Limit switch tooling, limit force detection device and system

Abstract

This application relates to the field of vehicle technology, specifically to a limiter fixture, a limiter force detection device and system for the limiter fixture. The limiter force detection device includes a mounting base, a pressure rod assembly, a pressure detection assembly, a first base, and a second base. The pressure rod assembly includes a rod body, a first pressure box, and a second pressure box. One end of the rod body is rotatably connected to the mounting base. Both the first and second pressure boxes are fixed to the rod body. The first pressure box is used to connect with the connecting piece; the second pressure box is used to connect with the second end of the pull rod. Through the structural design of the mounting base, rod body, first pressure box, and second pressure box, the limiter force detection device forms a force-saving lever between the mounting base and the pressure rod assembly during the detection process. Furthermore, through its cooperation with the limiter fixture, it can quickly determine whether the closing and opening forces of the limiter fixture are within the required range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a limiter tool, a limiter tool limiting force detection device and system. BACKGROUND

[0002] In the painting process of an automobile, in order to efficiently utilize the space of a production site, a white car usually adopts a four-door closed posture for conveying, but the installation of parts in the car, extrusion, paint spraying and defect repair all require the four doors to be opened and stabilized in an open state. Based on this, a limiter tool is usually used, which is installed on the four doors and connected to the existing nut of the A-pillar or B-pillar by bolts, providing sufficient limiting force for the four doors during conveying, stabilizing the four doors in the required open or closed posture, and preventing the limiting position of the four doors from changing when the conveying shakes and the car body rotates. In order to realize the limiting function of the limiter tool and have sufficient limiting force, the structure of the limiter tool is usually complex, paint mist enters the limiter tool during paint spraying, paint slag and sundries are mixed into the limiter tool during cleaning of the limiter tool, and the repeated use of the limiter tool may cause the limiting function to fail or weaken, thereby causing the closing force and opening force of the limiter tool to fail to meet the use requirements. Therefore, it is necessary to detect the closing force and opening force of the limiter tool before use to know whether it meets the requirements. SUMMARY

[0003] One of the purposes of the present application is to provide a limiter tool limiting force detection device which can realize the purpose of detecting the closing force and opening force of the limiter tool; the second purpose of the present application is to provide a limiter tool; and the third purpose of the present application is to provide a limiter tool limiting force detection system.

[0004] In order to achieve the above-mentioned purposes, in a first aspect, the present application provides a limiter tool limiting force detection device, the limiter tool comprising a pull rod, a clamping assembly and a connecting piece, the clamping assembly being in clamping cooperation with the pull rod, the pull rod having a first end and a second end arranged oppositely, and the connecting piece being arranged at the first end of the pull rod. The limiter tool limiting force detection device comprises:

[0005] a mounting seat;

[0006] a pressure rod assembly comprising a rod body, a first pressure box and a second pressure box, one end of the rod body being rotatably connected with the mounting seat, the first pressure box and the second pressure box being both fixed on the rod body, the first pressure box being used for cooperating with the connecting piece, and the second pressure box being used for cooperating with the second end of the pull rod;

[0007] a pressure detection assembly comprising a bearing table arranged below the pressure rod assembly;

[0008] The first base has one end placed on the bearing table and the other end connected with the card joint component on the side away from the connecting piece.

[0009] The second base has one end placed on the bearing table and the other end connected with the card joint component on the side facing the connecting piece.

[0010] Further, the first base comprises a first bottom plate and a first box body with a first accommodating cavity, the first accommodating cavity is open at the end away from the first bottom plate, the first box body comprises a first side wall and a second side wall arranged oppositely, the first side wall is formed with a first limiting plate and a second limiting plate protruding into the first accommodating cavity, and the second side wall is formed with a third limiting plate and a fourth limiting plate protruding into the first accommodating cavity.

[0011] Further, the first limiting plate and the second limiting plate are formed with a first guide groove, and the third limiting plate and the fourth limiting plate are formed with a second guide groove.

[0012] Further, the first base further comprises a first reinforcing rib plate, and the first reinforcing rib plate is connected with the first box body and the first bottom plate respectively.

[0013] Further, the second base comprises a second bottom plate and a second box body with a second accommodating cavity, the second box body has a support plate at the end away from the second bottom plate, and the support plate is provided with a through hole penetrating into the second accommodating cavity.

[0014] Further, the second base further comprises a second reinforcing rib plate, and the second reinforcing rib plate is connected with the second box body and the second bottom plate respectively.

[0015] Further, the mounting seat comprises a mounting plate, an ear plate, a pin shaft and a fixing piece, the ear plate is provided with two ear plates parallel to each other and perpendicular to the mounting plate, the pin shaft is fixed between the two ear plates, the rod body is rotationally connected with the pin shaft, and the fixing piece is used to fix the mounting plate at a to-be-mounted position.

[0016] Further, the pressing rod assembly further comprises a handle, and the handle is located at the end of the rod body away from the mounting seat.

[0017] Further, the pressure detection assembly comprises an electronic scale and an electronic scale display connected with each other, and the bearing table is arranged on the electronic scale.

[0018] To achieve the above object, in a second aspect, the embodiment of the present application provides a limit stopper tool, which is used in cooperation with the limit force detection device provided in the first aspect of the embodiment of the present application, and the limit stopper tool comprises a pull rod, a clamping assembly and a connecting piece, the clamping assembly is in clamping cooperation with the pull rod, the pull rod has a first end and a second end arranged oppositely, and the connecting piece is arranged at the first end of the pull rod.

[0019] To achieve the above object, in a third aspect, the embodiment of the present application provides a limit force detection system, which comprises the limit force detection device provided in the first aspect of the embodiment of the present application and the limit stopper tool provided in the second aspect of the embodiment of the present application, and the limit force detection device is used for detecting the limit force of the limit stopper tool.

[0020] The technical scheme provided by the embodiments of the present application has the following beneficial effects:

[0021] (1) The limit force detection device forms a form of force-saving lever through the structural design of the mounting seat, the rod body, the first pressure box and the second pressure box during the detection process, and through cooperation with the limit stopper tool, it can quickly determine whether the closing force and the opening force of the limit stopper tool are within the required range.

[0022] (2) The limit stopper tool can provide sufficient limit force for the four doors during the conveying process, and the four doors are stably kept in the required opening or closing posture, and the limit position of the four doors will not change when the conveying shakes and the vehicle body rotates. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 An explosion structure schematic diagram of the limit stopper tool provided by the embodiment of the present application is shown;

[0024] Figure 2 A structure schematic diagram of the limit stopper tool provided by the embodiment of the present application and the connection with the door is shown;

[0025] Figure 3 A structure schematic diagram of the limit stopper tool provided by the embodiment of the present application for door limiting is shown;

[0026] Figure 4 A structure schematic diagram of the limit force detection device provided by the embodiment of the present application is shown Figure 1 ;

[0027] Figure 5 A structure schematic diagram of the limit force detection device provided by the embodiment of the present application is shown Figure 2 ;

[0028] Figure 6 A structure schematic diagram of the mounting seat in the limit force detection device provided by the embodiment of the present application is shown;

[0029] Figure 7 Fig. 1 shows a structural schematic diagram of a first base in a limiting force detection device provided by an embodiment of the present application;

[0030] Figure 8 Fig. 2 shows a structural schematic diagram of a second base in a limiting force detection device provided by an embodiment of the present application;

[0031] Figure 9 Fig. 3 shows an assembly relationship schematic diagram of the first base and a limiter tool when the limiting force detection device performs closing force detection;

[0032] Figure 10 Fig. 4 shows an assembly relationship schematic diagram of the first pressing box and the limiter tool when the limiting force detection device performs closing force detection;

[0033] Figure 11 Fig. 5 shows an assembly relationship schematic diagram of the second base and the limiter tool when the limiting force detection device performs opening force detection;

[0034] Figure 12 Fig. 6 shows an assembly relationship schematic diagram of the second pressing box and the limiter tool when the limiting force detection device performs opening force detection.

[0035] In the above embodiments, the limiting force detection device provided by the present application can be used for detecting the closing force and the opening force of the vehicle door.

[0036] 100, limiter tool;

[0037] 110, pull rod; 111, first limiting groove; 112, second limiting groove;

[0038] 120, clamping assembly; 121, fixed plate; 1211, first fixed surface; 1212, second fixed surface; 1213, first fixed piece; 1214, second fixed piece; 122, first sleeve; 123, first limiting piece; 124, first elastic piece; 125, first plug; 126, second sleeve; 127, second limiting piece; 128, second elastic piece; 129, second plug;

[0039] 130, connecting piece; 131, locking hole;

[0040] 140, limiting block;

[0041] 200, vehicle door; 300, A-pillar;

[0042] 400, mounting seat; 410, mounting plate; 420, ear plate; 430, pin shaft; 440, fastener; 441, M10 nut; 442, M10 expansion bolt;

[0043] 500, pressure rod assembly; 510, rod body; 520, first pressing box; 521, first cavity; 530, second pressing box; 531, second cavity; 540, handle;

[0044] 600, pressure detection assembly; 601, bearing table; 610, electronic scale; 620, electronic scale display;

[0045] 700, first base; 710, first bottom plate; 720, first box body; 721, first containing cavity; 722, first side wall; 723, second side wall; 724, first limiting plate; 725, second limiting plate; 726, third limiting plate; 727, fourth limiting plate; 728, first guide slot; 729, second guide slot; 730, first reinforcing rib plate;

[0046] 800, second base; 810, second bottom plate; 820, second box body; 821, first containing cavity; 822, support plate; 823, through hole; 824, first avoiding hole; 825, second avoiding hole; 830, second reinforcing rib plate;

[0047] 900, wall. DETAILED DESCRIPTION

[0048] The present application is described and explained with additional specificity and detail through the use of the accompanying drawings in which:

[0049] It should be noted that the drawings included herewith are included merely for purposes of illustration and are not intended to limit the scope of the present application. The drawings are in fact, deceptively simple depictions of the inventive concept merely to simplify the present description and are not intended to be restrictive.

[0050] Reference Figure 1As shown, the embodiment of the present application provides a stopper tool 100, the main structure of the stopper tool 100 includes a pull rod 110, a clamping assembly 120 and a connecting piece 130, wherein the clamping assembly 120 is clamped with the pull rod 110, the pull rod 110 has a first end and a second end arranged oppositely, and the connecting piece 130 is arranged at the first end of the pull rod 110. The clamping assembly 120 includes a fixed plate 121, a first sleeve 122, a first limiting piece 123, a first elastic piece 124, a first plug 125, a second sleeve 126, a second limiting piece 127, a second elastic piece 128 and a second plug 129, the pull rod 110 penetrates through the fixed plate 121, that is, the fixed plate 121 is sleeved outside the pull rod 110, the fixed plate 121 can reciprocate along the axis direction of the pull rod 110, the fixed plate 121 has a first fixed surface 1211 facing the first end of the pull rod 110 and a second fixed surface 1212 facing the second end of the pull rod 110, the first sleeve 122 and the second sleeve 126 are both fixed on the second fixed surface 1212, the first sleeve 122 and the second sleeve 126 are coaxial and are respectively located on both sides of the pull rod 110, and the axial end of the first sleeve 122 and the axial end of the second sleeve 126 are both opposite to the pull rod 110.

[0051] The first limiting piece 123 is slidingly arranged in the first sleeve 122, the first plug 125 is used for blocking one end of the first sleeve 122 away from the pull rod 110, the first elastic piece 124 is arranged in the first sleeve 122 and located between the first plug 125 and the first limiting piece 123, under the action of the first elastic piece 124, the first limiting piece 123 always has a tendency to press on the pull rod 110; the second limiting piece 127 is slidingly arranged in the second sleeve 126, the second plug 129 is used for blocking one end of the second sleeve 126 away from the pull rod 110, the second elastic piece 128 is arranged in the second sleeve 126 and located between the second plug 129 and the second limiting piece 127, under the action of the second elastic piece 128, the second limiting piece 127 always has a tendency to press on the pull rod 110. The first elastic piece 124 and the second elastic piece 128 are preferably helical springs, and the first limiting piece 123 and the second limiting piece 127 are preferably steel balls. The first limiting groove 111 close to the first end and the second limiting groove 112 close to the second end are arranged on the pull rod 110, the first limiting groove 111 is provided with two and symmetrically distributed on both sides of the pull rod 110, and the second limiting groove 112 is provided with two and symmetrically distributed on both sides of the pull rod 110. When the clamping assembly 120 is located at the first limiting groove 111, the first limiting piece 123 is clamped into the first limiting groove 111 on one side under the action of the first elastic piece 124, and the first limiting piece 123 is clamped in the first sleeve 122 and the first limiting groove 111 at the same time, the second limiting piece 127 is clamped into the first limiting groove 111 on the other side under the action of the second elastic piece 128, and the second limiting piece 127 is clamped in the second sleeve 126 and the first limiting groove 111 at the same time, so that the clamping assembly 120 and the pull rod 110 are clamped and matched at the first limiting groove 111; when the clamping assembly 120 is located at the second limiting groove 112, the first limiting piece 123 is clamped into the second limiting groove 112 on one side under the action of the first elastic piece 124, and the first limiting piece 123 is clamped in the first sleeve 122 and the second limiting groove 112 at the same time, the second limiting piece 127 is clamped into the second limiting groove 112 on the other side under the action of the second elastic piece 128, and the second limiting piece 127 is clamped in the second sleeve 126 and the second limiting groove 112 at the same time, so that the clamping assembly 120 and the pull rod 110 are clamped and matched at the second limiting groove 112.

[0052] In use, as Figures 1-3As shown, the position limiter tool 100 is connected to the A-pillar 300 or B-pillar of the automobile through the connecting piece 130 and is fixed to the door 200 of the automobile through the mounting plate 410. When the door 200 is slowly opened and closed, the pull rod 110 is forced to slide in the position limiter tool 100 relative to the first limiting piece 123 and the second limiting piece 127 in the clamping assembly 120. When the first limiting groove 111 on the pull rod 110 slides to the position of the first limiting piece 123 and the second limiting piece 127, the first limiting piece 123 and the second limiting piece 127 are stopped in the first limiting groove 111 of the pull rod 110 under the action of the elastic force, thereby limiting the door 200 in the first state. When the second limiting groove 112 on the pull rod 110 slides to the position of the first limiting piece 123 and the second limiting piece 127, the first limiting piece 123 and the second limiting piece 127 are stopped in the second limiting groove 112 of the pull rod 110 under the action of the elastic force, thereby limiting the door 200 in the second state. Of course, more limiting grooves can be provided on the pull rod 110, so that the opening state of the door 200 can be limited in multiple different positions. In the above embodiment, the first limiting groove 111 and the second limiting groove 112 are each provided with two, corresponding to the first limiting piece 123 and the second limiting piece 127 on both sides, and can be limited and connected from both sides at the same time, with sufficient limiting force and improved limiting effect.

[0053] In some embodiments, the first plug 125 is screwed with the inner wall of the first sleeve 122, and the rotation amount of the first plug 125 in the first sleeve 122 can be adjusted by rotating the first plug 125, thereby changing the deformation amount of the first elastic piece 124, so that the elastic force received by the first limiting piece 123 can be adjusted by the first plug 125, thereby achieving the purpose of adjusting the limiting force. Similarly, the second plug 129 is screwed with the inner wall of the second sleeve 126, and the rotation amount of the second plug 129 in the second sleeve 126 can be adjusted by rotating the second plug 129, thereby changing the deformation amount of the second elastic piece 128, so that the elastic force received by the second limiting piece 127 can be adjusted by the second plug 129, thereby achieving the purpose of adjusting the limiting force.

[0054] In some embodiments, the connecting piece 130 is rotationally connected with the pull rod 110, providing a rotation degree of freedom in the door 200 limiting process. The connecting piece 130 is provided with a locking hole 131, and the connecting piece 130 can be fixed to the A-pillar 300 or B-pillar of the automobile by passing an M6 butterfly bolt through the locking hole 131.

[0055] In some embodiments, the first fixing surface 1211 of the fixing plate 121 is provided with a first fixing member 1213 and a second fixing member 1214 protruding therefrom, the first fixing member 1213 and the second fixing member 1214 are respectively located on two sides of the pull rod 110, two mounting holes are formed on the automobile door 200, and the first fixing member 1213 and the second fixing member 1214 are respectively matched with the two mounting holes to complete the fixing of the fixing plate 121 and the automobile door 200. Optionally, the first fixing member 1213 and the second fixing member 1214 are both screw rods, the screw rod is penetrated through the fixing hole from one side of the mounting hole, and the screw rod is fastened with the nut from the other side; optionally, the first fixing member 1213 is a hook, the specific shape of the hook can be L-shaped or approximately L-shaped, and the second fixing member 1214 is a bolt, in the assembly process, the hook of the first fixing member 1213 is first penetrated through one mounting hole, and the bolt of the second fixing member 1214 is penetrated through the other mounting hole, the hook can complete the limiting and fixing function by using the bent shape, and only the bolt of the second fixing member 1214 needs to be locked by the nut, so that the assembly efficiency is improved.

[0056] The position limiter tool 100 provided by the embodiment of the present application can provide sufficient limiting force for the four doors during the vehicle body conveying process, and can stabilize the four doors in the required opening or closing posture, and the four doors will not change the limiting position during conveying vibration and vehicle body rotation.

[0057] In the above embodiment, the spring and the steel ball of the position limiter tool 100 are in a semi-closed structure of the sleeve, during the paint spraying process, paint mist enters the first sleeve 122 and the second sleeve 126, and the paint mist attachment will cause the spring to be stuck, resulting in failure or weakening of the limiting function. In addition, paint residues and sundries enter the first sleeve 122 and the second sleeve 126 during the cleaning process of the position limiter tool 100, and repeated use will also cause the limiting function of the position limiter tool 100 to fail or weaken, thereby causing the closing force and the opening force of the position limiter tool 100 to be unable to meet the use requirements. Therefore, it is necessary to detect the closing force and the opening force of the position limiter tool 100 before use to know whether it meets the requirements, and the embodiment of the present application also provides a limiting force detection device for detecting the limiting force of the position limiter tool 100 in the above embodiment of the present application.

[0058] As Figures 5-8As shown, the structure of the limiting force detection device of the stopper tool 100 provided by the embodiments of the present application mainly comprises a mounting seat 400, a pressure rod assembly 500, a pressure detection assembly 600, a first base 700 and a second base 800, wherein: the pressure rod assembly 500 comprises a rod body 510, a first pressure box 520 and a second pressure box 530, one end of the rod body 510 is rotationally connected with the mounting seat 400, the first pressure box 520 and the second pressure box 530 are both fixed on the rod body 510, the first pressure box 520 is used for being connected with the connecting piece 130 in cooperation, and the second pressure box 530 is used for being connected with the second end of the pull rod 110 in cooperation; the pressure detection assembly 600 comprises a bearing table 601 arranged below the pressure rod assembly 500; one end of the first base 700 is used for being placed on the bearing table 601, and the other end is used for being connected with one side of the clamping assembly 120 away from the connecting piece 130 in cooperation; one end of the second base 800 is used for being placed on the bearing table 601, and the other end is used for being connected with one side of the clamping assembly 120 towards the connecting piece 130 in cooperation.

[0059] In the above embodiment, the mounting seat 400 is used for being fixed at a to-be-installed position in the environment, for example, the mounting seat 400 can be fixed on a wall 900. As a specific exemplary embodiment of the mounting seat 400, as shown in Figure 6 As shown, the mounting seat 400 comprises a mounting plate 410, an ear plate 420, a pin shaft 430 and a fastener 440, two ear plates 420 are arranged in parallel and are both connected perpendicularly on the mounting plate 410, the pin shaft 430 is fixed between the two ear plates 420, the rod body 510 is rotationally connected with the pin shaft 430, and the fastener 440 is used for fixing the mounting plate 410 on the wall 900. The mounting plate 410, the ear plate 420 and the pin shaft 430 are preferably connected together by welding, so as to improve the structural strength and stability, and the fastener 440 can be composed of an M10 nut 441 and an M10 expansion bolt 442. A plurality of bolt through holes are formed on the mounting plate 410, the M10 expansion bolt 442 is passed through the bolt through hole and is then screwed into the wall 900, and then the M10 nut 441 is locked, so that the M10 expansion bolt 442 is anchored in the wall 900, thereby realizing the fixation of the mounting seat 400 on the wall 900. The M10 nut 441 and the M10 expansion bolt 442 can be correspondingly provided with multiple groups, for example, as shown in the drawings, the M10 nut 441 and the M10 expansion bolt 442 are both provided with two groups and are arranged on the two sides of the ear plate 420, so as to improve the fixation effect. Figure 6 As shown, the M10 nut 441 and the M10 expansion bolt 442 are both provided with two groups and are arranged on the two sides of the ear plate 420, so as to improve the fixation effect.

[0060] One end of the rod body 510 of the pressing rod assembly 500 is rotationally connected with the pin shaft 430, the axis of the pin shaft 430 is perpendicular to the extending direction of the rod body 510, in use, the axis of the pin shaft 430 is preferably horizontally arranged, the rod body 510 can rotate around the pin shaft 430 in a vertical plane, the first pressing box 520 and the second pressing box 530 are arranged in the middle region of the rod body 510.

[0061] As shown in Figure 4 and 5 , the bearing table 601 of the pressure detection assembly 600 is placed on a stable plane, the first base 700 or the second base 800 is placed on the bearing table 601; taking the first base 700 as an example for description, as shown in Figure 4 , Figure 9 and Figure 10 , the first base 700 is placed on the bearing table 601, the rod body 510 is arranged above or below the first base 700, the position of the first base 700 is adjusted so that the first pressing box 520 is directly above the first base 700, the limit stopper tool 100 is clamped between the first pressing box 520 and the first base 700, specifically, the clamping assembly 120 of the limit stopper tool 100 is clamped in the first limit slot 111 or the second limit slot 112, the connecting piece 130 of the limit stopper tool 100 is pressed in the first pressing box 520, the first pressing box 520 is formed with a first cavity 521 with an opening downward, the connecting piece 130 is pressed in the first cavity 521, the second fixing surface 1212 of the fixing plate 121 of the limit stopper tool 100 is pressed on the first base 700, by pressing the rod body 510 downward at the end away from the mounting base 400, the limit stopper tool 100 clamped between the first pressing box 520 and the first base 700 is pressed, at this time, the limit force of the limit stopper tool 100 is in a closing force mode, the reference range of the limit force of the limit stopper tool 100 can be obtained through the pressure detection assembly 600; taking the second base 800 as an example for description, as shown in Figure 5 , Figure 11 and Figure 12As shown, the second base 800 is placed on the bearing table 601, the rod body 510 is arranged above and below the second base 800, the position of the second base 800 is adjusted so that the second pressure box 530 is directly above the second base 800, the stopper tool 100 is clamped between the second pressure box 530 and the second base 800, specifically, the clamping assembly 120 of the stopper tool 100 is clamped in the first limiting groove 111 or the second limiting groove 112, the second end of the pull rod 110 of the stopper tool 100 is pressed in the second pressure box 530, the second pressure box 530 is formed with a second cavity 531 with an opening downward, the second end of the pull rod 110 is pressed in the second cavity 531, the first fixing surface 1211 of the fixing plate 121 of the stopper tool 100 is pressed on the second base 800, by pressing the rod body 510 downward at the end of the rod body 510 away from the mounting seat 400, the stopper tool 100 clamped between the second pressure box 530 and the second base 800 is pressed, compared with the previous closing force detection mode, the placement direction of the stopper tool 100 here is upside down, at this time the limiting force of the stopper tool 100 is the opening force, and the limiting force reference range of the stopper tool 100 can be obtained through the pressure detection assembly 600.

[0062] In the embodiments of the application, through the structural design of the mounting seat 400, the rod body 510, the first pressure box 520 and the second pressure box 530, the mounting seat 400 and the pressure rod assembly 500 form a form of a labor-saving lever during detection, and through cooperation with the stopper tool 100, whether the closing force and the opening force of the stopper tool 100 are within the required range can be quickly obtained.

[0063] In some embodiments, as Figure 7 and Figure 9As shown, the first base 700 includes a first base plate 710 connected to each other and a first box body 720 having a first receiving cavity inside. The first receiving cavity has an opening at one end away from the first base plate 710. The first box body 720 includes a first side wall 722 and a second side wall 723 disposed opposite to each other. A first limiting plate 724 and a second limiting plate 725 protruding into the first receiving cavity are formed on the first side wall 722. A third limiting plate 726 and a fourth limiting plate 727 protruding into the first receiving cavity are formed on the second side wall 723. The end faces of the first limiting plate 724, the second limiting plate 725, the third limiting plate 726, and the fourth limiting plate 727 are flush with the end face of the first box 720, and are all used to abut against the second fixing surface 1212 of the fixing plate 121. The first limiting plate 724, the second limiting plate 725, the third limiting plate 726, and the fourth limiting plate 727 increase the area of ​​the abutting end faces, improving the stability of the connection between the first box 720 and the fixing plate 121. The opening of the first receiving cavity is used to avoid the limiter fixture 1. The structure located between the fixed plate 121 and the second end of the pull rod 110 includes a first sleeve 122, a second sleeve 126 and a portion of the pull rod 110. When the end face of the first housing 720 abuts against the second fixed surface 1212, the first sleeve 122 enters between the first limiting plate 724 and the third limiting plate 726, and the second sleeve 126 enters between the second limiting plate 725 and the fourth limiting plate 727.

[0064] In some implementations, such as Figure 1 and Figure 9 As shown, a limiting block 140 is formed on the pull rod 110 of the limiting fixture 100. Two limiting blocks 140 are provided and are respectively located on both sides of the pull rod 110. The line connecting the two limiting blocks 140 is perpendicular to the axis of the first sleeve 122 and the second sleeve 126. A longitudinally extending first guide groove 728 is formed between the first limiting plate 724 and the second limiting plate 725. A longitudinally extending second guide groove 729 is formed between the third limiting plate 726 and the fourth limiting plate 727. During the process of the limiting fixture 100 being inserted into the first receiving cavity, the two limiting blocks 140 slide and engage with the first guide groove 728 and the second guide groove 729 respectively, thereby limiting the assembly of the limiting fixture 100 and the first box 720 and improving the assembly speed and accuracy.

[0065] In some implementations, such as Figure 7As shown, the orthographic projection of the first box 720 is completely located within the first base plate 710, meaning the surface of the first base plate 710 is larger than the cross-section of the first box 720. The large area of ​​the first base plate 710 achieves stable contact with the support platform 601. The first base 700 also includes a first reinforcing rib 730, which connects the first box 720 and the first base plate 710 respectively. Specifically, the first reinforcing rib 730 connects the outer side of the first box 720 and the upper surface of the first base plate 710 respectively. The first reinforcing rib 730 can improve the structural strength of the first base 700.

[0066] In some implementations, such as Figure 8 and 11 As shown, the second base 800 includes a second base plate 810 connected to each other and a second housing 820 having a second receiving cavity inside. The second housing 820 has a support plate 822 at the end away from the second base plate 810. The support plate 822 has a through hole 823 extending into the second receiving cavity. The support plate 822 is used to abut against the first fixing surface 1211 of the fixing plate 121. The support plate 822 increases the contact area, improving the stability of the connection between the second housing 820 and the fixing plate 121. The through hole 823 is used to avoid the structure of the limiter fixture 100 located between the fixing plate 121 and the connector 130. In this state, the structure between the fixing plate 121 and the connector 130 includes the connector 130, the first fixing member 1213, the second fixing member 1214, and a portion of the pull rod 110. With the support plate 822 abutting against the first fixing surface 1211, the connection... Part 130 and part of the pull rod 110 extend into the second receiving cavity through the through hole 823. In order to avoid the first fixing part 1213 and the second fixing part 1214, a first clearance hole 824 and a second clearance hole 825 are also provided on the support plate 822. During the process of the limiter tooling 100 and the second box 820, the cooperation of the first fixing part 1213 with the first clearance hole 824 and the cooperation of the second fixing part 1214 with the second clearance hole 825 can also assist in the limiting of the limiter tooling 100 and the second box 820 during the assembly process, and improve the assembly speed and accuracy.

[0067] In some implementations, such as Figure 8As shown, the orthographic projection of the second box 820 is completely located within the second base plate 810, meaning the surface of the second base plate 810 is larger than the cross-section of the second box 820. The large area of ​​the second base plate 810 achieves stable contact with the support platform 601. The second base 800 also includes a second reinforcing rib 830, which connects the second box 820 and the second base plate 810 respectively. Specifically, the second reinforcing rib 830 connects the outer side of the second box 820 and the upper surface of the second base plate 810 respectively. The second reinforcing rib 830 can improve the structural strength of the second base 800.

[0068] In some implementations, such as Figure 4 and 5 As shown, the lever assembly 500 also includes a handle 540 located at the end of the lever body 510 away from the mounting base 400. The handle 540 is for the operator to grip, providing a point of force and gripping friction. The handle 540 is made of materials including, but not limited to, rubber, plastic, and wood.

[0069] The pressure detection component 600 can be various weighing devices and pressure sensors. For example, in some embodiments, the pressure detection component 600 can be an interconnected electronic scale 610 and an electronic scale display 620, with the support platform 601 mounted on the electronic scale 610. The weight obtained after weighing by the electronic scale 610 can be displayed on the electronic scale display 620, and the weight information can be converted into corresponding pressure information, thereby realizing the function of force measurement. Using the electronic scale 610 as the pressure detection component 600 to record the maximum pressure can effectively reduce costs.

[0070] The limiting force detection device and limiter fixture 100 of the embodiments of this application may also include other necessary components or structures, and the corresponding arrangement and connection relationships can be referred to the prior art. The connection relationships, operation and working principles of the unmentioned structures are known to those skilled in the art and will not be described in detail here.

[0071] This application protects a limiting force detection system, which includes a limiting force detection device and a limiting device fixture. The limiting force detection device is the same as the one provided in this application, and the limiting device fixture is also the same as the one provided in this application. The limiting force detection device is used to detect the limiting force of the limiting device fixture. Specific implementation schemes for the limiting force detection device and the limiting device fixture are described above and will not be repeated here.

[0072] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0073] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A stop force detection device of a stopper tool, the stopper tool (100) comprising a pull rod (110), a clamping assembly (120) and a connecting piece (130), the clamping assembly (120) being clamped with the pull rod (110), the pull rod (110) having a first end and a second end arranged oppositely, the connecting piece (130) being arranged at the first end of the pull rod (110), characterized in that, The limiting force detection device comprises: a mounting seat (400); a pressure rod assembly (500) comprising a rod body (510), a first pressure box (520) and a second pressure box (530), one end of the rod body (510) being rotationally connected with the mounting seat (400), the first pressure box (520) and the second pressure box (530) being both fixed on the rod body (510), the first pressure box (520) being used for cooperating with the connecting piece (130), and the second pressure box (530) being used for cooperating with a second end of the pull rod (110); a pressure detection assembly (600) comprising a bearing table (601) arranged below the pressure rod assembly (500); a first base (700) having one end placed on the bearing table (601) and the other end used for cooperating with one side of the clamping assembly (120) away from the connecting piece (130); a second base (800) having one end placed on the bearing table (601) and the other end used for cooperating with one side of the clamping assembly (120) toward the connecting piece (130).

2. The position-limiting force detecting apparatus according to claim 1, wherein The first base (700) comprises a first bottom plate (710) and a first box body having a first containing cavity, the first containing cavity being open at one end away from the first bottom plate (710), the first box body comprising a first side wall (722) and a second side wall (723) arranged oppositely, the first side wall (722) being formed with a first limiting plate (724) and a second limiting plate (725) protruding into the first containing cavity, and the second side wall (723) being formed with a third limiting plate (726) and a fourth limiting plate (727) protruding into the first containing cavity.

3. The apparatus according to claim 2, wherein A first guide groove (728) is formed between the first limiting plate (724) and the second limiting plate (725), and a second guide groove (729) is formed between the third limiting plate (726) and the fourth limiting plate (727).

4. The apparatus according to claim 2, wherein The first base (700) further comprises a first reinforcing rib plate (730) connecting the first box body and the first bottom plate (710) respectively.

5. The apparatus according to claim 1, wherein The second base (800) comprises a second bottom plate (810) and a second box body having a second containing cavity, the second box body having a support plate (822) at one end away from the second bottom plate (810), and the support plate (822) being formed with a through hole (823) penetrating into the second containing cavity.

6. The position-limiting force detecting apparatus according to claim 5, wherein The second base (800) further comprises a second reinforcing rib plate (830) connecting the second box body and the second bottom plate (810) respectively.

7. The apparatus according to claim 1, wherein The mounting base (400) comprises a mounting plate (410), two ear plates (420) arranged in parallel and connected perpendicularly to the mounting plate (410), a pin shaft (430) fixed between the two ear plates (420), and a fixing member for fixing the mounting plate (410) at a position to be mounted.

8. The apparatus according to claim 1, wherein The pressing rod assembly (500) further comprises a handle (540) located at an end of the rod body (510) away from the mounting base (400); or The pressure detection assembly (600) comprises an electronic scale (610) and an electronic scale display (620) connected to each other, and the bearing table (601) is arranged on the electronic scale (610).

9. A limiter tooling, characterized by, The limit force detection device of any one of claims 1-8, wherein the limit force detection device comprises a limit force detection device (100) comprising a pull rod (110), a clamping assembly (120) and a connecting member (130), the clamping assembly (120) is clamped with the pull rod (110), the pull rod (110) has a first end and a second end arranged oppositely, and the connecting member (130) is arranged at the first end of the pull rod (110).

10. A limited force detection system, characterized by, The limit force detection device of any one of claims 1-8, wherein the limit force detection device is used for detecting the limit force of the limit force detection device (100).

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