A device for fixing equipment identification signs

Abstract

This utility model relates to the field of sign installation technology, aiming to solve the problems of existing fixing devices where bolts and clamps easily slip, leading to fastening failure, and the need for two hands for fixing and difficulty for single-person operation. It provides a device for fixing equipment identification signs, including a clamp base; symmetrical first and second clamping claws are hinged to both sides of the clamp base; knurled bolts connect the ends of the first and second clamping claws away from the clamp base; a positioning screw passes through the clamp base axially; a positioning block is located at the end of the positioning screw near the first and second clamping claws; a first and second wing nuts are threaded onto the positioning screw, located at opposite ends of the clamp base; and an equipment identification sign is detachably installed radially on the clamp base. The advantages of this utility model are: avoiding slippage failure, convenient operation, improved fixing reliability and efficiency, reduced safety hazards, and lower maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of signage installation technology, and more specifically, to a device for fixing equipment signs. Background Technology

[0002] In industrial production and equipment maintenance scenarios, the fixing of equipment identification signs usually relies on various fastening devices. Among them, hose clamps are one of the most widely used equipment identification sign fixing devices. Existing hose clamps are mainly composed of three core components: clamp band, clamp seat, and fastening bolts. Their working principle is as follows: by tightening the internal fastening bolts, the thread transmission of the fastening bolts drives the open ring on the clamp band, thereby driving the clamp band to gradually contract, so that the clamp band wraps around and tightly fits the outer wall of the carrier such as pipes and hoses, thereby fixing the identification sign.

[0003] However, existing hose clamps have significant technical defects in actual use. On the one hand, during the tightening process, if there is poor contact between the tightening bolt and the clamp band, the threads are prone to slippage, leading to tightening failure and inability to ensure the stable fixation of the identification sign. This may not only cause the identification sign to fall off or be lost, but may also cause equipment management chaos or safety hazards due to unclear markings. On the other hand, due to the small overall size of the hose clamp, the operation is extremely inconvenient when tightening the tightening bolt with a screwdriver. The operator must first hold the hose clamp body with their hand to prevent it from shifting under force, and at the same time, they must hold the screwdriver and the tightening bolt in place to prevent the screwdriver from slipping. This operation process, which requires the cooperation of both hands, not only greatly increases the difficulty of operation, but also significantly hinders single-person operation, reduces installation and maintenance efficiency, and makes it difficult to meet the needs of efficient and convenient equipment marking fixation. Utility Model Content

[0004] The present invention aims to provide a device for fixing equipment identification signs, in order to solve the problems of existing fixing devices, such as bolts and hoops easily slipping and causing fastening failure, and the need for both hands to fix and difficulty for single-person operation.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This utility model provides a device for fixing equipment identification signs, which includes a clamp;

[0007] The first clamp and the second clamp are respectively hinged to both sides of the clamp, and the first clamp and the second clamp are symmetrically distributed at both ends of the clamp.

[0008] The ends of the first and second clamping jaws furthest from the clamping seat are connected to each other by knurled bolts.

[0009] A positioning screw is axially extending through the aforementioned clamp, and a positioning block is provided at one end of the positioning screw near the first and second jaws. A first wing nut and a second wing nut are threaded onto the positioning screw, and the first wing nut and the second wing nut are located at both ends of the aforementioned clamp.

[0010] A detachable equipment nameplate is mounted radially on the aforementioned clamp.

[0011] In use, the operator manually loosens the knurled bolts, opens the first and second clamps, places the device on the pipe or nut to be fixed, manually tightens the knurled bolts, locks the first and second clamps, pushes the positioning screw until the positioning block contacts the pipe or nut, manually tightens the first wing nut, and if necessary, uses an adjustable wrench to tighten the first wing nut, ensuring the positioning block and the pipe or nut are tightly fitted together, and tightens the second wing nut to prevent the positioning screw from loosening.

[0012] The equipment identification plate fixing device disclosed in this embodiment has the aforementioned positioning block, which facilitates the clamping of the pipe or nut to be fixed by the positioning block, thereby restricting the movement and rotation freedom of the fixing device along the Y-axis, so that the device is firmly fixed to the pipe or nut. By setting a first wing nut and a second wing nut at both ends of the aforementioned clamp and threading them onto the aforementioned positioning screw, the aforementioned positioning screw can be locked to prevent the aforementioned positioning block from loosening. Thus, the equipment identification plate fixing device has the beneficial effects of avoiding slippage failure, convenient operation, improving fixing reliability and efficiency, reducing safety hazards and reducing maintenance costs.

[0013] Optionally, the first gripper and the second gripper are symmetrical arc-shaped strip structures.

[0014] This configuration improves the friction on the inner walls of the first and second grippers, allowing them to securely grip the pipe or nut that needs to be fixed, effectively preventing slippage.

[0015] Optionally: A first movable hinge and a second movable hinge are respectively provided between the first gripper and the second gripper and the two sides of the clamping seat;

[0016] One end of the first movable hinge is fixed to one side of the clamp by a screw, and the other end of the first movable hinge is fixed to one end of the first clamp by a screw.

[0017] One end of the second movable hinge is fixed to the other side of the clamp by a screw, and the other end of the second movable hinge is fixed to one end of the second jaw by a screw.

[0018] This configuration allows for flexible opening and closing of the first and second grippers to accommodate different workpieces, thanks to the first and second movable hinges. It also ensures connection stability and reduces clamping deviation through the rigid fixation of screws. Furthermore, the detachable screw connection reduces assembly difficulty and maintenance costs. The overall structure is simple and highly adaptable.

[0019] Optionally, the rotation angle of the first movable hinge and the second movable hinge is 0° to 180°.

[0020] This configuration ensures that the first and second grippers have sufficient opening and closing range to accommodate the clamping requirements of pipes or nuts of different sizes. It also prevents excessive rotation of the first and second movable hinges, which could lead to structural damage or clamping failure, by limiting the angle. This further enhances the safety and reliability of the device. At the same time, it makes the movement range of the first and second grippers more controllable, which is conducive to accurately achieving stable clamping and releasing operations on pipes or nuts.

[0021] Optionally: the first jaw and the second jaw respectively have a first protrusion and a second protrusion at the ends away from the clamping seat, the first protrusion and the second protrusion have a coaxial threaded hole, and the knurled bolt is threaded into the threaded hole.

[0022] With this configuration, the knurled bolts can be tightened or loosened in the threaded holes on the first and second protrusions, making it easier for the first and second clamps to clamp or loosen the pipe or nut, thus achieving a preliminary fixing effect.

[0023] Optionally, the outer surface of the thread head of the above-mentioned knurled bolt has an anti-slip surface.

[0024] With this design, the anti-slip surface effectively improves the anti-slip properties of the knurled bolt, preventing slippage when the operator turns the knurled bolt, and facilitating the locking effect between the knurled bolt and the threaded hole.

[0025] Optionally, the clamp is provided with an axial hole, and the positioning screw is located in the axial hole.

[0026] With this configuration, the aforementioned shaft hole facilitates the axial movement and adjustment of the positioning screw along the clamp, thereby making it easier to push the positioning block to fix the pipe or nut that needs to be fixed.

[0027] Optionally: A rectangular slot is provided on the side of the clamp near the equipment sign, the rectangular slot passes through the shaft hole, the bottom of the equipment sign is located in the rectangular slot, a fixing hole is provided at the bottom of the equipment sign, the fixing hole is coaxial with the shaft hole, and the positioning screw passes through the fixing hole and the shaft hole.

[0028] With this configuration, since the equipment sign is directly inserted into the rectangular slot of the clamp, the equipment sign can be directly replaced after the positioning screw is pulled out, which improves the efficiency of disassembly and assembly of the equipment sign.

[0029] Optionally: the positioning block has a V-shaped block on the side away from the clamp, the opening of the V-shaped block corresponds to the knurled bolt, and the positioning block and the V-shaped block are integrally formed.

[0030] This configuration restricts the device's four degrees of freedom: the translational degrees of freedom along the X and Z axes, and the rotational degrees of freedom around the X and Z axes. At the same time, it increases the frictional force by increasing the contact area between the first gripper, the second gripper, and the V-block and the pipe or nut.

[0031] Optionally, the inner surfaces of the first and second grippers and the inner surface of the V-shaped block of the positioning block are both provided with rubber.

[0032] This design, with the rubber layer, helps protect the pipes or nuts that need to be secured, while also increasing friction to prevent displacement and rotation of the securing device.

[0033] In summary, the equipment identification sign fixing device disclosed in this utility model has the beneficial effects of avoiding slippage failure, convenient operation, improving fixing reliability and efficiency, reducing safety hazards and lowering maintenance costs. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a three-dimensional perspective view of a device for fixing an identification sign according to an embodiment of the present utility model;

[0036] Figure 2 This is a top view of a device for fixing an equipment identification sign according to an embodiment of the present utility model;

[0037] Figure 3 This is a front view of a device for fixing an equipment identification sign according to an embodiment of the present utility model;

[0038] Figure 4 This is a side view of a device for fixing an equipment identification sign according to an embodiment of the present utility model;

[0039] Figure 5 This is a front view of the equipment sign in an embodiment of this utility model.

[0040] Icons: 1-Clamping seat, 2-First clamping jaw, 3-Second clamping jaw, 4-Knurled bolt, 5-Positioning screw, 6-Positioning block, 7-First wing nut, 8-Second wing nut, 9-Equipment sign, 10-First movable hinge, 11-Second movable hinge, 12-First protrusion, 13-Second protrusion, 14-Threaded hole, 15-Anti-slip surface, 16-Shaft hole, 17-Rectangular slot, 18-Fixing hole, 19-V-block. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] 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 to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] Example 1

[0044] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This embodiment proposes a device for fixing equipment identification plates, including a clamp 1;

[0045] The clamping base 1 is hinged to the two sides of the first clamping jaw 2 and the second clamping jaw 3 respectively, and the first clamping jaw 2 and the second clamping jaw 3 are symmetrically distributed at both ends of the clamping base 1.

[0046] The ends of the first clamp 2 and the second clamp 3 furthest from the clamping seat 1 are connected by knurled bolts 4.

[0047] A positioning screw 5 passes through the axial direction of the clamp 1. The end of the positioning screw 5 near the first jaw 2 and the second jaw 3 has a positioning block 6. A first wing nut 7 and a second wing nut 8 are threaded onto the positioning screw 5. The first wing nut 7 and the second wing nut 8 are located at the two ends of the clamp 1, respectively.

[0048] A removable equipment sign 9 is mounted radially on the clamp 1.

[0049] In use, the operator manually loosens the knurled bolt 4, opens the first clamp 2 and the second clamp 3, places the device on the pipe or nut that needs to be fixed, manually tightens the knurled bolt 4, locks the first clamp 2 and the second clamp 3, pushes the positioning screw 5 until the positioning block 6 contacts the pipe or nut, manually tightens the first wing nut 7, and if necessary, uses an adjustable wrench to tighten the first wing nut 7 to ensure that the positioning block 6 and the pipe or nut are tightly fitted together, and tightens the second wing nut 8 to prevent the positioning screw 5 from loosening.

[0050] The equipment identification sign fixing device disclosed in this embodiment has a positioning block 6, which facilitates the clamping of the pipe or nut to be fixed by the positioning block 6, thereby restricting the movement and rotation freedom of the fixing device along the Y-axis, so that the device is firmly fixed to the pipe or nut. By setting a first wing nut 7 and a second wing nut 8 at both ends of the clamp 1 and threadedly connecting them to the positioning screw 5, the positioning screw 5 can be locked to prevent the positioning block 6 from loosening. Thus, the equipment identification sign fixing device has the beneficial effects of avoiding slippage failure, convenient operation, improving fixing reliability and efficiency, reducing safety hazards and reducing maintenance costs.

[0051] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The first clamp 2 and the second clamp 3 are symmetrical arc-shaped strip structures. This design helps to increase the friction on the inner walls of the first clamp 2 and the second clamp 3, so that the first clamp 2 and the second clamp 3 can firmly hug the pipe or nut that needs to be fixed, effectively avoiding the occurrence of slippage.

[0052] A first movable hinge 10 and a second movable hinge 11 are respectively provided between the first jaw 2 and the second jaw 3 and the two sides of the clamping base 1. One end of the first movable hinge 10 is fixed to one side of the clamping base 1 by a screw, and the other end of the first movable hinge 10 is fixed to one end of the first jaw 2 by a screw. One end of the second movable hinge 11 is fixed to the other side of the clamping base 1 by a screw, and the other end of the second movable hinge 11 is fixed to one end of the second jaw 3 by a screw. In this way, the first jaw 2 and the second jaw 3 can be flexibly opened and closed to adapt to different workpieces by means of the first movable hinge 10 and the second movable hinge 11. The rigid fixation of the screw can ensure the connection stability and reduce clamping deviation. At the same time, the detachable screw connection also reduces the assembly difficulty and maintenance cost. The overall structure is simple and highly applicable.

[0053] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The rotation angle of the first movable hinge 10 and the second movable hinge 11 is 0° to 180°. This ensures that the first gripper 2 and the second gripper 3 have sufficient opening and closing range to meet the clamping requirements of pipes or nuts of different sizes. At the same time, the angle limitation can prevent the first movable hinge 10 and the second movable hinge 11 from excessively rotating, which could cause structural damage or clamping failure. This further improves the safety and reliability of the device. It also makes the movement range of the first gripper 2 and the second gripper 3 more controllable, which is conducive to accurately achieving stable clamping and releasing operations on pipes or nuts.

[0054] The first gripper 2 and the second gripper 3 have a first protrusion 12 and a second protrusion 13 respectively at the ends away from the clamping seat 1. The first protrusion 12 and the second protrusion 13 have coaxial threaded holes 14. Knurled bolts 4 are threaded into the threaded holes 14. By tightening or loosening the knurled bolts 4 in the threaded holes 14 on the first protrusion 12 and the second protrusion 13, it is easy to clamp or loosen the pipe or nut with the first gripper 2 and the second gripper 3, so as to achieve the effect of initial fixation.

[0055] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The outer surface of the knurled bolt 4 has an anti-slip surface 15, which effectively improves the anti-slip properties of the knurled bolt 4 and prevents slippage when the operator turns the knurled bolt 4. This facilitates the locking effect of the knurled bolt 4 and the threaded hole 14.

[0056] The clamp 1 has an axial hole 16, and the positioning screw 5 is located in the axial hole 16. The setting of the axial hole 16 is conducive to the positioning screw 5 moving and adjusting along the axial direction of the clamp 1, which in turn facilitates pushing the positioning block 6 to fix the pipe or nut that needs to be fixed.

[0057] A rectangular slot 17 is provided on the side of the clamp 1 near the equipment label 9. The rectangular slot 17 passes through the shaft hole 16. The bottom of the equipment label 9 is located in the rectangular slot 17. A fixing hole 18 is provided at the bottom of the equipment label 9. The fixing hole 18 is coaxial with the shaft hole 16. The positioning screw 5 passes through the fixing hole 18 and the shaft hole 16. Since the equipment label 9 is directly inserted into the rectangular slot 17 of the clamp 1, the equipment label 9 can be directly replaced after the positioning screw 5 is pulled out, which can improve the disassembly and assembly efficiency of the equipment label 9.

[0058] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The positioning block 6 has a V-block 19 on the side away from the clamp 1. The opening of the V-block 19 corresponds to the knurled bolt 4. The positioning block 6 and the V-block 19 are integrally formed, which can restrict the four degrees of freedom of the device, namely the translational degree of freedom along the X-axis and Z-axis, and the rotational degree of freedom around the X-axis and Z-axis. At the same time, the friction is increased by increasing the contact area between the first clamp 2, the second clamp 3 and the V-block 19 and the pipe or nut.

[0059] The inner surfaces of the first gripper 2 and the second gripper 3, as well as the inner surface of the V-shaped block 19 of the positioning block 6, are all provided with rubber (not shown in the figure). The rubber helps to protect the pipes or nuts that need to be fixed, and at the same time, it increases the friction and prevents the fixing device from shifting or rotating.

[0060] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, a device identification plate fixing device has the following usage method:

[0061] Step 1: Unlock the grippers. The operator manually loosens the knurled bolt 4 to release the locking state of the first gripper 2 and the second gripper 3. Then, through the rotation of the first movable hinge 10 and the second movable hinge 11, the first gripper 2 and the second gripper 3 are opened outward to form an opening that allows pipes or nuts to be inserted.

[0062] Step 2: Place the fixing device and move it to the pipe or nut that needs to be fixed. Adjust the position of the device so that the first clamp 2 and the second clamp 3, which are in the open state, wrap around the pipe or nut from both sides, ensuring that the pipe or nut is within the clamping range of the first clamp 2 and the second clamp 3.

[0063] Step 3: Lock the position of the gripper. The operator manually tightens the knurled bolt 4. The tightening force of the knurled bolt 4 drives the first gripper 2 and the second gripper 3 to gradually tighten until the first gripper 2 and the second gripper 3 are tightly clamped on the pipe or nut, thus locking the position of the first gripper 2 and the second gripper 3 to prevent the device from shifting in subsequent operations.

[0064] Step 4: Adjust the positioning screw 5 by pushing it along the preset trajectory until the positioning block 6 contacts the surface of the pipe or nut. At this point, stop pushing and maintain the current position of the positioning screw 5.

[0065] Step 5: Initially fix the fixing device. The operator manually tightens the first wing nut 7. The friction generated by the threaded engagement between the first wing nut 7 and the positioning screw 5 fixes the initial position of the positioning screw 5. If the manual tightening force is insufficient, use an adjustable wrench to further tighten the first wing nut 7 to ensure that the positioning screw 5 will not move easily in subsequent operations.

[0066] Step Six: Final Fixing of the Fixing Device. Observe the fit between the V-shaped block 19 of the positioning block 6 and the pipe or nut. When it is confirmed that the two fit tightly without gaps, the operator tightens the second wing nut 8. Through the double locking action of the first wing nut 7 and the second wing nut 8, the position of the positioning screw 5 and the positioning block 6 is completely fixed, completing the installation of the entire fixing device to prevent the positioning screw 5 from loosening. This device can be fixed to pipes with a diameter of 20mm to 70mm or external hexagonal nuts with an opposite side S of 20mm to 70mm.

[0067] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5In this embodiment, the positioning block 6 is configured as a long V-shaped block 19 structure, which restricts the four degrees of freedom of the device, namely the degree of freedom of movement along the X and Z axes and the degree of freedom of rotation around the X and Z axes. According to the three-point positioning principle, the contact ends of the first gripper 2 and the second gripper 3 work together with the two surfaces of the V-shaped block 19 to fix the device on the pipe or nut. The first gripper 2 and the second gripper 3 are configured as strip structures, and the positioning block 6 adopts a long V-shaped block 19 structure. In this way, the frictional force is increased by increasing the contact area between the first gripper 2, the second gripper 3 and the V-shaped block 19 and the pipe or nut. Under the action of the positioning screw 5, the degree of freedom of movement and rotation along the Y axis is restricted, so that the device is firmly fixed on the pipe or nut.

[0068] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, the first wing nut 7 and the second wing nut 8 can be manually rotated, which greatly simplifies the operation compared to using a screwdriver and makes it easier for the operator to install. The positioning screw 5 is threadedly engaged with the first wing nut 7 and the second wing nut 8, and the knurled bolt 4 is engaged with the threaded holes 14 on the first clamp 2 and the second clamp 3. This method eliminates the possibility of slippage and greatly extends the service life of the fixing device.

[0069] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, when the fixing device is on the bolt (nut) used for the pipe end or equipment, there is no need to loosen the knurled bolt 4. The annular structure composed of the first clamp 2 and the second clamp 3 is directly put on the nut of the pipe end or equipment, which simplifies the operation process.

[0070] Example 2

[0071] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Based on Embodiment 1, this embodiment can be used not only for fixing equipment identification signs, but also for fixing pipes, overhead pipes, etc., simply by fixing the clamp 1 to the ground or wall with anchor bolts.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for fixing equipment identification signs, characterized in that: Includes clamp (1); The clamping base (1) is hinged to the two sides of the clamping base (1) with a first clamping claw (2) and a second clamping claw (3) respectively. The first clamping claw (2) and the second clamping claw (3) are symmetrically distributed at both ends of the clamping base (1). The ends of the first jaw (2) and the second jaw (3) away from the clamping seat (1) are connected to each other by knurled bolts (4). A positioning screw (5) passes through the axial direction of the clamp (1). The positioning screw (5) has a positioning block (6) at one end near the first jaw (2) and the second jaw (3). A first wing nut (7) and a second wing nut (8) are threaded onto the positioning screw (5). The first wing nut (7) and the second wing nut (8) are located at both ends of the clamp (1). A detachable equipment sign (9) is mounted radially on the clamp (1).

2. The equipment identification plate fixing device according to claim 1, characterized in that: The first gripper (2) and the second gripper (3) are symmetrical arc-shaped strip structures.

3. The equipment identification plate fixing device according to claim 1, characterized in that: A first movable hinge (10) and a second movable hinge (11) are respectively provided between the first gripper (2) and the second gripper (3) and the two sides of the clamping seat (1); One end of the first movable hinge (10) is fixed to one side of the clamp (1) by a screw, and the other end of the first movable hinge (10) is fixed to one end of the first clamp (2) by a screw; One end of the second movable hinge (11) is fixed to the other side of the clamp (1) by a screw, and the other end of the second movable hinge (11) is fixed to one end of the second jaw (3) by a screw.

4. The equipment identification plate fixing device according to claim 3, characterized in that: The rotation angles of the first movable hinge (10) and the second movable hinge (11) are 0° to 180°.

5. The equipment identification plate fixing device according to claim 1, characterized in that: The first jaw (2) and the second jaw (3) have a first protrusion (12) and a second protrusion (13) respectively at the end away from the clamping seat (1). The first protrusion (12) and the second protrusion (13) have a coaxial threaded hole (14). The knurled bolt (4) is threaded into the threaded hole (14).

6. The equipment identification plate fixing device according to claim 1, characterized in that: The outer surface of the knurled bolt (4) has an anti-slip surface (15).

7. The equipment identification plate fixing device according to claim 1, characterized in that: The clamp (1) has an axial hole (16) and the positioning screw (5) is located in the axial hole (16).

8. The equipment identification plate fixing device according to claim 7, characterized in that: The clamp (1) has a rectangular slot (17) on the side near the equipment sign (9), the rectangular slot (17) passes through the shaft hole (16), the bottom of the equipment sign (9) is located in the rectangular slot (17), the bottom of the equipment sign (9) has a fixing hole (18), the fixing hole (18) is coaxial with the shaft hole (16), and the positioning screw (5) passes through the fixing hole (18) and the shaft hole (16).

9. The equipment identification plate fixing device according to claim 1, characterized in that: The positioning block (6) has a V-shaped block (19) on the side away from the clamp (1), and the opening of the V-shaped block (19) corresponds to the knurled bolt (4). The positioning block (6) and the V-shaped block (19) are integrally formed.

10. A device for fixing equipment identification signs according to claim 9, characterized in that: The inner surfaces of the first gripper (2) and the second gripper (3) and the inner surface of the V-shaped block (19) of the positioning block (6) are all provided with rubber.

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