Relay box of water flow standard device

Abstract

The utility model discloses a relay box of a water flow standard device, which relates to the technical field of flow testing devices and comprises an outer box body, an inner box body and a box cover, and the box cover is arranged on the outer box body. Double sealing of the relay box can be achieved through the outer sealing rubber strip and the inner sealing rubber strip, the sealing effect is good, the water absorption sponge is arranged in the water blocking groove, when water passes through the outer sealing rubber strip, the water can be absorbed by the water absorption sponge in the water blocking groove, and therefore the probability that the water continues to pass through the inner sealing rubber strip is reduced, and the service life of the relay box is prolonged. According to the relay box, the clamping piece and the elastic clamping seat are arranged, the clamping piece and the elastic clamping seat can be directly clamped and fixed when the box cover and the box body are closed, compared with an existing screw turning fixing mode, the waterproof effect is greatly improved, and the waterproof effect is improved. The device is more convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of flow test devices, in particular to a water flow standard device relay box. Background Art

[0002] The water flow standard device is a measuring instrument used in the field of mechanics. It is used for calibration, testing, prototype testing, technical services, etc. of flow and other parameters of liquid flow meters such as electromagnetic flowmeters, turbine flowmeters, ultrasonic flowmeters, vortex flowmeters, mass flowmeters, heat meters, water meters, etc. The water flow standard device relay box is used to connect the signal lines in the water flow standard device. To ensure the reliability and safety of the connection, most of the existing relay boxes are sealed in structure, mainly to prevent external air pressure, humidity and other factors from affecting the inside of the junction box.

[0003] After searching, patent authorization announcement number CN 216869712 U discloses a water flow standard device relay box, "including a box body and a box cover, the box body is integrally formed, and its top end face is a step end face, the top end face of the step end face is provided with a first groove, and the bottom end face of the step end face is provided with a second groove; a second sealing ring is provided in the first groove, and a second sealing ring is provided in the second groove, and the box body and the box cover are fastened by rotating bolts." It achieves a double sealing effect by arranging the first and second sealing rings, and achieves the effect of convenient disassembly and assembly of the box body and the box cover by arranging the rotating bolts. However, the sealing ring is usually made of rubber, and aging problems will occur after long-term use, and the sealing effect will gradually deteriorate. The water-blocking sealing effect of the sealing ring alone is still not good enough, and the sealing performance still has room for improvement. In addition, the above-mentioned relay box needs to be manually tightened with bolts when disassembling and assembling, and the disassembly and assembly is still not convenient enough. Utility Model Content

[0004] The purpose of the utility model is to provide a water flow standard device relay box to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water flow standard device relay box comprises an outer box body, an inner box body and a box cover, wherein the outer box body is provided with a box cover, the rear portion of the box cover is connected to a hinge installed at the rear portion of the outer box body, the inner box body is provided inside the outer box body, a circle of water blocking grooves is provided between the inner box body and the outer box body, the water blocking grooves are filled with absorbent sponges, a circle of outer sealing grooves and a circle of inner sealing grooves are respectively provided at the top of the outer box body and the top of the inner box body, an outer sealing strip and an inner sealing strip are respectively installed at the bottom surface of the box cover facing the outer sealing groove and the inner sealing groove, two clamps are installed at the front end of the box cover, and the clamps are adapted to elastic clamping seats correspondingly installed on the surface of the outer box body.

[0007] As a further solution of the utility model: the height of the inner box body is higher than that of the outer box body.

[0008] As a further solution of the utility model: the clamping member includes a handle, an elastic clamp and a torsion spring pin, a torsion spring pin is installed on the top of the handle, both ends of the torsion spring pin are fixedly connected to the outer box body, an elastic clamp is installed on the inner side of the handle, and the elastic clamp is adapted to the size of the clamping slot opened at the bottom of the elastic clamping seat.

[0009] As a further solution of the utility model: a carrying handle is installed on the box cover.

[0010] As a further solution of the utility model: a through-type installation hole is provided between the outer box body and the inner box body, and a cable fixing head is installed in the installation hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a water-blocking groove, an outer sealing strip and an inner sealing strip. The outer sealing strip and the inner sealing strip can realize double sealing of the relay box, so that the sealing effect is better. A water-absorbing sponge is installed in the water-blocking groove. When water passes through the outer sealing strip, it can be absorbed by the water-absorbing sponge in the water-blocking groove, thereby reducing the probability of water continuing to pass through the inner sealing strip. The water-blocking groove cooperates with the outer sealing strip and the inner sealing strip to realize a triple waterproof effect, further reducing the possibility of water entering the relay box.

[0013] 2. The utility model provides a clamp and an elastic clamp seat, which can be directly clamped and fixed when the box cover and the box body are closed. Compared with the existing screw fixing method, the utility model is more convenient to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A side cross-sectional view of a water flow standard device with the relay box closed.

[0015] Figure 2 This is a schematic diagram of the structure of a water flow standard device when the relay box is opened.

[0016] Figure 3 A water flow standard device relay box Figure 1 A magnified view of the structure at center.

[0017] 1. Outer box body; 2. Box cover; 3. Hinge; 4. Inner box body; 5. Water blocking groove; 6. Water-absorbing sponge; 7. Outer sealing strip; 8. Inner sealing strip; 9. Outer sealing groove; 10. Inner sealing groove; 11. Clamp; 1101. Handle; 1102. Elastic clamp; 1103. Torsion spring pin; 12. Elastic clamp seat; 13. Cable fixing head; 14. Mounting hole; 15. Carrying handle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 In an embodiment of the utility model, a relay box of a water flow standard device comprises an outer box body 1, an inner box body 4 and a box cover 2, the outer box body 1 is provided with a box cover 2, the rear part of the box cover 2 is connected with a hinge 3 installed at the rear part of the outer box body 1, the inner box body 4 is provided inside the outer box body 1, a circle of water blocking groove 5 is provided between the inner box body 4 and the outer box body 1, the water blocking groove 5 is filled with a water-absorbing sponge 6, the water-absorbing sponge 6 can be taken out and replaced regularly or dried for reuse, a circle of outer sealing groove 9 and a circle of inner sealing groove 10 are respectively provided at the top of the outer box body 1 and the top of the inner box body 4, an outer sealing strip 7 and an inner sealing strip 8 are respectively installed at the bottom surface of the box cover 2 facing the outer sealing groove 9 and the inner sealing groove 10, a through-type mounting hole 14 is provided between the outer box body 1 and the inner box body 4, and a cable fixing head 13 is installed in the mounting hole 14.

[0020] See also Figure 1 and Figure 3 Two clamps 11 are installed at the front end of the box cover 2, and the clamps 11 are adapted to the elastic clamping seat 12 correspondingly installed on the surface of the outer box body 1. The clamps 11 include a handle 1101, an elastic clamp head 1102 and a torsion spring pin 1103. A torsion spring pin 1103 is installed on the top of the handle 1101, and both ends of the torsion spring pin 1103 are fixedly connected to the outer box body 1. An elastic clamp head 1102 is installed on the inner side of the handle 1101, and the elastic clamp head 1102 is adapted to the size of the clamping groove opened at the bottom of the elastic clamping seat 12. The torsion spring pin 1103 is to install the torsion spring on the pin, one end of the torsion spring is fixedly connected to the pin, and the other end is fixedly connected to the handle 1101, so that the clamp 11 will generate torque or rotational force, and only by rotating the clamp 11 with force can the torque or rotational force of the torsion spring separate the clamp 11 from the elastic clamping seat 12, so that the connection between the box cover 2 and the outer box body 1 can be made firmer, thereby ensuring the sealing of the relay box.

[0021] See also Figure 1-2 The height of the inner box body 4 is higher than that of the outer box body 1. This design can facilitate the inner box body 4 to block the water entering the outer box body 1, thereby improving the waterproof capability.

[0022] See also Figure 1-2A carrying handle 15 is installed on the box cover 2. The setting of the carrying handle 15 can facilitate personnel to carry the relay box, thereby improving the convenience of carrying.

[0023] The working principle of the utility model is:

[0024] During use, when the box cover 2 is covered on the outer box body 1, the elastic clamp head 1102 in the clamp 11 will rotate from the top of the elastic clamp seat 12 to the bottom of the elastic clamp seat 12, and be clamped in the clamping groove at the bottom of the elastic clamp seat 12, so as to fix the box cover 2 and the outer box body 1. At the same time, the outer sealing strip 7 and the inner sealing strip 8 on the bottom surface of the box cover 2 will enter the outer sealing groove 9 and the inner sealing groove 10 respectively, so as to seal the box cover 2 and the outer box body 1 as well as the box cover 2 and the inner box body 4. When external water enters the outer box body 1 through the outer sealing strip 7, the water-absorbing sponge 6 arranged in the water-blocking groove 5 will absorb the entering water, so as to prevent the water from further penetrating into the inner box body 4.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water flow standard device relay box, comprising an outer box body (1), an inner box body (4) and a box cover (2), characterized in that: The outer box body (1) is provided with a box cover (2), the rear part of the box cover (2) is connected to a hinge (3) installed at the rear part of the outer box body (1), the inner box body (4) is provided inside the outer box body (1), a circle of water blocking grooves (5) is provided between the inner box body (4) and the outer box body (1), the water blocking grooves (5) are filled with water absorbing sponges (6), the top of the outer box body (1) and the top of the inner box body (4) are respectively provided with a circle of outer sealing grooves (9) and a circle of inner sealing grooves (10), the bottom surface of the box cover (2) is respectively provided with an outer sealing strip (7) and an inner sealing strip (8) at the position of the outer sealing groove (9) and the inner sealing groove (10), and two clamps (11) are installed at the front end of the box cover (2), and the clamps (11) are adapted to elastic clamping seats (12) correspondingly installed on the surface of the outer box body (1).

2. A water flow standard device relay box according to claim 1, characterized in that: The height of the inner box body (4) is higher than that of the outer box body (1).

3. A water flow standard device relay box according to claim 1, characterized in that: The clamping member (11) comprises a handle (1101), an elastic clamping head (1102) and a torsion spring pin shaft (1103); the torsion spring pin shaft (1103) is installed at the top of the handle (1101); both ends of the torsion spring pin shaft (1103) are fixedly connected to the outer box body (1); the inner side of the handle (1101) is installed with an elastic clamping head (1102); the elastic clamping head (1102) is adapted to the size of a clamping slot provided at the bottom of the elastic clamping seat (12).

4. A water flow standard device relay box according to claim 1, characterized in that: A carrying handle (15) is installed on the box cover (2).

5. A water flow standard device relay box according to claim 1, characterized in that: A through-type mounting hole (14) is provided between the outer box body (1) and the inner box body (4), and a cable fixing head (13) is installed in the mounting hole (14).

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