CN215470858U

CN215470858U - Pulling device

Info

Publication number: CN215470858U
Application number: CN202121318512.4U
Authority: CN
Inventors: 冯鹏君; 周唐汉; 曾泉锋
Original assignee: Shenzhen Junhao Engineering Co ltd
Current assignee: Shenzhen Junhao Engineering Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-01-11
Anticipated expiration: 2031-06-11

Abstract

The utility model is suitable for the field of connectors, and provides an extractor which is used for extracting a connector from a PCB (printed circuit board), wherein a splicing gap is formed between two end parts of the connector and the PCB, the extractor comprises a rack, a clamp, a control structure and a reset structure, the clamp is arranged on the rack and comprises a first extraction hook and a second extraction hook, the first extraction hook and the second extraction hook can move in the opposite direction or in the opposite direction to enable the clamp to be switched between a clamping state and an avoiding state, when the clamp is in the clamping state, the first extraction hook and the second extraction hook can be placed in the splicing gap, when the clamp is in the avoiding state, the distance between the first extraction hook and the second extraction hook can avoid the connector, the control structure is used for driving the first extraction hook and the second extraction hook to move in the opposite direction, and the reset structure is used for driving the first extraction hook and the second extraction hook to move in the opposite direction. The pulling device provided by the utility model can be suitable for an environment with a small inserting gap between the connector and the PCB and improve the convenience of the separation operation of the connector and the PCB.

Description

Pulling device

Technical Field

The utility model belongs to the technical field of connector assembly, and particularly relates to a pulling device.

Background

Referring to fig. 1 and 2, the connector is used to electrically connect two adjacent PCB boards. Because the connector size is less, when need pull out the connector from the PCB board, there is the inconvenient problem of staff's operation.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an extractor, which aims to solve the problem that the operation of separating a connector from a PCB is inconvenient.

In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

a pulling device is used for pulling a connector out of a PCB, inserting gaps are arranged between two end parts of the connector and the PCB, the pulling device comprises a rack, and a clamp, a control structure and a reset structure which are arranged on the rack, the clamp comprises a first pulling hook and a second pulling hook which are oppositely arranged, the first pulling hook and the second pulling hook can move in the opposite direction or in the opposite direction to enable the clamp to be switched between a clamping state and an avoiding state, when the clamp is in the clamping state, the first pulling hook and the second pulling hook can be respectively arranged in the inserting gaps at the two end parts of the connector, when the clamp is in the avoiding state, the distance between the first pulling hook and the second pulling hook can avoid the connector, the control structure is used for driving the first pulling hook and the second pulling hook to move in the opposite direction to enable the clamp to be in the avoiding state, the reset structure is elastically compressed when the clamp is in an avoiding state, and can drive the first pulling hook and the second pulling hook to move oppositely after external force disappears, so that the clamp is in a clamping state.

Optionally, the control structure can drive the first pulling hook and the second pulling hook to move in opposite directions simultaneously to enable the clamp to be in the avoiding state, and the reset structure can drive the first pulling hook and the second pulling hook to move in opposite directions simultaneously to enable the clamp to be in the clamping state.

Optionally, the control structure is movable up and down relative to the frame to switch between a first position and a second position, the control structure having a sloped guide surface; the first pulling hook and/or the second pulling hook is/are provided with a pressed surface matched with the guide surface;

when the control structure is located at the first position, the clamp is located at a clamping state, and when the control structure moves downwards from the first position to the second position, the guide surface presses the pressure-receiving surface and drives the first pulling hook and the second pulling hook to move back to back so that the clamp is located at an avoiding state.

Optionally, the control structure includes a pressure lever and lower pressure blocks disposed at two ends of the pressure lever and extending downward, and the lower surface of the lower pressure block is the guide surface; the first pulling hook and the second pulling hook are both provided with the pressed surfaces.

Optionally, the guide surface and the pressure receiving surface are arranged in parallel.

Optionally, the first pulling hook and the second pulling hook are provided with horizontally extending sliding grooves, and the rack is provided with clamping blocks matched with the sliding grooves.

Optionally, the sliding grooves are formed in the two side faces of the first pulling hook and the second pulling hook.

Optionally, the return structure is a spring.

Optionally, a positioning structure matched with the PCB or the connector is disposed on the lower surface of the frame.

Optionally, the frame includes support plate, handle, pillar, spacing post and stopper, the handle supplies the staff to grab and hold, the pillar is used for connecting the operation and with the support plate, spacing post has four, and establishes separately control structure's front and back both sides are in order to restrict control structure's the removal in front and back direction, the stopper has two and is located two respectively the inboard of briquetting down, in order to prescribe jointly control structure is in the removal of left and right sides direction, the stopper with the action bars prescribes jointly control structure is at the range of motion of up and down direction.

According to the pull-out opener provided by the utility model, the structure of the clamp is designed in a targeted manner according to the insertion gap between the connector and the PCB, and the first pull-out hook and the second pull-out hook act on the connector to replace manual operation. Because the first pulling hook and the second pulling hook can adjust the size according to the structure and the size of the connector, the problem that the connector is inconvenient to operate by hands due to small size or limited operation space is solved. First pulling out colludes and the second is pulled out and is colluded the mode that adopts linear movement and put into or leave the grafting space, compares in rotatory mode, can reduce the operating space that needs occupy in the upper and lower direction, and be applicable to the less condition in grafting space, avoids bumping other parts on the bad PCB board. Therefore, the pulling device provided by the utility model is suitable for an environment with a small inserting gap between the connector and the PCB and improves the convenience of the separation operation of the connector and the PCB.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of the connector of the present invention connected to a PCB;

FIG. 2 is a disassembled view of the connector and the PCB of the present invention;

fig. 3 is an operation diagram of the extractor according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view of the structure shown in FIG. 3;

fig. 5 is a disassembled schematic view of the extractor provided in the embodiment of the present invention;

FIG. 6 is a schematic diagram of the engagement of the clamp and the control structure in an embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating the fitting between the fixture and the fixture block according to the embodiment of the present invention;

fig. 8 is a schematic view of a rack in an embodiment of the utility model.

Wherein, in the figures, the respective reference numerals:

10. a pull-out device; 11. a frame; 111. a clamping block; 112. a carrier plate; 113. an operating handle; 114. a pillar; 115. a limiting column; 116. a limiting block; 105. a second housing hole; 106. avoiding holes; 107. positioning holes; 121. a first pulling hook; 122. second hook pulling; 101. a pressed surface; 103. a chute; 104. a first housing hole; 13. a control structure; 131. a pressure lever; 132. pressing the block; 102. a guide surface; 20. a connector; 21. a terminal; 22. an intermediate insulating member; 23. a side insulator; 202. an assembly hole; 201. inserting gaps; 30. a PCB board; 31. a female end; 32. and a positioning column.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined as follows: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-8, an exemplary extractor 10 provided herein is now described. The extractor 10 is used to extract the connector 20 from the PCB board 30.

Referring to fig. 1 and 2, the connector 20 is used to electrically connect two adjacent PCB boards 30. The connector 20 includes a plurality of terminals 21 arranged in sequence, and for convenience of description, the arrangement direction of the terminals 21 is defined as a left-right direction. Each terminal 21 is U-shaped and is connected and fixed by an intermediate insulator 22 and side insulators 23 located on the front and rear sides of the intermediate insulator 22. The side insulator 23 is provided with a fitting hole 202. The PCB 30 is provided with female terminals 31 for engaging with the terminals 21, and positioning posts 32 for engaging with the fitting holes 202.

During assembly, the assembling holes 202 are sleeved in the corresponding positioning columns 32, and the terminals 21 are inserted into the female terminals 31, so that the mechanical connection and the electrical connection between the connector 20 and the PCB 30 are realized.

When the hand is detached, the hand grips the front and rear end sides of the connector 20 and pulls it upward. The gripping operation by a human hand is inconvenient due to the small size of the connector 20. In addition, in the case where there is another structure on the side of the connector 20, the operation space is limited and manual operation is difficult.

The present embodiment provides a drawer 10 for pulling out the connector 20 from the PCB board 30. The connector 20 has a plug gap 201 between both ends thereof and the PCB 30, i.e., a gap between the intermediate insulator 22 and the PCB 30. The extractor 10 has a jig which can be inserted into the insertion space 201 and then the extractor 10 is moved upward, and the jig acts on the connector 20 to extract the connector 20 from the PCB board 30.

Specifically, referring to fig. 2 to 8, the extractor 10 includes a frame 11, and a clamp, a control structure 13 and a reset structure disposed on the frame 11, the clamp includes a first hook 121 and a second hook 122 disposed opposite to each other, the first hook 121 and the second hook 122 can move toward or away from each other to switch the clamp between a clamping state and an avoiding state, when the clamp is in the clamping state, the first hook 121 and the second hook 122 can be respectively inserted into the insertion gaps 201 at the two ends of the connector 20, and when the clamp is in the avoiding state, the distance between the first pulling hook 121 and the second pulling hook 122 can be free of the connector 20, the control structure 13 is used for driving the first pulling hook 121 and the second pulling hook 122 to move back and forth to enable the clamp to be in a free state, and the reset structure is elastically compressed when the clamp is in the free state and can drive the first pulling hook 121 and the second pulling hook 122 to move in opposite directions to enable the clamp to be in a clamping state after external force disappears.

Taking the illustration as an example, the first hook 121 and the second hook 122 are disposed left and right, and the control structure 13 is configured to drive the first hook 121 and the second hook 122 to move back to increase a distance between the first hook 121 and the second hook 122, where the distance is greater than a length of the connector 20 (the intermediate insulating member 22) in a left-right direction, so that the first hook 121 and the second hook 122 can cross the connector 20 to reach a horizontal position where the plugging gap 201 is located downward or cross the connector 20 from the horizontal position upward. At this time, the clamp is in an avoiding state, and the resetting structure is elastically compressed. After the external force disappears, the reset structure can drive the first hook 121 and the second hook 122 to move in opposite directions, so that the clamp is in a clamping state. The distance between the first hook 121 and the second hook 122 is smaller than the size of the connector 20 and can be placed in the insertion gap 201 at the two ends of the connector 20, so as to lift the whole extractor 10 upwards, and the first hook 121 and the second hook 122 press the connector 20 to drive the connector 20 to move upwards and further separate from the PCB 30.

In operation, the control structure 13 makes the clamp in the avoiding state, and then the whole extractor 10 moves downward from the upper side of the connector 20 until the first extraction hook 121 and the second extraction hook 122 reach the horizontal position of the insertion gap 201 between the connector 20 (the middle insulation member 22) and the PCB 30. Then, the action force of the control structure 13 on the clamp is released (the control structure 13 may be configured to release the action force on the clamp in an automatic resetting or manual resetting manner), and the first hook 121 and the second hook 122 move towards each other under the action of the reset structure and are placed in the insertion gap 201. Finally, the whole extractor 10 is lifted up, and the first extraction hook 121 and the second extraction hook 122 press against the connector 20 to drive the connector 20 to move upward and separate from the PCB 30.

According to the extractor 10 provided by the embodiment, the structure of the clamp is designed according to the insertion gap 201 between the connector 20 and the PCB 30, and the first hook 121 and the second hook 122 act on the connector 20 to replace manual operation. Since the first hook 121 and the second hook 122 can be adjusted in size according to the structure and size of the connector 20, the problem that the connector 20 is inconvenient for manual operation due to small size or limited operation space is solved. The first pulling hook 121 and the second pulling hook 122 are placed in or separated from the inserting gap 201 in a linear moving mode, and compared with a rotating mode, the operation space occupied in the up-down direction can be reduced, so that the inserting gap 201 is suitable for the condition that the inserting gap 201 is small, and other components on the PCB 30 are prevented from being damaged. Specifically, since the first hook 121 and the second hook 122 move linearly, the operating space occupied by the first hook 121 and the second hook 122 in the up-down direction is theoretically the thickness of the portion of the first hook 121 and the second hook 122 inserted into the insertion gap 201, in other words, an operator can design the thickness of the first hook 121 and the second hook 122 according to the size of the insertion gap 201, and the thickness can be very small when the strength is sufficient. The dimensions of the first hook 121 and the second hook 122 in the horizontal direction do not affect the vertical operation space, and the small-pitch environment can be applied. By adopting the rotation manner, the operation space occupied by the first hook 121 and the second hook 122 in the vertical direction is substantially the rotation radius thereof. Generally, to ensure the pulling effect of the first pulling hook 121 and the second pulling hook 122 on the connector 20, the horizontal dimension/the left-right dimension of the first pulling hook 121 and the second pulling hook 122 is significantly larger than the thickness dimension in the up-down direction, so that the space in the up-down direction required to be occupied by the rotating mode is larger. In the present embodiment, the connector 20 is small in size, and the insertion gap 201 between the connector and the PCB 30 is also small, so that the rotation manner is difficult to be applied.

Thus, the extractor 10 provided by the present embodiment is applicable to an environment where the insertion gap 201 between the connector 20 and the PCB 30 is small, and can improve the convenience of the separation operation between the connector 20 and the PCB 30.

The first hook 121 and the second hook 122 move in opposite directions or opposite directions, including the case where the first hook 121 is fixed relative to the frame 11 and the second hook 122 moves, including the case where the second hook 122 is fixed relative to the frame 11 and the first hook 121 moves, and including the case where both the first hook 121 and the second hook 122 move relative to the frame 11. In the present embodiment, the first hook 121 and the second hook 122 can both perform a linear motion in a horizontal direction with respect to the frame 11. Specifically, the control structure 13 drives the first hook 121 and the second hook 122 to move in opposite directions to each other to make the clamp in an avoiding state, and the reset structure can drive the first hook 121 and the second hook 122 to move in opposite directions to make the clamp in a clamping state. The first hook 121 and the second hook 122 move toward or away from each other at the same time, so that the center positions of the first hook 121 and the second hook 122 are kept unchanged. During the operation of the pulling-out device 10 to the connector 20, the center position of the pulling-out device 10 is fixed relative to the connector 20 and does not need to be adjusted. Compare in first pulling out that 121 is fixed and the second pulls out that hook 122 removes relative frame 11 or first pulling out 121 and the relative frame 11 of frame removes and the fixed setting of hook 122, this scheme can improve the convenience of opening the operation of pulling out and reduces the risk of colliding with to connector 20.

In this embodiment, referring to fig. 6, the control structure 13 can move up and down relative to the frame 11 to switch between a first position and a second position, and the control structure 13 has an inclined guide surface 102; the first hook 121 and/or the second hook 122 have a pressure receiving surface 101 cooperating with the guide surface 102; when the control structure 13 is at the first position, the clamp is in the clamping state, and when the control structure 13 moves downward from the first position to the second position, the guide surface 102 presses the pressure receiving surface 101 and drives the first hook 121 and the second hook 122 to move away from each other, so that the clamp is in the avoiding state.

In the case where both the first hook 121 and the second hook 122 are movable relative to the frame 11, the control mechanism 13 has two guide surfaces 102, and both the first hook 121 and the second hook 122 have pressure receiving surfaces 101, and the guide surfaces 102 are provided corresponding to the pressure receiving surfaces 101.

In this embodiment, the control structure 13 adopts a mechanical control manner, the clamp is driven to be switched from the clamping state to the avoiding state by the downward movement of the control structure 13, and the control structure 13 moves upward to release the acting force on the clamp. The up and down movement of the control structure 13 can be done manually or electrically.

The guide surface 102 of the control structure 13 and the pressure receiving surface 101 of the clamp convert the downward force of the control structure 13 into the force for horizontally moving the first hook 121 and/or the second hook 122, so that the structure can be simplified.

In another embodiment of the present application, referring to fig. 6, the control structure 13 includes a pressing rod 131, and a lower pressing block 132 disposed at two ends of the pressing rod 131 and extending downward, wherein a lower surface of the lower pressing block 132 is a guiding surface 102; the first hook 121 and the second hook 122 each have a pressure receiving surface 101. The pressing rod 131 is operated by a human hand, and an operator presses the pressing rod 131 to move the two pressing blocks 132 downwards and to make the first pulling hook 121 and the second pulling hook 122 move in opposite directions respectively. Simple structure and convenient operation. In the illustrated structure, the pressing rod 131 and the lower pressing block 132 are separate members and are fixedly connected by bolts. In other embodiments, the pressing rod 131 and the pressing block 132 can be provided in an integral structure.

In the structure shown in fig. 6, two pressing pieces 132 are disposed inside the first hooks 121 and the second hooks 122, and the guide surfaces 102 of the pressing pieces 132 are inclined outward and upward. In other embodiments, two pressing pieces 132 may be disposed outside the first hook 121 and the second hook 122, and correspondingly, the guide surface 102 of the pressing pieces 132 is inclined inward and upward.

Referring to fig. 6, the guide surface 102 and the pressure receiving surface 101 are arranged in parallel to improve the compactness of the structure and reduce the noise caused by the relative movement of the press block 132 and the jig.

In this embodiment, referring to fig. 4 and 5, the frame 11 limits the press rod 131 and the lower press block 132 to have only the freedom of moving up and down. The rack 11 includes a carrier plate 112, an operating handle 113, a support column 114, a limiting column 115 and a limiting block 116, wherein the operating handle 113 is held by a human hand, the support column 114 has two ends connected to the operating handle 113 to form a door-shaped frame, and the other end of the support column 114 is connected to the carrier plate 112. The control structure 13 (the strut 131 and the lower press block 132) is located in a portal frame, and the operating lever defines the maximum upward movement distance of the control structure 13. The four stoppers 115 are respectively disposed on the front and rear sides of the control structure 13 to limit the movement of the control structure 13 in the front and rear directions, the two stoppers 116 are respectively disposed on the inner sides of the two hold-down blocks 132 to limit the movement of the control structure 13 in the left and right directions, and the stoppers 116 are disposed right under the pressing rods 131 to limit the maximum downward movement distance of the control structure 13.

In the present embodiment, referring to fig. 5 and fig. 7, the linear movement of the first hook 121 and the second hook 122 relative to the frame 11 is realized by the cooperation of the sliding slot 103 and the latch 111, so as to simplify the structure. Specifically, the first pulling hook 121 and the second pulling hook 122 have a sliding slot 103 extending horizontally, and the rack 11 is provided with a latch 111 engaged with the sliding slot 103. The first hook 121 and the second hook 122 move away from each other in the horizontal direction under the combined action of the guide surface 102 of the control structure 13 and the latch 111, and move toward each other in the horizontal direction under the action of the reset structure. In other embodiments, the sliding groove 103 may be disposed on the frame 11, and the latch 111 may be disposed on the first hook 121 and the second hook 122.

Preferably, referring to fig. 7, the sliding grooves 103 are disposed on both sides of the first pulling hook 121 and the second pulling hook 122. Correspondingly, the two sides of the first pulling hook 121 are correspondingly provided with the fixture block 111, and the two sides of the first pulling hook 121 are limited by the fixture block 111, so that the stability of linear movement of the first pulling hook 121 is guaranteed, and shaking is avoided. Similarly, the two sides of the second pulling hook 122 are correspondingly provided with the fixture blocks 111, so as to be beneficial to ensuring the stability of the linear movement of the second pulling hook 122 and avoid shaking.

In the structure shown in fig. 8, the carrier plate 112 is provided with an avoidance hole 106 which penetrates up and down and avoids the first pulling hook 121 and the second pulling hook 122 from left to right, a through hole for the fixture block 111 to pass through is formed in the side surface of the carrier plate 112, and the fixture block 111 passes through the through hole and is clamped with the sliding groove 103. The latch 111 is nested with the carrier plate 112 to ensure the smooth assembly of the latch 111, the carrier plate 112 and the fixture.

In another embodiment of the present application, the return structure is a spring. The reset structures are two and are arranged corresponding to the first pulling hook 121 and the second pulling hook 122. Referring to fig. 4, the first hook 121 and the second hook 122 are formed with a first receiving hole 104 on the outer surface for receiving a spring, the rack 11/the carrier 112 is correspondingly formed with a second receiving hole 105 at the first receiving hole 104, the spring is disposed in the first receiving hole 104 and the second receiving hole 105, and two ends of the spring are respectively fixedly connected to the first hook 121/the second hook 122 and the rack 11. When the first hook 121 and the second hook 122 move away from each other, the spring is compressed, and after the external force disappears, the spring resets under the action of the elastic restoring force and drives the first hook 121 and the second hook 122 to move in opposite directions.

Preferably, the second receiving hole 105 is a through hole and has a female screw to be engaged with an adjusting screw (not shown). The adjusting screw is screwed into the second accommodating hole 105 from the outer side of the carrier plate 112, the end part of the spring located in the second accommodating hole 105 is abutted or fixedly connected with the adjusting screw, and the magnitude of the elastic restoring force applied to the clamp in the avoiding state is controlled by screwing or unscrewing the adjusting screw to adjust the compression amount of the spring.

In another embodiment of the present application, the bottom surface of the frame 11 is provided with a positioning structure for matching with the PCB board 30 or the connector 20. In the structure shown in fig. 8, the positioning structure is a positioning hole 107. The positioning hole 107 is opened on the lower surface of the carrier 112. The positioning holes 107 may be blind holes or through holes. Referring to fig. 2, the positioning holes 107 are disposed in cooperation with the positioning posts 32 on the PCB 30. The positioning holes 107 are correspondingly arranged on the positioning columns 32 on the existing PCB 30 to realize the positioning of the extractor 10, so as to simplify the structure. Other positioning structures may be used by those skilled in the art and are not intended to be limiting.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A pulling device is used for pulling a connector out of a PCB, and inserting gaps are arranged between two end parts of the connector and the PCB, and is characterized in that the pulling device comprises a rack, and a clamp, a control structure and a reset structure which are arranged on the rack, wherein the clamp comprises a first pulling hook and a second pulling hook which are oppositely arranged, the first pulling hook and the second pulling hook can move in the opposite direction or in the opposite direction to enable the clamp to be switched between a clamping state and an avoiding state, when the clamp is in the clamping state, the first pulling hook and the second pulling hook can be respectively arranged in the inserting gaps at the two end parts of the connector, when the clamp is in the avoiding state, the distance between the first pulling hook and the second pulling hook can avoid the connector, the control structure is used for driving the first pulling hook and the second pulling hook to move in the opposite direction to enable the clamp to be in the avoiding state, the reset structure is elastically compressed when the clamp is in an avoiding state, and can drive the first pulling hook and the second pulling hook to move oppositely after external force disappears, so that the clamp is in a clamping state.

2. The extractor according to claim 1, wherein the control structure can drive the first hook and the second hook to move toward each other to make the fixture in the avoiding state, and the reset structure can drive the first hook and the second hook to move toward each other to make the fixture in the clamping state.

3. The extractor of claim 1, wherein said control structure is movable up and down relative to said frame to transition between a first position and a second position, said control structure having a sloped guide surface; the first pulling hook and/or the second pulling hook is/are provided with a pressed surface matched with the guide surface;

4. The extractor of claim 3, wherein said control structure comprises a pressing rod, and a lower pressing block disposed at two ends of said pressing rod and extending downward, and a lower surface of said lower pressing block is said guiding surface; the first pulling hook and the second pulling hook are both provided with the pressed surfaces.

5. The extractor of claim 3 wherein said guide surface and said compression surface are disposed in parallel.

6. The extractor according to claim 1, wherein said first extracting hook and said second extracting hook have horizontally extending sliding grooves, and said frame has a locking block engaged with said sliding grooves.

7. The extractor according to claim 6, wherein said sliding grooves are disposed on both sides of said first extracting hook and said second extracting hook.

8. The extractor according to claim 4, wherein said frame includes a carrier plate, an operating handle, four supporting posts, four limiting posts and two limiting blocks, said operating handle is held by a human hand, said supporting posts are used for connecting said operating handle and said carrier plate, said four limiting posts are respectively disposed at the front and rear sides of said control structure to limit the movement of said control structure in the front and rear directions, said two limiting blocks are respectively disposed at the inner sides of said two lower pressing blocks to jointly limit the movement of said control structure in the left and right directions, and said limiting blocks and said operating rod jointly limit the movement range of said control structure in the up and down directions.

9. The extractor of any one of claims 1 to 7, wherein said return structure is a spring.

10. The extractor of any one of claims 1 to 7, wherein a lower surface of said frame is provided with a positioning structure for mating with said PCB or said connector.