A length measuring device with a support rod

Abstract

The present invention discloses a length measuring device with a support rod, belonging to the technical field of length measurement. The purpose is to provide a length measuring device with a support rod to solve the problem that existing measuring tools cannot accurately measure the length in a narrow space. It includes a housing, on which a locking screw is installed. A locking support rod and a movable support rod are connected to the housing. The movable support rod includes a first measuring handle and a first measuring head, and the locking support rod includes a second measuring handle and a second measuring head. The first measuring head can rotate along the axis of the first measuring handle, and the second measuring head can rotate along the axis of the second measuring handle. A spring reel is installed in the housing, and a wire rope is arranged on the spring reel. A measuring wheel and a guide wheel are installed in the housing. The wire rope winds around the measuring wheel, passes through the guide wheel and then penetrates into the locking support rod and is fixed to the first measuring head of the movable support rod. A reading mechanism is also installed in the housing. The present invention is applicable to length measuring devices.

Description

Technical Field

[0001] The present invention belongs to the technical field of length measurement, and particularly relates to a length measurement device with a support rod. Background Art

[0002] The existing common length measurement tools are mainly calipers, steel rulers, tape measures, curve measuring instruments, etc. Under some complex conditions such as corners, gaps, holes, narrow spaces, etc., these measurement tools cannot accurately locate for accurate measurement. There are many measurement requirements under complex conditions during machining, installation, construction, decoration and other work processes. Therefore, how to provide a measurement tool that can measure under complex conditions is an urgent problem in this field. Summary of the Invention

[0003] The purpose of the present invention is to provide a length measurement device with a support rod to solve the problem that the existing measurement tools cannot accurately measure the length in narrow spaces.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A length measurement device with a support rod includes a housing. A locking screw is installed on the housing. A locking support rod that can be telescoped along the length direction of the housing is connected to the housing. An activity support rod is installed above the locking support rod on the housing. The activity support rod includes a first measurement handle and a first measurement head. The locking support rod includes a second measurement handle and a second measurement head. The first measurement head can rotate along the axis of the first measurement handle. The second measurement head can rotate along the axis of the second measurement handle. A spring reel is installed in the housing. A wire rope is arranged on the spring reel. A measurement wheel and a guide wheel are installed in the housing. The wire rope winds around the measurement wheel, passes through the guide wheel and penetrates into the locking support rod, and then is fixed to the first measurement head of the activity support rod. A reading mechanism is also installed in the housing.

[0006] Further, the reading mechanism includes a display screen installed in the housing. The display screen is electrically connected to a microprocessor. The microprocessor is electrically connected to a counter. The counter is connected to the measurement wheel. A battery is also provided. The battery is respectively electrically connected to the display screen, the microprocessor and the counter. A number of buttons are installed on the display screen.

[0007] Further, the battery is a rechargeable battery.

[0008] Further, the reading mechanism includes a dial and a gear set installed in the housing. The gear set is connected to the measurement wheel. The gear set is connected with a pointer.

[0009] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0010] 1. In the present invention, it includes a housing on which a locking screw is installed. A locking support rod that can be telescoped along the length direction of the housing is connected to the housing. An active support rod is installed above the locking support rod on the housing. The active support rod includes a first measuring handle and a first measuring head. The locking support rod includes a second measuring handle and a second measuring head. The first measuring head can rotate along the axis of the first measuring handle, and the second measuring head can rotate along the axis of the second measuring handle. A spring reel is installed inside the housing, and a wire rope is arranged on the spring reel. A measuring wheel and a guide wheel are installed inside the housing. The wire rope is wound around the measuring wheel, passes through the guide wheel, penetrates into the locking support rod, and is fixed to the first measuring head of the active support rod. A reading mechanism is also installed inside the housing.

[0011] With this setting, during measurement, the active support rod and the locking support rod are used to respectively specify the starting point and the ending point. Since the locking support rod moves and pulls out the wire rope on the spring reel, the wire rope is measured by the measuring wheel handle and then displayed through the reading mechanism, so as to read the measured value. The present invention can not only conveniently and accurately perform conventional length measurement, but also accurately perform length measurement in a complex environment, solving the problem that existing conventional measurement tools cannot accurately measure the length in a narrow space.

[0012] 2. In the present invention, the reading mechanism includes a display screen installed inside the housing. The display screen is electrically connected to a microprocessor, and the microprocessor is electrically connected to a counter. The counter is connected to the measuring wheel. A battery is also provided, and the battery is electrically connected to the display screen, the microprocessor, and the counter respectively. A number of buttons are installed on the display screen. With this setting, the battery supplies power to the display screen, the microprocessor, and the counter. After the measuring wheel measures the length of the pulled-out wire rope, it is processed by the counter and the microprocessor and then the reading is displayed on the display screen, which is convenient for observing and reading the measurement data.

[0013] 3. In the present invention, the reading mechanism includes a dial and a gear set installed inside the housing. The gear set is connected to the measuring wheel, and the gear set is connected to a pointer. With this setting, the measuring wheel measures the length of the pulled-out wire rope and transmits it through the gear set to the pointer, causing the pointer to rotate, so as to perform reading on the dial. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings, where:

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Reference numerals: 1 - battery, 2 - button, 3 - display screen, 4 - microprocessor, 5 - counter, 6 - measuring wheel, 7 - guide wheel, 8 - first measuring handle, 9 - first measuring head, 10 - second measuring head, 11 - second measuring handle, 12 - locking screw, 13 - spring reel, 14 - housing. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0019] It should be noted that: reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and for simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0021] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0022] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] A length measuring device with a support rod, comprising a housing, a locking screw is installed on the housing, a locking support rod that can be telescoped along the length direction of the housing is connected to the housing, a movable support rod is installed above the locking support rod on the housing. The movable support rod includes a first measuring handle and a first measuring head, the locking support rod includes a second measuring handle and a second measuring head, the first measuring head can rotate along the axis of the first measuring handle, the second measuring head can rotate along the axis of the second measuring handle, a spring reel is installed in the housing, a wire rope is arranged on the spring reel, a measuring wheel and a guide wheel are installed in the housing, the wire rope is wound around the measuring wheel, passes through the guide wheel and penetrates into the locking support rod and then is fixed to the first measuring head of the movable support rod, and a reading mechanism is also installed in the housing.

[0024] Furthermore, the reading mechanism includes a display screen installed in the housing, the display screen is electrically connected to a microprocessor, the microprocessor is electrically connected to a counter, the counter is connected to the measuring wheel, and a battery is also provided. The battery is respectively electrically connected to the display screen, the microprocessor, and the counter, and several buttons are installed on the display screen.

[0025] Furthermore, the battery is a rechargeable battery.

[0026] Furthermore, the reading mechanism includes a dial and a gear set installed in the housing, the gear set is connected to the measuring wheel, and the gear set is connected to a pointer.

[0027] In the implementation process of the present invention, during measurement, the starting point and the ending point are respectively specified by the movable support rod and the locking support rod. Since the locking support rod moves, the wire rope on the spring reel is pulled out. After being measured by the measuring wheel measuring handle, the wire rope is displayed through the reading mechanism, so as to read the measured value. The present invention can not only conveniently and accurately perform conventional length measurement, but also accurately perform length measurement in complex environments, solving the problem that existing conventional measurement tools cannot accurately measure the length in narrow spaces. The reading mechanism includes a display screen installed in the housing. The display screen is electrically connected to a microprocessor. The microprocessor is electrically connected to a counter. The counter is connected to the measuring wheel. A battery is also provided. The battery is respectively electrically connected to the display screen, the microprocessor, and the counter. A plurality of buttons are installed on the display screen. The battery is a rechargeable battery. Through this setting, the battery supplies power to the display screen, the microprocessor, and the counter. After the measuring wheel measures the length of the pulled-out wire rope, it is processed by the counter and the microprocessor and then read and displayed on the display screen, which is convenient for observing and reading the measurement data. The reading mechanism includes a dial and a gear set installed in the housing. The gear set is connected to the measuring wheel. The gear set is connected with a pointer. Through this setting, the measuring wheel measures the length of the pulled-out wire rope and is transmitted through the gear set to the pointer, causing the pointer to rotate, so as to read on the dial.

[0028] Embodiment 1

[0029] A length measuring device with a support rod, including a housing. A locking screw is installed on the housing. A locking support rod that can be telescoped along the length direction of the housing is connected to the housing. An activity support rod is installed above the locking support rod on the housing. The activity support rod includes a first measuring handle and a first measuring head. The locking support rod includes a second measuring handle and a second measuring head. The first measuring head can rotate along the axis of the first measuring handle. The second measuring head can rotate along the axis of the second measuring handle. A spring reel is installed in the housing. A wire rope is arranged on the spring reel. A measuring wheel and a guide wheel are installed in the housing. The wire rope winds around the measuring wheel, passes through the guide wheel, penetrates into the locking support rod, and is fixed to the first measuring head of the activity support rod. A reading mechanism is also installed in the housing.

[0030] Through this setting, during measurement, the starting point and the ending point are respectively specified by the movable support rod and the locking support rod. Since the locking support rod moves, the wire rope on the spring reel is pulled out. After being measured by the measuring wheel measuring handle, the wire rope is displayed through the reading mechanism, so as to read the measured value. The present invention can not only conveniently and accurately perform conventional length measurement, but also accurately perform length measurement in complex environments, solving the problem that existing conventional measurement tools cannot accurately measure the length in narrow spaces.

[0031] Embodiment 2

[0032] On the basis of Embodiment 1, the reading mechanism includes a display screen installed in the housing. The display screen is electrically connected to a microprocessor, and the microprocessor is electrically connected to a counter. The counter is connected to the measuring wheel. A battery is also provided, and the battery is electrically connected to the display screen, the microprocessor, and the counter respectively. A plurality of buttons are installed on the display screen. With this setting, the battery powers the display screen, the microprocessor, and the counter. After the measuring wheel measures the length of the pulled-out wire rope, it is processed by the counter and the microprocessor and then the reading is displayed on the display screen, which is convenient for observing and reading the measurement data.

[0033] Embodiment 3

[0034] On the basis of Embodiment 2, the battery is a rechargeable battery.

[0035] Embodiment 4

[0036] On the basis of Embodiment 1, the reading mechanism includes a dial and a gear set installed in the housing. The gear set is connected to the measuring wheel, and the gear set is connected to a pointer. With this setting, the measuring wheel measures the length of the pulled-out wire rope, and is transmitted through the gear set and fed back to the pointer, causing the pointer to rotate, so as to read the value on the dial.

[0037] The above are the embodiments of the present invention. The foregoing are the various preferred embodiments of the present invention. If the preferred implementation manners in the various preferred embodiments are not obviously self-contradictory or premised on a certain preferred implementation manner, the various preferred implementation manners can be arbitrarily superimposed and combined. The embodiments and the specific parameters in the embodiments are only for clearly expressing the verification process of the invention, and are not used to limit the patent protection scope of the present invention. The patent protection scope of the present invention still depends on its claims. All equivalent structural changes made by using the content of the specification and drawings of the present invention should be included in the protection scope of the present invention by the same token.

Claims

1. A length measuring device with a support rod, characterized in that, It includes a housing (14) on which a locking screw (12) is installed. A locking support rod that can be telescoped along the length direction of the housing (14) is connected to the housing (14). An active support rod is installed above the locking support rod on the housing (14). The active support rod includes a first measuring handle (8) and a first measuring head (9). The locking support rod includes a second measuring handle (11) and a second measuring head (10). The first measuring head (8) can rotate along the axis of the first measuring handle (9). The second measuring head (10) can rotate along the axis of the second measuring handle (11). A spring reel (13) is installed in the housing (14). A wire rope is arranged on the spring reel (13). A measuring wheel (6) and a guide wheel (7) are installed in the housing (14). The wire rope winds around the measuring wheel (6), passes through the guide wheel (7), penetrates into the locking support rod, and is fixed to the first measuring head (9) of the active support rod. A reading mechanism is also installed in the housing (14). The reading mechanism includes a display screen (3) installed in the housing (14). The display screen (3) is electrically connected to a microprocessor (4). The microprocessor (4) is electrically connected to a counter (5). The counter (5) is connected to the measuring wheel (6). A battery (1) is also provided. The battery (1) is electrically connected to the display screen (3), the microprocessor (4), and the counter (5) respectively. A number of buttons (2) are installed on the display screen (3).

2. The circuit of a length measuring device with a support rod according to claim 1, characterized in that The battery (1) is a rechargeable battery.

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