Connector and air jet loom

Abstract

The utility model discloses a connector and an air jet loom. The connector comprises two supporting plates, the two supporting plates are spaced in the thickness direction so as to clamp a connecting rod hook, each supporting plate is provided with a shaft hole penetrating in the thickness direction of the supporting plate, the connector further comprises a detachable structure and a shaft sleeve, the shaft sleeve is arranged on the outer ring of the detachable structure in a sleeving mode, and the shaft sleeve is provided with an outer ring used for being connected with a heald frame; the detachable structure comprises a first connecting part and a second connecting part, and the first connecting part and the second connecting part penetrate through the two shaft holes and are detachably connected so as to fix the relative positions of the two supporting plates. The connector can be disassembled, assembled and replaced more quickly, maintenance time and maintenance cost can be reduced, and production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loom connection structures, in particular to a connector and a jet loom. Background Art

[0002] In a jet loom, a heddle frame is connected to a connecting rod hook through a connector, and the connecting rod hook is driven to move through the connector. During the rapid reciprocating movement of the heddle frame, the connector wears severely and needs to be regularly inspected and replaced to avoid poor transmission caused by wear.

[0003] However, the connector in the related art is not convenient for disassembly and assembly, which increases the maintenance time and cost. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a connector that can be disassembled, assembled and replaced more quickly, which is beneficial to reducing the maintenance time and cost and improving the production efficiency.

[0005] The utility model also provides a jet loom.

[0006] According to a first aspect embodiment of the utility model, a connector is provided, which includes two support plates. The two support plates are spaced apart in their thickness directions to sandwich a connecting rod hook. Each support plate is provided with a shaft hole penetrating in its thickness direction. The connector further includes a detachable structure and a shaft sleeve. The shaft sleeve is arranged on the outer ring of the detachable structure, and the shaft sleeve has an outer ring for connecting a heddle frame. Wherein, the detachable structure includes a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion pass through the two shaft holes and are detachably connected to fix the relative positions of the two support plates.

[0007] In some embodiments, the first connecting portion includes an integrally formed first locking section and a first mating section, and the second connecting portion includes an integrally formed second locking section and a second mating section. The first locking section and the second locking section pass through the two shaft holes and are detachably connected. The first mating section and the second mating section respectively abut against the two support plates and apply a supporting force to the support plates at least in the thickness direction.

[0008] In some embodiments, the first mating section abuts against the inner wall surface of one shaft hole, and the second mating section abuts against the inner wall surface of the other shaft hole.

[0009] In some embodiments, the outer peripheral surfaces of the first mating section and the second mating section respectively fit with the inner wall surfaces of the corresponding shaft holes.

[0010] In some embodiments, the inner wall surface of each of the shaft holes is configured as a conical surface, and the outer peripheral surfaces of the first fitting section and the second fitting section are both configured as conical inclined surfaces that fit with the conical surface; the wide openings of the two shaft holes are arranged in directions away from each other.

[0011] In some embodiments, the support plate is provided with a flanging portion, one end of the flanging portion is connected to the circumferential edge of the shaft hole, and the other end of the flanging portion gradually inclines in a direction away from the support plate and close to the axis of the shaft hole; the flanging portions on the two support plates are arranged facing each other, and the shaft sleeve abuts against the outer circles of the two flanging portions.

[0012] In some embodiments, one of the first connecting portion and the second connecting portion is configured as a nut, and the other is configured as a bolt; a connecting hole for drivingly connecting a hexagonal wrench is formed in the bolt.

[0013] In some embodiments, the connector further includes a self-lubricating wear-resistant plastic hexagonal block sleeved on the outer circle of the shaft sleeve; the self-lubricating wear-resistant plastic hexagonal block abrades against the outer circle of the shaft sleeve to release solid powder lubrication.

[0014] In some embodiments, a connecting head for positioning is fixed on the outer circle of the self-lubricating wear-resistant plastic hexagonal block.

[0015] An embodiment of a jet loom according to the second aspect of the present invention includes the above-mentioned connector, connecting rod hook, heddle frame and pin; the connecting rod hook is clamped between the two support plates; a connecting hole is formed in each support plate; the pin sequentially passes through the connecting hole of one support plate, the connecting rod hook and the connecting hole of the other support plate, so that the connecting rod hook is clamped between the two support plates; the heddle frame is connected to the outer circle of the shaft sleeve.

[0016] It can be seen from the combined technical solutions that the embodiments provided by the present invention have the following advantages: It can be seen from the technical solutions that this embodiment has the following advantages: (1) When the first connecting portion and the second connecting portion are connected, the two support plates are spaced apart in the thickness direction and the relative positions are fixed, which is beneficial to stably connecting the connector between the heddle frame and the connecting rod hook, improving the stability of the connector connection, and thus transmitting more stably; (2) A shaft sleeve is arranged between the heddle frame and the detachable structure, which is beneficial to reducing the influence of the heddle frame on the detachable structure and improving the stability of the connector connection; (3) When the first connecting portion and the second connecting portion are disassembled, the two support plates can be disassembled for maintenance and replacement, which is beneficial to reducing the influence of shaft sleeve wear on the transmission efficiency and improving the smoothness and transmission efficiency of the transmission between the connecting rod hook and the heddle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic structural view of a connector according to an embodiment of the present invention;

[0019] Figure 2 is a cross-sectional view of the connector according to an embodiment of the present invention.

[0020] Reference numerals:

[0021] connector 100;

[0022] support plate 1, connection hole 11, shaft hole 12, flanging portion 13,

[0023] detachable structure 2, first connection portion 21, first locking section 211, first mating section 212, second connection portion 22, second locking section 221, second mating section 222;

[0024] bushing 3;

[0025] self-lubricating wear-resistant plastic hexagonal block 4, ring body 40, connection head 41. Detailed implementation manners

[0026] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "thickness", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Reference is made below to Figure 1 - Figure 2 describe the connector 100 and the air-jet loom according to an embodiment of the present utility model.

[0030] Embodiment 1

[0031] As Figure 1 and Figure 2 shown, this embodiment provides a connector 100. The connector 100 includes two support plates 1, the two support plates 1 are spaced apart in their thickness directions, and the connecting rod hook is clamped between the two support plates 1.

[0032] Each support plate 1 is in the shape of a water droplet, and the support plate 1 has a large head and a small head. A shaft hole 12 and a connection hole 11 are formed on the support plate 1. The shaft hole 12 is formed in the large head of the support plate 1, and the connection holes 11 are multiple and arranged in a straight line and are provided in the small head of the support plate 1.

[0033] The connector 100 further includes a detachable structure 2 and a bushing 3. The connector 100 further includes a bushing 3, and the bushing 3 is sleeved on the outer ring of the detachable structure 2, and the outer ring of the bushing 3 is used to connect the heddle frame.

[0034] The detachable structure 2 includes a first connection portion 21 and a second connection portion 22. The first connection portion 21 passes through the shaft hole 12 of one support plate 1, and the second connection portion 22 passes through the shaft hole 12 of the other support plate 1. The first connection portion 21 and the second connection portion 22 are detachably connected to fix the relative positions of the two support plates 1 in the thickness direction.

[0035] When the first connection portion 21 and the second connection portion 22 are connected, the two support plates 1 are spaced apart and the relative positions are fixed in the thickness direction, which is beneficial to stably connecting the connector 100 between the heddle frame and the connecting rod hook, improving the connection stability of the connector 100, and thus transmitting more stably. A bushing 3 is provided between the heddle frame and the detachable structure 2, which is beneficial to reducing the influence of the heddle frame on the detachable structure 2 and improving the connection stability of the connector 100.

[0036] When the first connection portion 21 and the second connection portion 22 are disassembled, the two support plates 1 can be disassembled for maintenance and replacement, which is beneficial to reducing the influence of the wear of the bushing 3 on the transmission efficiency and improving the smoothness and transmission efficiency of the transmission between the connecting rod hook and the heddle frame.

[0037] As can be seen from the technical solution, this embodiment has the following advantages: (1) When the first connecting portion 21 is connected to the second connecting portion 22, the two support plates 1 are spaced apart in the thickness direction and have a fixed relative position, which is beneficial to stably connecting the connector 100 between the heddle frame and the connecting rod hook, improving the connection stability of the connector 100, and thus transmitting more stably; (2) A bushing 3 is provided between the heddle frame and the detachable structure 2, which is beneficial to reducing the influence of the heddle frame on the detachable structure 2 and improving the connection stability of the connector 100; (3) When the first connecting portion 21 and the second connecting portion 22 are disassembled, the two support plates 1 can be disassembled for inspection and replacement, which is beneficial to reducing the influence of the wear of the bushing 3 on the transmission efficiency and improving the smoothness and transmission efficiency of the transmission between the connecting rod hook and the heddle frame.

[0038] In some specific examples, a connection hole 11 is formed on each support plate 1. The connection hole 11 is used to connect the connecting rod hook. For example, by using a fastener to pass through the connection hole 11 and the connecting rod hook, the connecting rod hook is fixed between the two support plates 1. An axial hole 12 is formed on each support plate 1, and the axial hole 12 is formed through along its own thickness direction.

[0039] The bushing 3 is made of stainless steel.

[0040] Embodiment Two

[0041] This embodiment is basically the same as Embodiment One, except that the specific structure of the detachable structure 2 is further defined.

[0042] As Figure 1 and Figure 2 shown, further, the first connecting portion 21 includes an integrally formed first locking section 211 and a first mating section 212, the second connecting portion 22 includes an integrally formed second locking section 221 and a second mating section 222. The first locking section 211 and the second locking section 221 pass through the two axial holes 12 and are detachably connected. The first mating section 212 and the second mating section 222 both abut against the support plate 1 and apply a supporting force at least in the thickness direction.

[0043] When the first locking section 211 and the second locking section 221 are connected, the first mating section 212 abuts against one side of a support plate 1 facing away from the other support plate 1, the second mating section 221 abuts against one side of the other support plate 1 facing away from the one support plate 1. The first mating section 212 applies a supporting force in the thickness direction to one support plate 1, the second mating section 222 applies a supporting force in the thickness direction to the other support plate 1, and the directions of the two supporting forces are opposite. Thus, the two support plates 1 are limited between the first mating section 212 and the second mating section 222, that is, the first mating section 212 and the second mating section 222 limit the maximum spacing distance between the two support plates 1 in the thickness direction.

[0044] A possible specific implementation is as follows: The first mating section 212 and the second mating section 222 are configured as flanges. The radius of the flange is greater than the radius of the shaft hole 12, and the axial end face of the flange abuts against the surface of the support plate 1. When the first locking section 211 and the second locking section 221 approach each other in the thickness direction, the first mating section 212 gives a supporting force to one support plate 1 in the thickness direction, and the second mating section 222 gives a supporting force to the other support plate 1 in the thickness direction. The directions of the two supporting forces point towards each other to fix the relative positions of the two support plates 1 in the thickness direction. This specific implementation is simple and reliable, with high stability and reliability. However, the flange will protrude from the surface of the support plate 1, resulting in the connector 100 occupying more space.

[0045] Embodiment III

[0046] This embodiment is basically the same as Embodiment II, except that the assembly method of the detachable structure 2 and the shaft hole 12 is defined.

[0047] As Figure 1 and Figure 2 shown, the first mating section 212 abuts against the inner wall surface of one shaft hole 12, and the second mating section 222 abuts against the inner wall surface of the other shaft hole 12.

[0048] A possible specific implementation is that the shaft hole 12 is configured as a stepped hole, and the first mating section 212 and the second mating section 222 can abut against the stepped surface.

[0049] Embodiment IV

[0050] This embodiment is basically the same as Embodiment II, except that the assembly method of the detachable structure 2 and the shaft hole 12 is defined.

[0051] As Figure 1 and Figure 2 shown, further, the outer peripheral surfaces of the first mating section 212 and the second mating section 222 are respectively in contact with the inner wall surfaces of the corresponding shaft holes 12.

[0052] A possible implementation is that the first mating section 212 and the second mating section 222 are respectively in interference fit with the inner wall surface of the shaft hole 12. This method is simpler and more reliable and easier to install.

[0053] As Figure 1 and Figure 2 ​As shown, further, the inner wall surface of the shaft hole 12 is configured as a conical surface. In a plane perpendicular to the axial direction, the projected area of the shaft hole 12 in this plane gradually changes along the thickness direction. Combining the above embodiments, the outer peripheral surfaces of the first fitting section 212 and the second fitting section 222 are both in contact with the corresponding inner wall surface of the shaft hole 12. It can be seen therefrom that the outer peripheral surfaces of the first fitting section 212 and the second fitting section 222 are both conical inclined surfaces, and the conical inclined surfaces are adapted to the conical surface.

[0054] During specific assembly, the axes of the two shaft holes 12 are aligned, and the wide openings of the two shaft holes 12 are arranged facing away from each other, and the narrow openings of the two shaft holes 12 are arranged facing each other. When the first locking section 211 and the second locking section 221 approach each other in the thickness direction for locking and fitting, the first fitting section 212 gradually moves to the narrow opening of one shaft hole 12, and the second fitting section 222 gradually moves to the narrow opening of the other shaft hole 12. By using the pressure generated during the movement of the inclined surface to clamp the two support plates 1, while improving the stability, the disassembly and assembly difficulty can also be reduced, and the convenience of disassembly and assembly can be improved.

[0055] Here, the wide opening and the narrow opening refer to: the diameter of the shaft hole gradually changes along the axial direction, one end on the axis is the wide opening with a larger diameter, and the other end on the axis is the narrow opening with a smaller diameter.

[0056] As Figure 1 and Figure 2 As shown, further, the support plate 1 is provided with a flanging portion 13. One end of the flanging portion 13 is connected to the circumferential edge of the shaft hole 12, and the other end of the flanging portion 13 gradually inclines along a direction away from the support plate 1 and towards the axis of the shaft hole 12;

[0057] The flanging portion 13 on one support plate 1 is arranged facing the flanging portion 13 on the other support plate 1, and the shaft sleeve 3 is sleeved on the outer circles of the two flanging portions 13. During installation, after the shaft sleeve 3 is sleeved on the outer circle of one flanging portion 13, the outer circle of the other flanging portion 13 is then assembled into the shaft sleeve 3, that is, the flanging portion 13 can position the installation position of the shaft sleeve 3, further improving the convenience of disassembly and assembly.

[0058] Further, the inner peripheral surface of the flanging portion is a conical surface. That is, the flanging portion provided on the support plate can use the inclined surface of the inner peripheral surface to lock the first fitting section or the second fitting section, and at the same time achieve a positioning effect. It should be emphasized that the inner peripheral surface of the flanging portion is a conical surface, which can reduce the average thickness of the support plate under the condition of the same locking inclined surface area.

[0059] Embodiment Five

[0060] As Figure 1 and Figure 2As shown, this embodiment is basically the same as the first embodiment, except that: the outer surface of the first locking section 211 is threadedly connected to the inner surface of the second locking section 221, and the first connecting portion 21 is hollow and used for drivingly connecting a hex wrench; or, the outer surface of the second locking section 221 is threadedly connected to the inner surface of the first locking section 211, and the second connecting portion 22 is hollow and used for drivingly connecting a hex wrench.

[0061] The middle part of the first connecting portion 21 has a hexagonal hole, and the hexagonal hole can cooperate with a hex wrench. Or the middle part of the second connecting portion 22 has a hexagonal hole, and the hexagonal hole can cooperate with a hex wrench.

[0062] Embodiment Six

[0063] As Figure 1 and Figure 2 As shown, this embodiment is basically the same as the first embodiment, except that: the connector 100 further includes a self-lubricating and wear-resistant plastic hexagon block 4 disposed between the shaft sleeve 3 and the heddle frame. The self-lubricating and wear-resistant plastic hexagon block 4 rotates relative to the outer ring of the shaft sleeve 3 to release solid powder lubrication. The self-lubricating and wear-resistant plastic hexagon block 4 is sleeved outside the shaft sleeve 3. The shaft sleeve 3 is connected to the heddle frame through the self-lubricating and wear-resistant plastic hexagon block 4. The outer ring of the shaft sleeve 3 and the inner ring of the self-lubricating and wear-resistant plastic hexagon block 4 are rubbed against each other, and oil-free lubrication can be achieved during operation, improving the service life.

[0064] In the specific application scenario of weaving, there is a lot of cotton floc in the production environment. If lubricating oil is used to lubricate the shaft sleeve, the lubricating oil will be contaminated with cotton floc, resulting in poor lubrication, serious wear, affecting the equipment life, reducing production and increasing maintenance costs. By adopting the self-lubricating and wear-resistant plastic hexagon block 4 capable of releasing solid powder, the present application can achieve oil-free lubrication, which is beneficial to reducing the impact of poor component lubrication, serious wear or jamming on production efficiency.

[0065] As Figure 1 and Figure 2 As shown, further, a connecting head 41 for positioning is fixed on the outer ring of the self-lubricating and wear-resistant plastic hexagon block 4. There is relative rotation between the self-lubricating and wear-resistant plastic hexagon block 4 and the shaft sleeve 3. By providing the connecting head 41, the connecting position of the heddle frame can be positioned. Specifically, the self-lubricating and wear-resistant plastic hexagon block includes an annular body (not shown in the figure) and a connecting head 41, and the connecting head is arranged on the outer ring of the annular body. The annular body is a non-centrally symmetric structure. A part of the outer ring of the annular body is a hexagonal structure, and another part of the outer ring of the annular body is a circular structure. The hexagonal structure is used to clamp the heddle frame, and the heddle frame drives the self-lubricating and wear-resistant plastic hexagon block 4 to rotate; a connecting head 41 is connected to another part of the outer ring of the annular body (i.e., the circular structure part), and the installation and debugging personnel can quickly position the clamping position of the heddle frame according to the connecting head 41.

[0066] Embodiment Seven

[0067] This embodiment provides a jet loom, which includes the connector 100, the connecting rod hook, the heddle frame and the pin in any of the above embodiments. The connecting rod hook is clamped between two support plates 1, and each support plate 1 is provided with a connecting hole 11; the pin sequentially passes through the connecting hole 11 of one support plate 1, the connecting rod hook and the connecting hole 11 of the other support plate 1, so that the connecting rod hook is clamped between the two support plates 1;

[0068] The pin passes through the connecting hole 11 to fix the support plate 1 and the connecting rod hook, and the heddle frame is connected to the outer ring of the bushing 3.

[0069] Combined with the technical solution, it can be seen that this embodiment has the following advantages: (1) When the first connecting portion 21 is connected to the second connecting portion 22, the two support plates 1 are spaced apart in the thickness direction and the relative positions are fixed, which is beneficial to the stable connection of the connector 100 between the heddle frame and the connecting rod hook, improving the stability of the connection of the connector 100, and thus transmitting more stably; (2) The bushing 3 is provided between the heddle frame and the detachable structure 2, which is beneficial to reducing the influence of the heddle frame on the detachable structure 2 and improving the stability of the connection of the connector 100; (3) When the first connecting portion 21 is detached from the second connecting portion 22, the two support plates 1 can be disassembled for maintenance and replacement, which is beneficial to reducing the influence of the wear of the bushing 3 on the transmission efficiency and improving the smoothness and transmission efficiency of the transmission between the connecting rod hook and the heddle frame.

[0070] The other components and operations of the jet loom according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here. In the description of the present invention, the "first feature" and the "second feature" may include one or more of such features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0071] In the description of the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through other features therebetween. Moreover, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0072] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0073] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A connector, comprising two support plates (1), the two support plates (1) being spaced apart in their thickness direction to sandwich a connecting rod hook, and each support plate (1) being provided with a shaft hole (12) penetrating in its thickness direction, characterized in that, It further includes a detachable structure (2) and a bushing (3). The bushing (3) is sleeved on the outer circle of the detachable structure (2), and the bushing (3) has an outer circle for connecting the heddle frame. Wherein, the detachable structure (2) includes a first connecting portion (21) and a second connecting portion (22). The first connecting portion (21) and the second connecting portion (22) pass through the two shaft holes (12) and are detachably connected to fix the relative positions of the two support plates (1).

2. The connector according to claim 1, wherein The first connecting portion (21) includes an integrally formed first locking section (211) and a first mating section (212), and the second connecting portion (22) includes an integrally formed second locking section (221) and a second mating section (222). The first locking section (211) and the second locking section (221) pass through the two shaft holes (12) and are detachably connected. The first mating section (212) and the second mating section (222) respectively abut against the two support plates (1) and apply a supporting force to the support plates (1) at least in the thickness direction.

3. The connector according to claim 2, characterized in that, The first mating section (212) abuts against the inner wall surface of one of the shaft holes (12), and the second mating section (222) abuts against the inner wall surface of the other shaft hole (12).

4. The connector according to claim 3, characterized in that, The outer peripheral surfaces of the first mating section (212) and the second mating section (222) respectively fit with the inner wall surfaces of the corresponding shaft holes (12).

5. The connector according to claim 4, wherein The inner wall surface of each shaft hole (12) is configured as a conical surface, and the outer peripheral surfaces of the first mating section (212) and the second mating section (222) are both configured as conical inclined surfaces that cooperate with the conical surface. The wide openings of the two shaft holes (12) are arranged in directions away from each other.

6. The connector according to claim 1, characterized in that, The support plate (1) is provided with a flanging portion (13). One end of the flanging portion (13) is connected to the circumferential edge of the shaft hole (12), and the other end of the flanging portion (13) gradually inclines in a direction away from the support plate (1) and close to the axis of the shaft hole. The flanging portions (13) on the two support plates (1) are arranged facing each other, and the bushing (3) abuts against the outer circles of the two flanging portions (13).

7. The connector according to claim 1, wherein One of the first connecting portion and the second connecting portion is configured as a nut, and the other is configured as a bolt. The bolt is provided with a connection hole for drivingly connecting a hexagon wrench.

8. The connector according to claim 1, wherein It further includes a self-lubricating wear-resistant plastic hexagon block (4) sleeved on the outer circle of the bushing (3). The self-lubricating wear-resistant plastic hexagon block (4) rubs against the outer circle of the bushing (3) to release solid powder lubrication.

9. The connector according to claim 8, wherein The outer circle of the self-lubricating wear-resistant plastic hexagon block (4) is fixed with a connection head (41) for positioning.

10. A jet loom, characterized in that, It includes a connector (100) according to any one of claims 1-9, a connecting rod hook, a heddle frame, and a pin. The connecting rod hook is clamped between the two support plates (1). Each support plate (1) is provided with a connection hole (11). The pin sequentially passes through the connection hole (11) of one of the support plates (1), the connecting rod hook, and the connection hole (11) of the other support plate (1), so that the connecting rod hook is clamped between the two support plates (1); The heddle frame is connected to the outer ring of the bushing (3).

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