CN111564724A

CN111564724A - Pull type connector

Info

Publication number: CN111564724A
Application number: CN201911317715.9A
Authority: CN
Inventors: 赵汝琛; 潘少威; 邓伟建; 孔棉花
Original assignee: Guangzhou Arnold Medical Device Co ltd
Current assignee: Guangzhou Arnold Medical Device Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-21

Abstract

The invention discloses a pull-type connector, which comprises a linkage piece, a guide piece and a handle, wherein the linkage piece comprises a front end and a rear end, the front end can be used for extending into an assembly hole of a to-be-connected piece and being fixed in the circumferential direction, the guide piece is sleeved outside the middle part of the linkage piece, the first end and the front end of the guide piece both extend into the assembly hole, the outer wall of the first end and the inner wall of the assembly hole are respectively provided with a sliding groove and a protrusion, the sliding groove and the protrusion are in sliding fit, the sliding groove comprises a first groove section arranged along the axial direction of the linkage piece and a second groove section arranged along the circumferential direction of the linkage piece, two ends of the handle are respectively in sliding fit with the second end and the rear end of the guide piece, the handle slides along the axial direction of the linkage piece, the inner wall of the handle and the outer wall of the second end are respectively provided with a guide groove and a buckle body in sliding fit, the guide groove is arranged in a. According to the pull-type connector, the handle is pressed towards the to-be-connected piece, the guide piece can be driven to rotate, the guide piece and the to-be-connected piece are locked, and the self-locking function is achieved.

Description

Pull type connector

Technical Field

The invention relates to the technical field of connectors, in particular to a pull-type connector.

Background

Connectors may be used to electrically connect devices to wiring, may be used to transfer signals, current, and the like. Because in use need make signal or electric current stable transmission, consequently need connect with equipment stable connection, difficult pine takes off, but traditional connector is unable auto-lock with being connected of equipment, still needs operating personnel manual locking operation, leads to operating personnel to need both hands to operate, can influence operating personnel's use.

Disclosure of Invention

Accordingly, the present invention is directed to overcoming the disadvantages of the prior art and providing a pull-type connector that is self-locking and single-handed.

The technical scheme is as follows:

a pull-type connector comprising:

the linkage piece comprises a front end and a rear end, and the front end can be used for extending into an assembling hole of the to-be-connected piece and circumferentially fixing the to-be-connected piece;

the guide piece is sleeved outside the middle part of the linkage piece, the first end and the front end of the guide piece both extend into the assembly hole, the outer wall of the first end and the inner wall of the assembly hole are respectively provided with a sliding groove and a protrusion, the sliding groove is in sliding fit with the protrusion, and the sliding groove comprises a first groove section arranged along the axial direction of the linkage piece and a second groove section arranged along the circumferential direction of the linkage piece; and

the handle, the both ends of handle respectively with the second end of guide piece, rear end sliding fit, the handle is followed the axial slip of linkage piece, the inner wall of handle with be equipped with sliding fit's guide slot and knot body on the outer wall of second end respectively, the guide slot is the heliciform setting, and works as it follows to detain the body when the guide slot removes, protruding edge the second groove section slides.

The pull-type connector can assemble the linkage piece, the guide piece and the handle, the guide piece can be sleeved outside the middle part of the linkage piece, one end of the handle enables the handle to be in sliding fit with the second end through the matching of the sliding groove and the bulge, the other end of the handle is in sliding fit with the linkage piece, the handle slides along the axial direction of the linkage piece, the front end and the first end extend into the assembly hole, the front end can slide along the assembly hole, the bulge can move along the first groove section, the front end is fixed in the circumferential direction in the assembly hole and cannot rotate, the handle in sliding fit with the linkage piece cannot rotate, but the handle is in sliding fit with the second end of the guide piece, along with the axial movement of the linkage piece, the buckle body moves along the guide groove, the guide piece rotates under the guidance of the guide groove, meanwhile, the first end of the guide piece rotates relative to the inner wall of the assembly hole, the bulge slides along the second groove section, the bulge is clamped into the second groove section, and at the moment, the front, can not be drawn out from the assembly hole. According to the pull-type connector, after the front end of the linkage part and the first end of the guide part are inserted into the assembly hole, the guide part can be driven to rotate only by pressing the handle to the to-be-connected part, so that the first end of the guide part is locked with the to-be-connected part, the self-locking function can be realized, the locking function can be realized through one-hand operation, and the operation is simple.

In one embodiment, the sliding groove is disposed on an outer wall of the first end, the guide groove is disposed on an outer wall of the second end, and the guide groove and the second groove section are disposed along the same direction in a circumferential direction of the guide member.

In one embodiment, a blocking portion is convexly arranged at the middle of the guide piece, the blocking portion is used for being abutted against the piece to be connected, and the sliding groove and the guide groove are respectively arranged at two sides of the blocking portion.

In one embodiment, the guide member includes a first split body and a second split body, the first split body and the second split body are in butt joint, a containing cavity is defined between the first split body and the second split body, the sliding groove is arranged on the first split body, and the guide groove is arranged on the second split body.

In one embodiment, a first butt-joint part is arranged at one end, close to the first split body, of the second split body, the outer edge of the first butt-joint part is turned over towards the first split body to form a bayonet, a clamping groove is formed in the inner side wall of the bayonet, the length of the clamping groove is smaller than the depth of the bayonet, a second butt-joint part is arranged at one end, close to the second split body, of the first split body, the second butt-joint part is used for extending into the bayonet and is matched with the first butt-joint part to form the blocking part, and a protruding part matched with the clamping groove is arranged on the second butt-joint part.

In one embodiment, a positioning portion is disposed on an inner wall of the assembly hole, the positioning portion is disposed on a side of the protrusion away from the handle, a first limiting groove in sliding fit with the positioning portion and a second limiting groove in sliding fit with the protrusion are disposed on an outer wall of the front end, the protrusion can enter the first groove section through the second limiting groove, and when the protrusion is located in the second groove section, the positioning portion is located in the first limiting groove.

In one embodiment, the pull-type connector further includes a contact pin and an abutting member, a mounting hole is formed in the linking member, an annular step is formed in the mounting hole, the contact pin includes a needle and a main body, the needle penetrates through the annular step, the abutting member is in threaded fit with the mounting hole, and the abutting member and the annular step are used for cooperatively clamping the main body.

In one embodiment, the pull-type connector further comprises a fastener, wherein a line passing hole is formed in the abutting part, a plurality of clamping portions are arranged at intervals along the circumferential direction at the end part of the abutting part far away from the annular step, the fastener is sleeved on the end part of the abutting part far away from the annular step, the clamping portions all extend into the fastener, and the hole diameter of an inner hole of the fastener is gradually reduced along the direction far away from the annular step.

In one embodiment, the abutting member further includes a threaded portion and a stop portion, the threaded portion is disposed on a side of the stop portion away from the clamping portion, the threaded portion is in threaded engagement with the mounting hole, the stop portion is configured to abut against the handle, and the stop portion is spaced apart from the guide member.

In one embodiment, the distance between the two opposite side walls of the second groove section is gradually reduced along the direction away from the first groove section.

Drawings

Fig. 1 is an exploded view of a pull connector according to an embodiment of the present invention;

FIG. 2 is a first side view of a pull type connector according to an embodiment of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view of a member to be connected according to an embodiment of the present invention;

FIG. 5 is a first view illustrating the assembly of the guide, the protrusion and the buckle according to the embodiment of the present invention;

FIG. 6 is a second side view of the pull connector of the present embodiment;

FIG. 7 is a second schematic view of the assembly of the guide, the protrusion and the buckle according to the embodiment of the present invention;

FIG. 8 is a cross-sectional view of a handle according to an embodiment of the present invention;

FIG. 9 is a schematic view of the assembly of a guide according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of an abutment member according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of the abutment, fastener and stylus after assembly according to an embodiment of the invention.

Description of reference numerals:

100. the connecting piece comprises a connecting piece, 101, an axial groove, 102, a mounting hole, 103, an annular step, 110, a front end, 120, a rear end, 200, a guide piece, 201, a blocking part, 202, a containing cavity, 210, a first split body, 211, a second butt-joint part, 212, a bulge part, 220, a second split body, 221, a first butt-joint part, 222, a bayonet, 223, a clamping groove, 300, a handle, 310, a guide block, 410, a sliding groove, 411, a first groove section, 412, a second groove section, 420, a bulge, 430, a guide groove, 440, a buckle body, 450, a positioning part, 460, a first limiting groove, 500, 510, a needle head, 520, a main body, 600, a butt-joint part, 601, a wire passing hole, 610, a clamping part, 620, a threaded part, 630, a stop part, 700, a fastening piece, 10, a to-be connected piece, 11 and an assembling hole.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1 to 5, an embodiment discloses a pull-type connector, which includes a linkage member 100, a guide member 200 and a handle 300, wherein the linkage member 100 includes a front end 110 and a rear end 120, the front end 110 can be used to extend into an assembly hole 11 of a to-be-connected member 10 and be circumferentially fixed, the guide member 200 is sleeved outside the middle portion of the linkage member 100, both a first end and the front end 110 of the guide member 200 extend into the assembly hole 11, a sliding groove 410 and a protrusion 420 are respectively disposed on an outer wall of the first end and an inner wall of the assembly hole 11, the sliding groove 410 and the protrusion 420 are in sliding fit, the sliding groove 410 includes a first groove section 411 disposed along an axial direction of the linkage member 100 and a second groove section 412 disposed along a circumferential direction of the linkage member 100, two ends of the handle 300 are respectively in sliding fit with a second end and the rear end 120 of the guide member 200, the handle 300 slides along the axial direction of the linkage member 100, a guide groove 430 and a buckle body 440 are respectively disposed on an inner wall and an outer wall of the second end, the guide groove 430 is spirally configured, and when the button body 440 moves along the guide groove 430, the protrusion 420 slides along the second groove section 412.

The pull type connector can assemble the linkage member 100, the guide member 200 and the handle 300, the guide member 200 can be sleeved outside the middle part of the linkage member 100, one end of the handle 300 enables the handle 300 to be in sliding fit with the second end through the matching of the sliding groove 410 and the protrusion 420, the other end of the handle 300 is in sliding fit with the linkage member 100, the handle 300 slides along the axial direction of the linkage member 100, the front end 110 and the first end extend into the assembly hole 11, the front end 110 can slide along the assembly hole 11, the protrusion 420 can move along the first groove section 411, the front end 110 is fixed and can not rotate along the inner circumference of the assembly hole 11, the handle 300 in sliding fit with the linkage member 100 can not rotate, but the handle 300 is in sliding fit with the second end of the guide member 200, the buckle body 440 moves along the guide groove 430 along the axial direction of the linkage member 100, the guide member 200 rotates downwards in the guide of the guide groove 430, and the first end of the guide member 200 rotates relative to the inner wall of the assembly hole 11, the protrusion 420 slides along the second groove section 412, so that the protrusion 420 is clamped in the second groove section 412, and the front end 110 of the guide member 200 is locked with the member to be connected 10 and cannot be drawn out through the assembly hole 11. After the front end 110 of the linkage member 100 and the first end of the guide member 200 are inserted into the assembly hole 11, the pull-type connector can drive the guide member 200 to rotate only by pressing the handle 300 to the to-be-connected member 10, so that the first end of the guide member 200 is locked with the to-be-connected member 10, a self-locking function can be realized, and the locking function can be realized through one-hand operation, so that the operation is simple.

In one embodiment, as shown in fig. 5 to 7, the sliding groove 410 is provided on the outer wall of the first end, the guide groove 430 is provided on the outer wall of the second end, and the guide groove 430 is disposed along the same direction as the second groove section 412 in the circumferential direction of the guide member 200. Because the guide groove 430 and the sliding groove 410 are both provided with the guide member 200 and are respectively located at the first end and the second end, the guide groove 430 and the sliding groove 410 are arranged along the same circumferential direction of the guide member 200, so that the sliding fit of the guide groove 430 and the buckle body 440 can drive the protrusion 420 to be in sliding fit with the sliding groove 410, and the fit of the two parts is not interfered with each other, so as to ensure that the pull-type connector can realize self-locking by pressing the guide member 200 to the to-be-connected member 10. At this time, the front end 110 and the first end may be inserted into the assembly hole 11, the front end 110 and the first end may be guided and limited, and then the protrusion 420 may enter the sliding groove 410 by aligning, which may facilitate the operation.

Specifically, fig. 5 shows an assembled state of the protrusion 420, the buckle body 440 and the guide 200 in the structure shown in fig. 2, and fig. 7 shows an assembled state of the protrusion 420, the buckle body 440 and the guide 200 in the structure shown in fig. 6, wherein when the handle 300 is pressed toward the to-be-connected component 10, the buckle body 440 on the handle 300 moves toward the to-be-connected component 10, and the buckle body 400 moves from the position in fig. 5 to the position in fig. 7, then the guide 200 rotates under the guide of the guide groove 430, so that the protrusion 420 moves from the position in fig. 5 to the position in fig. 7, and self-locking is achieved.

Alternatively, as shown in fig. 1, 3 and 8, the linkage 100 is provided with an axial groove 101, and the handle 300 is provided with a guide block 310 slidably engaged with the axial groove 101. Allowing the handle 300 to move in the axial direction of the link 100.

Specifically, as shown in fig. 5, the guide member 200 is a cylindrical structure, the guide groove 430 is spirally disposed along the outer circumferential surface of the guide member 200, that is, the guide groove 430 extends along both the axial direction and the circumferential direction of the guide member 200, and the extending direction of the guide groove 430 in the circumferential direction of the guide member 200 is the same as the extending direction of the second groove section 412. It is ensured that the guide groove 430 enables the guide member 200 to rotate and the protrusion 420 to enter the second groove section 412 when the guide member 200 is pressed towards the member to be connected 10, so that a self-locking effect is achieved.

In other embodiments, the protrusion 420 may be disposed at the first end of the guide member 200, and the sliding groove 410 may be disposed on the inner wall of the mounting hole 11; the button body 440 may be disposed at the second end of the guide member 200, and the guide groove 430 may be disposed on the inner wall of the handle 300. The self-locking effect can be realized at the moment.

In one embodiment, as shown in fig. 2 and 6, a blocking portion 201 is convexly disposed at a middle portion of the guide member 200, the blocking portion 201 is used for abutting against the member to be connected 10, and the sliding groove 410 and the guide groove 430 are respectively disposed at two sides of the blocking portion 201. The blocking part 201 can abut against the to-be-connected piece 10, limits the guide piece 200, enables the guide piece not to relatively limit the displacement of the to-be-connected piece 10, enables the protrusion 420 not to abut against the joint of the first groove section 411 and the second groove section 412, and enables the protrusion 420 not to slide along the second groove section 412 due to the fact that the contact force is too large and the protrusion 420 is affected by large friction, so that the rotating resistance of the guide piece 200 is reduced, and the operation is more labor-saving.

In other embodiments, the blocking portion 201 may not be provided, and the protrusion 420 abuts against the joint of the first groove section 411 and the second groove section 412 to limit the guide member 200, so as to prevent the guide member from further penetrating into the assembly hole 11, and at this time, the handle 300 may be pushed to press the to-be-connected member 10, thereby achieving self-locking.

In one embodiment, as shown in fig. 9, the guide member 200 includes a first section 210 and a second section 220, the first section 210 and the second section 220 are connected to each other, the first section 210 and the second section 220 enclose a receiving cavity 202 therebetween, a sliding groove 410 is disposed on the first section 210, and a guiding groove 430 is disposed on the second section 220. The accommodating cavity 202 can be internally provided with a chip or a sensor and the like for function expansion, different modules can be placed according to the use requirements, and the application range is wider.

Specifically, the first and

second sub-bodies

210 and 220 are coaxially disposed, so that both ends of the guide 200 can be synchronously rotated to achieve self-locking.

In one embodiment, as shown in fig. 3 and 9, a first butt-joint portion 221 is disposed at one end of the second split body 220 close to the first split body 210, an outer edge of the first butt-joint portion 221 is turned over in a direction of the first split body 210 to form a bayonet 222, a clamping groove 223 is disposed on an inner side wall of the bayonet 222, a length of the clamping groove 223 is smaller than a depth of the bayonet 222, a second butt-joint portion 211 is disposed at one end of the first split body 210 close to the second split body 220, the second butt-joint portion 211 is used for extending into the bayonet 222 and is matched with the first butt-joint portion 221 to form a blocking portion 201, and a protruding portion 212 matched with the clamping groove. Because the length of draw-in groove 223 is less than the degree of depth of bayonet 222, then dock first butt joint portion 221 with second butt joint portion 211, make bulge 212 card go into behind the draw-in groove 223, can enclose between the diapire of first butt joint portion 221 and bayonet 222 and become to hold chamber 202 for put into chip or sensor, and first butt joint portion 221 and second butt joint portion 211 can synchronous rotation this moment, are convenient for realize the auto-lock through pressing handle 300 to treating connecting piece 10.

In one embodiment, as shown in fig. 1 and 4, a positioning portion 450 is disposed on an inner wall of the assembly hole 11, the positioning portion 450 is disposed on a side of the protrusion 420 away from the handle 300, a first limiting groove 460 slidably engaged with the positioning portion 450 and a second limiting groove slidably engaged with the protrusion 420 are disposed on an outer wall of the front end 110, the protrusion 420 can enter the first groove section 411 from the second limiting groove, and when the protrusion 420 is located in the second groove section 412, the positioning portion 450 is located in the first limiting groove 460. At this time, when the front end 110 of the linkage member 100 and the first end of the guide member 200 extend into the assembly hole 11, the protrusion 420 in the assembly hole 11 is in sliding fit with the second limiting groove, after the front end 110 passes through the position of the protrusion 420, the protrusion 420 continues to be in sliding fit with the first groove section 411 of the sliding groove 410, and the positioning portion 450 is in sliding fit with the first limiting groove 460, so that circumferential fixing of the linkage member 100 can be realized, and rotation of the linkage member is prevented, at this time, the handle 300 can be used as a reference for movement of the linkage member 100, and in the process that the handle 300 approaches the to-be-connected member 10, the handle 300 cannot rotate, and the guide member 200 is rotated through the fit of the guide groove 430 and the buckle body 440, so that self-locking of the pull-type.

In other embodiments, an elastic buckle is disposed on an inner wall of the assembling hole 11, a placing hole is disposed on the inner wall of the assembling hole 11, the elastic buckle includes an elastic member and a protruding head, the elastic member is located in the placing hole, the protruding head is connected to the elastic member and partially located outside the placing hole, the protruding head is in a cambered surface structure, a matching recess matched with the protruding head is disposed on an outer wall of the front end 110, and when the matching recess on the front end 110 moves to a position where the protruding head is located, the protruding head can be clamped into the matching recess, so that circumferential fixing of the linking member 100 is achieved.

In one embodiment, as shown in fig. 10 and 11, the pull-type connector further includes a contact pin 500 and an abutting member 600, a mounting hole 102 is formed in the link 100, an annular step 103 is formed in the mounting hole 102, the contact pin 500 includes a needle 510 and a main body 520, the needle 510 penetrates through the annular step 103, the abutting member 600 is in threaded engagement with the mounting hole 102, and the abutting member 600 and the annular step 103 are used for cooperatively clamping the main body 520. The pressing of the stylus 500 is achieved by the abutment 600 rotating with respect to the linkage 100, and the stylus 500 can be replaced or serviced as needed.

In one embodiment, as shown in fig. 1, 10 and 11, the pull-type connector further includes a fastening member 700, a wire passing hole 601 is formed in the abutting member 600, a plurality of clamping portions 610 are circumferentially spaced at an end of the abutting member 600 away from the annular step 103, the fastening member 700 is sleeved on the end of the abutting member 600 away from the annular step 103, the clamping portions 610 all extend into the fastening member 700, and an inner hole diameter of the fastening member 700 is gradually reduced along a direction away from the annular step 103. Because a lead is connected with the contact pin 500 and the lead can penetrate out of the abutting part 600, the lead can penetrate out of the wire passing hole 601, after the fastening part 700 is sleeved on the clamping parts 610 at the end part of the abutting part 600, the clamping parts 610 can be tightened and close to each other along with the fact that the clamping parts 610 extend into the fastening part 700, the lead can be clamped, the fixing effect on the lead is good, and the contact pin 500 and the lead are convenient to detach.

In one embodiment, as shown in fig. 10 and 11, the abutting member 600 further includes a threaded portion 620 and a stop portion 630, the threaded portion 620 is disposed on a side of the stop portion 630 away from the clamping portion 610, the threaded portion 620 is threadedly engaged with the mounting hole 102, the stop portion 630 is configured to abut against the handle 300, and the stop portion 630 is spaced apart from the guide member 200. The handle 300 can be limited by the stop part 630, the buckle body 440 on the handle 300 can be prevented from being separated from the guide groove 430, and the handle is not required to be assembled when in use, so that the handle is more convenient to use.

In one embodiment, as shown in FIG. 5, the distance between the opposing sidewalls of the second trough section 412 decreases in a direction away from the first trough section 411. The junction of second groove section 412 and first groove section 411 can lead to protruding 420, make protruding 420 get into second groove section 412 by first groove section 411, then the distance between the both sides wall of second groove section 412 is great at this moment can prevent protruding 420 card at the junction, guarantee that protruding 420 can get into second groove section 412 by first groove section 411 smoothly, and the distance between the relative both sides wall of second groove section 412 reduces along the direction of keeping away from first groove section 411, then along with protruding 420's removal, the cooperation between protruding 420 and the second groove section 412 is tighter, locking effect is better.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A pull type connector, comprising:

the handle, the both ends of handle respectively with the second end of guide piece, rear end sliding fit, the handle is followed the axial slip of linkage piece, the handle with be equipped with sliding fit's guide slot and knot body on the outer wall of second end respectively, the guide slot is the heliciform setting, and works as it follows to detain the body when the guide slot removes, the arch is followed the second groove section slides.

2. A pull-type connector according to claim 1, wherein said slide groove is provided on an outer wall of said first end, and said guide groove is provided on an outer wall of said second end, said guide groove being provided in the same direction as said second groove section in a circumferential direction of said guide member.

3. The pull-type connector according to claim 2, wherein a stopper is protruded from a middle portion of the guide member, the stopper is adapted to abut against the member to be connected, and the slide groove and the guide groove are respectively provided on both sides of the stopper.

4. The pull-type connector according to claim 3, wherein the guide member comprises a first split body and a second split body, the first split body and the second split body are butted, a containing cavity is defined between the first split body and the second split body, the sliding groove is formed in the first split body, and the guide groove is formed in the second split body.

5. The pull-type connector according to claim 4, wherein a first butt-joint portion is arranged at one end of the second split body close to the first split body, the outer edge of the first butt-joint portion is folded towards the first split body to form a bayonet, a clamping groove is formed in the inner side wall of the bayonet, the length of the clamping groove is smaller than the depth of the bayonet, a second butt-joint portion is arranged at one end of the first split body close to the second split body, the second butt-joint portion is used for extending into the bayonet and is matched with the first butt-joint portion to form the blocking portion, and a protruding portion matched with the clamping groove is arranged on the second butt-joint portion.

6. The pull-type connector according to claim 1, wherein a positioning portion is provided on an inner wall of the fitting hole, the positioning portion is provided on a side of the protrusion away from the handle, a first limiting groove slidably engaged with the positioning portion and a second limiting groove slidably engaged with the protrusion are provided on an outer wall of the front end, the protrusion can enter the first groove section from the second limiting groove, and when the protrusion is located in the second groove section, the positioning portion is located in the first limiting groove.

7. The pull-type connector according to claim 1, further comprising a contact pin and an abutting member, wherein a mounting hole is formed in the linking member, an annular step is formed in the mounting hole, the contact pin comprises a needle and a main body, the needle penetrates through the annular step, the abutting member is in threaded engagement with the mounting hole, and the abutting member and the annular step are used for cooperatively clamping the main body.

8. The pull-type connector according to claim 7, further comprising a fastener, wherein a wire passing hole is formed in the abutting member, a plurality of clamping portions are circumferentially arranged at intervals at an end portion of the abutting member away from the annular step, the fastener is sleeved on the end portion of the abutting member away from the annular step, the clamping portions all extend into the fastener, and an inner hole diameter of the fastener is gradually reduced along a direction away from the annular step.

9. The pull-type connector according to claim 8, wherein the abutting member further comprises a threaded portion and a stopper portion, the threaded portion is provided on a side of the stopper portion away from the clamping portion, the threaded portion is threadedly engaged with the mounting hole, the stopper portion is adapted to abut against the handle, and the stopper portion is spaced apart from the guide member.

10. A pull-type connector according to any one of claims 1-9, wherein the distance between opposite side walls of the second channel section decreases in a direction away from the first channel section.