A portable concrete pulling instrument

Abstract

The present application discloses a portable concrete puller, which belongs to the technical field of concrete pullers. The key points of its technical solution are that it includes a puller body, and the puller body includes: a fastening mechanism, including a lacing, a retractor and a clockwork spring; a driving mechanism, including a guide wheel, a guide rod and a connecting device; a supporting mechanism; a base; a storage chamber; a pulling rod, including a control component; and a pulling head, which is connected to the control component; wherein the retractor is placed in the storage chamber, the retractor is rotationally connected to the puller body through a clockwork spring, the lacing and the retractor cooperate, and the guide wheel and the guide rod cooperate through a connecting device. The present application provides a portable concrete puller, which is easy to carry and convenient for staff to carry it to a high place. It has a wide range of applications and is relatively convenient to use.

Description

Technical Field

[0001] The present application belongs to the technical field of concrete pulling instruments, and in particular, relates to a portable concrete pulling instrument. Background Art

[0002] The concrete pull-out tester is used to test the pull-out strength of surface concrete and the bonding strength of local repair materials. The test only causes very slight damage to the concrete. It is also a very useful tool for evaluating the gradual deterioration of the pull-out strength and bonding strength of concrete under common and harsh working environments.

[0003] The existing Chinese patent with publication number CN112285020B discloses a concrete puller for house safety appraisal and a method of using the same. A first side plate is provided on one side of the puller body, a second side plate is provided on the other side of the puller body, handles are provided on both side surfaces of the puller body, a placement groove is provided between the puller body and the first side plate and the second side plate, a driving mechanism is provided inside the placement groove, a pulling rod is provided on one side of the driving mechanism, a pulling mechanism is provided on one side of the pulling rod, a pulling head mechanism is provided on one side of the pulling mechanism, a first sliding column is provided at the lower end of the puller body, and auxiliary brackets are provided at the lower ends of the first side plate and the second side plate.

[0004] The above concrete puller does not require the staff to carry it for a long time, which prevents the staff's hands from getting sore and causing the puller to be unstable, and is relatively convenient to use. However, when testing a higher wall, the staff needs to transport the concrete puller to a high place for testing. The concrete puller is not convenient for the staff to carry to a high place, which increases the labor intensity of the staff and is relatively inconvenient to use. Utility Model Content

[0005] The purpose of the present application is to provide a portable concrete pulling instrument to address the above-mentioned technical problems. The concrete pulling instrument is easy to carry and convenient for workers to carry it to high places. It has a wide range of applications and is convenient to use.

[0006] The present application provides a portable concrete puller, comprising a puller body, wherein the puller body comprises:

[0007] A fastening mechanism, including a tether, a retractor and a spring;

[0008] A driving mechanism, including a guide wheel, a guide rod and a connecting device;

[0009] Support mechanism;

[0010] Base;

[0011] Storage cavity;

[0012] A pull rod, including a control assembly;

[0013] A pulling head connected to the control assembly;

[0014] The retractor is placed in the storage cavity, the retractor and the puller body are rotationally connected through a clockwork spring, the lace and the retractor are matched, and the guide wheel and the guide rod are matched through a connecting device.

[0015] In the technical solution, a fastening mechanism and a driving mechanism are provided in the puller body, and a lace, a retractor and a spring spring are provided in the fastening mechanism. When the staff needs to carry the puller body to a high place, the lace is pulled to form a certain space between the lace and the puller body, so that the staff can use the lace as a shoulder strap to carry the puller body to a high place. The retractor is placed in the storage cavity, the lace and the retractor cooperate with each other, and the retractor and the puller body are rotatably connected through the spring spring, so that the spring spring in the retractor can tighten the lace, so that the staff can carry the puller body stably. The puller body, in some special places, for example, when the staff needs to go to a higher place via a ladder, the staff can fix the guide rod and the ladder, and the guide wheel and the guide rod are matched through a connecting device, so that the puller body can slide through the cooperation between the guide wheel and the guide rod, and slide from the lower part of the ladder to the higher part, without the need for manual carrying, and is more convenient to use. The support mechanism and the base are used in conjunction to assist the staff in supporting the puller body to reduce the labor intensity of the staff. The pulling rod, control assembly and pulling head are used to detect the strength of concrete, thereby conducting a safety appraisal of the building.

[0016] Furthermore, the driving mechanism comprises:

[0017] A first motor including a worm gear;

[0018] A worm wheel, which cooperates with the worm;

[0019] winding belts, which are placed at both ends of the guide rod;

[0020] A slider, which is slidably connected to the guide rod;

[0021] Wherein, the guide wheel is connected to the worm wheel.

[0022] In the present technical solution, a worm and a worm wheel with a first motor are arranged in the driving mechanism, and the worm wheel and the worm cooperate with each other. When the pulling instrument body needs to transmit on the guide rod, the first motor is controlled to rotate, and the first motor drives the worm and the worm wheel to rotate, so that the guide wheel and the worm wheel rotate synchronously, which is convenient for the guide wheel to slide on the guide rod. Winding belts are arranged at both ends of the guide rod. The winding belts are convenient for fixing the guide rod and tools such as ladders together, and a slider is slidably connected to the guide rod. The staff slides the slider to the appropriate position, and the pulling instrument body stops after sliding to the position of the slider, so that the staff can adjust the height reached by the pulling instrument body, thereby expanding the application range of the pulling instrument body.

[0023] Furthermore, the connecting device comprises:

[0024] A stop block including a torsion spring;

[0025] A buckle connected to the limit block;

[0026] Among them, the puller body is provided with a slot, the guide rod is provided with a groove, the limit block cooperates with the groove, the buckle cooperates with the slot, and the limit block and the puller body are rotationally connected through a torsion spring.

[0027] In the present technical solution, a limit block and a buckle with a torsion spring are provided in the connecting device, the buckle and the limit block are connected, a slot is provided on the puller body, a groove is provided on the guide rod, the limit block and the groove cooperate with each other, and the buckle and the slot cooperate with each other. When the puller body is installed on the guide rod, the limit block is rotated to make the buckle and the slot cooperate with each other. At this time, the limit block and the groove cooperate with each other, which facilitates the sliding of the puller body on the guide rod. When the puller body reaches the specified position and needs to be disassembled, the staff releases the cooperation between the buckle and the slot, and the limit block is reset by the torsion spring to facilitate the user to disassemble the puller body, which is more convenient to use.

[0028] Furthermore, the supporting mechanism comprises:

[0029] Support rods, including base plates;

[0030] A second motor including a lead screw;

[0031] A suspension spring connected to the support rod;

[0032] Wherein, the screw rod is matched with the support rod.

[0033] In the present technical solution, a support rod with a bottom plate and a second motor with a screw rod are provided in the support mechanism, the support rod is connected to the puller body through a suspension spring, and the screw rod cooperates with the support rod. After the puller body is placed in the working position, the working position is not necessarily flat. The user controls the rotation of the second motor to make the support rod slide on the screw rod to facilitate the contact between the bottom plates on both sides and the working position, so that the puller body can be stably placed in the working position, which is convenient for the staff to detect the strength of the concrete. The suspension spring can withstand and transmit vertical loads to alleviate the impact caused by the uneven working position.

[0034] Furthermore, the base is provided with a limit plate;

[0035] Wherein, the limit plate is rotatably connected to the base, and the limit plate and the base are matched by bolts.

[0036] In the present technical solution, a limit plate is provided on the base, the limit plate and the base are rotatably connected, and the limit plate and the base are matched by bolts. After the staff places the puller body at the working position through the supporting mechanism, the limit plate is rotated. After the limit plate contacts the working position, the bolts are tightened to fix the limit plate and the base, thereby expanding the contact area between the puller body and the working position. The staff only needs to lightly support or press the puller body to make the puller body work effectively in some uneven working positions, thereby enhancing the practicality of the puller body.

[0037] Furthermore, the pulling instrument body is also provided with a protective cover;

[0038] Wherein, the protective cover is rotatably connected to the pulling instrument body.

[0039] In the present technical solution, a protective cover is rotatably connected to the pulling instrument body. After the pulling instrument body is in the working position, the staff rotates the protective cover to the side of the pulling instrument body away from the ground and makes the protective cover parallel to the ground. This can effectively prevent construction waste such as rubble from falling into the pulling instrument body, avoid affecting the detection results of the pulling instrument body, and ensure that the pulling instrument body can be used safely.

[0040] The beneficial effects of this application are:

[0041] 1. The staff pulls the lacing to form a certain space between the lacing and the puller body, which is convenient for the staff to carry the puller body to a high place. The spring in the retractor can tighten the lacing, so that the staff can carry the puller body stably, and the guide rod and the ladder can be fixed. The guide wheel and the guide rod are matched through the connecting device, which makes it convenient for the puller body to be transmitted through the guide rod, making it more convenient to use.

[0042] 2. When the puller body is transmitting on the guide rod, the first motor is controlled to rotate, and the first motor drives the worm and the worm wheel to rotate, so that the guide wheel and the worm wheel rotate synchronously, which is convenient for the guide wheel to slide on the guide rod. The winding belt on the guide rod can fix the guide rod and tools such as ladders together, which is convenient for the staff to carry and use the puller body.

[0043] 3. The working position of the puller body is not necessarily flat. The user controls the rotation of the second motor to make the support rod slide on the screw rod to facilitate the contact between the bottom plates on both sides and the working position, so that the puller body can be stably placed in the working position, which is convenient for testing the strength of concrete. The suspension spring can withstand and transmit vertical loads to alleviate the impact caused by the uneven working position. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the structure of a portable concrete pulling instrument for this application;

[0045] Figure 2 It is a schematic diagram of the structure inside the pulling instrument body;

[0046] Figure 3 for Figure 1 A schematic diagram of the structure;

[0047] Figure 4 is a schematic diagram of the structure of the connecting device;

[0048] Figure 5 is a schematic diagram of the structure of the driving mechanism;

[0049] 1. The reference numerals in the figure are as follows: 100, the pulling instrument body; 110, the base; 111, the limit plate; 120, the storage chamber; 130, the pulling rod; 131, the control assembly; 140, the pulling head; 150, the slot; 160, the protective cover; 200, the fastening mechanism; 210, the strap; 220, the retractor; 230, the clockwork spring; 300, the driving mechanism; 310, the guide wheel; 320, the guide rod; 321, the groove; 330, the connecting device; 331, the limit block; 332, the buckle; 333, the torsion spring; 340, the first motor; 341, the worm; 350, the worm wheel; 360, the winding belt; 370, the slider; 400, the supporting mechanism; 410, the supporting rod; 411, the bottom plate; 420, the second motor; 421, the screw; 430, the suspension spring. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0051] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0052] The following provides a detailed description of the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0053] Embodiment 1:

[0054] like Figure 1-5 As shown, the embodiment of the present application provides a portable concrete pulling instrument, including a pulling instrument body 100, wherein the pulling instrument body 100 includes:

[0055] The fastening mechanism 200 includes a tether 210, a retractor 220 and a spring 230;

[0056] The driving mechanism 300 includes a guide wheel 310, a guide rod 320 and a connecting device 330;

[0057] Support mechanism 400;

[0058] Base 110;

[0059] Storage chamber 120;

[0060] The pull rod 130 includes a control assembly 131;

[0061] A drawing head 140 connected to the control assembly 131;

[0062] The retractor 220 is placed in the storage cavity 120 , the retractor 220 is rotationally connected to the puller body 100 via a clockwork spring 230 , the lace 210 cooperates with the retractor 220 , and the guide wheel 310 and the guide rod 320 cooperate via a connecting device 330 .

[0063] By providing a fastening mechanism 200 and a driving mechanism 300 in the puller body 100, and providing a tether 210, a retractor 220 and a spring spring 230 in the fastening mechanism 200, when the staff needs to carry the puller body 100 to a high place, the tether 210 is pulled to form a certain space between the tether 210 and the puller body 100, so that the staff can use the tether 210 as a shoulder strap to carry the puller body 100 to a high place, and the retractor 220 is placed in the storage cavity 120, the tether 210 and the retractor 220 cooperate with each other, and the retractor 220 and the puller body 100 are rotatably connected through the spring spring 230, so that the spring spring 230 in the retractor 220 can tighten the tether 210, The staff can carry the pulling instrument body 100 stably. In some special places, for example, when the staff needs to go to a higher place via a ladder, the staff can fix the guide rod 320 and the ladder, and the guide wheel 310 and the guide rod 320 are matched through the connecting device 330, so that the pulling instrument body 100 can slide through the cooperation between the guide wheel 310 and the guide rod 320, and slide from the lower part of the ladder to the higher part, without manual carrying, and is more convenient to use. The support mechanism 400 is used in conjunction with the base 110 to assist the staff in supporting the pulling instrument body 100 to reduce the labor intensity of the staff. The pulling rod 130, the control assembly 131 and the pulling head 140 are used to detect the strength of concrete, thereby conducting a safety appraisal of the building.

[0064] Furthermore, the driving mechanism 300 includes:

[0065] A first motor 340 including a worm 341;

[0066] The worm wheel 350 cooperates with the worm 341;

[0067] A wrapping belt 360 is placed at both ends of the guide rod 320;

[0068] A slider 370 slidably connected to the guide rod 320 ;

[0069] The guide wheel 310 is connected to the worm wheel 350 .

[0070] By providing a worm 341 and a worm wheel 350 with a first motor 340 in the driving mechanism 300, and the worm wheel 350 cooperates with the worm 341, when the pulling instrument body 100 needs to transmit on the guide rod 320, the first motor 340 is controlled to rotate, and the first motor 340 drives the worm 341 and the worm wheel 350 to rotate, so that the guide wheel 310 and the worm wheel 350 rotate synchronously, which facilitates the guide wheel 310 to slide on the guide rod 320, and winding belts 360 are provided at both ends of the guide rod 320. The winding belts 360 facilitate fixing the guide rod 320 with tools such as ladders, and a slider 370 is slidably connected to the guide rod 320. The staff slides the slider 370 to a suitable position, and the pulling instrument body 100 stops after sliding to the position of the slider 370, so that the staff can adjust the height reached by the pulling instrument body 100, thereby expanding the application range of the pulling instrument body 100.

[0071] Furthermore, the connecting device 330 includes:

[0072] The limiting block 331 includes a torsion spring 333;

[0073] A buckle 332 connected to the limit block 331;

[0074] The puller body 100 is provided with a slot 150 , the guide rod 320 is provided with a groove 321 , the limit block 331 cooperates with the groove 321 , the buckle 332 cooperates with the slot 150 , and the limit block 331 and the puller body 100 are rotationally connected via a torsion spring 333 .

[0075] By providing a limit block 331 and a buckle 332 with a torsion spring 333 in the connecting device 330, the buckle 332 and the limit block 331 are connected, and a slot 150 is provided on the puller body 100, and a groove 321 is provided on the guide rod 320, the limit block 331 and the groove 321 cooperate with each other, and the buckle 332 and the slot 150 cooperate with each other, when the puller body 100 is installed on the guide rod 320, the limit block 331 is rotated to make the buckle 332 and the slot 150 cooperate with each other, at this time, the limit block 331 and the groove 321 cooperate with each other, so that the puller body 100 slides on the guide rod 320 conveniently, and when the puller body 100 reaches the specified position and needs to be disassembled, the staff releases the cooperation between the buckle 332 and the slot 150, and the limit block 331 is reset by the torsion spring 333, so that the user can disassemble the puller body 100, which is convenient to use.

[0076] Furthermore, the support mechanism 400 includes:

[0077] A support rod 410 including a bottom plate 411;

[0078] The second motor 420 includes a screw rod 421;

[0079] A suspension spring 430 connected to the support rod 410;

[0080] The screw rod 421 cooperates with the support rod 410 .

[0081] By arranging a support rod 410 with a bottom plate 411 and a second motor 420 with a screw rod 421 in the support mechanism 400, the support rod 410 is connected to the pulling instrument body 100 through a suspension spring 430, and the screw rod 421 cooperates with the support rod 410. After the pulling instrument body 100 is placed in the working position, the working position is not necessarily flat. The user controls the second motor 420 to rotate to make the support rod 410 slide on the screw rod 421 to facilitate the contact between the bottom plates 411 on both sides and the working position, so that the pulling instrument body 100 can be stably placed in the working position, which is convenient for the staff to detect the strength of the concrete. The suspension spring 430 can withstand and transmit vertical loads to alleviate the impact caused by the uneven working position.

[0082] Embodiment 2:

[0083] like Figure 1-5 As shown, the embodiment of the present application provides a portable concrete pulling instrument, which, in addition to the technical solutions of the above embodiments, also has the following technical features: The base 110 is provided with a limiting plate 111;

[0084] The limiting plate 111 is rotatably connected to the base 110 , and the limiting plate 111 and the base 110 are engaged with each other via bolts.

[0085] By arranging a limit plate 111 on the base 110, the limit plate 111 and the base 110 are rotatably connected, and the limit plate 111 and the base 110 are matched by bolts. After the staff places the puller body 100 at the working position through the support mechanism 400, the limit plate 111 is rotated. After the limit plate 111 contacts the working position, the bolts are tightened to fix the limit plate 111 and the base 110, thereby expanding the contact area between the puller body 100 and the working position. The staff only needs to lightly support or press the puller body 100 to enable the puller body 100 to work effectively in some uneven working positions, thereby enhancing the practicality of the puller body 100.

[0086] Furthermore, the pulling instrument body 100 is also provided with a protective cover 160;

[0087] The protective cover 160 is rotatably connected to the pulling instrument body 100 .

[0088] By rotating the protective cover 160 connected to the pulling instrument body 100, after the pulling instrument body 100 is in the working position, the staff rotates the protective cover 160 to the side of the pulling instrument body 100 away from the ground, and makes the protective cover 160 parallel to the ground, which can effectively prevent construction waste such as rubble from falling into the pulling instrument body 100, avoid affecting the detection result of the pulling instrument body 100, and ensure that the pulling instrument body 100 can be used safely.

[0089] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0090] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A portable concrete pulling instrument, comprising a pulling instrument body (100), characterized in that: The pulling instrument body (100) comprises: A fastening mechanism (200) comprising a lacing strap (210), a retractor (220) and a spring (230); A driving mechanism (300) comprises a guide wheel (310), a guide rod (320) and a connecting device (330); Support mechanism (400); Base (110); A storage chamber (120); A pull rod (130), including a control assembly (131); A drawing head (140) connected to the control assembly (131); The retractor (220) is placed in the storage chamber (120), the retractor (220) and the puller body (100) are rotationally connected via a clockwork spring (230), the lace (210) and the retractor (220) are matched, and the guide wheel (310) and the guide rod (320) are matched via a connecting device (330).

2. A portable concrete pulling instrument according to claim 1, characterized in that: The driving mechanism (300) comprises: A first motor (340) comprising a worm (341); A worm wheel (350) cooperates with the worm (341); A winding belt (360) is placed at both ends of the guide rod (320); A slider (370) slidably connected to the guide rod (320); Wherein, the guide wheel (310) is connected to the worm wheel (350).

3. A portable concrete pulling instrument according to claim 2, characterized in that: The connecting device (330) comprises: The limiting block (331) includes a torsion spring (333); A buckle (332) connected to the limiting block (331); The puller body (100) is provided with a slot (150), the guide rod (320) is provided with a groove (321), the limit block (331) cooperates with the groove (321), the buckle (332) cooperates with the slot (150), and the limit block (331) and the puller body (100) are rotationally connected via a torsion spring (333).

4. A portable concrete pulling instrument according to claim 3, characterized in that: The supporting mechanism (400) comprises: A support rod (410) including a bottom plate (411); A second motor (420) comprising a screw rod (421); A suspension spring (430) connected to the support rod (410); Wherein, the screw rod (421) cooperates with the support rod (410).

5. A portable concrete pulling instrument according to claim 4, characterized in that: The base (110) is provided with a limiting plate (111); The limiting plate (111) and the base (110) are rotatably connected, and the limiting plate (111) and the base (110) are engaged with each other via bolts.

6. A portable concrete pulling instrument according to claim 5, characterized in that: The pulling instrument body (100) is also provided with a protective cover (160); Wherein, the protective cover (160) is rotatably connected to the pulling instrument body (100).

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