel. This device allows for easy disassembly and installation of the support arm in medical equipment during packaging, transportation, or maintenance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and more specifically, to a quick-release support arm base and connector. Background Technology

[0002] In existing technologies, support arms are frequently used in medical devices, serving to connect the medical equipment and the treatment head. However, most support arms in current medical devices are fixed to the equipment via threaded connections, requiring the removal of multiple fasteners for replacement, which is inconvenient during packaging, transportation, or maintenance.

[0003] In summary, how to make the arms in medical devices easy to disassemble and install on the equipment during packaging, transportation, or maintenance is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a quick-release support arm base and connector, which makes it easy to disassemble and install the support arm in medical equipment during packaging, transportation or maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-release support arm base and connector, comprising:

[0007] Support arm base;

[0008] The arm includes a first arm vertically disposed on the support arm base and a second arm hinged to one side of the top of the first arm.

[0009] The outrigger connector includes a fixing head, a positioning plate, a positioning wheel, and a sleeve connected to the end of the second arm. The first end of the positioning plate is connected to the fixing head, and the second end of the positioning plate is inserted into the first end of the sleeve. The positioning wheel is nested and locked inside the second end of the sleeve. A first mounting hole is provided on the upper part of one side of the sleeve, and a mating hole is provided on the second end of the positioning plate. A first indexing pin passes through the aligned first mounting hole and the mating hole, and the treatment head is inserted into the sleeve and connected to the positioning wheel.

[0010] In one embodiment, the support arm base includes a base, a base connector connected to the first arm, and a handle screw. The upper part of the base is provided with a slot for accommodating the base connector, and the base connector is rotatably mounted on the base. A screw hole is provided on one side of the slot, and the handle screw is threadedly connected to the screw hole to adjust the diameter of the slot.

[0011] In one embodiment, the bottom of the base is provided with a limiting groove, the limiting groove is located at the bottom of the slot, and the bottom of the base connector is provided with a limiting boss, the limiting boss and the limiting groove are engaged and fixed.

[0012] In one embodiment, the base has an annular groove in the middle, the annular groove is connected to the slot, and the base connector has a stepped surface structure in the middle, the stepped surface structure and the annular groove are engaged and fixed.

[0013] In one embodiment, the limiting groove includes a fan-shaped groove, and the limiting boss includes a fan-shaped boss.

[0014] In one embodiment, the first end of the fixing head is provided with a connecting hole along the axial direction, and the connecting hole is threadedly connected to the second arm.

[0015] In one embodiment, the bottom of the second end of the fixing head is provided with oppositely distributed baffles, and a channel is provided between the two baffles. The first end of the positioning plate is inserted into the channel. The baffles are provided with fixing holes, and the first end of the positioning plate is provided with assembly holes. The fixing member passes through the aligned fixing holes and assembly holes.

[0016] In one embodiment, the baffle is provided with a positioning hole, and the first end of the positioning plate is provided with three matching adjustment holes. The second indexing pin passes through the positioning hole and one of the adjustment holes so that the fixing head is in a horizontal, vertical or inclined state relative to the positioning plate.

[0017] In one embodiment, the center of the positioning wheel is provided with a threaded hole along the axial direction for threaded connection with the treatment head, the outer side wall of the positioning wheel is provided with an assembly step surface, and the inner side wall of the sleeve is provided with an assembly groove for engaging with the assembly step surface.

[0018] In one embodiment, a second mounting hole is provided on the lower part of one side of the sleeve, and a plurality of positioning grooves are uniformly provided on the first end of the positioning wheel along the circumference, and a third indexing pin passes through the second mounting hole and is engaged in the positioning groove.

[0019] When using the quick-release support arm base and connector provided by this utility model, firstly, the first arm is vertically mounted on the support arm base, and the second arm is hinged to one side of the top of the first arm. Then, the end of the second arm is connected to the first end of the fixing head, and the second end of the fixing head is connected to the first end of the positioning plate. The second end of the positioning plate is inserted into the first end of the sleeve, and the positioning wheel is nested and locked in the second end of the sleeve. Subsequently, the first indexing pin is passed through the first mounting hole on the upper part of one side of the aligned sleeve and the mating hole at the second end of the positioning plate to lock the sleeve and the positioning plate with the first indexing pin. Finally, the treatment head is inserted into the sleeve and connected to the positioning wheel.

[0020] Since the sleeve connects the positioning plate and the positioning wheel, the first indexing pin locks the sleeve and the positioning wheel inside, and the positioning wheel is nested and locked inside the sleeve. The positioning wheel is also connected to the treatment head, thus achieving a complete connection between the support arm and the treatment head. This connection operation is simple and convenient. Furthermore, when the treatment head needs to be disassembled, the operator can pull out the first indexing pin to unlock the sleeve and the positioning plate, making it easy for the operator to disassemble the various components of the support arm connector and quickly remove the treatment head and support arm from the support arm connector. In other words, this device facilitates the disassembly and installation of the support arm in medical equipment during packaging, transportation, or maintenance.

[0021] In summary, the quick-release support arm base and connector provided by this utility model make it easy to disassemble and install the support arm in medical equipment during packaging, transportation or maintenance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the quick-release support arm base and connector provided by this utility model.

[0024] Figure 2 This is a structural schematic diagram of the support arm base;

[0025] Figure 3 This is the front view of the support arm base;

[0026] Figure 4 for Figure 3 AA cross-section view;

[0027] Figure 5 This is a top view of the support arm base;

[0028] Figure 6 This is a schematic diagram of the base structure;

[0029] Figure 7 This is the front view of the base;

[0030] Figure 8 for Figure 7 BB cross-section;

[0031] Figure 9 This is a top view of the base;

[0032] Figure 10 This is a schematic diagram of the base connector structure;

[0033] Figure 11 This is the front view of the base connector;

[0034] Figure 12 for Figure 11 CC cross-section;

[0035] Figure 13 Exploded view of the outrigger joint;

[0036] Figure 14 This is a schematic diagram of the outrigger connector.

[0037] Figure 15 A schematic diagram showing the structure in which the fixed head is horizontal, vertical, or inclined relative to the positioning plate;

[0038] Figure 16 This is the front view of the outrigger connector;

[0039] Figure 17 for Figure 16 DD cross-section;

[0040] Figure 18 This is a schematic diagram of the fixed head structure;

[0041] Figure 19 This is the front view of the fixed head;

[0042] Figure 20 for Figure 19 EE cross-section;

[0043] Figure 21 This is a structural schematic diagram of the positioning plate;

[0044] Figure 22 This is the front view of the positioning plate;

[0045] Figure 23 This is a schematic diagram of the positioning wheel structure;

[0046] Figure 24 This is the front view of the positioning wheel;

[0047] Figure 25 for Figure 24 FF cross-sectional view;

[0048] Figure 26 This is a schematic diagram of the sleeve structure;

[0049] Figure 27 This is the front view of the sleeve;

[0050] Figure 28 for Figure 27 GG cross-section diagram.

[0051] Figures 1-28 middle:

[0052] 1 is the support arm base, 101 is the base, 1011 is the limiting groove, 1012 is the slot, 1013 is the annular groove, 102 is the base connector, 1021 is the limiting boss, 1022 is the mounting through hole, 1023 is the stepped surface structure, 103 is the handle screw, 2 is the support arm, 3 is the support arm connector, 301 is the fixing head, 3011 is the connecting hole, 3012 is the fixing hole, 3013 is the positioning hole, 3014 is the channel, 302 is... Positioning plate, 3021 is adjustment hole, 3022 is assembly hole, 3023 is mating hole, 303 is positioning wheel, 3031 is positioning groove, 3032 is threaded hole, 3033 is assembly step surface, 304 is sleeve, 3041 is first mounting hole, 3042 is second mounting hole, 3043 is assembly groove, 305 is first indexing pin, 306 is fastener, 307 is second indexing pin, 308 is third indexing pin, and 4 is treatment head. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] The core of this utility model is to provide a quick-release support arm base and connector, which makes it easy to disassemble and install the support arm in medical equipment during packaging, transportation or maintenance.

[0055] Please refer to Figure 1 This specific embodiment provides a quick-release support arm base and connector, including:

[0056] Support arm base 1;

[0057] Support arm 2, which includes a first arm vertically disposed on support arm base 1 and a second arm hinged to one side of the top of the first arm;

[0058] The outrigger connector 3 includes a fixing head 301, a positioning plate 302, a positioning wheel 303, and a sleeve 304 connected to the end of the second arm. The first end of the positioning plate 302 is connected to the fixing head 301, and the second end of the positioning plate 302 is inserted into the first end of the sleeve 304. The positioning wheel 303 is nested and locked in the second end of the sleeve 304. A first mounting hole 3041 is provided on the upper part of one side of the sleeve 304. A mating hole 3023 is provided on the second end of the positioning plate 302. A first indexing pin 305 passes through the aligned first mounting hole 3041 and mating hole 3023. The treatment head 4 is inserted into the sleeve 304 and connected to the positioning wheel 303.

[0059] In practical applications, the shape, structure, size, type, and material of the support arm base 1, support arm 2, and support arm connector 3 can be determined according to the actual situation and needs.

[0060] When using the quick-release support arm base and connector provided by this utility model, firstly, the first arm is vertically mounted on the support arm base 1, and the second arm is hinged to one side of the top of the first arm. Then, the end of the second arm is connected to the first end of the fixing head 301, the second end of the fixing head 301 is connected to the first end of the positioning plate 302, the second end of the positioning plate 302 is inserted into the first end of the sleeve 304, and the positioning wheel 303 is nested and locked in the second end of the sleeve 304. Subsequently, the first indexing pin 305 is passed through the first mounting hole 3041 on the upper side of the aligned sleeve 304 and the mating hole 3023 at the second end of the positioning plate 302 to lock the sleeve 304 and the positioning plate 302 with the first indexing pin 305. Finally, the treatment head 4 is inserted into the sleeve 304 and connected to the positioning wheel 303.

[0061] Since the sleeve 304 serves to connect the positioning plate 302 and the positioning wheel 303, the first indexing pin 305 locks the sleeve 304 and the positioning wheel 303 together, and the positioning wheel 303 is nested and secured inside the sleeve 304. The positioning wheel 303 is also connected to the treatment head 4, thus achieving an overall connection between the support arm 2 and the treatment head 4. This connection operation is simple and convenient. Furthermore, when it is necessary to disassemble the treatment head 4, the operator can pull out the first indexing pin 305 to unlock the sleeve 304 and the positioning plate 302, thereby facilitating the disassembly of the various components of the support arm connector 3 and quickly removing the treatment head 4 and the support arm 2 from the support arm connector 3. In other words, this device allows the support arm 2 in medical equipment to be easily disassembled and installed during packaging, transportation, or maintenance.

[0062] In summary, the quick-release support arm base and connector provided by this utility model make it easy to disassemble and install the support arm in medical equipment during packaging, transportation or maintenance.

[0063] In one embodiment, such as Figures 2 to 5 As shown, the support arm base 1 includes a base 101, a base connector 102 connected to the first arm, and a handle screw 103. The upper part of the base 101 is provided with a slot 1012 for accommodating the base connector 102, and the base connector 102 is rotatably mounted on the base 101. A screw hole is provided on one side of the slot 1012, and the handle screw 103 is threadedly connected to the screw hole to adjust the diameter of the slot 1012.

[0064] It should be noted that an axial mounting through hole 1022 can be provided at the center of the base connector 102. The mounting through hole 1022 is used to fix the first arm, so as to realize the connection between the first arm and the base connector 102. During use, after the base connector 102 is inserted into the slot 1012 of the base 101, the operator can insert the handle screw 103 into the screw hole on one side of the slot 1012. The handle screw 103 and the screw hole are threadedly connected. By tightening the handle screw 103, the diameter of the slot 1012 can be reduced to lock the base connector 102.

[0065] In one embodiment, such as Figure 4 and Figure 10 As shown, the bottom of the base 101 is provided with a limiting groove 1011, which is located at the bottom of the slot 1012. The bottom of the base connector 102 is provided with a limiting boss 1021. The limiting boss 1021 and the limiting groove 1011 are engaged and fixed to limit the lowest position of the base connector 102.

[0066] In one embodiment, such as Figure 4 and Figure 11 As shown, the base 101 has an annular groove 1013 in the middle, which is connected to the slot 1012. The base connector 102 has a stepped surface structure 1023 in the middle, which is engaged and fixed with the annular groove 1013 to limit the highest position of the base connector 102. The stepped surface structure 1023, the annular groove 1013, the limiting boss 1021 and the limiting groove 1011 can cooperate to limit the position of the base connector 102 in the vertical direction, thereby limiting the position of the support arm 2 in the vertical direction.

[0067] In one embodiment, the limiting groove 1011 includes a fan-shaped groove, and the limiting boss 1021 includes a fan-shaped boss. Therefore, during the assembly operation of the base connector 102 and the base 101, the base connector 102 can be rotated left and right until the fan-shaped boss rotates into the fan-shaped groove and is locked in place. Of course, the shape, size, and number of the limiting groove 1011 and the limiting boss 1021 can be determined according to the actual situation and actual needs to adjust the left and right rotation range of the base connector 102. For example, if two relatively distributed fan-shaped grooves are provided at the bottom of the slot 1012, the fan-shaped boss of the base connector 102 can be locked in place by rotating to the first or second fan-shaped groove.

[0068] In one embodiment, such as Figure 20 As shown, the first end of the fixing head 301 is provided with a connecting hole 3011 along the axial direction. The connecting hole 3011 and the second arm are threaded together to be threaded together at the end of the second arm through the connecting hole 3011.

[0069] In one embodiment, such as Figure 18As shown, the bottom of the second end of the fixing head 301 is provided with opposing baffles, and a channel 3014 is provided between the two baffles. The first end of the positioning plate 302 is inserted into the channel 3014. The baffles are provided with fixing holes 3012, and the first end of the positioning plate 302 is provided with assembly holes 3022. The fastener 306 passes through the aligned fixing holes 3012 and assembly holes 3022. Therefore, when it is necessary to connect the first end of the positioning plate 302 and the second end of the fixing head 301, the operator only needs to pass the fastener 306 (such as a fixing screw) through the aligned fixing holes 3012 and assembly holes 3022 to lock it, so as to realize the connection operation of the positioning plate 302 and the fixing head 301.

[0070] In one embodiment, such as Figure 18 As shown, the baffle is provided with positioning holes 3013, such as Figure 21 As shown, the first end of the positioning plate 302 is provided with three matching adjustment holes 3021. The second indexing pin 307 passes through the positioning hole 3013 and one of the adjustment holes 3021 so that the fixing head 301 is in a horizontal, vertical or inclined state relative to the positioning plate 302.

[0071] It should be noted that the first end of the positioning plate 302 can be configured as a plate-like structure, which is configured to cooperate with the channel 3014 so that the plate-like structure can be inserted into the channel 3014. In addition to the mounting hole 3022 on the plate-like structure (to realize the rotational connection between the positioning plate 302 and the fixing head 301, and the plate-like structure can rotate within the channel 3014), three adjustment holes 3021 can also be provided on the plate-like structure, as shown in the figure. That is, adjustment holes 3021 are provided at the positions where they are horizontally connected to the mounting hole 3022, at the positions where they are inclined to the mounting hole 3022, and at the positions where they are vertically connected to the mounting hole 3022.

[0072] like Figure 15 As shown, when the second indexing pin 307 passes through the positioning hole 3013 and the adjusting hole 3021 horizontally connected to the assembly hole 3022, the fixing head 301 is horizontally distributed relative to the positioning plate 302. When the second indexing pin 307 passes through the positioning hole 3013 and the adjusting hole 3021 obliquely connected to the assembly hole 3022, the fixing head 301 is obliquely distributed relative to the positioning plate 302. When the second indexing pin 307 passes through the positioning hole 3013 and the adjusting hole 3021 vertically connected to the assembly hole 3022, the fixing head 301 is vertically distributed relative to the positioning plate 302. Therefore, by cooperating with the fixing hole 3012 and positioning hole 3013 of the fixing head 301 and the assembly hole 3022 and adjusting hole 3021 of the positioning plate 302, the positioning and switching of the arm connector 3 in three commonly used treatment positions—horizontal, downward oblique, and vertical—can be achieved.

[0073] In one embodiment, such as Figure 25As shown, the center of the positioning wheel 303 is provided with a threaded hole 3032 along the axial direction, which is threaded to the treatment head 4. That is, the positioning wheel 303 is threaded to the treatment head 4 through the threaded hole 3032. The outer side wall of the positioning wheel 303 is provided with an assembly step surface 3033, and the inner side wall of the sleeve 304 is provided with an assembly groove 3043 that engages with the assembly step surface 3033, so that the positioning wheel 303 is engaged and fixed in the sleeve 304.

[0074] In one embodiment, such as Figure 26 As shown, a second mounting hole 3042 is provided on the lower part of one side of the sleeve 304, such as... Figure 23 As shown, the first end of the positioning wheel 303 is provided with a plurality of positioning grooves 3031 evenly distributed along the circumference, and the third indexing pin 308 passes through the second mounting hole 3042 and is engaged in the positioning groove 3031.

[0075] It should be noted that, as Figure 13 and Figure 14 As shown, a gap is provided between the inner wall of the sleeve 304 and the outer wall of the positioning wheel 303 so that the positioning wheel 303 can rotate inside the sleeve 304. When the positioning wheel 303 rotates, the treatment head 4 can be rotated so as to adjust the position of the treatment head 4. When the treatment head 4 is rotated to the required position, it can be fixed in the positioning groove 3031 by the third indexing pin 308 passing through the second mounting hole 3042, so as to realize the circumferential rotation (local fine adjustment) and positioning operation of the treatment head 4.

[0076] It should be noted that the first arm and second arm, first end and second end, first mounting hole 3041 and second mounting hole 3042, first indexing pin 305 and second indexing pin 307 and third indexing pin 308 mentioned in this application are only distinguished by their different positions and do not have any order of precedence.

[0077] In addition, it should be noted that the orientation or positional relationship indicated by "horizontal", "vertical", etc. in this application is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of simplifying the description and making it easier to understand, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0078] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0079] The quick-release support arm base and connector provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quick release boom base and joint, characterized by, include: Support arm base (1); The support arm (2) includes a first arm that is vertically disposed on the support arm base (1) and a second arm that is hinged to one side of the top of the first arm; The arm connector (3) includes a fixing head (301), a positioning plate (302), a positioning wheel (303), and a sleeve (304) connected to the end of the second arm. The first end of the positioning plate (302) is connected to the fixing head (301), and the second end of the positioning plate (302) is inserted into the first end of the sleeve (304). The positioning wheel (303) is nested and locked in the second end of the sleeve (304). A first mounting hole (3041) is provided on the upper part of one side of the sleeve (304). A mating hole (3023) is provided on the second end of the positioning plate (302). A first indexing pin (305) passes through the aligned first mounting hole (3041) and the mating hole (3023). The treatment head (4) is inserted into the sleeve (304) and connected to the positioning wheel (303).

2. The quick release boom base and joint of claim 1, wherein, The support arm base (1) includes a base (101), a base connector (102) connected to the first arm, and a handle screw (103). The upper part of the base (101) is provided with a slot (1012) for accommodating the base connector (102), and the base connector (102) is rotatably mounted on the base (101). A screw hole is provided on one side of the slot (1012), and the handle screw (103) is threadedly connected to the screw hole to adjust the diameter of the slot (1012).

3. The quick release boom base and joint of claim 2, wherein, The bottom of the base (101) is provided with a limiting groove (1011), the limiting groove (1011) is located at the bottom of the slot (1012), and the bottom of the base connector (102) is provided with a limiting boss (1021), the limiting boss (1021) and the limiting groove (1011) are engaged and fixed.

4. The quick release boom base and joint of claim 3, wherein, The base (101) has an annular groove (1013) in the middle, which is connected to the slot (1012). The base connector (102) has a stepped surface structure (1023) in the middle, which is engaged and fixed with the annular groove (1013).

5. The quick release boom base and joint of claim 3, wherein, The limiting groove (1011) includes a fan-shaped groove, and the limiting boss (1021) includes a fan-shaped boss.

6. The quick release boom foot and joint of any one of claims 1 to 5, wherein, The first end of the fixing head (301) is provided with a connecting hole (3011) along the axial direction, and the connecting hole (3011) is threadedly connected to the second arm.

7. The quick release boom foot and joint of any one of claims 1 to 5, wherein, The bottom of the second end of the fixing head (301) is provided with relatively distributed baffles, and a channel (3014) is provided between the two baffles. The first end of the positioning plate (302) is inserted into the channel (3014). The baffle is provided with a fixing hole (3012). The first end of the positioning plate (302) is provided with an assembly hole (3022). The fixing member (306) passes through the aligned fixing hole (3012) and the assembly hole (3022).

8. The quick release boom base and joint of claim 7, wherein, The baffle is provided with a positioning hole (3013), and the first end of the positioning plate (302) is provided with three matching adjustment holes (3021). The second indexing pin (307) passes through the positioning hole (3013) and one of the adjustment holes (3021) so that the fixing head (301) is in a horizontal, vertical or inclined state relative to the positioning plate (302).

9. The quick release boom foot and joint of any one of claims 1 to 5, wherein, The center of the positioning wheel (303) is provided with a threaded hole (3032) that is threaded to the treatment head (4) along the axial direction. The outer side wall of the positioning wheel (303) is provided with an assembly step surface (3033). The inner side wall of the sleeve (304) is provided with an assembly groove (3043) that engages with the assembly step surface (3033).

10. The quick release boom foot and joint of any one of claims 1 to 5, wherein, The lower part of one side of the sleeve (304) is provided with a second mounting hole (3042), and the first end of the positioning wheel (303) is provided with a plurality of positioning grooves (3031) evenly distributed along the circumference. The third indexing pin (308) passes through the second mounting hole (3042) and is engaged in the positioning groove (3031).