Metering device

Abstract

The utility model relates to the technical field of metering devices, and provides a metering device which comprises a protective casing, a locking mechanism is embedded in a casing body of the protective casing, a fixed block is fixedly installed on one side of the surface of the casing body of the protective casing, a movable block is arranged on the surface of one side of the fixed block in an attached mode, and through the arranged locking mechanism, the movable block is fixed on the casing body of the protective casing. The locking mechanism is arranged in the protection machine shell, so that dust and broken snow residues are blocked and protected, meanwhile, locking is changed from push-pull to press, and therefore the situation that in the push-pull process, dust and broken snow residues enter an inner groove, and consequently equipment cannot be used due to blockage is reduced, and the service life of the equipment is prolonged. And meanwhile, the distance of the elastic telescopic rod can be adjusted according to different thicknesses of a second spring and a graduated scale in the protective machine shell while locking and unlocking of the lock pin and the connecting block are facilitated through the first spring, so that the use convenience is improved while protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of metering devices, and particularly relates to a metering device. Background Art

[0002] When building materials enter the site, it is necessary to mark the diameter identification of the materials. However, during the construction process, some materials are cut into several sections due to processing needs, and some materials will lose the diameter identification. When they are reused, it is necessary to measure them again.

[0003] After retrieval, the existing patent (Publication No.: CN 217210675) discloses a metering device, which belongs to the technical field of measuring instruments. The inside of the ruler body has a cavity, and a first long hole communicating with the cavity is opened on the front side surface of the ruler body. The front slide rail and the rear slide rail are respectively arranged on the two side surfaces of the slide rail plate. The upper end of the slide rail plate is vertically and fixedly connected to the upper end inside the ruler body, and the lower end of the slide rail plate is vertically and fixedly connected to the upper end surface of the partition plate. The partition plate is fixed inside the ruler body. The slider is arranged in the first long hole and is slidably connected to the front slide rail of the slide rail plate. A second long hole communicating with the cavity is opened on the rear side of the ruler body. The upper end of the bottom plate passes through the second long hole and is slidably connected to the rear slide rail of the slide rail plate. The slider and the bottom plate are connected by a pulling-back mechanism. Scale lines are arranged on the front side surface of the ruler body. The utility model clamps the material to be measured through the cooperation of the ruler body and the slider, and reads the value on the scale line to obtain the measurement result. The device has a simple structure, is easy to operate, and improves work efficiency.

[0004] However, in the above solution, since the use sites are mostly in environments with a lot of dust and snow residue such as equipment processing and outdoors, dust and snow residue will enter the detection equipment during the pushing and pulling process when in use, resulting in situations such as jamming and inability to use during the use of the equipment.

[0005] In view of this, the utility model provides a metering device. Content of the Utility Model

[0006] The utility model provides a metering device, which solves the problems of the metering device in the related technology.

[0007] The technical solution of the utility model is as follows: A metering device includes a protective housing, a locking mechanism is embedded in the housing of the protective housing, a second spring is arranged inside the housing of the protective housing, a fixed block is fixedly installed on one side of the surface of the protective housing, a movable block is arranged in a fitting manner on one side surface of the fixed block, and a scale is fixedly installed on one side surface of the movable block.

[0008] Preferably, the locking mechanism includes a button, a connecting block, a locking pin, a ball shaft, a first spring, a limiting ring, an elastic telescopic rod and a pressing head.

[0009] Preferably, a button is embedded in the inner wall of the snap ring of the locking mechanism. A connecting block is fixedly arranged at the bottom of the button. A locking pin is embedded in an inner groove on one side surface of the connecting block. A ball shaft is fixedly arranged at the bottom of the pin body of the locking pin. A first spring is sleeved on the outer surface of the connecting block. The bottom of the first spring is fixedly connected to a limiting ring. A resilient telescopic rod is fixedly installed at the bottom of the connecting block. A pressing head is fixedly arranged at the bottom of the resilient telescopic rod.

[0010] Preferably, the button is embedded in the shape of a hemisphere at the top of the snap ring of the locking mechanism. The snap ring of the locking mechanism is embedded and fixedly clamped between the casings of the protective housing.

[0011] Preferably, the inner groove on the surface of the connecting block is in a closed heart shape structure. The turning positions at the top and bottom of the inner groove on the surface of the connecting block are arranged in a staggered manner with the upper left and lower right. The outer shape of the locking pin is in an "L" shape structure. One end of the top corner of the locking pin is embedded in the inner groove of the connecting block.

[0012] Preferably, the limiting ring is sleeved and installed at the bottom of the block body of the connecting block. The outer side wall of the limiting ring is embedded in the inner wall of the casing of the protective housing. The two ends of the first spring are respectively fixed to the bottom surface of the button and the two top ends of the limiting ring.

[0013] Preferably, the outer shape of the pressing head is in a semi-circular structure. The surface material of the pressing head is made of rubber. The whole pressing head protrudes from the inner wall surface of the casing of the protective housing and is located in the inner cavity.

[0014] Preferably, outer claws and inner claws are arranged on the bottom and side surfaces of the fixed block and the movable block. Measuring scales are engraved on the surfaces of the fixed block and the movable block. The two ends of the scale are respectively fixed to the side surface of the movable block and the end of the second spring. The material of the scale is flexible and conforms to the material of a tape measure.

[0015] The working principle and beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, through the locking mechanism arranged, by arranging the locking mechanism inside the protective housing, dust and snow residue are blocked for protection. At the same time, by changing the locking from pushing and pulling to pressing, it is beneficial to reduce the situation that dust and snow residue enter the inner groove during the pushing and pulling process, resulting in equipment jamming and other unusable situations. At the same time, the first spring facilitates the locking and unlocking of the locking pin and the connecting block. The resilient telescopic rod can also adjust the distance according to the thickness of the second spring and the scale in the protective housing, which is beneficial to increase the protection and the convenience of use.

[0017] 2. In the present utility model, through the arrangement of the second spring and the scale, according to the arrangement of the second spring, it is convenient to drive the scale to enter the inside of the protective housing. At the same time, through the arrangement of the fixed block and the movable block, when measuring, the movable block is pulled to drive the scale to extend out from the inside of the protective housing, so as to facilitate the measurement of objects with different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of the protective housing of the present utility model;

[0021] Figure 3 is a schematic diagram of the locking mechanism structure of the present utility model;

[0022] Figure 4 is a schematic diagram of the positions of the locking pin and the ball shaft of the present utility model;

[0023] Figure 5 is a schematic diagram of the movable block and the scale of the present utility model.

[0024] In the figure: 1. Protective housing; 2. Locking mechanism; 21. Button; 22. Connecting block; 23. Locking pin; 24. Ball shaft; 25. First spring; 26. Limiting ring; 27. Elastic telescopic rod; 28. Pressing head; 3. Second spring; 4. Fixed block; 5. Movable block; 6. Scale. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] Embodiment 1

[0027] A preferred embodiment of a metering device provided by the present utility model is as Figures 1 to 5 shown: A metering device includes a protective housing 1, a locking mechanism 2 is embedded in the housing of the protective housing 1, a second spring 3 is arranged inside the housing of the protective housing 1, a fixed block 4 is fixedly installed on one side of the surface of the protective housing 1, a movable block 5 is attached to one side surface of the fixed block 4, and a scale 6 is fixedly installed on one side surface of the movable block 5.

[0028] In this embodiment, outer claws and inner claws are provided on the bottom and side surfaces of the fixed block 4 and the movable block 5. Measuring scales are engraved on the surfaces of the fixed block 4 and the movable block 5. Both ends of the scale 6 are fixed to the side surface of the movable block 5 and the end of the second spring 3 respectively. The material of the scale 6 is flexible and conforms to the material of the tape measure. Through the arrangement of the fixed block 4 and the movable block 5, when measuring an object, it is convenient to pull the movable block 5 to extend the scale 6 out of the inner cavity of the protective housing 1, and count according to the scales of the fixed block 4 and the movable block 5, which is beneficial to measure the object.

[0029] Embodiment 2

[0030] On the basis of Embodiment 1, a preferred embodiment of a metering device provided by the present utility model is as Figures 1 to 5 shown: The locking mechanism 2 includes a button 21, a connecting block 22, a locking pin 23, a ball shaft 24, a first spring 25, a limit ring 26, an elastic telescopic rod 27 and a pressing head 28. The button 21 is embedded in the inner wall of the snap ring of the locking mechanism 2. The bottom of the button 21 is fixedly provided with a connecting block 22. The inner groove of one side surface of the connecting block 22 is embedded with a locking pin 23. The bottom of the needle body of the locking pin 23 is fixedly provided with a ball shaft 24. The outer surface of the connecting block 22 is sleeved with a first spring 25. The bottom of the first spring 25 is fixedly connected with a limit ring 26. The bottom of the connecting block 22 is fixedly installed with an elastic telescopic rod 27. The bottom of the elastic telescopic rod 27 is fixedly provided with a pressing head 28.

[0031] In this embodiment, the button 21 is embedded in the form of a hemisphere at the top of the snap ring of the locking mechanism 2. The snap ring of the locking mechanism 2 is embedded and fixedly clamped between the housings of the protective housing 1. By fixedly arranging the snap ring of the locking mechanism 2 on the inner wall of the housing of the protective housing 1, the stability of the locking mechanism 2 during pressing is facilitated, and the displacement of the button 21 in the protective housing 1 caused by the reaction force of the first spring 25 during use is prevented.

[0032] In this embodiment, the inner groove on the surface of the connecting block 22 has a closed heart-shaped structure. The turning positions at the top and bottom of the inner groove on the surface of the connecting block 22 are arranged in a top-left and bottom-right dislocation. The outer shape of the locking pin 23 is an "L" - shaped structure. One end of the top corner of the locking pin 23 is embedded in the inner groove of the connecting block 22. Through the arrangement of the connecting block 22 and the locking pin 23, when the button 21 is pressed, the connecting block 22 moves downward, so that the locking pin 23 moves along the bottom of the chute of the connecting block 22 to the top of the chute, thereby locking the connecting block 22.

[0033] In this embodiment, the limiting ring 26 is sleeved and installed at the bottom of the block body of the connecting block 22. The outer side wall of the limiting ring 26 is embedded in the inner wall of the protective housing 1. The two ends of the first spring 25 are respectively fixed to the bottom surface of the button 21 and the two top ends of the limiting ring 26. Through the arrangement of the first spring 25, it is convenient to lock and fix the connecting block 22 with the locking pin 23 after the button 21 is pressed for the first time. When the button 21 is pressed a second time, the connecting block 22 rises under the rebounding force of the first spring 25, causing the locking pin 23 to move to the bottom of the inner groove of the connecting block 22, thus playing an unlocking role.

[0034] In this embodiment, the external shape of the pressing head 28 is a semi-circular structure, and the surface material of the pressing head 28 is rubber. The whole pressing head 28 protrudes from the inner wall surface of the protective housing 1 and is located in the inner cavity. Through the setting of the rubber material on the surface of the pressing head 28, when pressed, the pressing head 28 squeezes and fixes the second spring 3 and the scale 6 in the inner cavity of the protective housing 1. At the same time, due to the rubber material, the friction force of the pressing surface is increased, which is beneficial to the stability of the second spring 3 and the scale 6 during locking and prevents side slipping.

[0035] The working principle and usage process of the present utility model are as follows: First, hold the protective housing 1, and then pull the movable block 5. According to the outer and inner sides of the object to be measured, adjust the measuring positions of the fixed block 4 and the movable block 5. For example, when measuring the outer dimension, pull the movable block 5 and place the object between the distances of the fixed block 4 and the movable block 5, and then release the movable block 5. Since the second spring 3 contracts and drives the scale 6 to retract, the fixed block 4 and the movable block 5 clamp the surface of the object to be measured. Then, read the measurement by observing the scale 6 and the scales on the surfaces of the fixed block 4 and the movable block 5. When it is necessary to detect whether the surface dimensions of the object are consistent or measure other objects with a fixed dimension, just press the button 21 on the locking mechanism 2, so that the button 21 drives the connecting block 22 to move downward. In this way, the locking pin 23 can move along the inner groove on the surface of the connecting block 22, move from the bottom of the inner groove to the top of the inner groove and lock the connecting block 22. While the connecting block 22 is moving, it drives the elastic telescopic rod 27, so that the pressing head 28 squeezes and fixes the scale 6 and the second spring 3 inside the protective housing 1. In this way, without the pulling of the second spring 3 on the scale 6, the distance between the fixed block 4 and the movable block 5 remains stable and unchanged, so that the measurement of the object surface can be moved and data can be measured for other identical objects. After the measurement is completed, press the button 21 again, so that the first spring 25 drives the connecting block 22 to move upward. In this way, the locking pin 23 releases the fixation of the connecting block 22, causing the pressing head 28 to disengage from the surface of the scale 6, and the second spring 3 drives the scale 6 to retract into the protective housing 1.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A metering device, comprising a protective housing (1), characterized in that: The protective housing (1) has a locking mechanism (2) embedded in the housing, a second spring (3) is arranged inside the housing of the protective housing (1), a fixed block (4) is fixedly mounted on one side of the housing surface of the protective housing (1), a movable block (5) is fitted on one side of the fixed block (4), and a scale (6) is fixedly mounted on one side of the movable block (5).

2. A measuring device according to claim 1, characterized in that: The locking mechanism (2) comprises a button (21), a connecting block (22), a locking pin (23), a ball shaft (24), a No. 1 spring (25), a limiting ring (26), an elastic telescopic rod (27) and a pressing head (28).

3. A measuring device according to claim 2, characterized in that: A button (21) is embedded in the inner wall of the clamping ring of the locking mechanism (2), a connecting block (22) is fixedly arranged at the bottom of the button (21), a locking pin (23) is embedded in the inner groove of one side surface of the connecting block (22), a ball shaft (24) is fixedly arranged at the bottom of the needle body of the locking pin (23), a No. 1 spring (25) is sleeved and installed on the outer surface of the connecting block (22), the bottom of the No. 1 spring (25) is fixedly connected to a limiting ring (26), an elastic telescopic rod (27) is fixedly arranged at the bottom of the connecting block (22), and a pressure head (28) is fixedly arranged at the bottom of the elastic telescopic rod (27).

4. A measuring device according to claim 3, characterized in that: The button (21) is in the form of a hemisphere and is embedded in the top of a clamping ring of the locking mechanism (2); the clamping ring of the locking mechanism (2) is embedded in the housing of the protective housing (1) to be clamped and fixed.

5. A measuring device according to claim 3, characterized in that: The inner groove on the surface of the connection block (22) is in a closed heart-shaped structure, the top and bottom turning positions of the inner groove on the surface of the connection block (22) are staggered in an upper left, lower right and lower right manner, the outer shape of the locking pin (23) is in an "L"-shaped structure, and the top corner end of the locking pin (23) is embedded in the inner groove of the connection block (22).

6. A measuring device according to claim 3, characterized in that: The limiting ring (26) is sleeved and installed on the bottom of the block body of the connecting block (22), the outer wall of the limiting ring (26) is embedded in the inner wall of the protective housing (1), and the two ends of the first spring (25) are respectively fixed to the bottom surface of the button (21) and the two ends of the top of the limiting ring (26).

7. A measuring device according to claim 3, characterized in that: The external shape of the pressure head (28) is a semicircular structure, the surface material of the pressure head (28) is a rubber material, and the pressure head (28) protrudes as a whole from the inner wall surface of the protective casing (1) and is located in the inner cavity.

8. A measuring device according to claim 1, characterized in that: The bottom and side surfaces of the fixed block (4) and the movable block (5) are both provided with outer claws and inner claws, and the surfaces of the fixed block (4) and the movable block (5) are engraved with measuring rulers, and the two ends of the scale ruler (6) are respectively fixed to the side surface of the movable block (5) and the end of the second spring (3), and the material of the scale ruler (6) is consistent with that of the tape measure and has flexibility.

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