Wrench

Abstract

The utility model discloses a wrench which comprises a mounting frame and a lifting assembly, the mounting frame comprises a holding frame and a fastening assembly, the fastening assembly comprises a connecting piece and a first fastening piece, the connecting piece is connected with the holding frame, and the first fastening piece is provided with a first guide inclined plane; the lifting assembly comprises a lifting piece and a second fastening piece, the second fastening piece is provided with a second guide inclined plane, the second guide inclined plane is used for being in sliding fit with the first guide inclined plane, and the lifting piece is used for driving the second guide inclined plane to slide relative to the first guide inclined plane; the first fastening piece and the second fastening piece are combined to form a fastening body, and when the second fastening piece is guided by the first guide inclined face to move towards the holding frame relative to the first fastening piece, the size of the fastening body in the horizontal direction is gradually increased till the first fastening piece and the second fastening piece abut against the inner wall of the positioning hole. Therefore, the first fastening piece and the second fastening piece are prevented from being disengaged from the positioning holes, and an operator can easily take out the workpiece from a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body mold transportation, in particular to a wrench. Background Art

[0002] In the stamping workshop, daily repair, maintenance and inspection of body panel molds must be performed by installing and removing steel materials. The existing solution is to configure lifting lug holes for steel materials larger than 20 kg, and use the lifting lugs of the overhead crane for installation and removal. However, the steel materials for small object processing (weighing 3 kg to 15 kg) do not have lifting lug holes, and operators can only install and remove steel materials by hand. However, the steel materials are of different sizes, and the space for installing steel materials is small. It is difficult for operators to pick up and install steel materials by hand, which makes it difficult to pick up steel materials.

[0003] In view of this, it is necessary to provide a new wrench to solve or at least alleviate the above-mentioned technical defects. Utility Model Content

[0004] The main purpose of the utility model is to provide a wrench, aiming to solve the technical problem of the difficulty in the existing steel material taking operation.

[0005] In order to achieve the above object, the utility model provides a wrench, the wrench comprising:

[0006] A mounting frame, the mounting frame comprising a holding frame and a fastening assembly, the fastening assembly comprising a connecting member and a first fastening member connected to each other, the connecting member is connected to the holding frame, and the first fastening member is provided with a first guiding inclined surface;

[0007] A lifting component, the lifting component includes a lifting member and a second fastener connected to each other, the second fastener is provided with a second guide slope consistent with the inclination direction of the first guide slope, the second guide slope is used for sliding cooperation with the first guide slope, and the lifting member is used to drive the second guide slope to slide relative to the first guide slope; the first fastener and the second fastener are combined to form a fastening body, when the second fastener moves relative to the first fastener in a direction close to the holding frame under the guidance of the first guide slope, the size of the fastening body in the horizontal direction gradually increases.

[0008] In one embodiment, the first fastener includes a first guide area and a first positioning area, the first guide area is arranged toward the second fastener, the first guide slope is arranged in the first guide area, the first fastener protrudes outward to form a first positioning portion, the first positioning portion is arranged in the first positioning area, and the first positioning portion can cooperate with the internal thread in the positioning hole on the workpiece.

[0009] In one embodiment, the first positioning portion includes a first thread segment, the number of the first thread segments is multiple, the multiple first thread segments are arranged at intervals along the axial direction of the first fastener, and the first thread segment is used to spirally cooperate with the internal thread in the positioning hole.

[0010] In one embodiment, the second fastener includes a second guide area and a second positioning area, the second guide area is arranged toward the first fastener, the second guide slope is arranged in the second guide area, the second fastener protrudes outward to form a second positioning portion, the second positioning portion is arranged in the second positioning area, and the second positioning portion can cooperate with the internal thread in the positioning hole on the workpiece.

[0011] In one embodiment, the second positioning portion includes a second thread segment, the number of the second thread segments is multiple, the multiple second thread segments are arranged at intervals along the axial direction of the second fastener, and the second thread segment is used to spirally cooperate with the internal thread in the positioning hole.

[0012] In one embodiment, the lifting member includes a pull rod, the connecting member is provided with a limiting hole for the pull rod to pass through, the limiting hole is clearance-matched with the pull rod, and one end of the pull rod away from the holding frame is connected to the second fastener.

[0013] In one embodiment, a dimension of the second fastener toward one end of the pull rod is larger than an inner diameter of the limiting hole, so as to limit the second fastener from entering the limiting hole.

[0014] In one embodiment, the lifting member further includes a holding rod, and the holding rod is connected to the pull rod and is used to drive the pull rod to move relative to the connecting member.

[0015] In one embodiment, the holding rod includes a rod body and a connecting portion that are connected to each other, one end of the rod body is hinged to the holding frame, the connecting portion is provided with a waist-shaped hole, and one end of the pull rod away from the second fastener is rotatably installed on the connecting portion through the waist-shaped hole, so that the rod body can drive the second fastener to move relative to the first fastener through the connecting portion and the pull rod.

[0016] In one embodiment, the holding frame is an annular holding frame.

[0017] In the above technical solution of the utility model, the operator holds the holding frame, extends the first fastener and the second fastener together into the positioning hole of the workpiece, and then drives the second fastener to move upward through the lifting member, so that the second guide slope moves upward and also moves to the left under the guidance of the first guide slope, thereby causing the lateral size of the fastener body formed by the combination of the first fastener and the second fastener to gradually increase, until the first fastener and the second fastener are both pressed against the inner wall of the positioning hole, thereby limiting the first fastener and the second fastener from coming out of the positioning hole. Since the first fastener and the second fastener occupy less space than human hands, the operator can easily take out the workpiece from a small space. The workpiece can be steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the utility model. For ordinary technicians in this field, other drawings can be obtained by using the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a wrench according to an embodiment of the utility model;

[0020] Figure 2 This is a structural schematic diagram of a wrench in an expanded state according to an embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of a wrench in a dislocated state according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of a mounting frame for a wrench according to an embodiment of the utility model;

[0023] Figure 5 It is a partial structural schematic diagram of a lifting assembly of a wrench according to an embodiment of the utility model;

[0024] Figure 6 The figure is a schematic structural diagram of a grip rod of a wrench according to an embodiment of the utility model.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications (such as up, down, left, and right) in the embodiments of the present invention are only used to explain the position of the user in a certain posture (such as the attached Figure 2 The relative position relationship, movement status, etc. between the various components under the specific posture are shown. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" can explicitly or implicitly include at least one of the features.

[0032] Furthermore, the technical solutions between the various implementation modes of the present invention can be combined with each other, but this must be based on the fact that ordinary technicians in the field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The utility model provides a wrench 1. In one embodiment, Figure 1 to Figure 6 As shown, the wrench 1 includes a mounting frame 11 and a lifting assembly 12, the mounting frame 11 includes a gripping frame 111 and a fastening assembly 112, the fastening assembly 112 includes a connecting piece 1121 and a first fastening piece 1122 connected to each other, the connecting piece 1121 is connected to the gripping frame 111, and the first fastening piece 1122 is provided with a first guide inclined surface 11223; the lifting assembly 12 includes a lifting piece 121 and a second fastening piece 122 connected to each other, and the second fastening piece 122 is provided with a first guide inclined surface 11223 in the same direction as the first guide inclined surface 11223. The second guide slope 12211 is used to slide with the first guide slope 11223, and the lifting member 121 is used to drive the second guide slope 12211 to slide relative to the first guide slope 11223; the first fastener 1122 and the second fastener 122 are combined to form a fastening body, and when the second fastener 122 moves relative to the first fastener 1122 toward the holding frame 111 under the guidance of the first guide slope 11223, the size of the fastening body in the horizontal direction gradually increases.

[0034] The operator holds the gripping frame 111, inserts the first fastener 1122 and the second fastener 122 into the positioning hole of the workpiece, and then drives the second fastener 122 to move upward through the lifting member 121, so that the second guide slope 12211 moves upward and also moves to the left under the guidance of the first guide slope 11223, thereby causing the lateral size of the fastener body formed by the combination of the first fastener 1122 and the second fastener 122 to gradually increase, until the first fastener 1122 and the second fastener 122 are both pressed against the inner wall of the positioning hole, and the fastener body is in an expanded state, thereby limiting the first fastener 1122 and the second fastener 122 from coming out of the positioning hole. Since the first fastener 1122 and the second fastener 122 occupy less space than human hands, the operator can easily take out the workpiece from the narrow space, reducing the time cost of the operator due to the inability to install and extract steel materials by hand for many times. The workpiece can be steel. It should be noted that, since the lateral dimension of the fastener is adjustable within a certain range, it can be adapted to positioning holes of different sizes, thereby improving the adaptability of the wrench 1; wherein the fastener is a structure approximately cylindrical, and the outer diameter of the fastener can be varied in the range of 18.8 mm to 22 mm. It should also be noted that when the user wants to place the workpiece at a specified position, he only needs to move the workpiece to the specified position through the holding frame 111, and then move the lifting member 121 downward, so that the lifting member 121 drives the second fastener 122 to move downward relative to the first fastener 1122, thereby reducing the lateral size of the fastener, so that the fastener can recover from the self-expanding state to the dislocated state, so that the size of the fastener is smaller than the size of the positioning hole, so that the first fastener 1122 and the second fastener 122 can be smoothly removed from the positioning hole; the operator can accurately adjust the workpiece to the required position through the wrench 1, thereby reducing the operator's work content; and because the use of the wrench 1 to disassemble and assemble steel materials takes less time, the labor cost that can be saved is: 22.5 hours / month X 80 yuan / hour = 1,800 yuan / month.

[0035] In one embodiment, the first fastener 1122 includes a first guide area 11221 and a first positioning area 11222, the first guide area 11221 is arranged toward the second fastener 122, the first guide slope 11223 is arranged in the first guide area 11221, the first fastener 1122 protrudes outward to form a first positioning portion 11224, the first positioning portion 11224 is arranged in the first positioning area 11222, and the first positioning portion 11224 can cooperate with the internal thread in the positioning hole on the workpiece. By setting the first positioning portion 11224 to engage with the internal thread in the positioning hole, it is more difficult for the first fastener 1122 and the second fastener 122 to fall out of the positioning hole when they are pressed against the inner wall of the positioning hole, which effectively reduces the occurrence of the phenomenon that the workpiece falls and injures the staff or damages other components. It should be noted that the inner wall of the positioning hole can be a smooth hole wall or a positioning hole with an internal thread. It should also be noted that the inner diameter of the positioning hole is generally 20 mm.

[0036] In one embodiment, the first positioning portion 11224 includes a first thread segment 11224A, the number of the first thread segment 11224A is multiple, the multiple first thread segments 11224A are arranged at intervals along the axial direction of the first fastener 1122, and the first thread segment 11224A is used to spirally cooperate with the internal thread in the positioning hole. By setting the multiple first thread segments 11224A to spirally cooperate with the internal thread of the positioning hole, when the first fastener 1122 and the second fastener 122 are pressed against the inner wall of the positioning hole, the multiple first thread segments 11224A are in a spirally cooperative state with the internal thread of the positioning hole, which makes it more difficult for the first fastener 1122 and the second fastener 122 to fall out of the positioning hole, thereby improving the reliability of the wrench 1 in clamping the workpiece and the safety of the operator.

[0037] In one embodiment, the second fastener 122 includes a second guide area 1221 and a second positioning area 1222, the second guide area 1221 is arranged toward the first fastener 1122, the second guide slope 12211 is arranged in the second guide area 1221, the second fastener 122 protrudes outward to form a second positioning portion 12221, the second positioning portion 12221 is arranged in the second positioning area 1222, and the second positioning portion 12221 can be engaged with the internal thread in the positioning hole on the workpiece. By setting the second positioning portion 12221 to cooperate with the internal thread in the positioning hole, it is more difficult for the first fastener 1122 and the second fastener 122 to fall out of the positioning hole when they are pressed against the inner wall of the positioning hole, which effectively reduces the occurrence of the phenomenon that the workpiece falls and injures the staff or damages other components. It should be noted that the first positioning portion 11224 and the second positioning portion 12221 work together to further reduce the probability of the first fastener 1122 and the second fastener 122 falling out of the positioning hole.

[0038] In one embodiment, the second positioning portion 12221 includes a second thread segment 12221A, the number of the second thread segment 12221A is multiple, and the multiple second thread segments 12221A are arranged at intervals along the axial direction of the second fastener 122, and the second thread segment 12221A is used to spirally cooperate with the internal thread in the positioning hole. By setting the multiple second thread segments 12221A to spirally cooperate with the internal thread of the positioning hole, when the first fastener 1122 and the second fastener 122 are pressed against the inner wall of the positioning hole, the multiple second thread segments 12221A are in a spirally cooperative state with the internal thread of the positioning hole, which makes it more difficult for the first fastener 1122 and the second fastener 122 to fall out of the positioning hole, thereby improving the reliability of the wrench 1 in clamping the workpiece and the safety of the operator.

[0039] According to one embodiment of the utility model, a plurality of first thread segments 11224A are provided on the first fastener 1122, and a plurality of second thread segments 12221A are provided on the second fastener 122. The first thread segments 11224A and the second thread segments 12221A are used together to cooperate with the internal thread spiral of the positioning hole, thereby forming friction self-locking, effectively preventing the first fastener 1122 and the second fastener 122 from falling out of the positioning hole.

[0040] In one embodiment, the lifting member 121 includes a pull rod 1211, and the connecting member 1121 is provided with a limiting hole 11211 for the pull rod 1211 to pass through. The limiting hole 11211 is clearance-matched with the pull rod 1211, and one end of the pull rod 1211 away from the holding frame 111 is connected to the second fastener 122. The pull rod 1211 can move up and down relative to the limiting hole 11211. Since the limiting hole 11211 and the pull rod 1211 are clearance-matched, a margin space is reserved for the second fastener 122 to move leftward; at the same time, the limiting hole 11211 also plays a certain limiting and guiding role on the pull rod 1211, limiting the pull rod 1211 to move within a certain space, thereby limiting the upper limit of the size of the lateral expansion of the fastener, and the limiting hole 11211 also plays a certain guiding role on the pull rod 1211, so that the pull rod 1211 can slide along a certain direction. It should be noted that the pull rod 1211 and the second fastener 122 are integrally formed parts.

[0041] In one embodiment, the size of the second fastener 122 at one end facing the pull rod 1211 is larger than the inner diameter of the limiting hole 11211, so as to limit the second fastener 122 from entering the limiting hole 11211. The end of the second fastener 122 facing the pull rod 1211 cannot enter the limiting hole 11211, thereby limiting the upward movement of the second fastener 122 relative to the first fastener 1122, and further limiting the upper limit of the size of the lateral expansion of the fastener, so as to prevent the second fastener 122 from continuing to move beyond the upper limit of the upward movement, and ensure the reliability of the cooperation between the first guide slope 11223 and the second guide slope 12211.

[0042] In one embodiment, the lifting member 121 further includes a gripping rod 1212, which is connected to the pull rod 1211 and is used to drive the pull rod 1211 to move relative to the connecting member 1121. The gripping rod 1212 is provided to facilitate the operator to grasp, thereby facilitating the operator to drive the pull rod 1211 to move through the gripping rod 1212.

[0043] In one embodiment, the gripping rod 1212 includes a rod body 12121 and a connecting portion 12122 that are connected to each other. One end of the rod body 12121 is hinged to the gripping frame 111. The connecting portion 12122 is provided with a waist-shaped hole 12123. One end of the pull rod 1211 away from the second fastener 122 is rotatably mounted on the connecting portion 12122 through the waist-shaped hole 12123, so that the rod body 12121 can drive the second fastener 122 to move relative to the first fastener 1122 through the connecting portion 12122 and the pull rod 1211. The connecting portion 12122 is arranged near the hinged position of the rod body 12121 and the gripping frame 111, and the operator holds the other end of the rod body 1212. The lever principle is used to enable the operator to easily press the first fastener 1122 and the second fastener 122 against the inner wall of the positioning hole of the workpiece, saving the operator's manpower. It should be noted that an avoidance hole for avoiding the connecting part 12122 is opened at one end of the pulling rod 1211 away from the second fastener 122, and the hole walls on both sides of the avoidance hole are respectively opened with a first connecting hole and a second connecting hole, and the first connecting hole and the second connecting hole are coaxially arranged. The pulling member 121 also includes a hinge shaft, which passes through the first connecting hole, the waist-shaped hole 12123 and the second connecting hole, and the hinge shaft can slide and roll in the waist-shaped hole 12123.

[0044] In one embodiment, the holding frame 111 is an annular holding frame 111. The annular holding frame 111 is convenient for the operator to hold and convenient for the operator to operate.

[0045] According to an embodiment of the present invention, the wrench 1 is a metal wrench 1 , that is, each component on the wrench 1 is a metal part.

[0046] The above are only preferred implementations of the utility model, and do not limit the patent scope of the utility model. All equivalent structural changes made based on the concept of the utility model and the contents of the description and drawings of the utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A wrench, characterized in that: include: A mounting frame, the mounting frame comprising a holding frame and a fastening assembly, the fastening assembly comprising a connecting member and a first fastening member connected to each other, the connecting member is connected to the holding frame, and the first fastening member is provided with a first guiding inclined surface; A lifting component, the lifting component includes a lifting member and a second fastener connected to each other, the second fastener is provided with a second guide slope consistent with the inclination direction of the first guide slope, the second guide slope is used for sliding cooperation with the first guide slope, and the lifting member is used to drive the second guide slope to slide relative to the first guide slope; the first fastener and the second fastener are combined to form a fastening body, when the second fastener moves relative to the first fastener in a direction close to the holding frame under the guidance of the first guide slope, the size of the fastening body in the horizontal direction gradually increases.

2. The wrench according to claim 1, characterized in that: The first fastener includes a first guide area and a first positioning area, the first guide area is arranged toward the second fastener, the first guide slope is arranged in the first guide area, the first fastener protrudes outward to form a first positioning portion, the first positioning portion is arranged in the first positioning area, and the first positioning portion can cooperate with the internal thread in the positioning hole on the workpiece.

3. The wrench according to claim 2, characterized in that: The first positioning portion includes a first thread segment, the number of the first thread segments is multiple, the multiple first thread segments are arranged at intervals along the axial direction of the first fastener, and the first thread segment is used to spirally cooperate with the internal thread in the positioning hole.

4. The wrench according to claim 1, characterized in that: The second fastener includes a second guide area and a second positioning area, the second guide area is arranged toward the first fastener, the second guide slope is arranged in the second guide area, the second fastener protrudes outward to form a second positioning portion, the second positioning portion is arranged in the second positioning area, and the second positioning portion can cooperate with the internal thread in the positioning hole on the workpiece.

5. The wrench according to claim 4, characterized in that: The second positioning portion includes a second thread segment, the number of the second thread segments is multiple, the multiple second thread segments are arranged at intervals along the axial direction of the second fastener, and the second thread segment is used to spirally cooperate with the internal thread in the positioning hole.

6. The wrench according to any one of claims 1 to 5, characterized in that: The lifting member includes a pull rod, the connecting member is provided with a limiting hole for the pull rod to pass through, the limiting hole is clearance-matched with the pull rod, and one end of the pull rod away from the holding frame is connected to the second fastener.

7. The wrench according to claim 6, characterized in that The dimension of the second fastener at one end facing the pull rod is larger than the inner diameter of the limiting hole, so as to limit the second fastener from entering the limiting hole.

8. The wrench according to claim 6, characterized in that The lifting member further comprises a holding rod, which is connected to the pull rod and is used to drive the pull rod to move relative to the connecting member.

9. The wrench according to claim 8, characterized in that The holding rod includes a rod body and a connecting part that are connected to each other. One end of the rod body is hinged to the holding frame. The connecting part is provided with a waist-shaped hole. One end of the pull rod away from the second fastener is rotatably installed on the connecting part through the waist-shaped hole, so that the rod body can drive the second fastener to move relative to the first fastener through the connecting part and the pull rod.

10. The wrench according to any one of claims 1 to 5, characterized in that: The holding frame is an annular holding frame.

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