Adjustable measuring tape

Abstract

The utility model provides an adjustable measuring tape, and relates to the technical field of measuring tape fixation, the adjustable measuring tape comprises a measuring tape body and a fixed seat installed at one end of the measuring tape body, the inner bottom surface of the fixed seat is symmetrically provided with two T-shaped through grooves, the through grooves are internally provided with two symmetrically arranged L-shaped rotating arms, one end of each rotating arm is fixedly connected with a connecting arm, and the other end of each rotating arm is fixedly connected with a connecting rod. By arranging a connecting gear, a connecting arm and a rotating arm, the connecting gear rotates through sliding of an inserting plate, the connecting arm and a swing arm can rotate by 90 degrees to be embedded into the ground, then the connecting arm pokes the rotating arm through continuous sliding of the inserting plate, and the rotating arm can be obliquely inserted into the ground; according to the scheme, the rotating arm can be sequentially embedded into and inserted into the land only by continuously sliding the inserting plate, and operation is smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of tape measure fixing, in particular to an adjustable tape measure. Background Art

[0002] The tape measure is a common measuring tool in daily life. The steel tape measure that we often see is commonly used in construction and decoration, and is also one of the essential tools for the family. However, when the tape measure is extended to a long length, it is easy for a single person to operate it because the tape measure strip is loose and cannot hook the object, causing inconvenience in use.

[0003] Therefore, an adjustable tape measure measuring device of the prior art, the publication number is: CN212658155U. When working, the T-bar is slid backward in the slide groove in the rectangular plate, so that the T-bar will also move backward, so that the first connecting rod and the fourth connecting rod will rotate counterclockwise, so that the third connecting rod will rotate clockwise, and then the second connecting rod will move downward, so that the first push plate fixed to the bottom of the second connecting rod will also move downward, and then the straight rod fixed to the bottom of the first push plate will move downward, and insert into the soil through the pointed cone, so that the device can be fixed on the ground; when the straight rod and the pointed cone are inserted into the soil, the switch of the electric push rod installed in the cavity is turned on, so that it pushes the second push plate to move downward, and at the same time, the second push plate will squeeze the airbag, so that the gas in the airbag flows into the piston cylinder through the air guide tube, and pushes the third push plate to move forward, so that the insertion rod fixed to the side wall of the third push plate moves forward and inserts into the soil, which plays a better strengthening role in the fixation of the device.

[0004] That is, the prior art is performed through two operations and two steps, first pushing the T-bar, and then controlling the electric push rod to extend and retract, so there is a certain degree of influencing in the operation. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides an adjustable measuring tape.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable tape measure, comprising a tape measure body and a fixed base installed at one end of the tape, the inner bottom surface of the fixed base is symmetrically provided with two T-shaped through grooves, two symmetrically arranged L-shaped rotating arms are installed in the through grooves, one end of the rotating arm is fixedly connected to a connecting arm, the inner bottom surface of the fixed base is located at the proximal ends of the two through grooves and are rotatably connected to connecting gears, four rotating arms are respectively arranged at two connecting gears in a group of two, and the two connecting gears rotate in opposite directions and at the same speed, and the two connecting arms in any group are respectively arranged on both sides of the connecting gear, and the two rotating arms and the connecting arm rotate with the center line of the connecting gear as the center, and after rotating a certain angle, they swing in opposite directions until they are inserted into the soil.

[0007] Preferably, the connecting arm is rotatably connected to the end face of the connecting gear via a spring sheet, and the end face of the connecting gear is connected to the fixing seat via a retaining spring.

[0008] Preferably, the inner bottom surface of the fixed seat is also rotatably connected to a transmission gear meshing with one of the connecting gears, the opposite end surfaces of the other connecting gear and the transmission gear both extend outward, and a plug plate is inserted into the inner wall of the fixed seat, and the bottom surface of the plug plate is provided with a tooth surface meshing with the other connecting gear and the extension of the transmission gear, and the extension length of the tooth surface is one quarter of the arc length of the connecting gear.

[0009] Preferably, a sliding block extending to the outside of the fixing seat is fixedly connected to the top surface of the plug board, and the top surface of the fixing seat is configured to be hollow and slidably connected to the sliding block.

[0010] Preferably, a slot for sliding connection with the connecting arm is provided on the inner side wall of the through groove at the position of the connecting gear.

[0011] Preferably, two stoppers are symmetrically fixedly connected to positions near the connecting gears on both sides of the plug plate, and the side of the stopper facing the plug plate is provided with an inclined surface, and the inclined surface of the stopper is used to move the connecting arm.

[0012] Preferably, the outer wall of the fixed seat is symmetrically provided with two arc grooves, a sliding seat is slidably connected in the arc groove, and fitting plates are installed at the bottom edge of the middle part of the outer wall of the sliding seat and the fixed seat, and screws are arranged between the fitting plate and the end of the tape of the tape measure body.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by setting a connecting gear, a connecting arm and a rotating arm, the connecting gear can be rotated by sliding a plug plate to realize the rotation of the connecting arm and the swing arm by ninety degrees until they are embedded in the ground, and then the plug plate is continuously slid to realize the connecting arm to move the rotating arm so that the rotating arm can be obliquely inserted into the ground. That is, in this solution, only the plug plate needs to be continuously slid to realize the embedding and insertion of the rotating arm into the ground in turn, and the operation is smooth.

[0015] 2. In the utility model, the sliding seat is slid until the three sliding seats are on the same horizontal line, and the fixed seat can be fixed on the flat tape by screws. The position of the sliding seat is adjusted by sliding the arc groove so that the three fitting plates are distributed in an arc shape, and the fixed seat can be fixed on the arc tape by screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of an adjustable tape measure is provided for the utility model;

[0017] Figure 2 The utility model provides a structural schematic diagram of an adjustable tape measure fixing seat;

[0018] Figure 3 The utility model proposes an adjustable tape measure Figure 2 Schematic diagram of the top-down structure;

[0019] Figure 4 The utility model proposes an adjustable tape measure Figure 3 Schematic diagram of the side section structure;

[0020] Figure 5 It is a structural schematic diagram of the initial state of the rotating arm of the utility model;

[0021] Figure 6 This is a structural schematic diagram of the utility model in which the rotating arm is tilted and inserted into the soil;

[0022] Figure 7 For this utility model Figure 6 Schematic diagram of the top view structure.

[0023] Legend: 1. Tape measure body; 2. Fixed seat; 3. Sliding block; 4. Arc groove; 5. Fitting plate; 6. Screw; 7. Sliding seat; 8. Insert plate; 9. Rotating arm; 10. Connecting gear; 11. Stopper; 12. Tooth surface; 13. Through groove; 14. Card slot; 15. Transmission gear; 16. Connecting arm. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] like Figure 1-7 As shown, an adjustable tape measure includes a tape measure body 1 and a fixing seat 2 installed at one end of the tape measure. The fixing seat 2 is fixed relative to the bottom surface to ensure that when the shell part of the tape measure body 1 is moved, the tape measure that is forced to be pulled out will not retract or shake:

[0027] Two T-shaped through-grooves 13 are symmetrically provided on the inner bottom surface of the fixed seat 2, and two symmetrically arranged L-shaped rotating arms 9 are installed in the through-grooves 13. One end of the rotating arm 9 is fixedly connected to a connecting arm 16, and the opposite sides of the two rotating arms 9 are arranged in a plug-in state, that is, to ensure that the two rotating arms 9 can be simultaneously swung downward and reset under the action of elastic force: the inner bottom surface of the fixed seat 2 is located at the proximal end of the two through-grooves 13 and is rotatably connected to connecting gears 10, and four rotating arms 9 are arranged in pairs at two connecting gears 10 respectively, and the two connecting gears 10 rotate in opposite directions and at the same speed. By utilizing the two connecting gears 10 to rotate at the same speed and in the opposite direction, the connecting arm 16 in the initial state can drive the rotating arm 9 to overcome the elastic force and swing toward the fixed seat 2 until entering the through-grooves. The connecting gear 10 can be rotated to realize that the connecting arm 16 and the rotating arm 9 rotate out of the through-slot 13 under the action of elastic reset to provide resistance, so as to prevent the rotating arm 9 and the connecting arm 16 from instantly escaping from the through-slot 13: the inner bottom surface of the fixed seat 2 is also rotatably connected with a transmission gear 15 meshing with one of the connecting gears 10, and the opposite end surfaces of the other connecting gear 10 and the transmission gear 15 extend outward, and the inner wall of the fixed seat 2 is plugged with a plug plate 8, and the bottom surface of the plug plate 8 is provided with a tooth surface 12 meshing with the extension of the other connecting gear 10 and the transmission gear 15, and the extension length of the tooth surface 12 is one-fourth of the arc length of the connecting gear 10, and the plug plate 8 is used to slide, and the tooth surface 12 is used to mesh with the corresponding connecting gear 10 and the transmission gear 15. The left connecting gear 10 and the transmission gear 15 are connected in a meshing connection, so that the connecting gear 10 and the transmission gear 15 on the left side rotate at the same speed, and the connecting gear 10 on the right side rotates in the opposite direction at the same speed as the transmission gear 15 under the action of the meshing connection. In addition, the extended ends of the left connecting gear 10 and the transmission gear 15 are provided to prevent the tooth surface 12 from contacting and engaging with the tooth surface of the right connecting gear 10, and the extended length of the tooth surface 12 is one-fourth of the arc length of the connecting gear 10. When the tooth surface 12 rotates to disengage from the left connecting gear 10 or the transmission gear 15, the connecting arm 16 and the rotating arm 9 just rotate ninety degrees, and at this time, the connecting arm 16 and the rotating arm 9 themselves are not affected by the elastic force: the top surface of the plug plate 8 is fixed A slider 3 extending to the outside of the fixed seat 2 is connected, and the top surface of the fixed seat 2 is set to a hollow shape slidably connected to the slider 3. The personnel realize that the fixed seat 2 drives the plug plate 8 to slide by toggling the slider 3: the two connecting arms 16 in any group are respectively arranged on both sides of the connecting gear 10, and the connecting arm 16 is rotatably connected to the end face of the connecting gear 10 through a spring, and the end face of the connecting gear 10 and the fixed seat 2 are connected through a retaining spring, and the side face of the spring is arranged parallel to the side face of the connecting gear 10. Therefore, the significance of the spring is to achieve the state that the side face of the connecting arm 16 remains parallel to the end face of the connecting gear 10 by applying a pulling force, and under the elastic force of the spring, it is ensured that when the connecting arm 16 and the rotating arm 9 are rotated downward by ninety degrees, the two rotating arms 9 will not separate, and the retaining spring is arranged at Figure 3The state in the middle is an elastically opened state, so the significance of setting the retaining spring is that after the connecting gear 10 drives the connecting arm 16 and the rotating arm 9 to rotate ninety degrees, the retaining spring elastically resets, and the tension of the retaining spring is used to prevent the connecting arm 16 and the rotating arm 9 from shaking, and after the connecting arm 16 and the rotating arm 9 rotate ninety degrees, because the tooth surface 12 is not in contact with the connecting gear 10 and the transmission gear 15, the insert plate 8 can continue to slide without causing the connecting gear 10 to rotate: the inner wall of the through groove 13 is located at the position of the connecting gear 10 and is provided with a retaining groove 14 for sliding connection with the connecting arm 16, and the positions on both sides of the insert plate 8 near the connecting gear 10 are symmetrically fixed There are two blocks 11 connected to the fixed connection, and the side of the block 11 facing the plug plate 8 is set with an inclined surface, and the inclined surface of the block 11 is used to toggle the connecting arm 16. The two rotating arms 9 and the connecting arm 16 rotate with the center line of the connecting gear 10 as the center of the circle, and after rotating a certain angle, they swing in opposite directions until they are inserted into the soil. After the connecting arm 16 and the rotating arm 9 rotate ninety degrees, when the plug plate 8 continues to slide, the inclined surface of the block 11 contacts the surface of the rotating connecting arm 16, and under the pushing action of the inclined surface, the end faces of the two connecting arms 16 at the connecting gear 10 are forced to overcome the elastic force of the spring piece and approach each other, thereby realizing that the connecting arm 16 drives the rotating arm 9 to swing to the position as shown in the figure. Figure 6 The state shown is that after being embedded in the ground, it is inserted obliquely into the ground.

[0028] In addition: two arc grooves 4 are symmetrically opened on the outer wall of the fixed seat 2, and a sliding seat 7 is slidably connected in the arc groove 4, and a fitting plate 5 is installed at the bottom edge of the middle part of the sliding seat 7 and the outer wall of the fixed seat 2, and a screw 6 is arranged between the fitting plate 5 and the end of the tape measure body 1. By sliding the sliding seat 7 until the three sliding seats 7 are on the same horizontal line, the fixed seat 2 can be fixed to the flat tape by the screw 6, and the position of the sliding seat 7 can be adjusted by sliding the arc groove 4 so that the three fitting plates 5 are distributed in an arc shape, and the fixed seat 2 can be fixed to the curved tape by the screw 6.

[0029] Working principle: fix the fixing seat 2 at the end of the tape. When in use, fit the fixing seat 2 to the ground and press it, and move the slider 3 to realize that the fixing seat 2 drives the plug plate 8 to move, and then the tooth surface 12 moves, and the tooth surface 12 drives the connecting gear 10 and the transmission gear 15 on the left to rotate ninety degrees, so that the connecting gear 10 on the right rotates in the same speed and in the opposite direction, so that the connecting arm 16 can drive the rotating arm 9 to rotate ninety degrees until it is embedded in the ground. After rotating ninety degrees, the tooth surface 12 is disengaged from the tooth surfaces of the connecting gear 10 and the transmission gear 15, and then the plug plate 8 is continuously slid, and the block 11 is used to force the connecting arm 16 to drive the rotating arm 9 to swing until it is obliquely inserted into the ground, so that the position of the fixing seat 2 is fixed.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An adjustable tape measure, comprising a tape measure body (1) and a fixing seat (2) mounted on one end of the tape measure, characterized in that: The inner bottom surface of the fixing seat (2) is symmetrically provided with two T-shaped through grooves (13), and two symmetrically arranged L-shaped rotating arms (9) are installed in the through grooves (13). One end of the rotating arm (9) is fixedly connected to a connecting arm (16), and the inner bottom surface of the fixing seat (2) is located at the adjacent ends of the two through grooves (13) and is rotatably connected to a connecting gear (10). The four rotating arms (9) are arranged in groups of two at two connecting gears (10), and the two connecting gears (10) rotate in opposite directions and at the same speed. The two connecting arms (16) in any group are arranged on both sides of the connecting gear (10), and the two rotating arms (9) and the connecting arm (16) rotate with the center line of the connecting gear (10) as the center of the circle, and after rotating a certain angle, they swing in opposite directions until they are inserted into the soil.

2. The adjustable measuring tape according to claim 1, characterized in that: The connecting arm (16) is rotatably connected to the end face of the connecting gear (10) via a spring sheet, and the end face of the connecting gear (10) and the fixing seat (2) are connected via a retaining spring.

3. The adjustable measuring tape according to claim 1, characterized in that: The inner bottom surface of the fixed seat (2) is also rotatably connected to a transmission gear (15) meshing with one of the connecting gears (10); the opposite end surfaces of the other connecting gear (10) and the transmission gear (15) extend outwards; and a plug plate (8) is inserted into the inner wall of the fixed seat (2); the bottom surface of the plug plate (8) is provided with a tooth surface (12) meshing with the extension of the other connecting gear (10) and the transmission gear (15); the extension length of the tooth surface (12) is one quarter of the arc length of the connecting gear (10).

4. The adjustable measuring tape according to claim 3, characterized in that: The top surface of the plug plate (8) is fixedly connected to a sliding block (3) extending to the outside of the fixing seat (2), and the top surface of the fixing seat (2) is arranged in a hollow shape to be slidably connected to the sliding block (3).

5. The adjustable measuring tape according to claim 1, characterized in that: The inner side wall of the through groove (13) is provided with a clamping groove (14) at the position of the connecting gear (10) for sliding connection with the connecting arm (16).

6. The adjustable measuring tape according to claim 3, characterized in that: Two stoppers (11) are symmetrically fixedly connected to the positions near the connecting gear (10) on both sides of the plug plate (8); the side of the stopper (11) facing the plug plate (8) is provided with an inclined surface, and the inclined surface of the stopper (11) is used to move the connecting arm (16).

7. The adjustable measuring tape according to claim 1, characterized in that: The outer wall of the fixed seat (2) is symmetrically provided with two arc-shaped grooves (4), a sliding seat (7) is slidably connected in the arc-shaped groove (4), and a bonding plate (5) is installed at the bottom edge of the middle part of the outer wall of the sliding seat (7) and the fixed seat (2), and a screw (6) is arranged between the bonding plate (5) and the end of the tape of the tape measure body (1).

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