tape measure

Abstract

The present invention relates to a tape measure, which comprises a housing, a tape and a hook, wherein the hook comprises a first hook plate and a second hook plate; the first hook plate is connected to the tape; the first hook plate protrudes downward from the lower surface of the tape; the second hook plate is movably connected to the first hook plate; when the second hook plate moves relative to the first hook plate, the second hook plate moves from a state of not protruding upward from the tape to a state of protruding upward from the upper surface of the tape; or, the second hook plate is detachably connected to the first hook plate, and the first hook plate is relatively fixedly connected to the second hook plate. The tape measure of the present invention can adapt to the measurement requirements of different working environments, the tape measure can measure on both sides, and the hook can measure on both sides or on one side, and it is highly practical.

Description

Technical Field

[0001] The present invention relates to measuring tapes. Background Art

[0002] The tape measure is a commonly used measuring tool in life. Usually, the tape measure consists of a shell, a tape and a hook at the end of the tape. The tape can be retracted into the shell and can be extended out of the shell. When in use, the tape is pulled out by pulling the hook, and the hook is hung in a suitable position for measurement. The hook of this traditional tape measure usually protrudes from the tape in a single direction, resulting in the tape being able to measure only in a single direction by hooking an object. When encountering an object with an arc direction opposite to that of the tape surface, the measurement error is large, resulting in greater limitations on the use of the tape measure. The structure of the tape measure hook extending in a single direction results in the tape being set with scale lines only on the upper surface, and the lower surface cannot be set with scale lines for use, further limiting the practicality of the tape measure.

[0003] One type of tape measure is designed with a T-shaped hook section, which extends in two directions starting from the tape. Although this can solve the above-mentioned problem, when measuring a flat surface or an object without space for the hook, the hook protrudes from the surface of the tape, and the hook supports the end of the tape and the object to be measured, so that there is a certain angle between the tape measure and the measured object, which makes it impossible for the tape measure to be tightly connected to the measured object, resulting in a large measurement error.

[0004] Some tape measures are designed with an adjustable double-sided hook. The hook extends in one direction and can be adjusted in the other direction. It can be extended according to actual measurement needs. However, this design has a certain thickness of the hook itself, which causes the hook to be not in the same plane after extending in two directions, and then causes measurement errors due to the thickness of the hook wall. Although some hooks meet the problem of the hook extending in two directions being in the same plane, the design is relatively complex. The hook cannot meet the industry standard design requirements of the tape measure industry to design the hook to bear a certain weight. The life of the tape measure is reduced during use. With more times of use, there are more measurement errors. Some tape measures are prone to detachment when the hook does not meet the weight standard, and the tape measure automatically retracts during measurement, causing certain safety hazards. Many designs with adjustable double-sided hooks cannot be used in real life and are not accepted by consumers. Therefore, the application problem of accurate double-sided measurement of tape measures in different environments has not been solved. Summary of the invention

[0005] One of the purposes of the present invention is to overcome the deficiencies in the prior art and provide a tape measure with a simple structure.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A measuring tape, characterized in that the measuring tape comprises:

[0008] case;

[0009] A tape ruler, the tape ruler having an upper surface and a lower surface opposite to the upper surface, the upper surface and / or the lower surface being provided with scale lines, the tape ruler being retractable in the housing and being extendable;

[0010] A ruler hook, the ruler hook comprising a first hook plate and a second hook plate; the first hook plate is connected to the ruler tape; the first hook plate protrudes downward from the lower surface of the ruler tape;

[0011] The second hook plate is movably connected to the first hook plate; when the second hook plate moves relative to the first hook plate, the second hook plate moves from a state of not protruding upward from the tape to a state of protruding upward from the upper surface of the tape; or,

[0012] The second hook plate is detachably connected to the first hook plate, and the first hook plate is relatively fixedly connected to the second hook plate.

[0013] According to one embodiment of the present invention, the second hook plate has at least a first state and a second state during its movement relative to the first hook plate; in the first state, the first hook plate protrudes downward from the ruler tape, and the second hook plate is parallel to the ruler tape or protrudes downward from the ruler tape; in the second state, the first hook plate protrudes downward from the ruler tape, and the second hook plate protrudes upward from the ruler tape.

[0014] According to an embodiment of the present invention, the second hook plate is movably mounted on the first hook plate.

[0015] According to an embodiment of the present invention, the first hook plate and the second hook plate are interference fit.

[0016] According to one embodiment of the present invention, the second hook plate is provided with L-shaped protrusions on both side edges, and the L-shaped protrusions located on the two side edges respectively form two receiving grooves facing each other with the second hook plate, and the two side end portions of the first hook plate are placed in the receiving grooves; during the movement of the second hook plate, the receiving grooves are mounted on the side ends of the first hook plate and move up and down.

[0017] According to an embodiment of the present invention, the second hook plate is provided with a receiving hole, and the first hook plate is partially or completely disposed in the receiving hole and is adjustably disposed in the receiving hole.

[0018] According to an embodiment of the present invention, the second hook plate is provided with a notch, and the accommodating hole is communicated with the notch.

[0019] According to an embodiment of the present invention, the first hook plate and the second hook plate are connected by a fastener.

[0020] According to an embodiment of the present invention, the fastener is fixedly connected to the second hook plate, and the fastener is detachably connected to the first hook plate and the connection position is adjustable.

[0021] According to one embodiment of the present invention, the fastener is a magnetic pin, a strip hole is provided on the first hook plate, the magnetic pin is inserted into the strip hole and can be slidably arranged along the strip hole, and the magnetic pin and the first hook plate can be adsorbed.

[0022] According to one embodiment of the present invention, the fastener is a screw, and one or more threaded holes are provided on the first hook plate, and the multiple threaded holes are arranged in the up and down directions. The screw passes through the second hook plate and is threadedly engaged with the threaded holes to connect the first hook plate with the second hook plate.

[0023] According to an embodiment of the present invention, the fastener passes through the second hook plate to be detachably connected to the first hook plate, and the fastener presses the second hook plate to connect it with the second hook plate.

[0024] According to an embodiment of the present invention, a first slot is provided on one of the second hook plate and the first hook plate, and a protrusion is provided on the other; the protrusion is inserted into the first slot and can be slidably arranged in the first slot.

[0025] According to an embodiment of the present invention, the first hook plate and the second hook plate are connected via a magnetic adsorption member.

[0026] According to one embodiment of the present invention, a magnetic adsorption component is provided on one of the first hook plate and the second hook plate, and the other is made of a material that can be magnetically adsorbed; the magnetic adsorption component adsorbs the first hook plate or the second hook plate to keep the second hook plate in the first state or the second state.

[0027] According to one embodiment of the present invention, at least one first adsorbent is provided on one of the first hook plate and the second hook plate, and a plurality of second adsorbents are provided on the other; at least one of the first adsorbent and the second adsorbent is magnetic, and the other is magnetic or can be magnetically adsorbed; the plurality of second adsorbents are arranged in the up and down directions; the first adsorbent is adsorbed with different second adsorbents to keep the second hook plate in the first state or the second state.

[0028] According to an embodiment of the present invention, the second hook plate is pivotally connected to the first hook plate, and the second structure plate can be switched between a first state and a second state during the pivoting movement relative to the first hook plate.

[0029] According to an embodiment of the present invention, grooves are provided on both side end surfaces of the second hook plate, and pivot protrusions corresponding to the grooves are provided on both side end surfaces of the first hook plate. The pivot protrusions are placed in the grooves and can pivot relative to the grooves.

[0030] According to one embodiment of the present invention, a limiting protrusion is provided in the groove, and a stop protrusion is provided on the pivot protrusion, and the stop protrusion protrudes from the surface of the pivot protrusion; the limiting protrusion is provided on the rotation path of the stop protrusion, and the limiting protrusion cooperates with the stop protrusion to limit the rotation angle of the pivot protrusion.

[0031] According to one embodiment of the present invention, a slider is provided on the second hook plate, and the slider can be slidably arranged relative to the second hook plate; a matching groove is provided on the first hook plate, and when the second plate is in the second state, the slider can slide until it is partially inserted into the matching groove, and the slider cooperates with the matching groove to keep the second hook plate in the second state.

[0032] According to one embodiment of the present invention, a circular through hole is provided on the surface of the first hook plate, a locking protrusion is provided on the side wall of the circular through hole, a circular protrusion corresponding to the circular through hole is provided on the second hook plate, an L-shaped slot hole is provided on the side wall of the circular protrusion, the circular protrusion is placed in the circular through hole and can pivotally move, and the locking protrusion can be locked in the L-shaped slot hole to connect the first hook plate with the second hook plate.

[0033] According to one embodiment of the present invention, a transverse T-shaped slide rail hole is provided on the first hook plate; a pin is provided on the second hook plate, and the pin can be clamped in the transverse T-shaped slide rail hole and can slide up and down in the transverse T-shaped slide rail hole.

[0034] According to an embodiment of the present invention, the first hook plate is directly connected to the ruler tape or is connected to the ruler tape through a connecting plate; the connecting plate is fixedly connected or movably connected to the ruler tape.

[0035] According to one embodiment of the present invention, the connecting plate and the ruler tape are movably connected via a connecting pin.

[0036] According to one embodiment of the present invention, an extension plate is provided on the second hook plate, a slide rail hole is provided on the extension plate, and a clamping protrusion matching the connecting pin is provided on the side wall of the slide rail hole; the connecting pin can be slidably arranged along the slide rail hole, and the clamping protrusion on the extension plate can be detachably clamped with the connecting pin.

[0037] The tape measure in the present invention can adapt to the measurement requirements of different working environments. The tape measure can be measured on both sides, and the ruler hook can be measured on both sides or on one side. The wall thickness of the ruler hook measured in different ways is the same, the measurement accuracy is high, and the operation is simple and convenient. Under the premise of meeting the design load-bearing standards of the ruler hook industry of the tape measure, the ruler hook has a long service life. The structural design is simple, the production and processing cost is low, and the practicality is strong. The tape measure in the present invention can be measured by using the ruler hook part to hook on the object to be measured, and can also be measured by pressing against a certain position; moreover, the movable connection between the connecting plate and the ruler tape can avoid inconsistent measurement starting points in the hooking and pressing states, and the measurement results are more accurate and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the overall structure of the measuring tape in Example 1 of the present invention.

[0039] Figure 2 This is a schematic diagram of the overall structure of the measuring tape observed from another angle.

[0040] Figure 3 This is a schematic diagram of the disassembly of the tape measure structure in Example 1 of the present invention.

[0041] Figure 4 This is a top view of the measuring tape in Example 1 of the present invention.

[0042] Figure 5 This is a schematic diagram of the second hook plate structure in Example 1 of the present invention.

[0043] Figure 6 Schematic diagram of the structure of the second hook plate of the tape measure in Embodiment 1 of the present invention in the first state.

[0044] Figure 7 for Figure 6 sectional view of .

[0045] Figure 8 Schematic diagram of the structure of the second hook plate of the tape measure in Embodiment 1 of the present invention in the second state.

[0046] Fig. 9 This is a structural cross-sectional view of the second hook plate of the tape measure in Example 1 of the present invention in the second state.

[0047] Fig.10 This is a schematic diagram of the ruler hook and ruler tape structure in Example 2 of the present invention, and the second hook plate is in the second state.

[0048] Fig.11 This is a schematic diagram of the ruler hook and ruler tape structure in Example 2 of the present invention, where the second hook plate is in the first state.

[0049] Fig.12 Schematic diagram of the connection structure between the first hook plate and the second hook plate in Example 2 of the present invention.

[0050] Fig.13 Schematic diagram of the pivotal connection structure between the second hook plate and the first hook plate in Embodiment 2 of the present invention, that is, Fig.12 Middle BB section view.

[0051] Fig.14 FIG. 1 is a schematic diagram of the connection structure between the slider, the second hook plate and the first hook plate in Embodiment 2 of the present invention, that is, Fig.12 Middle AA section view.

[0052] Fig.15 Schematic diagram of the connection structure between the slider and the second hook plate in Example 2 of the present invention, that is, Fig.12 Middle CC section view.

[0053] Fig.16 Schematic diagram of the ruler hook and ruler tape structure in Example 3 of the present invention.

[0054] Fig.17 It is a schematic diagram of the disassembly of the connection structure of the first hook plate and the second hook plate in Example 3 of the present invention.

[0055] Fig.18 It is a schematic cross-sectional view of the connection structure between the first hook plate and the second hook plate in Example 3 of the present invention.

[0056] Fig.19 Schematic diagram of the ruler hook and ruler tape structure in Example 4 of the present invention.

[0057] Fig. 20 Schematic diagram of the connection structure between the first hook plate and the second hook plate in Example 4 of the present invention.

[0058] Fig.21 It is a schematic cross-sectional view of the connection structure between the first hook plate and the second hook plate in Example 4 of the present invention.

[0059] Fig. 22 Schematic diagram of the structure of the ruler tape and ruler hook in Example 5 of the present invention.

[0060] Fig.23 Schematic diagram of the connection structure between the first hook plate and the second hook plate in Example 5 of the present invention.

[0061] Fig.24 It is a schematic cross-sectional view of the connection structure between the first hook plate and the second hook plate in Example 5 of the present invention.

[0062] Fig.25 Schematic diagram of the structure of the ruler tape and ruler hook in Example 6 of the present invention.

[0063] Fig.26 Schematic diagram of the connection structure between the first hook plate and the second hook plate in Example 6 of the present invention.

[0064] Fig. 27 This is a schematic diagram of the structure of the ruler tape and ruler hook in Example 7 of the present invention.

[0065] Fig.28 It is a schematic diagram of the disassembly of the first hook plate and the second hook plate connection structure in Example 7 of the present invention.

[0066] Fig.29 This is a schematic diagram of the splitting of the first hook plate and the second hook plate connection structure in Example 7 of the present invention observed from another angle.

[0067] Fig.30 It is a schematic diagram of the disassembly of the connection structure between the second hook plate and the connection plate in Example 8 of the present invention.

[0068] Fig.31 Schematic diagram of the structure of the ruler tape and ruler hook in Example 9 of the present invention.

[0069] Fig.32 It is a schematic diagram of the split structure of the second hook plate and the first hook plate in Example 9 of the present invention.

[0070] Fig.33 This is a schematic diagram of the split structure of the second hook plate and the first hook plate in Example 9 of the present invention observed from another angle.

[0071] Fig.34 This is a cross-sectional view of the connection relationship between the second hook plate and the first hook plate in Example 9 of the present invention.

[0072] Fig.35 This is a structural diagram of embodiment 10 of the present invention. DETAILED DESCRIPTION

[0073] Example 1

[0074] like Figure 1 , Figure 2 and Figure 3 As shown, a tape measure 100 includes a housing 1, a tape 2 and a hook member 7 located at the end of the tape 2. The tape 2 can be retracted into the housing 1 and can be extended from the housing 1. The tape 2 has an upper surface 21 and a lower surface 22 opposite to the upper surface 21. Both the upper surface 21 and the lower surface 22 are provided with scale lines (not shown in the figure). The scale lines are distributed along the length direction of the tape 2. The hook member 7 is connected to the end of the tape 2 and is placed outside the housing 1.

[0075] like Figures 1 to 8As shown, the ruler hook member 7 includes a connecting plate 3, a first hook plate 4 and a second hook plate 5. The connecting plate 3 is a flat plate extending along the length direction of the ruler tape 2, and is used to connect the ruler tape 2 and the first hook plate 4. Three mounting holes 31 are provided on the connecting plate 3. The connecting pin 6 passes through the three mounting holes 31 and the ruler tape 2 to connect the connecting plate 3 with the ruler tape 2. According to actual needs, the connecting plate 3 and the ruler tape 2 can be fixedly connected or movably connected. When movably connected, the connecting pin 6 is tightly fitted with the mounting hole 31, and the connecting plate 3 is movable. Push the connecting plate 3 to move it along the length direction of the ruler tape 2, so that the connecting pin 6 is located at both ends of the length of the mounting hole 31, and the position of the connecting plate 3 can be adjusted.

[0076] The first hook plate 4 is in the shape of a plate that protrudes downward from the lower surface 22 of the ruler 2. A strip hole 9 is provided on both sides of the first hook plate 4 near the edge. The strip hole 9 extends a certain length in the up-down direction, and the specific length can be determined according to the actual size and the distance that the second hook plate 5 moves up and down. A first through hole 15 is provided in the middle of the first hook plate 4. The first through hole 15 is located between the two strip holes 9. A first groove 11 is also provided at the lower end of the first hook plate 4. The first groove 11 extends upward from the lower end of the first hook plate 4. One end of the connecting plate 3 is connected to the ruler 2 through a pin 6, and the other end is connected to the upper end of the first hook plate 4. The first hook plate 4 and the connecting plate 3 are integrally formed. The first hook plate 4 protrudes downward from the ruler 2 and the connecting plate 3, and the first hook plate 4 is arranged at 90 degrees to the connecting plate 3. Along the length direction of the ruler 2, there is a gap between the first hook plate 4 and the end of the ruler 2.

[0077] The second hook plate 5 is composed of a front wall 51, a rear wall 52 and two side walls 53. The front wall 51, the rear wall 52 and the two side walls 53 enclose a receiving hole 54, and the receiving hole 54 passes through the second hook plate 5 in the up-down direction. The second hook plate 5 is also provided with a second through hole 13 and a second groove 12. The second through hole 13 is located in the middle of the second hook plate 5. The second through hole 13 has the same shape and size as the first through hole 15. The second groove 12 is located at the lower end of the second hook plate 5 and extends upward from the lower end. The second groove 12 has the same shape and size as the first groove 11. A notch 55 is also provided on the rear wall 52. The notch 55 extends downward from the upper end of the rear wall 52 to a selected length. The surface of the rear wall 52 facing the tape 2 serves as a stop surface 56. The stop surface 56 is located between the first hook plate 4 and the tape 2 and faces the tape 2.

[0078] The first hook plate 4 is fixedly connected to the connecting plate 3, and the connecting plate 3 is fixedly connected to the tape 2. The first hook plate 4 is located in the accommodating hole 54. The second hook plate 5 is mounted on the first hook plate 4, and the second hook plate 5 can move up and down. A gap is provided between the first hook plate 4 and the tape 2 to allow the rear wall 52 to move upward through the gap to prevent the rear wall 52 from being blocked during movement. One end of the magnetic pin 10 is connected to the front wall 51, and the other end is connected to the rear wall 52 after passing through the bar through hole 9. As the first hook plate 5 moves up and down, the magnetic pin 10 can move up and down in the bar through hole 9. The first hook plate 4 is made of a material that can be magnetically adsorbed. When the magnetic pin 10 moves up and down in the bar through hole 9, it can be adsorbed at a selected position at any time, thereby fixing the relative position of the first hook plate 4 and the second hook plate 5. During the up and down movement of the second hook plate 5, the connecting plate 3 moves relative to the second hook plate 5 in the notch 55. The notch 55 is provided to prevent the connecting plate 3 from blocking the second hook plate 5 from moving up and down, and to limit the range of the second hook plate 5 moving upward.

[0079] The second hook plate 5 of the measuring tape 100 in this embodiment has two states when in use, namely a first state and a second state. Figure 6 and Figure 7 As shown, in the first state, the first hook plate 4 and the second hook plate 5 both protrude downward from the tape 2, and the second hook plate 5 does not protrude upward from the tape 2. The second through hole 13 is aligned with the first through hole 15, and the second groove 12 is aligned with the first groove 11. The hook 7 is hooked on the object to be measured, and the stop surface 56 is in contact with the object to be measured. At this time, the scale line reading on the upper surface 21 of the tape 2 can be used for measurement.

[0080] The second hook plate 5 can be changed from the first state to the second state. In the first state, the second hook plate 5 is pushed upward to make it move upward until it protrudes upward from the tape 2. During the movement of the second hook plate 5, the magnetic pin 10 moves in the strip through hole 9 until it moves to the top of the strip through hole 9 and is blocked and cannot move further. Figure 8 and Fig. 9 As shown, the second hook plate 5 is fixed at this position by adsorbing the magnetic pin 10 on the first hook plate 4. When the second hook plate 5 is in the second state, the first hook plate 4 protrudes downward from the tape 2, and the second hook plate 5 protrudes upward from the tape 2. The second hook plate 5, the first hook plate 4 and the connecting plate 3 have a T-shaped cross section. The second hook plate 5 is hooked on the object to be measured, and the stop surface 56 is in contact with the object to be measured, and the scale line degree on the lower surface 22 of the tape 2 can be used for measurement.

[0081] The second hook plate 5 can be switched between the first state and the second state, and can be moved from the first state to the second state, or from the second state to the first state.

[0082] Example 2

[0083] like Figures 10 to 15 As shown, a tape measure 100 includes a housing 1, a tape 2 and a hook 7 at the end of the tape 2. The tape 2 can be retracted into the housing 1 and can be extended from the housing 1. The tape 2 has an upper surface 21 and a lower surface 22 opposite to the upper surface 21. Both the upper surface 21 and the lower surface 22 are provided with scale lines (not shown in the figure). The scale lines are distributed along the length direction of the tape 2. The hook 7 is connected to the end of the tape 2 and is placed outside the housing 1.

[0084] The ruler hook member 7 includes a connecting plate 3, a first hook plate 4 and a second hook plate 5. The connecting plate 3 is a flat plate extending along the length direction of the ruler tape 2. Three mounting holes 31 are provided on the connecting plate 3. The connecting pin 6 passes through the three mounting holes 31 and the ruler tape 2 to connect the connecting plate 3 with the ruler tape 2.

[0085] The first hook plate 4 is a flat plate extending downwardly from the lower surface 22 of the ruler tape 2. Two lugs 41 are provided on the upper parts of both sides of the first hook plate 4. A groove 16 with a circular cross section is provided on each lug 41. The two grooves 16 are arranged facing each other. Two sections of limiting protrusions 18 are provided in each groove 16 along the circumferential direction. The two sections of limiting protrusions 18 divide the groove 16 into two sections. A matching groove 21 is also provided on the first hook plate 4. The opening of the matching groove 21 faces upward.

[0086] The second hook plate 5 is provided with pivot protrusions 17 at both side edges of the lower end. The pivot protrusions 17 are provided with stop protrusions 19 protruding from the surface of the pivot protrusions 17. The second hook plate 5 is also provided with a slide groove 22. The slide groove 22 is provided with openings on both the outer surface 57 and the lower end surface 58 of the second hook plate 5. The slider 20 is clamped in the slide groove 22 and can slide. The slider 20 can be pushed to move through the opening of the slide groove 22 on the outer surface 57. The slider 20 can partially slide out of the slide groove 22 through the opening of the slide groove 22 on the lower end surface 58.

[0087] The pivoting protrusion 17 is inserted into the groove 16 and can pivot in the groove 16. Each stop protrusion 19 is located between two limit protrusions 18. The limit protrusion 18 is used to limit the pivoting angle of the stop protrusion 19. During the pivoting process of the pivoting protrusion 17, the second hook plate 5 pivots relative to the first hook plate 4. The second hook plate 5 has a first state and a second state respectively during the pivoting process relative to the first hook plate 4. Fig.11 As shown, in the first state, the second hook plate 5 is parallel to the tape 2 and attached to the tape 2, and the first hook plate 4 protrudes downward from the tape 2. At this time, the first hook plate 4 can be hooked on the object to be measured, and the scale line reading on the upper surface 21 can be used for measurement. Fig.10 As shown, the second hook plate 5 is in the second state after pivoting, and the second hook plate 5 protrudes upward from the ruler 2. After the second hook plate 5 reaches the second state, as shown in FIG. Fig.14As shown, the slider 20 is pushed downward to slide and partially insert into the matching groove 21. The slider 20 connects the first hook plate 4 with the second hook plate 5 to limit the pivoting of the second hook plate 5 and prevent the second hook plate 4 from returning to the first state. At this time, the second hook plate 5 can be used to hook on the object to be measured, and the scale line reading on the lower surface 22 is used for measurement.

[0088] After the slider 20 is slid out of the matching groove 21, the second hook plate 5 can be reversely pivoted to return to the first state. The second hook plate 5 can be transformed between the first state and the second state, and can be moved from the first state to the second state, and can also be moved from the second state to the first state.

[0089] Example 3

[0090] like Figures 16 to 18 As shown, a tape measure 100 includes a housing 1, a tape 2, and a hook 7 at the end of the tape 2. The tape 2 can be retracted into the housing 1 and can be extended from the housing 1. The tape 2 has an upper surface 21 and a lower surface 22 opposite to the upper surface 21. Both the upper surface 21 and the lower surface 22 are provided with scale lines (not shown in the figure). The hook 7 is connected to the end of the tape 2 and is placed outside the housing 1.

[0091] The ruler hook member 7 includes a connecting plate 3, a first hook plate 4 and a second hook plate 5. The connecting plate 3 is a flat plate extending along the length direction of the ruler tape 2. Three mounting holes 31 are provided on the connecting plate 3. The connecting pin 6 passes through the three mounting holes 31 and the ruler tape 2 to connect the connecting plate 3 with the ruler tape 2.

[0092] The first hook plate 4 is in the shape of a flat plate, connected to the end of the connecting plate 3 and formed integrally with the connecting plate 3. The side surface of the first hook plate 4 is provided with a threaded hole 42. The second hook plate 5 includes a flat hook plate body 51 and a groove wall 52. Two groove walls 52 are respectively provided on the two side edges of the hook plate body 51. The groove wall 52 and the second hook plate 5 form a receiving groove 53. The top view of the groove wall 52 is a horizontal L shape. The groove wall 52 is provided with a third groove hole 24. The third groove hole 24 is connected to the receiving groove 53.

[0093] The two side edges of the first hook plate 4 are located in the receiving groove 53. The second hook plate 5 can move up and down relative to the first hook plate 4. During the up and down movement of the second hook plate 5, the edge of the first hook plate 4 is always located in the receiving groove 53. The screw 23 passes through the third slot 24 and is threadedly engaged with the threaded hole 42 on the first hook plate 4. The screw 23 presses the second hook plate 5 to connect the second hook plate 5 with the first hook plate 4, and fixes the second hook plate 5 at a desired position.

[0094] When the tape measure 100 of this embodiment is used, the second hook plate 5 has a first state and a second state when it moves relative to the first hook plate 4. In the first state, both the first hook plate 4 and the second hook plate 5 protrude downward from the tape 2. The first hook plate 4 is connected to the second hook plate 5 by pressing the groove wall 52 on the second hook plate 5 with the screw 23. At this time, the scale line reading on the upper surface 21 of the tape 2 can be used for measurement.

[0095] Loosen the screw 23 and push the second hook plate 5 upward to make it protrude upward from the tape 2. During the upward movement of the second hook plate 5, the side edge of the first hook plate 4 does not completely move out of the receiving groove 53 to prevent the first hook plate 4 from being separated from the second hook plate 5. When the second hook plate 5 moves upward to a sufficient height to protrude upward from the tape 2, the screw 23 is screwed into the threaded hole 42 and presses the second hook plate 5 to fix the second hook plate 5 in this position. At this time, the second hook plate 5 is in the second state, and the second hook plate 5 is hooked on the object to be measured and the scale line reading on the lower surface 22 of the tape 2 can be used for measurement.

[0096] Example 4

[0097] like Figures 19 to 21 As shown, a tape measure 100 includes a housing 1, a tape 2, and a hook 7 at the end of the tape 2. The tape 2 can be retracted into the housing 1 and can be extended from the housing 1. The tape 2 has an upper surface 21 and a lower surface 22 opposite to the upper surface 21. Both the upper surface 21 and the lower surface 22 are provided with scale lines (not shown in the figure). The hook 7 is connected to the end of the tape 2 and is placed outside the housing 1.

[0098] The ruler hook member 7 includes a connecting plate 3, a first hook plate 4 and a second hook plate 5. The connecting plate 3 is a plate extending along the length direction of the ruler tape 2. Three mounting holes 31 are provided on the connecting plate 3. The connecting pin 6 passes through the three mounting holes 31 and the ruler tape 2 to connect the connecting plate 3 with the ruler tape 2. According to actual needs, the connecting plate 3 and the ruler tape 2 can be fixedly connected or movably connected. When the movably connected, the connecting pin 6 is tightly fitted with the mounting hole 31, and the connecting plate 3 is movable. Push the connecting plate 3 to move it along the length direction of the ruler tape 2, so that the connecting pin 6 is located at both ends of the length of the mounting hole 31, and the position of the connecting plate 3 can be adjusted.

[0099] The first hook plate 4 is in the shape of a flat plate, connected to the end of the connecting plate 3 and formed integrally with the connecting plate 3. The first hook plate 4 is provided with a strip hole 9. The strip hole 9 is one in number, located in the middle of the first hook plate 4 and extending in the up-down direction. The first hook plate 4 is made of a material that can be magnetically adsorbed.

[0100] L-shaped protrusions 25 are provided at the edges of both sides of the second hook plate 5, and a receiving groove is formed between the L-shaped protrusions 25 and the second hook plate 5, and the receiving groove is used to receive the side edge of the first hook plate 5. The two L-shaped protrusions 25 and the second hook plate 5 form two receiving grooves with opposite openings. The L-shaped protrusions 25 and the second hook plate 5 clamp the edge of the first hook plate 4 together. The two L-shaped protrusions 25 clamp the second hook plate 5 from both sides. The second hook plate 5 can move up and down. The second hook plate 5 is connected to a magnetic pin 10. The magnetic pin 10 is inserted into the bar hole 9 and can move up and down in the bar hole 9. The second hook plate 5 can be fixed at a designated position by relying on the adsorption force of the magnetic pin 10 and the first hook plate 4. When the second hook plate 5 moves up and down, the two L-shaped protrusions 25 move along the edge of the first hook plate 4. The L-shaped protrusions 25 cooperate with the second hook plate 4 to limit the second hook plate 5 to move only in the up and down direction.

[0101] When the tape measure 100 in this embodiment is used, the second hook plate 5 has a first state and a second state during the up and down movement. In the first state, both the first hook plate 4 and the second hook plate 5 protrude downward from the tape 2, and the second hook plate 5 is fixed in the first state by adsorbing the pin 10 in the strip hole 9 of the first hook plate 4. When the second hook plate 5 needs to move to the second state, the second hook plate 5 is pushed upward, and the magnetic pin 10 moves upward in the strip hole 9 until the second hook plate 5 protrudes upward from the tape 2 to a sufficient height and stops. At this time, the second hook plate 5 protrudes upward from the tape 2, and the second hook plate 5 is fixed in the second state by adsorbing the magnetic pin 10 in the strip hole 9. When the second hook plate 5 is in the second state, the second hook plate 5 can be used to hook the object to be measured, and the scale line reading on the lower surface 22 of the tape 2 is used for measurement. Because the first hook plate 4 has a certain thickness, when the first hook plate 4 is used to hook the object to be measured and the second hook plate 5 is used to hook the object to be measured, the starting point of the measurement will be different. Therefore, the connecting plate 3 is movably connected to the tape 2. The movement of the connecting plate 3 along the tape 2 can eliminate the problem of different measuring starting points in the two states caused by the thickness of the first hook plate 4. According to this solution, the distance that the connecting plate 3 moves along the tape 2 in the first state and the second state is approximately equal to the thickness of the first hook plate 4.

[0102] Example 5

[0103] like Figure 22 to Figure 24 As shown, the difference between this embodiment and embodiment 4 is that the magnetic pin 10 is not provided in this embodiment. The first hook plate 4 is interference fit with the accommodation space formed by the second hook plate 5 and the L-shaped protrusion 25. By means of interference fit, the second hook plate 5 can be tightly connected to the first hook plate 4. By pushing the second hook plate 5 hard, it can be switched between the first state and the second state and maintained in the first state and the second state by means of interference fit.

[0104] In addition, as an alternative embodiment of this embodiment, the two L-shaped protrusions 25 can also be connected by a connecting plate (not shown in the figure), so that the second hook plate 5, the L-shaped protrusion 25 and the connecting plate surround the first hook plate 4 and have an interference fit. The second hook plate 5, the L-shaped protrusion 25 and the connecting plate form a structure that can be sleeved on the first hook plate 4.

[0105] Example 6

[0106] like Fig.25 and Fig.26 As shown, the ruler tape 2 and the connecting plate 3 are the same as those in the aforementioned embodiment, and the connection structure between the ruler tape 2 and the connecting plate 3 is the same as that in the aforementioned embodiment. The first hook plate 4 is connected to the end of the connecting plate 3 and protrudes downward from the ruler tape 2. A first adsorption member 43 is provided on the first hook plate 4. The first adsorption member 43 is magnetic. Three second adsorption members 58 are provided on the second hook plate 5. The three second adsorption members 58 are arranged up and down. The second adsorption member 58 is magnetic and can attract each other with the first adsorption member 43. The second hook plate 5 can be mounted on the first hook plate 4 movably up and down. The mounting structure of the second hook plate 5 and the first hook plate 4 can adopt the structure in the aforementioned embodiment, or other available structures. In the example shown in the figure, a U-shaped plate 44 is connected to the second hook plate 5. The first hook plate 4 passes between the U-shaped plate 44 and the second hook plate 5.

[0107] In the first state, the first hook plate 4 and the second hook plate 5 both protrude downward from the tape 2. The first adsorbent 43 and the second adsorbent 58 at the top attract each other, fixing the second hook plate 5 in the first state. The second hook plate 5 is pushed upward so that the second hook plate 5 protrudes upward from the tape 2 to reach the second state. The first adsorbent 43 and the second adsorbent 58 at the bottom attract each other, fixing the second hook plate 5 in the second state.

[0108] Example 7

[0109] like Figure 27 to Figure 29 As shown, the first hook plate 4 is connected to the end of the connecting plate 3 and protrudes downward from the tape 2. A circular through hole 61 is provided on the first hook plate 4, and a locking protrusion 62 is provided on the side wall of the through hole of the circular through hole 61. A circular protrusion 32 is provided on the second hook plate 5, and an L-shaped slot 33 is provided on the side wall of the circular protrusion 32. The circular protrusion 32 can be placed in the circular through hole 30 for rotation, and the locking protrusion 31 can be locked in the L-shaped slot 33 to connect the first hook plate 4 with the second hook plate 5. The first hook plate 4 and the second hook plate 5 are detachably connected by the interference fit between the locking protrusion 62 and the L-shaped slot 33. When the scale lines on the upper surface of the tape 2 need to be used, the second hook plate 5 is not installed on the first hook plate 4. When the scale lines on the lower surface of the tape 2 need to be used, the second hook plate 5 is locked on the first hook plate 4.

[0110] In addition, in embodiments 6 and 7, in order to avoid the problem of inconsistent starting points caused by using the first hook plate 4 to hook the measured object and using the second hook plate 5 to hook the measured object, the connection mode of the connecting plate 3 and the tape 2 can be set to be detachable, and the connecting plate 3 can be connected with the tape 2 in an adjustable position. In this way, the measurement error caused by the different hooking points of the measured object due to the thickness of the first hook plate 4 can be avoided.

[0111] Example 8

[0112] like Fig.30 As shown, the first hook plate 4 is connected to the connecting plate 2 and is integrally formed with the first hook plate 4. The connecting plate 3 is connected to the tape 2 through the connecting pin 6. The first hook plate 4 protrudes downward from the tape 2. The second hook plate 5 is connected to the extension plate 59, and the extension plate 59 is provided with a slide rail hole 34, and the slide rail hole 34 is provided with a protrusion 35, and the protrusion 35 is arranged in pairs. The connecting pin 6 is inserted into the slide rail hole 34 and can move along the slide rail hole 34. The connecting pin 6 can be clamped between the two pairs of protrusions 35 to fix the extension plate 59 at a desired position.

[0113] In the first state, the first hook plate 4 protrudes downward from the ruler 2, and the second hook plate 5 is not installed on the connecting plate 3. In the second state, the second hook plate 5 is installed on the connecting plate 3, and the connecting pin 6 is inserted into the slide rail hole 34 and can move along the slide rail hole 34. The protrusion 35 in the slide rail hole 34 clamps the protrusion 34, and the second hook plate 5 is fixed at a desired position. At this time, the second hook plate 5 can be used to hook the object to be measured.

[0114] Example 9

[0115] like Figure 31 to Figure 34 As shown, the first hook plate 4 is connected to the connecting plate 3 and is integrally formed with the first hook plate 4. The connecting plate 3 is connected to the tape ruler 2 via a connecting pin 6. The first hook plate 4 protrudes downward from the tape ruler 2. A horizontal T-shaped slide rail hole 36 is provided on the first hook plate 4, and a pin 37 is provided on the second hook plate 5. The pin 37 can be engaged in the horizontal T-shaped slide rail hole 36 and can slide freely up and down. The second hook plate 5 has a first state and a second state during the up and down movement. By virtue of the pin 37 being engaged in the T-shaped slide rail hole 36, the second hook plate 5 can be maintained in the first state or the second state.

[0116] In order to avoid the problem of inconsistent measurement starting points caused by using the first hook plate 4 to hook the measured object and using the second hook plate 5 to hook the measured object, the connecting plate 3 is movably connected to the tape 2. The connecting pin 6 is tightly matched with the mounting hole 31, and the connecting plate 3 is movable. When the connecting plate 3 is pushed to move along the length direction of the tape 2, the connecting pin 6 is located at both ends of the length of the mounting hole 31, and the position of the connecting plate 3 is adjusted.

[0117] Example 10

[0118] like Fig.35 As shown, in the embodiment where the second hook plate 5 needs to slide up and down relative to the first hook plate 4, a positioning slider 41 is provided on the side wall of the first hook plate 4. A positioning slide groove 51 is provided on the second hook plate 5. The positioning slider 41 is inserted into the positioning slide groove 51 and can slide up and down along the positioning slide groove 51. In this way, the first hook plate 4 can be prevented from being separated from the second hook plate 5, and the second hook plate 5 can be guided during the up and down sliding process.

[0119] The tape measure of the present invention can adapt to the measurement requirements of different working environments. The tape measure can be measured on both sides, and the hook can be measured on both sides or on one side. The wall thickness of the hook measured in different ways is the same, the measurement accuracy is high, and the operation is simple and convenient. Under the premise of meeting the design load-bearing standard of the hook of the tape measure, the hook has a long service life. The structural design is simple, the production and processing cost is low, and the practicability is strong.

[0120] In the above embodiments, the magnetic pin 10, the screw 23 and the pin 37 are all embodiments of fasteners. The above embodiments of the present invention may also be combined in other ways.

[0121] In the present invention, "up", "down", "upward", "downward", "upward", "downward" and the like are based on Figure 7 , Fig. 9 , Fig.12 For reference, the relative concept used is that the upper surface 21 is above the lower surface 22 , from the upper surface 21 to the lower surface 22 is downward, and from the lower surface 22 to the upper surface 21 is upward.

[0122] The tape measure in the present invention can adapt to the measurement requirements of different working environments. The tape measure can be measured on both sides, and the ruler hook can be measured on both sides or on one side. The wall thickness of the ruler hook measured in different ways is the same, the measurement accuracy is high, and the operation is simple and convenient. Under the premise of meeting the design load-bearing standards of the ruler hook industry of the tape measure, the ruler hook has a long service life. The structural design is simple, the production and processing cost is low, and the practicality is strong. The tape measure in the present invention can be measured by using the ruler hook part to hook on the object to be measured, and can also be measured by pressing against a certain position; moreover, the movable connection between the connecting plate and the ruler tape can avoid inconsistent measurement starting points in the hooking and pressing states, and the measurement results are more accurate and more convenient to use.

Claims

1. A tape measure, characterized in that: The measuring tape comprises: case; A tape ruler, the tape ruler having an upper surface and a lower surface opposite to the upper surface, the upper surface and / or the lower surface being provided with scale lines, the tape ruler being retractable in the housing and being extendable; A ruler hook, the ruler hook comprising a first hook plate and a second hook plate; the first hook plate is connected to the ruler tape; the first hook plate protrudes downward from the lower surface of the ruler tape; The second hook plate is movably connected to the first hook plate; when the second hook plate moves relative to the first hook plate, the second hook plate moves from a state of not protruding upward from the ruler to a state of protruding upward from the upper surface of the ruler; The second hook plate is pivotally connected to the first hook plate, and the second structure plate can be switched between a first state and a second state during the pivoting movement relative to the first hook plate; The first hook plate is a flat plate extending downwardly from the lower surface of the ruler tape, two lugs are arranged on the upper parts of both sides of the first hook plate, each lug is provided with a groove with a circular cross section; the two grooves are arranged facing each other; two sections of limiting protrusions are arranged in each groove along the circumferential direction; the two sections of limiting protrusions divide the groove into two sections; the first hook plate is also provided with a matching groove, the opening of which faces upward; The second hook plate is provided with pivot protrusions at both side edges of the lower end; the pivot protrusion is provided with a stop protrusion protruding from the surface of the pivot protrusion; the second hook plate is also provided with a slide groove, and the slide groove is provided with openings on the outer surface and the lower end surface of the second hook plate; the second hook plate is also provided with a slider, and the slider is clamped in the slide groove and can slide; the slider can be pushed to move through the opening of the slide groove on the outer surface; the slider part can slide out of the slide groove through the opening of the slide groove on the lower end surface; The pivoting protrusion is inserted into the groove and can pivot in the groove; each of the stopping protrusions is located between two sections of the limiting protrusions.

2. The tape measure according to claim 1, characterized in that The first hook plate is directly connected to the ruler tape or connected to the ruler tape through a connecting plate; the connecting plate is fixedly connected or movably connected to the ruler tape.

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