Track fastening device for electrical equipment
By combining the base and sub-body design and using a two-way clamping mechanism with a conical or V-shaped structure, the problems of unstable clamping and track deformation in the electrical equipment track fastening device are solved, achieving a stable clamping and balanced force.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SWITCHLAB (SHANGHAI) CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-31
AI Technical Summary
The existing track fastening devices for electrical equipment are prone to problems such as unstable fastening, shaking, and uneven stress deformation of the track due to different bearing positions on the upper and lower sides of the track during long-term use.
A track fastening device is designed, comprising a base body and a sub-body. The base body is provided with a hook and a guide channel, while the sub-body is provided with multiple fastening parts and secondary fastening parts. The inclined structure and the secondary inclined structure form a conical or V-shaped structure, which enables bidirectional clamping to the upper and lower sides of the track, ensuring a stable clamping.
By employing a two-way clamping mechanism, the problems of unstable clamping and track deformation are improved, achieving stable track fixation and balanced force distribution, thereby enhancing the stability and service life of the device.
Smart Images

Figure CN224583491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the design of a track fastening device for electrical equipment; in particular, it refers to a fastening structure / device that enables electrical equipment to be securely suspended and fastened on a track, providing online operation for personnel. Background Technology
[0002] It is a well-known art to use industrial calculators, system hosts, power supplies, or similar electronic devices with snap-fit structures that allow them to be suspended on rails (or DIN rails) for online operation. Typical examples are provided in patents CN215872357 U "Guide Rail Snap-fit" and CN 217957541 U "DIN Rail Snap-fit Device".
[0003] These types of snap-fit structures (or fastening devices) are installed on electronic / electrical equipment and typically include a combination of a base plate and a sliding plate; one end of the base plate has a hook, and one end of the sliding plate has a fastening part. A spring is provided between the base plate and the sliding plate, allowing the sliding plate to reciprocate on the base plate; and, in conjunction with the hook of the base plate and the fastening part of the sliding plate, they are fastened together at the positions of the upper and lower sides of a track.
[0004] The prior art also discloses a snap-fit device; for example, patent CN 105302236 B, "Snap-fit Device," provides a feasible embodiment. This embodiment includes hooks on both sides of a base plate, and a sliding plate with a bent abutment located between the two hooks. Therefore, when the hooks on both sides are snapped onto the upper side of the track, the sliding plate can only abut against the lower side of the track with its single abutment corresponding to the middle position of the two hooks (or the base plate).
[0005] As those skilled in this craft know, electronic / electrical equipment has a large load-bearing capacity. During long-term use, such snap-fit structures (or fastening devices) are prone to instability / wobbling due to the different load-bearing positions on the upper and lower sides of the (rail) (especially since the lower side of the rail only has a single top support), resulting in uneven stress / deformation of the rail.
[0006] The old method also disclosed a snap-fit device; for example, patent CN 220081854 U, "A novel snap-fit for installing electronic and electrical equipment and its usage structure," provides a specific embodiment. This embodiment has four parallel clamping plates protruding towards the substrate hooks on a sliding plate; the front ends of the clamping plates have a beveled structure. When the substrate hooks are engaged on the upper side of the track, the beveled structure of the clamping plates of the sliding plate abuts against the lower end of the lower side of the track.
[0007] In other words, the above embodiment uses four clamping plates of the sliding plate to evenly press against the lower end of the lower side of the track in order to minimize uneven force or easy deformation of the track.
[0008] One issue concerning the structure and application of such snap-fit structures (or fastening devices) is that conventional techniques still suffer from instability / wobbling in the supporting action. This is because the aforementioned inclined structure of the clamping plate can only rest against the lower end of the lower side of the track, which cannot reliably and stably fix the snap-fit structure (or fastening device) to the track for a long period of time under the weight of electronic / electrical equipment, and this is not the desired situation.
[0009] Representatively speaking, these reference data demonstrate the design techniques of conventional snap-fit structures (or fastening devices) in terms of structure and application; they also reflect some problems existing in the actual use of these devices. If their structure is redesigned and its construction differs from conventional devices, its usage or application range can be changed, thus differing from the old methods; in essence, a more ideal snap-fit structure (or fastening device) will be established to improve the shortcomings of conventional techniques.
[0010] For example, considering structural simplicity and ease of manufacture, the following issues must be addressed or improved simultaneously:
[0011] 1. A fastening device is provided, which can cooperate with the hook of the base plate (or substrate) to make the sliding plate (or sub-body) have an average and / or symmetrical fastening part or clamping structure, thereby improving the situation in the prior art where the fastening is unstable / shaking due to the different bearing positions of the upper and lower (two) sides of the (track), resulting in uneven force / deformation of the track.
[0012] 2. The fastening device must enable the fastening part or clamping structure of the sliding plate (or sub-body) to simultaneously (bidirectionally) clamp the upper and lower ends / areas of the lower side of the track, improving the situation where the supporting action is unstable / shaking in the old method.
[0013] These issues were neither taught nor specifically revealed in the aforementioned reference data. Utility Model Content
[0014] Therefore, the main objective of this utility model is to provide a track fastening device for electrical equipment, comprising a base and a sub-body disposed on the base; the base defines a first region with hook portions and a second region with combined elastic elements. The sub-body is provided with multiple fastening portions, sub-fastening portions, and pressing portions of the combined elastic elements protruding towards the first region of the base, allowing the sub-body to form a reciprocating and freely movable shape on the base. Furthermore, the fastening portions located on both sides of the sub-body are formed with inclined structures to facilitate pressing against at least the lower or upper end region of the track (lower side), and the sub-fastening portions located between the two sides of the sub-body (or between two fastening portions) are formed with sub-inclined structures to clamp onto the upper or lower end region of the track (lower side). Together with the hook portions of the base, they form a reinforced clamping effect and a stable effect, improving upon the poor clamping effect, uneven clamping force, and easy track deformation issues of conventional techniques.
[0015] According to the track fastening device for electrical equipment of this utility model, the two fastening parts and two secondary fastening parts of the main body are arranged in parallel; and the inclined surface structure of the fastening part and the secondary inclined surface structure of the secondary fastening part together form a conical profile or V-shaped structure, which is beneficial to accommodate the different thicknesses of the track (upper and lower) sides, so as to allow the inclined surface structure and the secondary inclined surface structure to be securely / steadily clamped to the upper and lower end areas of the lower side of the track.
[0016] According to the track fastening device for electrical equipment of the present invention, the height of the secondary fastening part of the secondary body is greater than the height of the fastening part, so that when the secondary body is assembled on the base, the bottom edge of the secondary fastening part can abut against the base, so as to facilitate the stable and smooth movement of the secondary body on the base. Attached Figure Description
[0017] [ Figure 1 [This is a three-dimensional structural diagram of the present invention; it shows the combined structure of the base body, the sub-body, and the track.]
[0018] [ Figure 2 ]yes Figure 1 The exploded structure diagram shows the structural configuration of the matrix, sub-body, and orbital.
[0019] [ Figure 3 [This is a schematic diagram of an operational embodiment of the present invention; it depicts the situation where the fastening device is installed on the electrical equipment and the fastening device is fastened on the track.]
[0020] [ Figure 4 ]yes Figure 3 A schematic diagram of a planar structure; depicting the situation where the fastening device is installed on the electrical equipment and fastened to the track.
[0021] [ Figure 5This is an exploded structural diagram of a modified embodiment of the present invention; it shows the structural configuration of the base, sub-body, and track.
[0022] [ Figure 6 ]yes Figure 5 A schematic diagram of a planar structure of an operational embodiment; depicting the situation where the fastening device is installed on the electrical equipment and the fastening device is fastened on the track.
[0023] Explanation of symbols in the attached diagram:
[0024] 10: Matrix
[0025] 11: Zone 1
[0026] 12: Second District
[0027] 13: Hook and button section
[0028] 14: Guide edge
[0029] 15: Secondary guide side
[0030] 16: Guiding path
[0031] 17: Positioning Section
[0032] 19: Plate-like structure
[0033] 20: Subsidiary body
[0034] 21: Sloping structure
[0035] 22: Sub-sloping structure
[0036] 23: Fastening part
[0037] 24: Secondary fastening part
[0038] 26: Bottom edge
[0039] 27: Pressing Department
[0040] 30: Track
[0041] 31: Upper area
[0042] 32: Lower area
[0043] 33: Top side
[0044] 34: Lower side
[0045] 35: Upper area
[0046] 36: Lower area
[0047] 40: Elasticity
[0048] 50: Electrical equipment Detailed Implementation
[0049] Please see Figure 1 , 2 and Figure 3 The present invention relates to a track fastening device for electrical equipment, comprising a base and a sub-body, generally designated by reference numerals 10 and 20, respectively. After the base 10 is combined with the sub-body 20, they can be fastened together on a track 30 (or a DIN track) as is known in the art.
[0050] In the following description, terms such as front (or front end), back (or rear end), front part, rear part, upper end, lower end, (upper, lower) side, left side, right side, etc., refer to the direction shown in the figure. Also, track 30 is defined with an upper side 33 and a lower side 34; the upper side 33 has an upper region 31 (located in the left area of the figure) and a lower region 32 (located in the right area of the figure), and the lower side 34 has an upper region 35 (located in the left area of the figure) and a lower region 36 (located in the right area of the figure).
[0051] The figure shows a plate-like structure 19 with a geometrical outline (e.g., rectangle, etc.) on the base 10; the base 10 defines a first region 11 and a second region 12 connecting the first region 11; the first region 11 has hook portions 13 on both sides for fastening to the upper side 33 of a track 30. Guide edges 14 are formed on both sides of the first region 11 adjacent to the hook portions 13 (or plate-like structure 19).
[0052] In the adopted embodiment, the width of the second region 12 is smaller than the width of the first region 11; secondary guide edges 15 are formed on both sides of the second region 12, so that the guide edge 14 of the first region 11 and the secondary guide edge 15 of the second region 12 together define a guide channel 16. Furthermore, the second region 12 is provided with a positioning part 17 for assembling one end of the elastic element 40; the elastic element 40 is selected as a helical spring.
[0053] The figure also shows the configuration of the second section 12 combined with the sub-body 20. The sub-body 20 is provided with a pressing part 27, which is combined with the other end of the elastic element 40, so that the sub-body 20 can be formed into a shape that can move back and forth freely on the base 10.
[0054] In the adopted embodiment, the sub-body 20 is provided with a plurality of fastening portions 23 and secondary fastening portions 24 protruding toward the first region 11 of the base body. Specifically, the two fastening portions 23 are arranged in parallel (parallel) configurations, located on the side regions of the sub-body 20, and can move along the guide edges 14 and 15 of the base body 10 on the guide channel 16. Furthermore, the front end region of the fastening portion 23 forms at least one inclined surface structure 21 (or conical structure).
[0055] Assuming the tip of the front end area of the fastening part 23 is taken as a reference, the inclined structure 21 is inclined downward toward the second area 12 (or away from the hook part 13) or downward to the left in the figure (and / or downward toward the plate structure 19) to facilitate pressing at least against the lower end area 36 of the lower side 34 of the track 30.
[0056] The figure shows that the sub-body 20 has two sub-fastening parts 24 between the two fastening parts 23, which are parallel to the fastening parts 23. The front end area of the sub-fastening part 24 is provided with at least one inclined surface structure 22; the inclination direction of the sub-inclination surface structure 22 is opposite to the inclination direction of the inclined surface structure 21.
[0057] Specifically, assuming the endpoint of the front end area of the secondary fastening part 24 is taken as the reference, the secondary inclined surface structure 22 is inclined upward towards the second area 12 or upward to the right in the figure (or upward away from the plate structure 19), so that the inclined surface structure 21 and the (adjacent) secondary inclined surface structure 22 together form a conical profile or a V-shaped structure (or a scissor-like structure) when viewed from the side (or plan view) in the figure.
[0058] It is understood that the above-mentioned inclined structure 21, in combination with the secondary inclined structure 22, is conducive to adapting to the different thicknesses of the lower side 34 and / or upper side 33 of the track 30, so as to allow the inclined structure 21 and the secondary inclined structure 22 to be reliably and securely clamped together in the upper end area 35 and lower end area 36 of the lower side 34 of the track.
[0059] Please refer to Figure 3 , 4 The fastening device (or base 10 and sub-body 20) is mounted on the electrical equipment 50 (and fastened together to the track 30). When the hook part 13 of the base 10 engages the upper side 33 (and / or upper end area 31 and lower end area 32) of the track 30, the operator can pull the sub-body 20 (or push the sub-body 20 through the inclined structure 21 and the sub-inclined structure 22), so that the inclined structure 21 of the fastening part 23 and the sub-inclined structure 22 of the sub-fastening part 24, in conjunction with the energy stored in the elastic device 40, engage (bidirectionally) with the upper end area 35 and the lower end area 36 of the lower side 34 of the track 30, together forming a stable effect that strengthens the clamping action and balances the clamping force in both directions, improving the poor clamping action, uneven clamping force, and easy deformation of the track caused by conventional techniques.
[0060] In other words, when the hooks 13 on both sides of the base 10 engage the upper end region 31 and lower end region 32 of the upper side 33 of the track 30, the sub-body 20 uses the inclined surface structure 21 of the fastening part 23 to press against the lower end region 36 of the lower side 34 of the track 30, and cooperates with the sub-inclined surface structure 22 of the sub-fastening part 24 to simultaneously (bidirectionally) engage with the upper end region 35 of the lower side 34 of the track 30 (for example, Figure 4The described situation) forms multiple locking points that provide average and bidirectional balance; it improves upon the situation where conventional techniques only provide unidirectional resistance to the lower side / lower end of the track.
[0061] It is understood that the distance between the two fastening portions 23 of the sub-body 20 can be evenly distributed in the form of at least two sub-fastening portions 24, and / or the distance from one set of fastening portions 23 to the sub-fastening portion 24 is the same as the distance from the other set of fastening portions 23 to the sub-fastening portion 24.
[0062] In a preferred embodiment, the height of the secondary fastening portion 24 of the secondary body 20 is greater than the height of the fastening portion 23, so that when the secondary body 20 is assembled on the base 10, the bottom edge 26 of the secondary fastening portion 24 is planar and abuts against the base 10 (or plate structure 19), which facilitates the stable and smooth movement of the secondary body 20 on the base 10 and / or improves the situation where abnormal noise is generated during the operation of the equipment or components.
[0063] Please see Figure 5 , 6 The diagram shows a modified embodiment; the front end region of the fastening portion 23 forms at least one inclined structure 21; referring to the same reference point mentioned above, the inclined structure 21 is inclined upward toward the second region 12 (or away from the hook portion 13) or upward to the right in the figure (and / or upward away from the plate structure 19) to facilitate pressing at least against the upper end region 35 of the lower side edge 34 of the track 30.
[0064] Furthermore, the front end area of the secondary fastening part 24 is provided with at least one inclined surface structure 22 (or conical structure); the inclination direction of the secondary inclined surface structure 22 is opposite to the inclination direction of the inclined surface structure 21. Referring to the same reference point mentioned above, the secondary inclined surface structure 22 is inclined downward towards the second area 12 or downward towards the left side of the figure (or downward towards the direction close to the plate structure 19), so that the inclined surface structure 21 and the (adjacent) secondary inclined surface structure 22 together form a conical profile or a V-shaped structure (or a scissor-like structure) when viewed from the side (or plan view) of the figure, which is conducive to the inclined surface structure 21 and the secondary inclined surface structure 22 being securely and stably clamped together (or bidirectionally) in the upper end area 35 and lower end area 36 of the lower side 34 of the track.
[0065] Therefore, when the hook part 13 of the base body 10 engages the upper side 33 (and / or upper end area 31, lower end area 32) of the track 30, the inclined structure 21 of the fastening part 23 of the sub-body 20 and the sub-inclined structure 22 of the sub-fastening part 24 simultaneously engage bidirectionally with the upper end area 35 and lower end area 36 of the lower side 34 of the track 30, forming an average and multiple engaging points.
[0066] Representatively speaking, this rail fastening device for electrical equipment, compared to the old method, has the following considerations and advantages, given its simplified structure and ease of manufacture:
[0067] 1. The base 10, the sub-body 20, and related mating structures have been redesigned. For example, the base 10 is provided with a hook-and-loop fastener.
[0068] 13, guide edge 14, secondary guide edge 15, and guide channel 16; the secondary body 20 is provided with a fastening part 23 and a secondary fastening part 24, such that the fastening part 23 is provided with a sloped structure 21 and the secondary fastening part 24 is provided with a secondary sloped structure 22, which together form a conical profile or a V-shaped structure, etc.; the height of the secondary fastening part 24 of the secondary body 20 is greater than the height of the fastening part 23, and the bottom edge 26 of the secondary fastening part 24 is in a planar shape and abuts against the base body 10, etc., which is obviously different from the conventional user and changes its use, operation mode or application range, and is different from the old method.
[0069] 2. In particular, the snap-fit structure formed by the base 10 and the sub-body 20, in conjunction with the hook part 13 of the base 10, makes the sub-body 20 form an average and / or symmetrical snap-fit part 23, a sub-snap-fit part 24, and a slope structure 21 and a sub-slope structure 22. At the same time, it provides a (balanced) action / mechanism for bidirectionally clamping the upper end area 35 and the lower end area 36 of the lower side 34 of the track 30. This improves the situation in the prior art where the clamping force is reduced due to the different bearing positions of the upper and lower (two) sides of the track and the fact that it can only support in one direction, resulting in unstable snap-fit / shaking, uneven force on the track / deformation, and unstable / shaking of the supporting action in the old method.
[0070] Therefore, this utility model provides an effective track fastening device for electrical equipment, whose spatial form is different from that of the prior art and has advantages that cannot be matched by the old method, showing considerable progress, and has fully met the requirements of a utility model patent.
[0071] However, the above description is only a feasible embodiment of the present utility model and is not intended to limit the scope of the implementation of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent application are covered by the scope of the present utility model patent.
Claims
1. A track fastening device for an electrical appliance, characterized in that, The track fastening device for electrical equipment includes: A combination of a substrate (10) and a sub-subbody (20) disposed on the substrate (10); The substrate (10) has a plate-like structure (19) with a geometric outline. The substrate (10) has a first area (11) with a hook part (13) and a second area (12) with a combined elastic element (40). The sub-body (20) is provided with two fastening parts (23) and two secondary fastening parts (24) protruding towards the first region (11) of the base body (10); The sub-body (20) is provided with a pressing part (27) and a combined elastic element (40), so that the sub-body (20) can be formed in a reciprocating and freely moving shape on the base (10); The fastening part (23) is located on both sides of the sub-body (20) in a parallel shape, and the front end area of the fastening part (23) has at least one inclined structure (21); the inclined structure (21) is one of downward inclined towards the second area (12) and upward inclined towards the second area (12); The secondary fastening part (24) is located between the two fastening parts (23) in a parallel shape, and the front end area of the secondary fastening part (24) has at least one inclined structure (22); the secondary inclined structure (22) is one of upward inclined towards the second area (12) and downward inclined towards the second area (12); The tilt direction of the secondary inclined structure (22) is opposite to that of the inclined structure (21), so that when viewed from one side, the inclined structure (21) and the secondary inclined structure (22) together form a V-shaped structure.
2. The track fastening device for an electric appliance according to claim 1, wherein The inclined structure (21) takes the tip of the front end area of the fastening part (23) as a reference. The inclined structure (21) is one of the following: it is inclined downward in the direction away from the hook part (13) and downward in the direction close to the plate structure (19); or it is inclined upward in the direction away from the hook part (13) and upward in the direction away from the plate structure (19). The sub-sloping structure (22) takes the end point of the front end area of the sub-fastening part (24) as a reference. The sub-sloping structure (22) is one of two types: one is inclined upward in the direction away from the plate structure (19), and the other is inclined downward in the direction close to the plate structure (19).
3. The track fastening device for an electric appliance according to claim 1 or 2, characterized in that, The base (10) and the sub-body (20) can be jointly mounted on the electrical equipment (50) and fastened to a track (30); The track (30) is defined with an upper side (33) and a lower side (34); the upper side (33) has an upper region (31) and a lower region (32), and the lower side (34) has an upper region (35) and a lower region (36); The hook part (13) of the base (10) can be fastened to the upper side (33) of the track (30); The inclined structure (21) of the fastening part (23) can press against one of the lower end area (36) and upper end area (35) of the lower side (34) of the track (30), and the secondary inclined structure (22) of the secondary fastening part (24) can simultaneously clamp one of the upper end area (35) and lower end area (36) of the lower side (34) of the track (30).
4. The track fastening device for an electric appliance according to claim 1 or 2, wherein The matrix (10) The area of the first zone (11) adjacent to the plate-like structure (19) on both sides forms a guide edge (14); The width of the second zone (12) is smaller than the width of the first zone (11); secondary guide edges (15) are formed on both sides of the second zone (12), so that the guide edge (14) of the first zone (11) and the secondary guide edge (15) of the second zone (12) together define the shape of a guide channel (16); and The second zone (12) is provided with a positioning part (17) and a combination elastic element (40) at one end; the pressing part (27) of the sub-body (20) is combined with the other end of the elastic element (40), so that the two fastening parts (23) can move along the guide edge (14) and the sub-guide edge (15) on the guide channel (16) of the base (10).
5. The track fastening device for an electric appliance according to claim 3, wherein The first region (11) of the substrate (10) has guide edges (14) on both sides of the plate-like structure (19); The width of the second zone (12) is smaller than the width of the first zone (11); secondary guide edges (15) are formed on both sides of the second zone (12), so that the guide edge (14) of the first zone (11) and the secondary guide edge (15) of the second zone (12) together define the shape of a guide channel (16); and The second zone (12) is provided with a positioning part (17) and a combination elastic element (40) at one end; the pressing part (27) of the sub-body (20) is combined with the other end of the elastic element (40), so that the two fastening parts (23) can move along the guide edge (14) and the sub-guide edge (15) on the guide channel (16) of the base (10).
6. The track fastening device for an electric appliance according to claim 1 or 2, wherein The height of the secondary fastening part (24) of the secondary body (20) is greater than the height of the fastening part (23), so that when the secondary body (20) is assembled on the base (10), the bottom edge (26) of the secondary fastening part (24) abuts against the plate structure (19) of the base (10) in a planar shape.
7. The track fastening device for an electric appliance according to claim 3, wherein The height of the secondary fastening part (24) of the secondary body (20) is greater than the height of the fastening part (23), so that when the secondary body (20) is assembled on the base (10), the bottom edge (26) of the secondary fastening part (24) abuts against the plate structure (19) of the base (10) in a planar shape.
8. The track fastening device for an electric appliance according to claim 4, wherein The height of the secondary fastening part (24) of the secondary body (20) is greater than the height of the fastening part (23), so that when the secondary body (20) is assembled on the base (10), the bottom edge (26) of the secondary fastening part (24) abuts against the plate structure (19) of the base (10) in a planar shape.
9. The track fastening device for an electric appliance according to claim 5, wherein The height of the secondary fastening part (24) of the secondary body (20) is greater than the height of the fastening part (23), so that when the secondary body (20) is assembled on the base (10), the bottom edge (26) of the secondary fastening part (24) abuts against the plate structure (19) of the base (10) in a planar shape.